asn.dev

Autonomous system

AS51905 CWCS-VM CompuWeb Communications Services Ltd

Unclassified RIPE

IPv4 addresses 2.05K 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly GB
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Compuweb Communications Services Limited

United Kingdom · AI-generated

hosting business uk

The AS handle CWCS-VM is held by Compuweb Communications Services Limited.

What it's used for

  • The space carries business and static connectivity, evidenced by the reverse DNS record 254.117-19-84.static.virginmediabusiness.co.uk and the netname COMPUWEB-COMMUNICATIONS-SERVICES-LTD.
  • The AS announces 2048 IPv4 addresses across 1 prefix with 1 observed neighbour, indicating a small-scale access or business network rather than a transit provider.
  • Traffic from this AS consists of web and API endpoints for the company's managed hosting, dedicated server, and colocation services.

Notable

  • The registrant Virgin Media Network Management Centre; Abuse-C Role differs from the announcer, reflecting the historical relationship between Compuweb and Virgin Media.
  • Compuweb Communications Services Limited is a UK-based provider offering fully managed hosting, dedicated servers, and cloud services from a Tier 3 data centre in Nottingham.
  • The address inventory consists of a single /21 block, 84.19.112.0/21, with no IPv6 prefixes announced.

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

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS15510Compuweb Communications Services Limited522

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-21, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 1 prefixes · 2.05K addresses IPv6 0 prefixes

CountryNamePrefixes
GBUnited Kingdom1

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS51905
Registry name
CWCS-VM
Registrant
COMPCOMM-MNT
Abuse contact
abuse@cwcs.co.uk
Registered
2010-11-26
Last changed
2019-08-08
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 9 valid, 0 with no ROA
ROAs
2 authorising AS51905
ASPA
no ASPA record
IRR
100% registered · 9 of 9 announcements
Route objects
1 naming AS51905

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: 442 networks and 1,779 prefixes, as published 2026-10-22. 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

Cross-check