Autonomous system
AS212465 COMCAST-UK-2
Unclassified RIPE
Summary
Comcast
voip business telecom comcast
COMCAST-UK-2 is held by Comcast International Holdings UK Limited.
What it's used for
- The address space carries VoIP and business traffic, as indicated by the netnames
COMCAST-VOIP-4andCOMCAST-B2-3associated with the announced prefixes. - The AS announces 41,984 IPv4 addresses across 6 prefixes and 7 IPv6 prefixes, with only 3 observed neighbours, indicating a role focused on specific service delivery rather than general transit.
- Traffic from this AS consists of VoIP media and signalling, as well as business backhaul, consistent with Comcast's telecommunications operations.
Notable
- The registrants for the largest prefixes are Comcast Cable Communications, LLC, which aligns with the announcer Comcast International Holdings UK Limited, a subsidiary of Comcast.
- The address inventory is concentrated in the 184.120.0.0/18 block and its subdivisions, along with a smaller 184.124.0.0/22 block, reflecting a segmented corporate estate.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-31, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 6 prefixes · 41.98K addresses IPv6 7 prefixes
| Country | Name | Prefixes |
|---|---|---|
| GB | United Kingdom | 13 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS212465- Registry name
- COMCAST-UK-2
- Registrant
- Comcast International Holdings UK Limited
- Abuse contact
- CNIPEO-Ip-registration@cable.comcast.com
- Registered
- 2020-10-22
- Last changed
- 2024-12-03
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 80% valid · 16 valid, 4 with no ROA
- ROAs
- 28 authorising AS212465
- ASPA
- no ASPA record
- IRR
- 80% registered · 16 of 20 announcements
- Route objects
- 17 naming AS212465
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 447 networks and 1,845 prefixes, as published 2026-10-31. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere