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Data as of Nov 11, 2026

199.0.0.0/19

Anonymizer · ISP proxy

Telstra Global · space held by Cogent Communications, LLC

Announcement
this exact prefix
No RPKI
Announced by
AS4637
Type
ISP proxy
Risk
90 / 100 · Critical
IPv4 market

Path

1 · Holder
Cogent Communications, LLC
record created Sep 8, 1993
2 · Leased from
Cogent Communications, LLC
its owner, directly
3 · Announced by
AS4637 Telstra Global
since Dec 2025 · 11 mo ago
4 · Use
Proxy providersnamed Bright Data
ISP proxy

Operators, sellers and brokers

Proxy providers

NameParentIn 199.0.0.0/19/24s
Bright Data
8,192100%
32
Leased from

Owners leasing their own space

NameIn 199.0.0.0/19/24s
Cogent Communications, LLC
8,192100%
32

Lineage

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

199.0.0.0/19

From the registry to its use

  1. Sep 8, 1993
    Registry record
    Cogent Communications, LLC
    Direct Allocation (legacy, pre-1997)
    199.0.0.0/14
  2. Jun 12, 2003
    Route object
    AS7456 Interhop Network SERVICES Inc.
    RADB route object for AS7456 Interhop Network SERVICES Inc., maintainer MAINT-AS13768
    199.0.16.0/24
  3. Jun 12, 2003
    Route object
    AS7456 Interhop Network SERVICES Inc.
    RADB route object for AS7456 Interhop Network SERVICES Inc., maintainer MAINT-AS13768
    199.0.17.0/24
  4. Jun 12, 2003
    Route object
    AS7456 Interhop Network SERVICES Inc.
    RADB route object for AS7456 Interhop Network SERVICES Inc., maintainer MAINT-AS13768
    199.0.18.0/24
  5. Jun 12, 2003
    Route object
    AS7456 Interhop Network SERVICES Inc.
    RADB route object for AS7456 Interhop Network SERVICES Inc., maintainer MAINT-AS13768
    199.0.19.0/24
  6. Jun 12, 2003
    Route object
    AS7456 Interhop Network SERVICES Inc.
    RADB route object for AS7456 Interhop Network SERVICES Inc., maintainer MAINT-AS13768
    199.0.20.0/24
  7. Jun 12, 2003
    Route object
    AS7456 Interhop Network SERVICES Inc.
    RADB route object for AS7456 Interhop Network SERVICES Inc., maintainer MAINT-AS13768
    199.0.26.0/24
  8. Jun 12, 2003
    Route object
    AS7456 Interhop Network SERVICES Inc.
    RADB route object for AS7456 Interhop Network SERVICES Inc., maintainer MAINT-AS13768
    199.0.27.0/24
  9. Jun 12, 2003
    Route object
    AS7456 Interhop Network SERVICES Inc.
    RADB route object for AS7456 Interhop Network SERVICES Inc., maintainer MAINT-AS13768
    199.0.28.0/24
  10. Jun 12, 2003
    Route object
    AS7456 Interhop Network SERVICES Inc.
    RADB route object for AS7456 Interhop Network SERVICES Inc., maintainer MAINT-AS13768
    199.0.31.0/24
  11. May 9, 2005– May 16, 2024
    Announced
    AS1239 Cogent Communications, LLC
    as part of 199.0.0.0/14
    199.0.0.0/14
  12. Sep 22, 2006
    Route object
    AS19752 Hydro One Telecom Inc.
    RADB route object for AS19752 Hydro One Telecom Inc., maintainer MAINT-AS19752
    199.0.17.0/24
  13. Feb 12, 2010
    Route object
    AS36493 Fibernetics Corporation
    RADB route object for AS36493 Fibernetics Corporation, maintainer MAINT-AS13768
    199.0.16.0/22
  14. Feb 12, 2010
    Route object
    AS36493 Fibernetics Corporation
    RADB route object for AS36493 Fibernetics Corporation, maintainer MAINT-AS13768
    199.0.20.0/24
  15. Feb 12, 2010
    Route object
    AS36493 Fibernetics Corporation
    RADB route object for AS36493 Fibernetics Corporation, maintainer MAINT-AS13768
    199.0.26.0/23
  16. Feb 12, 2010
    Route object
    AS36493 Fibernetics Corporation
    RADB route object for AS36493 Fibernetics Corporation, maintainer MAINT-AS13768
    199.0.28.0/24
  17. Feb 12, 2010
    Route object
    AS36493 Fibernetics Corporation
    RADB route object for AS36493 Fibernetics Corporation, maintainer MAINT-AS13768
    199.0.31.0/24
  18. Feb 18, 2010
    Route object
    AS803 Saskatchewan Telecommunications
    RADB route object for AS803 Saskatchewan Telecommunications, maintainer MAINT-AS13768
    199.0.16.0/22
  19. Feb 18, 2010
    Route object
    AS803 Saskatchewan Telecommunications
    RADB route object for AS803 Saskatchewan Telecommunications, maintainer MAINT-AS13768
    199.0.20.0/24
  20. Feb 18, 2010
    Route object
    AS803 Saskatchewan Telecommunications
    RADB route object for AS803 Saskatchewan Telecommunications, maintainer MAINT-AS13768
    199.0.26.0/23
  21. Feb 18, 2010
    Route object
    AS803 Saskatchewan Telecommunications
    RADB route object for AS803 Saskatchewan Telecommunications, maintainer MAINT-AS13768
    199.0.28.0/24
  22. Feb 18, 2010
    Route object
    AS803 Saskatchewan Telecommunications
    RADB route object for AS803 Saskatchewan Telecommunications, maintainer MAINT-AS13768
    199.0.31.0/24
  23. Oct 17, 2018
    Route object
    AS36508 digitalIPVoice, Inc
    RADB route object for AS36508 digitalIPVoice, Inc, maintainer MAINT-RR
    199.0.14.0/24
  24. May 5, 2024– today
    Announced
    AS174 Cogent Communications, LLC
    as part of 199.0.0.0/14
    199.0.0.0/14
  25. Dec 14, 2025– today
    Announced
    AS4637 Telstra Global
    Internet provider
  26. May 27, 2026
    Assigned
    RCN
    Reassigned
    199.0.0.0/18
  27. today
    Leased from
    Rackdog
    IP broker
  28. today
    Used
    Bright Data
    Proxy seller

Announcements

Less specific

Covering announcements

PrefixOriginTypeLeased fromProxy exitsHolderRPKI
199.0.0.0/14
since May 2024
AS174Internet providerIP broker Rackdog (part)31
4 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
199.0.0.0/14262,144COGENT-199-0-0Cogent Communications, LLC (COGC) · USDirect AllocationSep 8, 1993abuse@cogentco.com
└ 199.0.0.0/1816,384RACKDOG-CGNT-NET-18RCN (C11605116) · USReassignedMay 27, 2026abuse@cogentco.com
via COGENT-199-0-0

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Routing timeline

Covering aggregate above, the prefix's own history below

Summary

Routing history

Pattern
Stable
First seen
Dec 2025
Current origin since
Dec 2025 · 11 mo
Origin networks
1