Data as of Nov 7, 2026

65.172.0.0/15

8,192 anonymizer addresses · 6.3% · ISP proxy

Cogent Communications, LLC

Announcement
this exact prefix
No RPKI
Announced by
Type
Internet provider
84% of it

Residential-proxy exits

Proxy exits
61
0.05% of its addresses · listed by providers
Always-on exits
10
16% of its exits
Spread
8 of 512
/24s with at least one exit
Providers
64
selling exits here

/24s with the most always-on exits

Proxy providers listing exits

  • 711Proxy
  • 9Proxy
  • Ake.net
  • AnyIP
  • B2Proxy
  • BirdProxies
  • BottingTools
  • BuyingProxy
  • ByteProxies
  • Byteful
  • CliProxy
  • ColaProxy
  • DataImpulse
  • Datarama
  • EZProxies
  • Elusive
  • EnigmaProxy
  • Evomi
  • FastProxy
  • FlashProxy
  • FlexyProxies
  • FloppyData
  • GSocks
  • Geonix
  • Geonode
  • GhostConnect
  • GloryCloud
  • GonzoProxy
  • IPFly
  • IPPeak
  • IPRoyal
  • Infatica
  • InfiniteProxies
  • KocerRoxy
  • LemonBright
  • LemonLabs
  • LudaxProxy
  • MangoProxy
  • NodeMaven
  • NodeProxy
  • NovProxy
  • NovaProxy
  • Novada
  • Oxylabs
  • PrivateByte
  • Proxiware
  • Proxmint
  • Proxy-Seller
  • Proxy4U
  • ProxyEmpire
  • ProxyGeo
  • ProxyRack
  • Proxyma
  • PuraRoute
  • RainProxy
  • RapidProxy
  • ResiProxies
  • RoamProxy
  • Shifter
  • Thordata
  • ThunderProxy
  • VantageProxies
  • VitalExclusive
  • WealthProxies
IPv4 market

Path

1 · Holder
record created Sep 19, 2000
2 · Leased from
3 · Announced by
AS174 Cogent Communications, LLC
since May 2024 · 2.5 yr ago
4 · Use
Internet provider
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 65.172.0.0/15/24s
Rackdog
8,1926.3%
32
Leased from

Owners leasing their own space

NameIn 65.172.0.0/15/24s
Cogent Communications, LLC
8,1926.3%
32

Lineage

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

65.172.0.0/15

From the registry to its use

  1. Sep 19, 2000
    Registry record
    Cogent Communications, LLC
    Direct Allocation
    65.160.0.0 - 65.173.255.255
  2. Dec 30, 2003
    Route object
    AS7877 Online Magic
    RADB route object for AS7877 Online Magic, maintainer MAINT-AS174
    65.172.168.0/21
  3. Dec 30, 2003
    Route object
    AS26525 NYC School Construction Authority
    RADB route object for AS26525 NYC School Construction Authority, maintainer MAINT-AS174
    65.172.198.0/24
  4. May 9, 2005– May 16, 2024
    Announced
    AS1239 Cogent Communications, LLC
  5. Jul 7, 2005
    Route object
    AS7029 Windstream Communications LLC
    RADB route object for AS7029 Windstream Communications LLC, maintainer MAINT-AS7029
    65.172.151.0/24
  6. Jun 19, 2006
    Route object
    AS32500 Airbus DS Communications Inc
    NTTCOM route object for AS32500 Airbus DS Communications Inc, maintainer MAINT-METROP-63
    65.172.220.0/24
  7. Nov 24, 2008
    Route object
    AS40157 ADESA Corp
    RADB route object for AS40157 ADESA Corp, maintainer MAINT-AS26554
    65.172.252.0/22
  8. Feb 3, 2009
    Route object
    AS20456 JAB Wireless, INC.
    RADB route object for AS20456 JAB Wireless, INC., maintainer MAINT-AS26554
    65.173.112.0/22
  9. Feb 3, 2009
    Route object
    AS20456 JAB Wireless, INC.
    RADB route object for AS20456 JAB Wireless, INC., maintainer MAINT-AS26554
    65.173.116.0/23
  10. Mar 9, 2009
    Route object
    AS13609 DH Dental Business Services, LLC
    NTTCOM route object for AS13609 DH Dental Business Services, LLC, maintainer MAINT-CTC
    65.173.194.0/24
  11. Jul 30, 2009
    Route object
    AS27757 Corporacion Nacional de Telecomunicaciones - CNT EP
    RADB route object for AS27757 Corporacion Nacional de Telecomunicaciones - CNT EP, maintainer MAINT-AS18747
    65.172.180.0/24
  12. Sep 22, 2009
    Route object
    AS7029 Windstream Communications LLC
    RADB route object for AS7029 Windstream Communications LLC, maintainer MAINT-AS7029
    65.172.44.0/24
  13. Sep 22, 2009
    Route object
    AS7029 Windstream Communications LLC
    RADB route object for AS7029 Windstream Communications LLC, maintainer MAINT-AS7029
    65.172.45.0/24
  14. Feb 17, 2010
    Route object
    AS19169 Telconet S.A
    RADB route object for AS19169 Telconet S.A, maintainer MAINT-AS19169
    65.172.180.0/24
  15. May 18, 2011
    Route object
    AS12260 Kramer, Ceilley and Associates
    RADB route object for AS12260 Kramer, Ceilley and Associates, maintainer MAINT-AS1828
    65.173.194.0/24
  16. Aug 28, 2012
    Route object
    AS27966 Telecorp
    RADB route object for AS27966 Telecorp, maintainer MAINT-AS23520
    65.172.48.0/22
  17. Aug 29, 2012
    Route object
    AS28513 UNINET
    RADB route object for AS28513 UNINET, maintainer MAINT-AS28513
    65.172.48.0/22
  18. Feb 25, 2013
    Route object
    AS7029 Windstream Communications LLC
    RADB route object for AS7029 Windstream Communications LLC, maintainer MAINT-AS7029
    65.172.100.0/23
  19. Feb 25, 2013
    Route object
    AS7029 Windstream Communications LLC
    RADB route object for AS7029 Windstream Communications LLC, maintainer MAINT-AS7029
    65.172.148.0/24
  20. Apr 30, 2013
    Route object
    AS46687 BCI Mississippi Broadband,LLC
    RADB route object for AS46687 BCI Mississippi Broadband,LLC, maintainer MAINT-AS1828
    65.172.28.0/23
  21. Apr 30, 2013
    Route object
    AS46687 BCI Mississippi Broadband,LLC
    RADB route object for AS46687 BCI Mississippi Broadband,LLC, maintainer MAINT-AS1828
    65.172.28.0/24
  22. Apr 30, 2013
    Route object
    AS46687 BCI Mississippi Broadband,LLC
    RADB route object for AS46687 BCI Mississippi Broadband,LLC, maintainer MAINT-AS1828
    65.172.29.0/24
  23. Apr 30, 2013
    Route object
    AS46687 BCI Mississippi Broadband,LLC
    RADB route object for AS46687 BCI Mississippi Broadband,LLC, maintainer MAINT-AS1828
    65.172.30.0/24
  24. Mar 31, 2015
    Route object
    AS36517 UGI Utilities Inc.
    RADB route object for AS36517 UGI Utilities Inc., maintainer MAINT-AS7922
    65.172.148.0/24
  25. May 28, 2015
    Route object
    AS11598 Cloudsmart
    RADB route object for AS11598 Cloudsmart, maintainer MAINT-AS5650
    65.172.152.0/22
  26. Sep 25, 2015
    Route object
    AS26794 Dakota Carrier Network
    RADB route object for AS26794 Dakota Carrier Network, maintainer MAINT-AS26794
    65.173.30.0/24
  27. Nov 11, 2016
    Route object
    AS16657 Crown Castle Fiber LLC
    RADB route object for AS16657 Crown Castle Fiber LLC, maintainer MAINT-AS27506
    65.172.152.0/22
  28. Feb 26, 2018
    Route object
    AS46131 TheIPGuys.Net, LLC
    RADB route object for AS46131 TheIPGuys.Net, LLC, maintainer MAINT-AS7922
    65.172.39.0/24
  29. Oct 17, 2018
    Route object
    AS11473 Watch Communications
    RADB route object for AS11473 Watch Communications, maintainer MAINT-RR
    65.172.120.0/21
  30. Oct 17, 2018
    Route object
    AS35971 CompuNet, Inc.
    RADB route object for AS35971 CompuNet, Inc., maintainer MAINT-RR
    65.173.235.0/24
  31. Apr 14, 2019
    Route object
    AS46887 Crown Castle Fiber LLC
    RADB route object for AS46887 Crown Castle Fiber LLC, maintainer MAINT-AS27506
    65.172.152.0/22
  32. Jul 31, 2019
    Route object
    AS55933 Cloudie Limited
    RADB route object for AS55933 Cloudie Limited, maintainer MAINT-AS134121
    65.173.64.0/20
  33. Dec 9, 2019
    Route object
    AS134121 Rainbow network limited
    RADB route object for AS134121 Rainbow network limited, maintainer MAINT-AS134823
    65.173.64.0/20
  34. Apr 6, 2020
    Route object
    AS19201 Eastex Telephone Cooperative, Inc.
    RADB route object for AS19201 Eastex Telephone Cooperative, Inc., maintainer MAINT-CCI
    65.173.104.0/22
  35. Apr 17, 2020
    Route object
    AS134121 Rainbow network limited
    RADB route object for AS134121 Rainbow network limited, maintainer MAINT-AS134823
    65.173.68.0/24
  36. Apr 17, 2020
    Route object
    AS134121 Rainbow network limited
    RADB route object for AS134121 Rainbow network limited, maintainer MAINT-AS134823
    65.173.69.0/24
  37. Apr 17, 2020
    Route object
    AS134121 Rainbow network limited
    RADB route object for AS134121 Rainbow network limited, maintainer MAINT-AS134823
    65.173.70.0/24
  38. Apr 17, 2020
    Route object
    AS134121 Rainbow network limited
    RADB route object for AS134121 Rainbow network limited, maintainer MAINT-AS134823
    65.173.71.0/24
  39. Apr 17, 2020
    Route object
    AS134121 Rainbow network limited
    RADB route object for AS134121 Rainbow network limited, maintainer MAINT-AS134823
    65.173.72.0/24
  40. Apr 17, 2020
    Route object
    AS134121 Rainbow network limited
    RADB route object for AS134121 Rainbow network limited, maintainer MAINT-AS134823
    65.173.73.0/24
  41. Apr 17, 2020
    Route object
    AS134121 Rainbow network limited
    RADB route object for AS134121 Rainbow network limited, maintainer MAINT-AS134823
    65.173.74.0/24
  42. Apr 17, 2020
    Route object
    AS134121 Rainbow network limited
    RADB route object for AS134121 Rainbow network limited, maintainer MAINT-AS134823
    65.173.75.0/24
  43. Apr 17, 2020
    Route object
    AS134121 Rainbow network limited
    RADB route object for AS134121 Rainbow network limited, maintainer MAINT-AS134823
    65.173.77.0/24
  44. Jun 1, 2020
    Route object
    AS138968 rainbow network limited
    RADB route object for AS138968 rainbow network limited, maintainer MAINT-AS58453
    65.173.64.0/20
  45. Jun 1, 2020
    Route object
    AS138968 rainbow network limited
    NTTCOM route object for AS138968 rainbow network limited, maintainer MAINT-CMI-INT-HK
    65.173.64.0/20
  46. Jun 5, 2020
    Route object
    AS55933 Cloudie Limited
    NTTCOM route object for AS55933 Cloudie Limited, maintainer MAINT-CMI-INT-HK
    65.173.64.0/20
  47. Jun 6, 2020
    Route object
    AS6917 Multex Systems, Inc.
    RADB route object for AS6917 Multex Systems, Inc., maintainer MAINT-AS40676
    65.172.48.0/22
  48. Nov 21, 2020
    Route object
    AS26055 Five9 Inc.
    RADB route object for AS26055 Five9 Inc., maintainer MAINT-AS40676
    65.172.48.0/22
  49. May 11, 2021
    Route object
    AS1239 Cogent Communications, LLC
    ARIN route object for AS1239 Cogent Communications, LLC, maintainer MNT-COGC
  50. Dec 8, 2021
    Route object
    AS15065 Slic Network Solutions, Inc
    RADB route object for AS15065 Slic Network Solutions, Inc, maintainer MAINT-AS7029
    65.172.240.0/22
  51. Apr 15, 2022
    Route object
    AS396139 Resound Networks, LLC
    RADB route object for AS396139 Resound Networks, LLC, maintainer MAINT-AS15164
    65.173.109.0/24
  52. May 4, 2022
    Route object
    AS396139 Resound Networks, LLC
    RADB route object for AS396139 Resound Networks, LLC, maintainer MAINT-AS15164
    65.173.108.0/24
  53. May 18, 2023
    Route object
    ALTDB route object for AS48828, maintainer MAINT-AS48828
    65.173.228.0/24
  54. May 18, 2023
    Route object
    ALTDB route object for AS48828, maintainer MAINT-AS48828
    65.173.229.0/24
  55. May 18, 2023
    Route object
    ALTDB route object for AS48828, maintainer MAINT-AS48828
    65.173.230.0/24
  56. May 18, 2023
    Route object
    ALTDB route object for AS48828, maintainer MAINT-AS48828
    65.173.231.0/24
  57. Jun 6, 2023
    Route object
    AS174 Cogent Communications, LLC
    ARIN route object for AS174 Cogent Communications, LLC, maintainer MNT-COGC
  58. Aug 14, 2023
    Route object
    ALTDB route object for AS206371, maintainer MAINT-AS48828
    65.173.228.0/24
  59. Aug 14, 2023
    Route object
    ALTDB route object for AS206371, maintainer MAINT-AS48828
    65.173.229.0/24
  60. Aug 14, 2023
    Route object
    ALTDB route object for AS206371, maintainer MAINT-AS48828
    65.173.230.0/24
  61. Aug 14, 2023
    Route object
    ALTDB route object for AS206371, maintainer MAINT-AS48828
    65.173.231.0/24
  62. Oct 5, 2023
    Route object
    ALTDB route object for AS47714, maintainer MAINT-AS48828
    65.173.228.0/24
  63. May 5, 2024– today
    Announced
    AS174 Cogent Communications, LLC
    Internet provider
  64. Aug 8, 2024
    Route object
    ALTDB route object for AS50286, maintainer MAINT-AS48828
    65.173.228.0/24
  65. Aug 12, 2024
    Route object
    ALTDB route object for AS50286, maintainer MAINT-AS48828
    65.173.229.0/24
  66. Aug 19, 2024
    Route object
    ALTDB route object for AS50286, maintainer MAINT-AS48828
    65.173.230.0/24
  67. Aug 24, 2024
    Route object
    ALTDB route object for AS50286, maintainer MAINT-AS48828
    65.173.231.0/24
  68. Sep 2, 2024
    Route object
    ALTDB route object for AS50286, maintainer MAINT-AS48828
    65.173.232.0/24
  69. Sep 19, 2024
    Route object
    ALTDB route object for AS50286, maintainer MAINT-AS48828
    65.173.233.0/24
  70. Oct 28, 2024
    Route object
    ALTDB route object for AS50286, maintainer MAINT-AS48828
    65.173.234.0/24

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
PrefixOriginTypeLeased fromProxy exitsHolderRPKI
65.172.24.0/22
since Jun 2008
AS14813Residential3
1 always on
Cogent Communications, LLC
65.172.24.0/23
since Nov 2016
AS14813Residential1Cogent Communications, LLC
65.172.24.0/24
since Mar 2025
AS14813Residential1Cogent Communications, LLC
65.172.25.0/24
since Mar 2025
AS14813ResidentialCogent Communications, LLC
65.172.26.0/23
since Nov 2016
AS14813Residential2
1 always on
Cogent Communications, LLC
65.172.26.0/24
since Mar 2025
AS14813Residential2
1 always on
Cogent Communications, LLC
65.172.27.0/24
since Mar 2025
AS14813ResidentialCogent Communications, LLC
65.172.54.0/24
since Jan 2010
AS1647BusinessCogent Communications, LLC
65.172.71.0/24
since Apr 2025
AS174BusinessCogent Communications, LLC
65.172.72.0/23
since Oct 2006
AS18632Residential10
2 always on
Cogent Communications, LLC
65.172.132.0/24
since Nov 2023
AS174UnknownCogent Communications, LLC
65.172.240.0/24
since May 2005
AS15065ResidentialCogent Communications, LLC
65.172.241.0/24
since May 2005
AS15065ResidentialCogent Communications, LLC
65.172.242.0/24
since May 2005
AS15065ResidentialCogent Communications, LLC
65.172.243.0/24
since May 2005
AS15065Residential4
1 always on
Cogent Communications, LLC
65.172.244.0/22
since Dec 2023
AS18435Residential17Cogent Communications, LLC
65.172.244.0/24
since Dec 2016
AS18435Residential1Cogent Communications, LLC
65.172.245.0/24
since Dec 2016
AS18435ResidentialCogent Communications, LLC
65.172.246.0/24
since May 2023
AS18435Residential16Cogent Communications, LLC
65.172.247.0/24
since May 2023
AS18435ResidentialCogent Communications, LLC
65.173.64.0/22
since May 2005
AS11398ResidentialCogent Communications, LLC
via Sprint DSL Network
65.173.76.0/24
since Jul 2019
AS209ResidentialCogent Communications, LLC
via Sprint DSL Network
65.173.78.0/24
since Jul 2019
AS209ResidentialCogent Communications, LLC
via Sprint DSL Network
65.173.79.0/24
since Jul 2019
AS209ResidentialCogent Communications, LLC
via Sprint DSL Network
65.173.82.0/23
since Nov 2019
AS209ResidentialCogent Communications, LLC
via Sprint DSL Network
65.173.82.0/24
since Oct 2023
AS19901ResidentialCogent Communications, LLC
via Sprint DSL Network
65.173.84.0/23
since Nov 2019
AS209ResidentialCogent Communications, LLC
via Sprint DSL Network
65.173.86.0/23
since May 2005
AS11398ResidentialCogent Communications, LLC
via Sprint DSL Network
65.173.86.0/24
since May 2016
AS209ResidentialCogent Communications, LLC
via Sprint DSL Network
65.173.88.0/23
since May 2005
AS11398ResidentialCogent Communications, LLC
via Sprint DSL Network
65.173.90.0/24
since Oct 2019
AS209ResidentialCogent Communications, LLC
via Sprint DSL Network
65.173.92.0/22
since Oct 2023
AS19901ResidentialCogent Communications, LLC
via Sprint DSL Network
65.173.93.0/24
since Oct 2023
AS19901ResidentialCogent Communications, LLC
via Sprint DSL Network
65.173.94.0/24
since Oct 2023
AS19901ResidentialCogent Communications, LLC
via Sprint DSL Network
65.173.160.0/19
since Dec 2025
AS4637ISP proxyIP broker RackdogCogent Communications, LLC
65.173.245.0/24
since Oct 2025
AS21582Business27
6 always on
Cogent 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
65.160.0.0 - 65.173.255.255917,504COGCCogent Communications, LLC (COGC) · USDirect AllocationSep 19, 2000abuse@cogentco.com
└ 65.172.46.96/2816FON-1101803104101705unknown———
└ 65.172.46.112/2816SPRINTLINKunknown———
└ 65.172.48.0/221,024GREYBEARD-TECHNOLOGY-LLCunknown———
└ 65.172.53.224/298SPRINTLINKunknown———
└ 65.172.54.0/24256SPRINTLINKInterop Technologies (INTER-529) · USReassignedAug 26, 2009—
└ 65.172.57.48/2816FON-110180587292044unknown———
└ 65.172.57.208/2816SPRINTLINKunknown———
└ 65.172.71.0/24256FON-110180940889818ITG, Inc. (ITGINC) · USReassignedOct 18, 2001—
└ 65.172.72.0/23512VV-174Volcano Vision, Inc. (VV-174) · USReassignedMay 18, 2020admin@volcano.net
└ 65.172.103.48/2816SPRINTLINKunknown———
└ 65.172.132.0/24256SPRINTLINKApplied Card Systems (ACS-120) · USReassignedApr 21, 2015DNSAdmin@appliedcard.com
└ 65.172.133.8/298SPRINTLINKunknown———
└ 65.172.176.96/2816FON-1101836384101028unknown———
└ 65.172.193.32/2732FON-110184067291004unknown———
└ 65.172.193.192/2732SPRINTLINKunknown———
└ 65.172.193.240/2816FON-110184088091029unknown———
└ 65.172.218.16/2816SPRINTLINKunknown———
└ 65.172.240.0/221,024FON-110185267291831Slic Network Solutions, Inc. (SNS-34) · USReassignedJan 8, 2002—
└ 65.172.244.0/221,024FON-110185369692445The Junction Internet, LLC (THEJUN) · USReassignedJan 8, 2002hostmaster@junct.com
└ 65.173.0.56/298SPRINTLINKunknown———
└ 65.173.0.136/298SPRINTLINKunknown———
└ 65.173.0.160/2732SPRINTLINKunknown———
└ 65.173.1.96/2732FON-110185712089737unknown———
└ 65.173.1.224/321SPRINTLINKunknown———
└ 65.173.2.16/2816SPRINTLINKunknown———
└ 65.173.64.0/204,096FON-110187315290235Ltd Sprint FLA ANS ISP (LTSF) · USReallocatedOct 30, 2001—
└ 65.173.64.0/204,096CENTURYLINK-FL-DSLSprint DSL Network (SDSL) · USReallocatedJan 8, 2002—
└ 65.173.80.0/204,096DSL-NET231-NCSprint DSL Network (SDSL) · USReallocatedJan 7, 2002—
└ 65.173.99.0/24256FON-110188211291192unknown———
└ 65.173.125.0/2664SPRINTLINKunknown———
└ 65.173.125.128/2664SPRINTLINKunknown———
└ 65.173.125.192/2816SPRINTLINKunknown———
└ 65.173.125.240/298SPRINTLINKunknown———
└ 65.173.129.184/298SPRINTLINKunknown———
└ 65.173.129.192/2816SPRINTLINKunknown———
└ 65.173.129.208/2816SPRINTLINKunknown———
└ 65.173.129.224/2816SPRINTLINKunknown———
└ 65.173.160.0/198,192RACKDOG-CGNT-NET-140RCN (C11605387) · USReassignedMay 27, 2026abuse@cogentco.com
via COGC
└ 65.173.216.64/2664SPRINTLINKunknown———
└ 65.173.224.96/2816SPRINTLINKunknown———
└ 65.173.224.120/298SPRINTLINKunknown———
└ 65.173.225.128/2732SPRINTLINKunknown———
└ 65.173.225.192/2664FON-110191456090178unknown———
└ 65.173.238.128/2732SPRINTLINKunknown———
└ 65.173.238.160/2816SPRINTLINKunknown———
└ 65.173.238.224/2732SPRINTLINKunknown———
└ 65.173.245.0/24256FON-110191948890495Northern Arizona University (NAZU) · USReassignedNov 7, 2001—
└ 65.173.252.192/298SPRINTLINKunknown———
└ 65.173.252.200/298SPRINTLINKunknown———

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

131,072 addresses
TypeAddressesShareRanges
Internet provider109,47984%32
Residential11,7769.0%40
ISP proxyanonymizer8,1926.3%1
Business1,3691.0%32
Unknown2560.20%1

Network & registry

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