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Data as of Nov 3, 2026

205.240.0.0/13

86,016 anonymizer addresses · 16% · ISP proxy

Cogent Communications, LLC

Announcement
this exact prefix
No RPKI
Announced by
AS174
Type
Internet provider
75% of it

Residential-proxy exits

Proxy exits
30
<0.01% of its addresses · listed by providers
Always-on exits
3
10% of its exits
Spread
15 of 2,048
/24s with at least one exit
Providers
57
selling exits here

/24s with the most always-on exits

/24Always-on exitsProxy exits
205.243.126.0/2414
205.247.31.0/2413
205.243.118.0/2412
205.243.121.0/2404
205.243.125.0/2403
205.243.122.0/2402
205.243.72.0/2402
205.243.116.0/2402
205.243.124.0/2402
205.243.112.0/2401
205.243.117.0/2401
205.243.114.0/2401
205.243.65.0/2401
205.243.127.0/2401
205.243.73.0/2401

Proxy providers listing exits

  • 711Proxy
  • Ake.net
  • AnyIP
  • B2Proxy
  • BlurPath
  • BottingTools
  • BuyingProxy
  • ByteProxies
  • Byteful
  • CatProxies
  • CliProxy
  • ColaProxy
  • Datarama
  • EZProxies
  • EnigmaProxy
  • Evomi
  • FastProxy
  • FlashProxy
  • FlexyProxies
  • FloppyData
  • GSocks
  • Geonix
  • Geonode
  • GloryCloud
  • GonzoProxy
  • IPFly
  • IPPeak
  • Infatica
  • InfiniteProxies
  • LemonBright
  • LudaxProxy
  • MangoProxy
  • MoMoProxy
  • NextProxy
  • NodeProxy
  • NovProxy
  • NovaProxy
  • Novada
  • ProxiesVision
  • Proxiware
  • Proxy-Seller
  • ProxyEmpire
  • ProxyGeo
  • ProxyRack
  • Proxyma
  • PuraRoute
  • RainProxy
  • RapidProxy
  • ResiProxies
  • RoamProxy
  • Shifter
  • SwiftProxy
  • Thordata
  • TrueProxies
  • VantageProxies
  • VitalExclusive
  • WealthProxies
IPv4 market

Path

1 · Holder
Cogent Communications, LLC
record created Apr 24, 1995
2 · Leased from
Rackdog
for its owner Cogent Communications, LLC
3 · Announced by
AS174 Cogent Communications, LLC
4 · Use
Proxy providersnamed Bright Data
Internet provider

Operators, sellers and brokers

Proxy providers

NameParentIn 205.240.0.0/13/24s
Bright Data
4,0960.78%
16
Leased from

IP brokers

NameIn 205.240.0.0/13/24s
Rackdog
81,92016%
320
Leased from

Owners leasing their own space

NameIn 205.240.0.0/13/24s
Cogent Communications, LLC
57,34411%
224

Lineage

How this block came to its use, oldest first. The whole IPv4 market →

205.240.0.0/13

From the registry to its use

  1. Apr 24, 1995
    Registry record
    Cogent Communications, LLC
    Direct Allocation (legacy, pre-1997)
    205.240.0.0/13
  2. Jan 24, 2001
    Route object
    AS19105 FirstBank
    NTTCOM route object for AS19105 FirstBank, maintainer MAINT-AS19105
    205.243.23.0/24
  3. Dec 30, 2003
    Route object
    AS22046 Corserva, Inc.
    RADB route object for AS22046 Corserva, Inc., maintainer MAINT-AS174
    205.247.138.0/24
  4. Mar 3, 2004
    Route object
    AS32038 Institutions of Higher Learning
    ALTDB route object for AS32038 Institutions of Higher Learning, maintainer MAINT-AS32038
    205.247.195.0/24
  5. Jul 27, 2004
    Route object
    AS12049 Heritage NetWorks, LLC
    RADB route object for AS12049 Heritage NetWorks, LLC, maintainer MAINT-AS1828
    205.242.60.0/23
  6. Jul 29, 2004
    Route object
    AS12049 Heritage NetWorks, LLC
    RADB route object for AS12049 Heritage NetWorks, LLC, maintainer MAINT-AS1828
    205.242.61.0/24
  7. Sep 2, 2004
    Route object
    AS14745 Unitas Global
    RADB route object for AS14745 Unitas Global, maintainer MAINT-AS1828
    205.246.203.0/24
  8. Aug 23, 2006
    Route object
    AS7029 Windstream Communications LLC
    RADB route object for AS7029 Windstream Communications LLC, maintainer MAINT-AS7029
    205.246.203.0/24
  9. Apr 13, 2007
    Route object
    AS12016 Sdnbros LLC
    NTTCOM route object for AS12016 Sdnbros LLC, maintainer MAINT-NTTCOM-RA
    205.243.161.0/24
  10. Apr 13, 2007
    Route object
    AS12016 Sdnbros LLC
    NTTCOM route object for AS12016 Sdnbros LLC, maintainer MAINT-NTTCOM-RA
    205.243.162.0/23
  11. Feb 28, 2008
    Route object
    AS7029 Windstream Communications LLC
    RADB route object for AS7029 Windstream Communications LLC, maintainer MAINT-AS7029
    205.243.88.0/24
  12. Feb 28, 2008
    Route object
    AS7029 Windstream Communications LLC
    RADB route object for AS7029 Windstream Communications LLC, maintainer MAINT-AS7029
    205.243.89.0/24
  13. Feb 28, 2008
    Route object
    AS7029 Windstream Communications LLC
    RADB route object for AS7029 Windstream Communications LLC, maintainer MAINT-AS7029
    205.243.90.0/24
  14. Feb 28, 2008
    Route object
    AS7029 Windstream Communications LLC
    RADB route object for AS7029 Windstream Communications LLC, maintainer MAINT-AS7029
    205.243.91.0/24
  15. Feb 28, 2008
    Route object
    AS7029 Windstream Communications LLC
    RADB route object for AS7029 Windstream Communications LLC, maintainer MAINT-AS7029
    205.243.92.0/24
  16. Feb 28, 2008
    Route object
    AS7029 Windstream Communications LLC
    RADB route object for AS7029 Windstream Communications LLC, maintainer MAINT-AS7029
    205.243.93.0/24
  17. Feb 28, 2008
    Route object
    AS7029 Windstream Communications LLC
    RADB route object for AS7029 Windstream Communications LLC, maintainer MAINT-AS7029
    205.243.94.0/24
  18. Feb 28, 2008
    Route object
    AS7029 Windstream Communications LLC
    RADB route object for AS7029 Windstream Communications LLC, maintainer MAINT-AS7029
    205.243.95.0/24
  19. Nov 24, 2008
    Route object
    AS40157 ADESA Corp
    RADB route object for AS40157 ADESA Corp, maintainer MAINT-AS26554
    205.242.83.0/24
  20. Feb 4, 2009
    Route object
    AS12049 Heritage NetWorks, LLC
    NTTCOM route object for AS12049 Heritage NetWorks, LLC, maintainer MAINT-TEXLINK
    205.242.60.0/24
  21. May 21, 2009
    Route object
    AS7029 Windstream Communications LLC
    RADB route object for AS7029 Windstream Communications LLC, maintainer MAINT-AS7029
    205.243.166.0/24
  22. Jul 30, 2009
    Route object
    AS26381 HSBC Technology & Services (USA) Inc
    RADB route object for AS26381 HSBC Technology & Services (USA) Inc, maintainer MAINT-AS1828
    205.241.15.0/24
  23. Nov 4, 2009
    Route object
    AS17054 Expedient
    RADB route object for AS17054 Expedient, maintainer MAINT-AS17054
    205.246.16.0/23
  24. Jul 13, 2011
    Route object
    AS21547 FirstLight Fiber, Inc.
    RADB route object for AS21547 FirstLight Fiber, Inc., maintainer MAINT-AS1828
    205.243.60.0/24
  25. Feb 28, 2012
    Route object
    AS30385 Perdue Farms Incorporated
    RADB route object for AS30385 Perdue Farms Incorporated, maintainer MAINT-AS7922
    205.245.72.0/24
  26. Feb 25, 2013
    Route object
    AS7029 Windstream Communications LLC
    RADB route object for AS7029 Windstream Communications LLC, maintainer MAINT-AS7029
    205.247.103.0/24
  27. Jan 17, 2014
    Route object
    AS36638 Jackson Rancheria Band of Miwuk Indians
    RADB route object for AS36638 Jackson Rancheria Band of Miwuk Indians, maintainer MAINT-AS54048
    205.242.210.0/24
  28. Mar 3, 2014
    Route object
    AS6175 Cogent Communications, LLC
    RADB route object for AS6175 Cogent Communications, LLC, maintainer MAINT-AS7795
    205.242.253.0/24
  29. Mar 3, 2014
    Route object
    AS14905 CenturyLink Communications, LLC
    RADB route object for AS14905 CenturyLink Communications, LLC, maintainer MAINT-AS7795
    205.244.105.0/24
  30. Sep 15, 2014
    Route object
    AS35951 Comtech Telecommunications Corp.
    RADB route object for AS35951 Comtech Telecommunications Corp., maintainer MAINT-AS7922
    205.244.232.0/24
  31. Sep 15, 2014
    Route object
    AS35951 Comtech Telecommunications Corp.
    RADB route object for AS35951 Comtech Telecommunications Corp., maintainer MAINT-AS7922
    205.244.233.0/24
  32. May 28, 2015
    Route object
    AS11598 Cloudsmart
    RADB route object for AS11598 Cloudsmart, maintainer MAINT-AS5650
    205.247.160.0/20
  33. Feb 10, 2016
    Route object
    AS7849 RingSquared CC
    ALTDB route object for AS7849 RingSquared CC, maintainer MAINT-TOWARDEX
    205.246.0.0/21
  34. Apr 28, 2016
    Route object
    AS6062 NETPLEX
    RADB route object for AS6062 NETPLEX, maintainer MAINT-AS5650
    205.247.160.0/20
  35. Jul 24, 2016
    Route object
    AS3605 Guam Cablevision, LLC.
    RADB route object for AS3605 Guam Cablevision, LLC., maintainer MAINT-AS3605
    205.241.8.0/24
  36. Oct 17, 2018
    Route object
    AS17054 Expedient
    RADB route object for AS17054 Expedient, maintainer MAINT-RR
    205.240.70.0/24
  37. Oct 17, 2018
    Route object
    AS10796 Charter Communications Inc
    RADB route object for AS10796 Charter Communications Inc, maintainer MAINT-RR
    205.243.79.0/24
  38. Oct 17, 2018
    Route object
    AS12262 Charter Communications Inc
    RADB route object for AS12262 Charter Communications Inc, maintainer MAINT-RR
    205.243.79.0/24
  39. Oct 17, 2018
    Route object
    AS17054 Expedient
    RADB route object for AS17054 Expedient, maintainer MAINT-RR
    205.244.128.0/20
  40. Oct 17, 2018
    Route object
    AS27209 JAB Wireless, INC.
    RADB route object for AS27209 JAB Wireless, INC., maintainer MAINT-RR
    205.247.111.0/24
  41. Oct 17, 2018
    Route object
    AS27209 JAB Wireless, INC.
    RADB route object for AS27209 JAB Wireless, INC., maintainer MAINT-RR
    205.247.118.0/24
  42. Apr 14, 2019
    Route object
    AS46887 Crown Castle Fiber LLC
    RADB route object for AS46887 Crown Castle Fiber LLC, maintainer MAINT-AS27506
    205.247.160.0/20
  43. Jun 8, 2020
    Route object
    AS13329 Kansas Fiber Network, LLC
    RADB route object for AS13329 Kansas Fiber Network, LLC, maintainer MAINT-KFN
    205.245.110.0/23
  44. Nov 20, 2020
    Route object
    AS7381 BroadbandONE, LLC
    RADB route object for AS7381 BroadbandONE, LLC, maintainer MAINT-AS1828
    205.247.219.0/24
  45. May 11, 2021
    Route object
    AS1239 Cogent Communications, LLC
    ARIN route object for AS1239 Cogent Communications, LLC, maintainer MNT-COGC
  46. Aug 19, 2021
    Route object
    AS36050 Fifth Third Bank
    ALTDB route object for AS36050 Fifth Third Bank, maintainer MAINT-AS6181
    205.243.79.0/24
  47. Aug 23, 2021
    Route object
    AS36050 Fifth Third Bank
    ARIN route object for AS36050 Fifth Third Bank, maintainer MNT-COGC
    205.243.79.0/24
  48. Jan 6, 2022
    Route object
    AS17046 Action Communications, Inc.
    RADB route object for AS17046 Action Communications, Inc., maintainer MAINT-AS15108
    205.243.252.0/22
  49. Feb 16, 2022
    Route object
    AS22925 Allied Telecom Group, LLC
    RADB route object for AS22925 Allied Telecom Group, LLC, maintainer MAINT-AS22925
    205.241.44.0/24
  50. Feb 16, 2022
    Route object
    AS22925 Allied Telecom Group, LLC
    RADB route object for AS22925 Allied Telecom Group, LLC, maintainer MAINT-AS22925
    205.241.45.0/24
  51. Feb 16, 2022
    Route object
    AS22925 Allied Telecom Group, LLC
    RADB route object for AS22925 Allied Telecom Group, LLC, maintainer MAINT-AS22925
    205.241.46.0/24
  52. May 13, 2022
    Route object
    AS53739 International Science and Technology, Inc.
    RADB route object for AS53739 International Science and Technology, Inc., maintainer MAINT-AS22773
    205.242.20.0/23
  53. Apr 14, 2023
    Route object
    AS36050 Fifth Third Bank
    RADB route object for AS36050 Fifth Third Bank, maintainer MAINT-AS32787
    205.243.79.0/24
  54. Jun 6, 2023
    Route object
    AS174 Cogent Communications, LLC
    ARIN route object for AS174 Cogent Communications, LLC, maintainer MNT-COGC
  55. Aug 7, 2023
    Route object
    AS206371
    ALTDB route object for AS206371, maintainer MAINT-AS48828
    205.243.235.0/24
  56. Sep 20, 2023
    Route object
    AS50286
    ALTDB route object for AS50286, maintainer MAINT-AS48828
    205.243.235.0/24
  57. Apr 3, 2025
    Route object
    AS328867 Corebach Backbone SARL
    ALTDB route object for AS328867 Corebach Backbone SARL, maintainer MAINT-GULER
    205.243.61.0/24
  58. Apr 18, 2025
    Route object
    AS10510 River City Internet Group LLC
    RADB route object for AS10510 River City Internet Group LLC, maintainer MAINT-AS15164
    205.242.176.0/20
  59. Aug 26, 2025
    Route object
    Rackdog
    RADB route object for AS6079 RCN, maintainer MAINT-AS398465
    205.241.128.0/20
  60. Aug 26, 2025
    Route object
    Rackdog
    RADB route object for AS6079 RCN, maintainer MAINT-AS398465
    205.241.144.0/20
  61. Aug 26, 2025
    Route object
    Rackdog
    RADB route object for AS6079 RCN, maintainer MAINT-AS398465
    205.241.160.0/20
  62. Aug 26, 2025
    Route object
    Rackdog
    RADB route object for AS6079 RCN, maintainer MAINT-AS398465
    205.241.176.0/20
  63. Aug 26, 2025
    Route object
    Rackdog
    RADB route object for AS6079 RCN, maintainer MAINT-AS398465
    205.241.192.0/20
  64. Aug 26, 2025
    Route object
    Rackdog
    RADB route object for AS6079 RCN, maintainer MAINT-AS398465
    205.241.208.0/20
  65. Aug 26, 2025
    Route object
    Rackdog
    RADB route object for AS6079 RCN, maintainer MAINT-AS398465
    205.241.224.0/20
  66. Oct 10, 2025
    Route object
    Rackdog
    RADB route object for AS1299 Arelion Sweden AB, maintainer MAINT-AS398465
    205.241.128.0/19
  67. Oct 10, 2025
    Route object
    Rackdog
    RADB route object for AS1299 Arelion Sweden AB, maintainer MAINT-AS398465
    205.241.160.0/19
  68. Oct 10, 2025
    Route object
    Rackdog
    RADB route object for AS1299 Arelion Sweden AB, maintainer MAINT-AS398465
    205.241.192.0/19
  69. Oct 10, 2025
    Route object
    Rackdog
    RADB route object for AS1299 Arelion Sweden AB, maintainer MAINT-AS398465
    205.241.224.0/19
  70. Apr 10, 2026
    Route object
    AS396411 MicroPact Global, Inc
    ARIN route object for AS396411 MicroPact Global, Inc, maintainer MNT-MICRO-71
    205.241.44.0/24
  71. Jun 26, 2026
    Route object
    AS6428 CDM
    RADB route object for AS6428 CDM, maintainer MAINT-CHTR-WD
    205.242.176.0/20
  72. Sep 18, 2026– Nov 2, 2026
    Announced
    AS174 Cogent Communications, LLC
    Internet provider
  73. today
    Used
    Bright Data
    Proxy seller

Announcements

Nesting

More-specifics by size

Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
More specific

Announcements inside

Arrived
PrefixOriginTypeOperatorLeased fromProxy exitsHolderRPKI
205.240.0.0/20
since Jan 2014
AS3364BusinessCogent Communications, LLC
via Computer Systems Design Company
205.240.34.0/23
since Oct 2023
AS19901ResidentialCogent Communications, LLC
via Ltd Sprint FLA ANS ISP
205.240.36.0/22
since Nov 2019
AS209ResidentialCogent Communications, LLC
via Ltd Sprint FLA ANS ISP
205.240.42.0/23
since May 2005
AS6222ResidentialCogent Communications, LLC
via Ltd Sprint FLA ANS ISP
205.240.128.0/20
since May 2005
AS8025UnknownCogent Communications, LLC
via Chickasaw Telephone
205.240.192.0/20
since Aug 2025
AS6079ISP proxyIP broker RackdogCogent Communications, LLC
205.240.208.0/20
since Aug 2025
AS6079ISP proxyIP broker RackdogCogent Communications, LLC
205.240.224.0/20
since Aug 2025
AS6079ISP proxyIP broker RackdogCogent Communications, LLC
205.240.240.0/20
since Aug 2025
AS6079ISP proxyIP broker RackdogCogent Communications, LLC
205.241.40.0/24
since Dec 2021
AS23005HostingCogent Communications, LLC
205.241.51.0/24
since Mar 2024
AS174BusinessCogent Communications, LLC
205.241.64.0/20
since Aug 2025
AS6079ISP proxyIP broker RackdogCogent Communications, LLC
205.241.80.0/20
since Aug 2025
AS6079ISP proxyIP broker RackdogCogent Communications, LLC
205.241.96.0/20
since Aug 2025
AS6079ISP proxyIP broker RackdogCogent Communications, LLC
205.241.112.0/20
since Aug 2025
AS6079ISP proxyIP broker RackdogCogent Communications, LLC
205.241.240.0/20
since Dec 2025
AS4637ISP proxyProxy providersoperated by Bright DataIP broker RackdogCogent Communications, LLC
205.242.92.0/23
since Jan 2026
AS6428HostingCogent Communications, LLC
via Primary Network
205.242.92.0/24
since Feb 2024
AS6428HostingCogent Communications, LLC
via Primary Network
205.242.93.0/24
since Feb 2024
AS6428HostingCogent Communications, LLC
via Primary Network
205.242.176.0/24
since Feb 2024
AS6428HostingCogent Communications, LLC
via Primary Network
205.242.177.0/24
since Feb 2024
AS6428HostingCogent Communications, LLC
via Primary Network
205.242.178.0/24
since Feb 2024
AS6428HostingCogent Communications, LLC
via Primary Network
205.242.179.0/24
since Feb 2024
AS6428HostingCogent Communications, LLC
via Primary Network
205.242.180.0/24
since Feb 2024
AS6428HostingCogent Communications, LLC
via Primary Network
205.242.181.0/24
since Feb 2024
AS6428HostingCogent Communications, LLC
via Primary Network
205.242.182.0/24
since Feb 2024
AS6428HostingCogent Communications, LLC
via Primary Network
205.242.183.0/24
since Feb 2024
AS6428HostingCogent Communications, LLC
via Primary Network
205.242.184.0/21
since Feb 2024
AS6428HostingCogent Communications, LLC
via Primary Network
205.242.184.0/24
since Feb 2024
AS6428HostingCogent Communications, LLC
via Primary Network
205.242.185.0/24
since Feb 2024
AS6428HostingCogent Communications, LLC
via Primary Network
205.242.186.0/24
since Feb 2024
AS6428HostingCogent Communications, LLC
via Primary Network
205.242.187.0/24
since Feb 2024
AS6428HostingCogent Communications, LLC
via Primary Network
205.242.188.0/24
since Feb 2024
AS6428HostingCogent Communications, LLC
via Primary Network
205.242.189.0/24
since Feb 2024
AS6428HostingCogent Communications, LLC
via Primary Network
205.242.190.0/24
since Feb 2024
AS6428HostingCogent Communications, LLC
via Primary Network
205.242.191.0/24
since Feb 2024
AS6428HostingCogent Communications, LLC
via Primary Network
205.242.230.0/23
since Jun 2008
AS13676ResidentialCogent Communications, LLC
205.242.230.0/24
since Dec 2025
AS13676ResidentialCogent Communications, LLC
205.243.64.0/21
since May 2007
AS40508Business1Cogent Communications, LLC
205.243.71.0/24
since Aug 2023
AS40508BusinessCogent Communications, LLC
205.243.72.0/23
since May 2013
AS11924Residential3Cogent Communications, LLC
205.243.112.0/23
since Nov 2014
AS17301Business1Cogent Communications, LLC
via Hiawatha Broadband Communications, Inc
205.243.114.0/23
since Sep 2005
AS14828Residential1Cogent Communications, LLC
via Hiawatha Broadband Communications, Inc
205.243.116.0/22
since Sep 2012
AS14828Residential5
1 always on
Cogent Communications, LLC
via Hiawatha Broadband Communications, Inc
205.243.120.0/21
since Jan 2025
AS14828Residential16
1 always on
Cogent Communications, LLC
via Hiawatha Broadband Communications, Inc
205.244.110.0/24
since Aug 2026
AS5778ResidentialCogent Communications, LLC
via Embarq Corporation
205.244.148.0/22
since Jun 2007
AS14813ResidentialCogent Communications, LLC
205.244.148.0/23
since Nov 2016
AS14813ResidentialCogent Communications, LLC
205.244.148.0/24
since Mar 2025
AS14813ResidentialCogent Communications, LLC
205.244.149.0/24
since Mar 2025
AS14813ResidentialCogent Communications, LLC
205.244.150.0/23
since Nov 2016
AS14813ResidentialCogent Communications, LLC
205.244.150.0/24
since Mar 2025
AS14813ResidentialCogent Communications, LLC
205.244.151.0/24
since Mar 2025
AS14813ResidentialCogent Communications, LLC
205.244.194.0/23
since Nov 2019
AS209ResidentialCogent Communications, LLC
205.245.0.0/18
since May 2005
AS2379ResidentialCogent Communications, LLC
via Sprint-United Telephone of Florida
205.245.2.0/24
since Oct 2015
AS209ResidentialCogent Communications, LLC
via Sprint DSL Network
205.245.41.0/24
since Apr 2015
AS209ResidentialCogent Communications, LLC
via Sprint-United Telephone of Florida
205.245.44.0/24
since May 2005
AS2379ResidentialCogent Communications, LLC
via Sprint-United Telephone of Florida
205.245.84.0/24
since Dec 2022
AS400807ResidentialCogent Communications, LLC
205.245.85.0/24
since Dec 2022
AS400807ResidentialCogent Communications, LLC
205.245.89.0/24
since Sep 2016
AS18571BusinessCogent Communications, LLC
205.246.18.0/24
since May 2005
AS19643BusinessCogent Communications, LLC
205.246.28.0/24
since Feb 2009
AS46567BusinessCogent Communications, LLC
205.246.64.0/20
since Aug 2025
AS6079ISP proxyIP broker RackdogCogent Communications, LLC
205.246.80.0/20
since Aug 2025
AS6079ISP proxyIP broker RackdogCogent Communications, LLC
205.246.96.0/20
since Aug 2025
AS6079ISP proxyIP broker RackdogCogent Communications, LLC
205.246.112.0/20
since Aug 2025
AS6079ISP proxyIP broker RackdogCogent Communications, LLC
205.246.165.0/24
since Apr 2024
AS174UnknownCogent Communications, LLC
205.247.0.0/20
since Nov 2019
AS3257ISP proxyCogent Communications, LLC
via I-2000, Inc.
205.247.24.0/22
since Sep 2005
AS11140BusinessCogent Communications, LLC
205.247.26.0/24
since Oct 2025
AS11140BusinessCogent Communications, LLC
205.247.31.0/24
since May 2005
AS15065Residential3
1 always on
Cogent Communications, LLC
205.247.204.0/24
since Aug 2023
AS26077ResidentialCogent Communications, LLC
205.247.247.0/24
since Nov 2005
AS6222ResidentialCogent Communications, LLC
205.247.251.0/24
since Oct 2008
AS6222ResidentialCogent Communications, LLC

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
205.240.0.0/13524,288COGENT-205-240-0Cogent Communications, LLC (COGC) · USDirect AllocationApr 24, 1995[email protected]
└ 205.240.0.0/204,096SPRINT-CDF00FComputer Systems Design Company (CSD) · USReallocatedApr 25, 1995[email protected]
└ 205.240.32.0/204,096FON-34550661121904Ltd Sprint FLA ANS ISP (LTSF) · USReallocatedMar 8, 2002—
└ 205.240.128.0/204,096SPRINTLINKChickasaw Telephone (CHCK) · USReallocatedOct 29, 2002[email protected]
└ 205.240.137.0/24256CHCK-205-240-137-0-TO-205-240-137-255unknown———
└ 205.240.138.0/24256CHCK-205-240-138-0-TO-205-240-138-255unknown———
└ 205.240.140.0/2732CHCK-205-240-140-0-TO-205-240-140-31unknown———
└ 205.240.140.32/2732CHCK-205-240-140-32-TO-205-240-140-63unknown———
└ 205.240.140.64/2732CHCK-205-240-140-64-TO-205-240-140-95unknown———
└ 205.240.143.0/298CHCK-205-240-143-0-TO-205-240-143-7unknown———
└ 205.240.156.96/2732SPRINTLINKunknown———
└ 205.240.192.0/1816,384RACKDOG-CGNT-NET-38RCN (C11605233) · USReassignedMay 27, 2026[email protected]
via COGENT-205-240-0
└ 205.241.28.16/2816SPRINTLINKunknown———
└ 205.241.40.0/24256SPRINTLINKOmnitracs, Inc. (OMNIT-16) · USReassignedJun 27, 2016[email protected]
└ 205.241.41.8/298SPRINTLINKunknown———
└ 205.241.44.0/24256SPRINTLINKunknown———
└ 205.241.48.80/2816SPRINTLINKunknown———
└ 205.241.48.248/298SPRINTLINKunknown———
└ 205.241.49.128/25128SPRINTLINKunknown———
└ 205.241.50.8/298SPRINTLINKunknown———
└ 205.241.50.16/298SPRINTLINKunknown———
└ 205.241.50.32/2816SPRINTLINKunknown———
└ 205.241.50.48/298SPRINTLINKunknown———
└ 205.241.51.0/24256SPRINTLINKNational Academy of Sciences (NAS-13) · USReassignedNov 8, 2017[email protected]
└ 205.241.64.0/1816,384RACKDOG-CGNT-NET-40RCN (C11605235) · USReassignedMay 27, 2026[email protected]
via COGENT-205-240-0
└ 205.241.128.0/1732,768RACKDOG-CGNT-NET-39RCN (C11605234) · USReassignedMay 27, 2026[email protected]
via COGENT-205-240-0
└ 205.242.75.0/298SPRINTLINKunknown———
└ 205.242.75.8/298SPRINTLINKunknown———
└ 205.242.75.64/2816SPRINTLINKunknown———
└ 205.242.92.0/23512SPRINT-CDF25C-1Primary Network (PRME) · USReallocatedMay 25, 1999[email protected]
└ 205.242.92.64/2816PRIMARY-IDI-1unknown———
└ 205.242.114.128/2664SPRINTLINKunknown———
└ 205.242.114.192/2732SPRINTLINKunknown———
└ 205.242.176.0/204,096SPRINT-CDF2B0-1Primary Network (PRME) · USReallocatedMay 25, 1999[email protected]
└ 205.242.177.8/298PRIMARY-KFNS-1unknown———
└ 205.242.177.32/2732PRIMARY-TECHNICOM-1unknown———
└ 205.242.177.64/2732PRIMARY-DANISCOOPER-1unknown———
└ 205.242.177.128/2732PRIMARY-SOLUTECH-1unknown———
└ 205.242.177.176/298PRIMARY-SARAFELIX-1unknown———
└ 205.242.177.192/298PRIMARY-KEYSTONE-2unknown———
└ 205.242.177.224/2816PRIMARY-POTTERSIG-1unknown———
└ 205.242.178.16/2816PRIMARY-GALAXY-2unknown———
└ 205.242.178.32/2732PRIMARY-ZOLTEK-1unknown———
└ 205.242.178.64/2732PRIMARY-JESUITS-1unknown———
└ 205.242.180.56/298PRIMARY-SAYERS-2unknown———
└ 205.242.180.96/298PRIMARY-WILLERT-1unknown———
└ 205.242.180.104/298PRIMARY-CFI-1unknown———
└ 205.242.182.8/298PRIMARY-Y98KEZK-1unknown———
└ 205.242.182.96/298PRIMARY-CROWNPACK-1unknown———
└ 205.242.182.112/2816PRIMARY-SKH-1unknown———
└ 205.242.182.128/2732PRIMARY-BEARCLAW-1unknown———
└ 205.242.183.16/298PRIMARY-45320-1unknown———
└ 205.242.183.48/2816PRIMARY-QUINN-1unknown———
└ 205.242.183.96/2816PRIMARY-CASSINFO-1unknown———
└ 205.242.183.112/2816PRIMARY-CTYKRKWD-1unknown———
└ 205.242.183.144/2816PRIMARY-TELCON-1unknown———
└ 205.242.184.16/2816PRIMARY-INTERCHANGE-1unknown———
└ 205.242.184.32/2732PRIMARY-KETC9-2unknown———
└ 205.242.184.64/2732PRIMARY-MBHALL-2unknown———
└ 205.242.184.128/2664PRIMARY-GRIMCOINC-1unknown———
└ 205.242.184.240/298PRIMARY-MOBAP-1unknown———
└ 205.242.188.8/298PRIMARY-LTECH-2unknown———
└ 205.242.188.32/2732PRIMARY-NGI-1unknown———
└ 205.242.188.96/298PRIMARY-INDEECO-1unknown———
└ 205.242.189.0/24256MMS-PRIMARY-1Midwest Medical Supply (MMS-86) · USReassignedApr 23, 2003—
└ 205.242.190.0/24256PRIMARY-NBA-1National Benevolent Association (NBA-6) · USReassignedJun 9, 1999—
└ 205.242.218.48/298SPRINTLINKunknown———
└ 205.242.218.96/298SPRINTLINKunknown———
└ 205.242.219.96/2732SPRINTLINKunknown———
└ 205.242.228.0/23512SPRINTLINKunknown———
└ 205.242.242.136/298SPRINTLINKunknown———
└ 205.242.242.144/2816SPRINTLINKunknown———
└ 205.242.248.48/298SPRINTLINKunknown———
└ 205.242.248.88/298SPRINTLINKunknown———
└ 205.242.248.120/298SPRINTLINKunknown———
└ 205.243.20.224/2732SPRINTLINKunknown———
└ 205.243.21.192/2664SPRINTLINKunknown———
└ 205.243.24.64/2732SPRINTLINKunknown———
└ 205.243.30.0/23512SPRINTLINKunknown———
└ 205.243.56.64/298SPRINTLINKunknown———
└ 205.243.56.80/298SPRINTLINKunknown———
└ 205.243.56.88/298SPRINTLINKunknown———
└ 205.243.72.0/23512SPRINT-CDF348Bridgeband Communications (BRIDGE-19) · USReassignedSep 14, 1999—
└ 205.243.75.0/24256SPRINTLINKunknown———
└ 205.243.79.0/24256SPRINTLINKunknown———
└ 205.243.102.0/2664SPRINTLINKunknown———
└ 205.243.102.128/25128SPRINTLINKunknown———
└ 205.243.112.0/204,096SPRINTLINKHiawatha Broadband Communications, Inc (HBC-73) · USReallocatedJun 29, 2023[email protected]
└ 205.243.112.0/23512FAST-205-243-112-0-23Fastenal Company (FASTEN-8) · USReassignedSep 12, 2023[email protected]
└ 205.243.128.0/198,192SPRINTLINKunknown———
└ 205.244.40.0/298SPRINTLINKunknown———
└ 205.244.40.32/2816SPRINTLINKunknown———
└ 205.244.40.112/2816SPRINTLINKunknown———
└ 205.244.41.48/2816FON-345533060898960unknown———
└ 205.244.41.64/2732SPRINTLINKunknown———
└ 205.244.53.0/2732SPRINTLINKunknown———
└ 205.244.96.0/204,096SPRINTLINKEmbarq Corporation (EMBAR) · USReallocatedMay 14, 2010—
└ 205.244.100.0/24256SKYBE-NETBLK-011unknown———
└ 205.244.101.128/2664205-244-101-128-205-244-101-191unknown———
└ 205.244.103.0/24256SKYBE-NETBLK-011unknown———
└ 205.244.112.0/204,096SPRINT-CDF47Funknown———
└ 205.244.115.0/24256CUMBERLAND2unknown———
└ 205.244.116.0/24256SLTD-CDF47400-001109unknown———
└ 205.244.117.0/24256CENTURA-DOMunknown———
└ 205.244.118.0/2664SLTD-CDF47600-001130unknown———
└ 205.244.118.64/2664SLTD-CDF47640-010504unknown———
└ 205.244.118.144/2816SLTD-CDF47690-001219unknown———
└ 205.244.118.160/2816SLTD-CDF476A0-010308unknown———
└ 205.244.118.176/2816SLTD-CDF476B0-010501unknown———
└ 205.244.118.192/298SLTD-CDF476C0-001127unknown———
└ 205.244.118.200/298SLTD-BHM-REG-LIBunknown———
└ 205.244.118.208/2816SLTD-CDF476D0-010524unknown———
└ 205.244.118.224/2732SLTD-CDF476E0-010605unknown———
└ 205.244.119.0/24256SPRINTLTD-CDF47700unknown———
└ 205.244.120.0/24256SLTD-CDF47800-010112unknown———
└ 205.244.121.0/24256NCISPunknown———
└ 205.244.122.0/24256205-244-122LPMMICunknown———
└ 205.244.123.0/24256ESISNET-NET1unknown———
└ 205.244.126.48/2816JK12NCUS-205-244-126-48unknown———
└ 205.244.126.64/2664HOBBS-IMPLEMENT-BLK1unknown———
└ 205.244.126.128/2664WHITLEYJENKINRID-BLK1unknown———
└ 205.244.126.192/2664HIGHSTREET-BANK-BLK1unknown———
└ 205.244.127.0/24256SPRINTLTD-CDF47F00-01unknown———
└ 205.244.158.56/298SPRINTLINKunknown———
└ 205.244.158.112/2816SPRINTLINKunknown———
└ 205.244.158.184/298SPRINTLINKunknown———
└ 205.244.194.0/24256DSL-NET003-LVunknown———
└ 205.244.195.0/24256SL-CTL-EMBQ-205-244-195-0-1unknown———
└ 205.244.200.0/212,048SPRINT-CDF4CFunknown———
└ 205.244.200.0 - 205.244.202.255768205-244-200NBOC-EASTunknown———
└ 205.244.204.0/221,024205-244-204UOFEunknown———
└ 205.244.227.128/298SPRINTLINKunknown———
└ 205.244.227.136/298SPRINTLINKunknown———
└ 205.244.237.0/2732SPRINTLINKunknown———
└ 205.244.237.32/2816SPRINTLINKunknown———
└ 205.244.237.56/298SPRINTLINKunknown———
└ 205.244.237.176/2816SPRINTLINKunknown———
└ 205.245.0.0/1816,384SPRINT-CDF500-7Sprint-United Telephone of Florida (UTOF) · USReallocatedApr 19, 1999—
└ 205.245.0.0/24256205-245-0SSRESORTSunknown———
└ 205.245.2.0/24256DSL-NET007-FLSprint DSL Network (SDSL) · USReallocatedJan 8, 2002—
└ 205.245.3.0/24256205-245-3WATERBCunknown———
└ 205.245.6.0/23512205CCCYBERSTunknown———
└ 205.245.8.0/24256205-245-8ASGunknown———
└ 205.245.9.0/24256205CCOSUSAunknown———
└ 205.245.10.0/24256205-245-10FLREALTORunknown———
└ 205.245.11.0/24256205-245-11IFRAMENETunknown———
└ 205.245.14.32/2732205CCDAPunknown———
└ 205.245.14.64/2664205CCFOSunknown———
└ 205.245.14.128/2732205CCPSRunknown———
└ 205.245.17.0/24256205-245-17HTNETunknown———
└ 205.245.19.0/24256205CCWEISCOunknown———
└ 205.245.20.0/24256205-245-20CHSunknown———
└ 205.245.21.0/24256205-245-21GULFACCunknown———
└ 205.245.22.0/24256205-245-22FLREATORunknown———
└ 205.245.25.0 - 205.245.26.255512205CCNSSunknown———
└ 205.245.27.0/2664205CC800PARTYunknown———
└ 205.245.27.64/2664205-245-27-64FTSINTLunknown———
└ 205.245.28.0/24256205-245-28NCHOSPunknown———
└ 205.245.29.0/24256205-245-29CCCCunknown———
└ 205.245.30.0/24256205-245-30SSRESORTSunknown———
└ 205.245.31.0 - 205.245.38.2552,048IAG-204-245-31-38unknown———
└ 205.245.31.32/2732HALE-CDF51F20unknown———
└ 205.245.31.64/2732PEGASUS-CDF51F40unknown———
└ 205.245.34.0/24256SEO-CDF52200unknown———
└ 205.245.35.0/24256SEO-CDF52300unknown———
└ 205.245.37.0/24256MJKSW-CDF52500unknown———
└ 205.245.38.0/24256DUDA-CDF52600unknown———
└ 205.245.39.0/24256IAG-39-0Aunknown———
└ 205.245.40.0/24256SPRINT-CDF500-7unknown———
└ 205.245.41.0/24256205IRDG1IRDG, Inc. (IRDGIN) · USReassignedNov 16, 1999—
└ 205.245.42.0/24256GOCO205-245-42unknown———
└ 205.245.44.0/24256205-245-44VERTVertiquest / Leadmaster (VERTIQ) · USReassignedJun 28, 2002[email protected]
└ 205.245.45.0/24256205CCTNTONLINEunknown———
└ 205.245.47.0 - 205.245.48.255512205-245-48NCHOSPunknown———
└ 205.245.50.0/24256205-245-50HALLIDAYunknown———
└ 205.245.51.0/24256205-245-51K2unknown———
└ 205.245.52.128/2664205-245-52AMERIVESTunknown———
└ 205.245.53.0 - 205.245.54.255512204ZOOMPH1unknown———
└ 205.245.55.0/24256205CFLC1unknown———
└ 205.245.56.0/24256MTC1unknown———
└ 205.245.59.0/24256205-245-59OCPRAunknown———
└ 205.245.60.0/24256SPRINT-D002A8-6unknown———
└ 205.245.61.0/24256205-245-21CRYWINDunknown———
└ 205.245.62.0/24256205-245-62ARROWunknown———
└ 205.245.62.128/2732HENDRY-RMC-NET-1unknown———
└ 205.245.62.160/2732FIRSTBANK-IND-NET-1unknown———
└ 205.245.62.192/2732STUART-PROP-NET-1unknown———
└ 205.245.63.0/2732205SISIunknown———
└ 205.245.63.32/2732205CLTF1unknown———
└ 205.245.63.96/2732205CCSBHCunknown———
└ 205.245.63.128/2732205CCTGRunknown———
└ 205.245.63.192/2664205CCGESunknown———
└ 205.245.66.0/2732SPRINTLINKunknown———
└ 205.245.72.0/24256SPRINTLINKunknown———
└ 205.245.74.16/2816SPRINTLINKunknown———
└ 205.245.79.0/298SPRINTLINKunknown———
└ 205.245.79.16/298SPRINTLINKunknown———
└ 205.245.79.32/2732SPRINTLINKunknown———
└ 205.245.79.64/2732SPRINTLINKunknown———
└ 205.245.79.104/298SPRINTLINKunknown———
└ 205.245.79.112/298SPRINTLINKunknown———
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A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Composition

The types across the prefix's announced space, by addresses.

Announced space

Address share

Announced space

Types across the prefix

524,288 addresses
TypeAddressesShareRanges
Internet provider390,64075%94
ISP proxyanonymizer86,01616%18
Residential27,2965.2%41
Business11,6322.2%112
Hosting4,8640.93%19
Unknown3,8400.73%4

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Origin network

AS174

US
Name
Cogent Communications, LLC
Type
Internet provider
Registered
May 16, 1996
Domain
cogentco.com
Website
www.cogentco.com/
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed
VPN servers
1,658