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Data as of Nov 8, 2026

204.96.0.0/15

19,456 anonymizer addresses · 15% · ISP proxy

Cogent Communications, LLC

Announcement
this exact prefix
No RPKI
Announced by
AS174
Type
Internet provider
82% of it

Residential-proxy exits

Proxy exits
1
<0.01% of its addresses · listed by providers
Spread
1 of 512
/24s with at least one exit
Providers
1
selling exits here

Proxy providers listing exits

  • GSocks
IPv4 market

Path

1 · Holder
Cogent Communications, LLC
record created Jul 13, 1994
2 · Leased from
Rackdog
for its owner Cogent Communications, LLC
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 204.96.0.0/15/24s
Rackdog
16,38413%
64
Leased from

Owners leasing their own space

NameIn 204.96.0.0/15/24s
Cogent Communications, LLC
19,45615%
76

Lineage

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

204.96.0.0/15

From the registry to its use

  1. Jul 13, 1994
    Registry record
    Cogent Communications, LLC
    Direct Allocation (legacy, pre-1997)
    204.94.0.0 - 204.97.255.255
  2. Sep 8, 2000
    Route object
    AS13792 Unitas Global
    RADB route object for AS13792 Unitas Global, maintainer MAINT-AS1828
    204.96.209.0/24
  3. May 9, 2005– May 16, 2024
    Announced
    AS1239 Cogent Communications, LLC
  4. Jun 7, 2005
    Route object
    AS7029 Windstream Communications LLC
    RADB route object for AS7029 Windstream Communications LLC, maintainer MAINT-AS7029
    204.97.32.0/19
  5. Jun 7, 2005
    Route object
    AS7029 Windstream Communications LLC
    RADB route object for AS7029 Windstream Communications LLC, maintainer MAINT-AS7029
    204.97.89.0/24
  6. Jun 7, 2005
    Route object
    AS7029 Windstream Communications LLC
    RADB route object for AS7029 Windstream Communications LLC, maintainer MAINT-AS7029
    204.97.220.0/24
  7. Apr 20, 2006
    Route object
    AS27810 Mercanet LTDA
    RADB route object for AS27810 Mercanet LTDA, maintainer MAINT-AS1828
    204.97.204.0/24
  8. Apr 20, 2006
    Route object
    AS27810 Mercanet LTDA
    RADB route object for AS27810 Mercanet LTDA, maintainer MAINT-AS1828
    204.97.207.0/24
  9. Jun 16, 2006
    Route object
    AS27650 Emtel S.A. E.S.P.
    RADB route object for AS27650 Emtel S.A. E.S.P., maintainer MAINT-AS1828
    204.97.198.0/24
  10. Feb 25, 2013
    Route object
    AS7029 Windstream Communications LLC
    RADB route object for AS7029 Windstream Communications LLC, maintainer MAINT-AS7029
    204.96.136.0/21
  11. Feb 10, 2016
    Route object
    AS7849 RingSquared CC
    ALTDB route object for AS7849 RingSquared CC, maintainer MAINT-TOWARDEX
    204.97.12.0/24
  12. Oct 17, 2018
    Route object
    AS13343 Charter Communications Inc
    RADB route object for AS13343 Charter Communications Inc, maintainer MAINT-RR
    204.96.26.0/24
  13. Oct 17, 2018
    Route object
    AS33363 Charter Communications, Inc
    RADB route object for AS33363 Charter Communications, Inc, maintainer MAINT-RR
    204.96.26.0/24
  14. Oct 17, 2018
    Route object
    AS17054 Expedient
    RADB route object for AS17054 Expedient, maintainer MAINT-RR
    204.96.59.0/24
  15. Oct 17, 2018
    Route object
    AS19019 TierPoint, LLC
    RADB route object for AS19019 TierPoint, LLC, maintainer MAINT-RR
    204.96.128.0/20
  16. Mar 23, 2021
    Route object
    AS32854 Achieva Credit Union
    RADB route object for AS32854 Achieva Credit Union, maintainer MAINT-AS5650
    204.96.26.0/24
  17. May 11, 2021
    Route object
    AS1239 Cogent Communications, LLC
    ARIN route object for AS1239 Cogent Communications, LLC, maintainer MNT-COGC
  18. Mar 24, 2022
    Route object
    AS270118 Soluciones, Analiticos y Servicios Team
    ALTDB route object for AS270118 Soluciones, Analiticos y Servicios Team, maintainer MAINT-SPRINT
    204.96.192.0/18
  19. Jun 6, 2023
    Route object
    AS174 Cogent Communications, LLC
    ARIN route object for AS174 Cogent Communications, LLC, maintainer MNT-COGC
  20. May 5, 2024– today
    Announced
    AS174 Cogent Communications, LLC
    Internet provider
  21. Apr 14, 2026
    Route object
    AS33717 Chunghwa Telecom Global, INC
    ARIN route object for AS33717 Chunghwa Telecom Global, INC, maintainer MNT-COGC
    204.96.96.0/24

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
204.96.5.0/24
since Aug 2016
AS16560BusinessCogent Communications, LLC
204.96.16.0/23
since Jul 2014
AS19201ResidentialCogent Communications, LLC
204.96.180.0/23
since Aug 2023
AS26077ResidentialCogent Communications, LLC
204.96.180.0/24
since Feb 2022
AS26077ResidentialCogent Communications, LLC
204.96.181.0/24
since Feb 2022
AS26077ResidentialCogent Communications, LLC
204.96.188.0/22
since Aug 2023
AS26077ResidentialCogent Communications, LLC
204.96.188.0/24
since Jan 2022
AS26077ResidentialCogent Communications, LLC
204.96.191.0/24
since Aug 2023
AS26077ResidentialCogent Communications, LLC
204.97.92.0/22
since Nov 2019
AS3257ISP proxyCogent Communications, LLC
via I-2000, Inc.
204.97.96.0/21
since Nov 2019
AS3257ISP proxyCogent Communications, LLC
via I-2000, Inc.
204.97.104.0/24
since Sep 2019
AS397932BusinessCogent Communications, LLC
204.97.128.0/18
since Jul 2026
AS22773ISP proxyIP broker Rackdog1Cogent Communications, LLC
204.97.128.0/20
since Aug 2025
AS6079ISP proxyIP broker RackdogCogent Communications, LLC
204.97.128.0/21
since Oct 4, 2026
AS7029ISP proxyIP broker RackdogCogent Communications, LLC
204.97.136.0/21
since Sep 28, 2026
AS7029ISP proxyIP broker RackdogCogent Communications, LLC
204.97.144.0/20
since Aug 2025
AS6079ISP proxyIP broker RackdogCogent Communications, LLC
204.97.160.0/20
since Sep 2025
AS7459ISP proxyIP broker RackdogCogent Communications, LLC
204.97.176.0/20
since Sep 2025
AS7459ISP proxyIP broker Rackdog1Cogent Communications, LLC
204.97.222.0/23
since Sep 2016
AS4133ResidentialCogent Communications, LLC
204.97.230.0/23
since Aug 2013
AS7381HostingCogent 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
204.94.0.0 - 204.97.255.255262,144COGCCogent Communications, LLC (COGC) · USDirect AllocationJul 13, 1994abuse@cogentco.com
└ 204.96.5.0/24256SPRINT-CC6005-8IDMI (IDMI) · USReassignedOct 28, 1999—
└ 204.96.18.0/2664PHILADELPHIA-COLLEGE-OF-OSTEOPunknown———
└ 204.96.96.0/24256SPRINTLINKunknown———
└ 204.96.120.16/2816SPRINTLINKunknown———
└ 204.96.120.64/298SPRINTLINKunknown———
└ 204.96.120.72/298SPRINTLINKunknown———
└ 204.96.120.160/298SPRINTLINKunknown———
└ 204.96.120.176/298SPRINTLINKunknown———
└ 204.96.180.0/23512NEXTLINKLogaNet (LOGANE) · USReassignedSep 17, 2002—
└ 204.96.184.88/298SPRINTLINKunknown———
└ 204.96.188.0/221,024NEXTLINKJag Wire Enterprises, Inc. (JWE) · USReassignedSep 18, 2002—
└ 204.96.197.80/298SPRINTLINKunknown———
└ 204.96.197.88/298SPRINTLINKunknown———
└ 204.96.199.120/298SPRINTLINKunknown———
└ 204.96.216.16/2816SPRINTLINKunknown———
└ 204.97.11.112/298SPRINTLINKunknown———
└ 204.97.14.64/2732SPRINTLINKunknown———
└ 204.97.14.128/25128FON-342891276869634unknown———
└ 204.97.75.16/2816SPRINTLINKunknown———
└ 204.97.75.64/2732SPRINTLINKunknown———
└ 204.97.75.176/2816SPRINTLINKunknown———
└ 204.97.75.192/2816SPRINTLINKunknown———
└ 204.97.75.240/2816SPRINTLINKunknown———
└ 204.97.87.136/321SPRINTLINKunknown———
└ 204.97.92.0/221,024SPRINT-CC615FI-2000, Inc. (I2I) · USReallocatedSep 30, 1994abuse@gtt.net
└ 204.97.94.232/298TRNS-HFNHudson Fiber Network, Inc (HFN-3) · USReassignedApr 30, 2014ofn-noc@extenetsystems.com
└ 204.97.96.0/212,048SPRINT-CC6167I-2000, Inc. (I2I) · USReallocatedOct 4, 1994abuse@gtt.net
└ 204.97.96.0/24256CYDS-NETCygne Designs, Inc. (C00007779) · USReassignedJan 24, 1996abuse@gtt.net
via SPRINT-CC6167
└ 204.97.97.0/24256I2000-NET2I-2000, Inc (C00007780) · USReassignedJan 24, 1996abuse@gtt.net
via SPRINT-CC6167
└ 204.97.98.0/24256NEWSTALK-NETThe Talk Channel (C00007781) · USReassignedJan 24, 1996abuse@gtt.net
via SPRINT-CC6167
└ 204.97.99.0/24256I2000-NET7I-2000, Inc. (C00007792) · USReassignedJan 24, 1996abuse@gtt.net
via SPRINT-CC6167
└ 204.97.100.0/24256UNDERNET-NETJarad Broadcasting (C00007782) · USReassignedJan 24, 1996abuse@gtt.net
via SPRINT-CC6167
└ 204.97.101.0/24256EMNET-NETEd McGinley (EDMCGI) · USReassignedJan 24, 1996edmcg@i-2000.com
└ 204.97.102.0/24256I2000-NET3I-2000, Inc. (C00007783) · USReassignedJan 24, 1996abuse@gtt.net
via SPRINT-CC6167
└ 204.97.103.0/24256PECONIC-NETPeconic On-Line (C00007784) · USReassignedJan 24, 1996abuse@gtt.net
via SPRINT-CC6167
└ 204.97.104.0/24256SPRINT-CC6168New York State Assembly/NYSERNET (C01082614) · USReassignedOct 4, 1994abuse@cogentco.com
via COGC
└ 204.97.128.0/1816,384RACKDOG-CGNT-NET-35RCN (C11605230) · USReassignedMay 27, 2026abuse@cogentco.com
via COGC
└ 204.97.217.64/2732SPRINTLINKunknown———
└ 204.97.218.16/2816SPRINTLINKunknown———
└ 204.97.222.0/23512SPRINT-CC61DFBitwise Software Inc. (BITWIS-1) · USReassignedNov 16, 1994admin@bitwise.net
└ 204.97.228.0/298FON-342896742491349unknown———
└ 204.97.230.0/23512SPRINTLINKSunGard VeriCenter Inc (SUNGA-14) · USReassignedNov 17, 2009—
└ 204.97.253.24/298SPRINTLINKunknown———
└ 204.97.253.192/2732SPRINTLINKunknown———

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 provider107,64782%28
ISP proxyanonymizer19,45615%11
Residential2,5602.0%7
Business8970.68%25
Hosting5120.39%1

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