Data as of Nov 3, 2026

208.3.0.0/20

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 Mar 13, 1996

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

Name	Parent	In 208.3.0.0/20	/24s
Bright Data		4,096100%	16

Leased from

Owners leasing their own space

Name	In 208.3.0.0/20	/24s
Cogent Communications, LLC	4,096100%	16

Lineage

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

208.3.0.0/20

From the registry to its use

Mar 13, 1996
Registry record
Cogent Communications, LLC
Direct Allocation (legacy, pre-1997)
208.0.0.0 - 208.35.255.255
May 31, 2011
Route object
AS21766 BEN Lomand Rural Telephone Cooperative, Inc.
RADB route object for AS21766 BEN Lomand Rural Telephone Cooperative, Inc., maintainer MAINT-AS2711
208.3.14.0/24
Aug 16, 2025– Dec 13, 2025
Announced
AS6079 RCN
Internet provider
Aug 26, 2025
Route object
Rackdog
RADB route object for AS6079 RCN, maintainer MAINT-AS398465
Dec 8, 2025
Route object
AS4637 Telstra Global
ARIN route object for AS4637 Telstra Global, maintainer MNT-COGC
Dec 14, 2025– Nov 2, 2026
Announced
AS4637 Telstra Global
Internet provider
May 27, 2026
Assigned
RCN
Reassigned
208.3.0.0/18
Sep 18, 2026– Nov 2, 2026
Announced
AS174 Cogent Communications, LLC
as part of 208.0.0.0/11
208.0.0.0/11
today
Leased from
Rackdog
IP broker
today
Used
Bright Data
Proxy seller

Announcements

Less specific

Covering announcements

Prefix	Origin	Type	Anonymizer addresses	Proxy exits	Holder	RPKI
208.0.0.0/11	AS174	Internet provider	32,7681.6%ISP proxy	602 175 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.

Range	Addresses	Netname	Holder	Type	Created	Abuse contact
208.0.0.0 - 208.35.255.255	2,359,296	COGC	Cogent Communications, LLC (COGC) · US	Direct Allocation	Mar 13, 1996	[email protected]
└ 208.3.0.0/18	16,384	RACKDOG-CGNT-NET-100	RCN (C11605308) · US	Reassigned	May 27, 2026	[email protected] 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.

Network & registry

Announcement Routing history RPKI & IRR Whois & abuse

IPv4 market

Holder

Holder in the market →

Organization: Cogent Communications, LLC
Handle: COGC
Range: 208.0.0.0 - 208.35.255.255
Registration type: Direct Allocation
Record created: Mar 13, 1996
Legacy: yes

Origin network

AS4637

Name: Telstra Global
Type: Internet provider
Registered: Oct 30, 1995
Domain: telstrainternational.com
Website: www.telstrainternational.com
Industry: Internet Service Provider (ISP)
Spamhaus ASN-DROP: not listed

IRR

Route objects on the exact prefix

Origin	Registry	Description	Maintainer	Modified
AS4637	ARIN	Route Registered for Cogent Communications Customer - Rackdog, LLC	MNT-COGC	Dec 23, 2025
AS6079 not the origin	RADB		MAINT-AS398465	Sep 11, 2025

IRR inside

Route objects inside

Prefix	Origin	Registry	Description	Maintainer	Modified
208.3.14.0/24	AS21766	RADB	Proxy-registered route object	MAINT-AS2711	Nov 13, 2023

208.3.0.0/20

Path

Operators, sellers and brokers

Proxy providers

Owners leasing their own space

Lineage

From the registry to its use

Announcements

Covering announcements

Registrations in this block

Network & registry

Holder

AS4637

Covering aggregate above, the prefix's own history below

Routing history

History

Route objects on the exact prefix

Route objects inside

Registration for this announcement

Abuse contact