LAYER3 INTEL
Get started
Sign in
Data as of Nov 4, 2026

65.174.0.0/16

8,192 anonymizer addresses · 13% · ISP proxy

Cogent Communications, LLC

Announcement
this exact prefix
No RPKI
Announced by
AS174
Type
Internet provider
83% of it
IPv4 market

Path

1 · Holder
Cogent Communications, LLC
record created Sep 19, 2000
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 65.174.0.0/16/24s
Rackdog
8,19213%
32
Leased from

Owners leasing their own space

NameIn 65.174.0.0/16/24s
Cogent Communications, LLC
8,19213%
32

Lineage

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

65.174.0.0/16

From the registry to its use

  1. Sep 19, 2000
    Registry record
    Cogent Communications, LLC
    Direct Allocation
    65.174.0.0/16
  2. Sep 11, 2002
    Route object
    AS21770 Simple2Call
    ALTDB route object for AS21770 Simple2Call, maintainer MNT-AS21770
    65.174.134.0/23
  3. May 9, 2005– May 16, 2024
    Announced
    AS1239 Cogent Communications, LLC
  4. Aug 24, 2005
    Route object
    AS15207 Fairway Independent Mortgage Corporation
    RADB route object for AS15207 Fairway Independent Mortgage Corporation, maintainer MAINT-AS6079
    65.174.130.0/23
  5. Aug 24, 2005
    Route object
    AS15207 Fairway Independent Mortgage Corporation
    RADB route object for AS15207 Fairway Independent Mortgage Corporation, maintainer MAINT-AS6079
    65.174.131.0/24
  6. Feb 6, 2006
    Route object
    AS15207 Fairway Independent Mortgage Corporation
    RADB route object for AS15207 Fairway Independent Mortgage Corporation, maintainer MAINT-AS6079
    65.174.130.0/24
  7. Mar 13, 2008
    Route object
    AS7029 Windstream Communications LLC
    RADB route object for AS7029 Windstream Communications LLC, maintainer MAINT-AS7029
    65.174.148.0/22
  8. Mar 13, 2008
    Route object
    AS7029 Windstream Communications LLC
    RADB route object for AS7029 Windstream Communications LLC, maintainer MAINT-AS7029
    65.174.148.0/24
  9. Mar 13, 2008
    Route object
    AS7029 Windstream Communications LLC
    RADB route object for AS7029 Windstream Communications LLC, maintainer MAINT-AS7029
    65.174.149.0/24
  10. Mar 13, 2008
    Route object
    AS7029 Windstream Communications LLC
    RADB route object for AS7029 Windstream Communications LLC, maintainer MAINT-AS7029
    65.174.150.0/24
  11. Mar 13, 2008
    Route object
    AS7029 Windstream Communications LLC
    RADB route object for AS7029 Windstream Communications LLC, maintainer MAINT-AS7029
    65.174.151.0/24
  12. Oct 28, 2009
    Route object
    AS20115 Charter Communications LLC
    RADB route object for AS20115 Charter Communications LLC, maintainer MAINT-CHTR-WD
    65.174.200.0/22
  13. Sep 21, 2010
    Route object
    AS25612 DSL Express
    RADB route object for AS25612 DSL Express, maintainer MAINT-AS1828
    65.174.220.0/24
  14. Mar 31, 2011
    Route object
    AS11280 SNAPPYDSL.NET
    RADB route object for AS11280 SNAPPYDSL.NET, maintainer MAINT-AS1828
    65.174.220.0/24
  15. Oct 7, 2011
    Route object
    AS16948 CityNet
    ALTDB route object for AS16948 CityNet, maintainer MAINT-AS6536
    65.174.18.0/23
  16. May 8, 2015
    Route object
    AS53484 Williams Lea LLC
    RADB route object for AS53484 Williams Lea LLC, maintainer MAINT-AS5650
    65.174.18.0/24
  17. May 8, 2015
    Route object
    AS53484 Williams Lea LLC
    RADB route object for AS53484 Williams Lea LLC, maintainer MAINT-AS5650
    65.174.19.0/24
  18. Oct 17, 2018
    Route object
    AS17068 Ohio Mutual Insurance Company
    RADB route object for AS17068 Ohio Mutual Insurance Company, maintainer MAINT-RR
    65.174.159.0/24
  19. Oct 17, 2018
    Route object
    AS33363 Charter Communications, Inc
    RADB route object for AS33363 Charter Communications, Inc, maintainer MAINT-RR
    65.174.196.0/24
  20. Oct 17, 2018
    Route object
    AS33671 USBid, Inc.
    RADB route object for AS33671 USBid, Inc., maintainer MAINT-RR
    65.174.196.0/24
  21. May 5, 2024– today
    Announced
    AS174 Cogent Communications, LLC
    Internet provider

Announcements

More specific

Announcements inside

PrefixOriginTypeLeased fromHolderRPKI
65.174.32.0/19
since Dec 2025
AS4637ISP proxyIP broker RackdogCogent Communications, LLC
65.174.66.0/24
since May 2005
AS12217BusinessCogent Communications, LLC
65.174.160.0/22
since Nov 2019
AS209ResidentialCogent Communications, LLC
via Sprint DSL Network
65.174.169.0/24
since May 2012
AS4972BusinessCogent Communications, LLC
65.174.219.0/24
since Oct 2024
AS174BusinessCogent Communications, LLC
65.174.253.0/24
since May 2005
AS26861BusinessCogent 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
65.174.0.0/1665,536COGCCogent Communications, LLC (COGC) · USDirect AllocationSep 19, 2000abuse@cogentco.com
└ 65.174.7.216/298SPRINTLINKunknown———
└ 65.174.24.48/298SPRINTLINKunknown———
└ 65.174.32.0/198,192RACKDOG-CGNT-NET-141RCN (C11605388) · USReassignedMay 27, 2026abuse@cogentco.com
via COGC
└ 65.174.100.0/221,024SPRINTLINKunknown———
└ 65.174.117.192/298SPRINTLINKunknown———
└ 65.174.122.0/24256SL-CTL-EMBQ-65-174-122-0-1unknown———
└ 65.174.129.40/298FON-110195536888780unknown———
└ 65.174.129.64/2664FON-110195539288768unknown———
└ 65.174.136.32/298SPRINTLINKunknown———
└ 65.174.136.40/298FON-110195716088790unknown———
└ 65.174.136.48/298FON-110195716888791unknown———
└ 65.174.136.56/298FON-110195717688792unknown———
└ 65.174.136.64/298FON-110195718488793unknown———
└ 65.174.136.72/298FON-110195719288794unknown———
└ 65.174.136.80/298FON-110195720088795unknown———
└ 65.174.136.88/298FON-110195720888796unknown———
└ 65.174.146.208/2816SPRINTLINKunknown———
└ 65.174.146.240/298SPRINTLINKunknown———
└ 65.174.156.192/2664SPRINTLINKunknown———
└ 65.174.158.192/2664SPRINTLINKunknown———
└ 65.174.160.0/221,024FON-110196326488877Ltd Sprint FLA ANS ISP (LTSF) · USReallocatedSep 27, 2001—
└ 65.174.160.0/221,024DSL-NET199-OHSprint DSL Network (SDSL) · USReallocatedJan 8, 2002—
└ 65.174.177.32/2732FON-110196764888971unknown———
└ 65.174.178.96/2816SPRINTLINKunknown———
└ 65.174.178.160/2816SPRINTLINKunknown———
└ 65.174.178.176/298SPRINTLINKunknown———
└ 65.174.216.64/2664FON-110197766489502unknown———
└ 65.174.221.0/24256SPRINTLINKunknown———
└ 65.174.229.0/25128SPRINTLINKunknown———
└ 65.174.247.160/2732SPRINTLINKunknown———
└ 65.174.253.0/24256SPRINTLINKHP (Addison Avenue Credit Union) (HAACU) · USReassignedSep 19, 2005—

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

65,536 addresses
TypeAddressesShareRanges
Internet provider54,65683%20
ISP proxyanonymizer8,19213%1
Business1,4082.1%17
Residential1,2802.0%2

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