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Data as of Nov 4, 2026

198.67.0.0/16

32,768 anonymizer addresses · 50% · ISP proxy

Cogent Communications, LLC

Announcement
this exact prefix
No RPKI
Announced by
AS174
Type
ISP proxy
50% of it
IPv4 market

Path

1 · Holder
Cogent Communications, LLC
record created Feb 11, 1993
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
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 198.67.0.0/16/24s
Rackdog
32,76850%
128
Leased from

Owners leasing their own space

NameIn 198.67.0.0/16/24s
Cogent Communications, LLC
32,76850%
128

Lineage

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

198.67.0.0/16

From the registry to its use

  1. Feb 11, 1993
    Registry record
    Cogent Communications, LLC
    Direct Allocation (legacy, pre-1997)
    198.67.0.0 - 198.70.255.255
  2. May 9, 2005– May 16, 2024
    Announced
    AS1239 Cogent Communications, LLC
  3. May 11, 2021
    Route object
    AS1239 Cogent Communications, LLC
    ARIN route object for AS1239 Cogent Communications, LLC, maintainer MNT-COGC
  4. Sep 21, 2022
    Route object
    AS1239 Cogent Communications, LLC
    ARIN route object for AS1239 Cogent Communications, LLC, maintainer MNT-COGC
    198.67.7.0/24
  5. Oct 25, 2022
    Route object
    AS1239 Cogent Communications, LLC
    ARIN route object for AS1239 Cogent Communications, LLC, maintainer MNT-COGC
    198.67.9.0/24
  6. Jan 9, 2023
    Route object
    AS1239 Cogent Communications, LLC
    ARIN route object for AS1239 Cogent Communications, LLC, maintainer MNT-COGC
    198.67.43.0/24
  7. Jun 6, 2023
    Route object
    AS174 Cogent Communications, LLC
    ARIN route object for AS174 Cogent Communications, LLC, maintainer MNT-COGC
  8. Jun 6, 2023
    Route object
    AS174 Cogent Communications, LLC
    ARIN route object for AS174 Cogent Communications, LLC, maintainer MNT-COGC
    198.67.7.0/24
  9. Jun 6, 2023
    Route object
    AS174 Cogent Communications, LLC
    ARIN route object for AS174 Cogent Communications, LLC, maintainer MNT-COGC
    198.67.9.0/24
  10. Jun 6, 2023
    Route object
    AS174 Cogent Communications, LLC
    ARIN route object for AS174 Cogent Communications, LLC, maintainer MNT-COGC
    198.67.43.0/24
  11. May 5, 2024– today
    Announced
    AS174 Cogent Communications, LLC
    Internet provider
  12. Jul 29, 2026
    Route object
    AS398465 Rackdog, LLC
    RADB route object for AS398465 Rackdog, LLC, maintainer MAINT-AS22773
    198.67.64.0/18
  13. Jul 29, 2026
    Route object
    AS398465 Rackdog, LLC
    RADB route object for AS398465 Rackdog, LLC, maintainer MAINT-AS22773
    198.67.192.0/19

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

PrefixOriginTypeLeased fromHolderRPKI
198.67.1.0/24
since Jan 2024
AS174UnknownCogent Communications, LLC
198.67.15.0/24
since Nov 2007
AS29838HostingCogent Communications, LLC
198.67.64.0/20
since Aug 2025
AS7029ISP proxyIP broker RackdogCogent Communications, LLC
198.67.80.0/20
since Aug 2025
AS7029ISP proxyIP broker RackdogCogent Communications, LLC
198.67.96.0/20
since Aug 2025
AS7029ISP proxyIP broker RackdogCogent Communications, LLC
198.67.112.0/20
since Aug 2025
AS7029ISP proxyIP broker RackdogCogent Communications, LLC
198.67.192.0/20
since Oct 2025
AS7029ISP proxyIP broker RackdogCogent Communications, LLC
198.67.208.0/20
since Oct 2025
AS7029ISP proxyIP broker RackdogCogent Communications, LLC
198.67.224.0/20
since Oct 2025
AS3320ISP proxyIP broker RackdogCogent Communications, LLC
198.67.240.0/20
since Oct 2025
AS3320ISP proxyIP broker RackdogCogent 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
198.67.0.0 - 198.70.255.255262,144COGCCogent Communications, LLC (COGC) · USDirect AllocationFeb 11, 1993abuse@cogentco.com
└ 198.67.0.16/2816SPRINTLINKunknown———
└ 198.67.0.32/298SPRINTLINKunknown———
└ 198.67.0.40/298SPRINTLINKunknown———
└ 198.67.0.48/2816SPRINTLINKunknown———
└ 198.67.1.0/24256SPRINTLINKCisco Systems Inc. (CISCOS) · USReassignedJul 21, 2023dns-info@cisco.com
└ 198.67.6.0/298SPRINTLINKunknown———
└ 198.67.6.8/298SPRINTLINKunknown———
└ 198.67.7.0/24256SPRINTLINKunknown———
└ 198.67.8.0/298SPRINTLINKunknown———
└ 198.67.8.8/298SPRINTLINKunknown———
└ 198.67.8.16/298SPRINTLINKunknown———
└ 198.67.8.24/298SPRINTLINKunknown———
└ 198.67.8.32/2732SPRINTLINKunknown———
└ 198.67.8.104/298SPRINTLINKunknown———
└ 198.67.8.112/2816SPRINTLINKunknown———
└ 198.67.9.0/24256SPRINTLINKunknown———
└ 198.67.10.0/298SPRINTLINKunknown———
└ 198.67.10.136/298SPRINTLINKunknown———
└ 198.67.11.0/24256PWCunknown———
└ 198.67.12.0/24256AFCEAMCCunknown———
└ 198.67.36.56/298SPRINTLINKunknown———
└ 198.67.36.160/2732FON-332628905695990unknown———
└ 198.67.39.128/2816SPRINTLINKunknown———
└ 198.67.64.0/1816,384RACKDOG-CGNT-NET-14RCN (C11605112) · USReassignedMay 27, 2026abuse@cogentco.com
via COGC
└ 198.67.139.8/298SPRINTLINKunknown———
└ 198.67.139.33/321SPRINTLINKunknown———
└ 198.67.176.0/298SPRINTLINKunknown———
└ 198.67.176.24/298ARCHDIOCESE-OFLA-EDUCunknown———
└ 198.67.176.64/2732SPRINTLINKunknown———
└ 198.67.176.144/298CLOROX-SERVICES-COMPANYunknown———
└ 198.67.176.160/2816SPRINTPCSunknown———
└ 198.67.176.176/298SPRINTPCSunknown———
└ 198.67.176.184/298SPRINTPCSunknown———
└ 198.67.176.192/2664SPRINT-PCSunknown———
└ 198.67.177.148/321SPRINTLINKunknown———
└ 198.67.177.168/298SPRINTLINKunknown———
└ 198.67.177.176/298SPRINKLINKunknown———
└ 198.67.177.184/298SPRINTLINKunknown———
└ 198.67.178.0/2816SPRINTPCSunknown———
└ 198.67.178.16/2816SPRINTPCSunknown———
└ 198.67.178.32/298SPRINTPCSunknown———
└ 198.67.178.40/298SPRINTPCSunknown———
└ 198.67.178.48/2816SPRINTPCSunknown———
└ 198.67.180.80/2816A1-TELEKOMunknown———
└ 198.67.180.96/298UNITED-AIRLINESunknown———
└ 198.67.180.104/298UNITED-AIRLINESunknown———
└ 198.67.180.120/298UNITED-AIRLINESunknown———
└ 198.67.180.128/298UNITED-AIRLINESunknown———
└ 198.67.180.136/298UNITED-AIRLINESunknown———
└ 198.67.180.144/298NATIONAL-ACADEMY-OF-SCIENCESunknown———
└ 198.67.180.152/298NATIONAL-ACADEMY-OF-SCIENCESunknown———
└ 198.67.182.0/23512STACKLOGIC-LLCunknown———
└ 198.67.192.0/1816,384RACKDOG-CGNT-NET-13RCN (C11605111) · USReassignedMay 27, 2026abuse@cogentco.com
via COGC

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
ISP proxyanonymizer32,76850%8
Internet provider31,74248%24
Business5140.78%44
Hosting2560.39%1
Unknown2560.39%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