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Data as of Nov 8, 2026

154.21.13.0/24

Anonymizer · ISP proxy

Port 80 · reallocated from Cogent Communications, LLC

Announcement
this exact prefix
No RPKI
Announced by
AS400211
Type
ISP proxy
Risk
90 / 100 · Critical
IPv4 market

Path

1 · Holder
Cogent Communications, LLC
record created Feb 5, 1992 · reallocated to Port 80 Nov 8, 2023
2 · Leased from
Cogent Communications, LLC
its owner, directly
3 · Announced by
AS400211 Port 80
since Jan 2022 · 4.8 yr ago
4 · Use
Proxy providersnamed Bright Data
ISP proxy

Operators, sellers and brokers

Proxy providers

NameParentIn 154.21.13.0/24/24s
Bright Data
256100%
1
Leased from

Owners leasing their own space

NameIn 154.21.13.0/24/24s
Cogent Communications, LLC
256100%
1

Lineage

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

154.21.13.0/24

From the registry to its use

  1. Feb 5, 1992
    Registry record
    Cogent Communications, LLC
    Direct Allocation (legacy, pre-1997)
    154.21.0.0/16
  2. Sep 10, 2018– today
    Announced
    AS174 Cogent Communications, LLC
    as part of 154.21.0.0/16
    154.21.0.0/16
  3. Oct 4, 2018– Nov 15, 2019
    Announced
    AS174 Cogent Communications, LLC
    Internet provider
  4. May 26, 2020– Feb 13, 2021
    Announced
    AS3356 Level 3 Parent, LLC
    Internet provider
  5. May 28, 2020
    Route object
    AS14713 Hosted Backbone
    RADB route object for AS14713 Hosted Backbone, maintainer MAINT-AS174
  6. Feb 2, 2021– Feb 8, 2022
    Announced
    AS701 Verizon Business
    Internet provider
  7. Jan 28, 2022– today
    Announced
    AS400211 Port 80
    Internet provider
  8. Nov 5, 2023
    Route object
    AS400211 Port 80
    RADB route object for AS400211 Port 80, maintainer MAINT-AS14713
  9. Nov 8, 2023
    Reallocated
    Port 80
    Reallocated
    154.21.13.0/24
  10. Jul 4, 2024– Jul 27, 2024
    Announced
    AS14713 Hosted Backbone
    Hosting
  11. Jun 24, 2025
    Route object
    AS22773 Cox Communications Inc.
    RADB route object for AS22773 Cox Communications Inc., maintainer MAINT-AS22773
  12. today
    Used
    Bright Data
    Proxy seller

Announcements

Less specific

Covering announcements

PrefixOriginTypeAnonymizer addressesOperatorProxy exitsHolderRPKI
154.21.0.0/16
since Sep 2018
AS174Internet provider1,2802.0%ISP proxy, VPNProxy providersoperated by High ProxiesVPN servicesoperated by TorGuard291
45 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
154.21.0.0/1665,536COGENT-154-21-16Cogent Communications, LLC (COGC) · USDirect AllocationFeb 5, 1992abuse@cogentco.com
└ 154.21.13.0/24256PORT80-CGNT-NET-1Hosted Backbone (HBL-35) · USReallocatedNov 1, 2021eweiner@hostedbackbone.net
└ 154.21.13.0/24256PORT80-CGNT-NET-1Port 80 (PISL-23) · USReallocatedNov 8, 2023eweiner@hostedbackbone.net

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
IPv4 market

Holder

Holder in the market →
Organization
Cogent Communications, LLC
Handle
COGC
Range
154.21.0.0/16
Registration type
Direct Allocation
Record created
Feb 5, 1992
Legacy
yes
Reallocated to
Port 80 (PISL-23)
Reallocated range
154.21.13.0/24
Reallocated
Nov 8, 2023
Origin network

AS400211

US
Name
Port 80
Type
Internet provider
Registered
Nov 9, 2021
Domain
port80.host
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed