asn.dev

Autonomous system

AS57377 LONDON-BOROUGH-OF-MERTON

Unclassified RIPE

IPv4 addresses 256 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

London Borough of Merton

United Kingdom · AI-generated

government municipal london

The AS handle LONDON-BOROUGH-OF-MERTON is held by London Borough of Merton.

What it's used for

  • The address space carries municipal network infrastructure, identified by the netname LBMERTON-NET and registrant LONDON BOROUGH OF MERTON.
  • The inventory consists of 256 IPv4 addresses within a single prefix, 91.240.24.0/24, with 0 IPv6 prefixes announced.
  • With only 1 observed neighbour, the routing profile indicates a stub network connected to a single upstream provider, typical for a local government entity's internal or service network.
  • Traffic from this AS represents the digital operations of the Merton Council, including administrative services, public-facing web endpoints, and internal municipal communications.

Notable

  • The registrant LONDON BOROUGH OF MERTON matches the AS holder exactly, confirming direct ownership of the address space.
  • The address inventory is compact, consisting of a single /24 block, which aligns with the scale of a local authority's network requirements rather than a large-scale ISP or hosting provider.
  • The AS was first seen in RIS on 2014-03-28, indicating it has been active for over a decade.

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
AS60187London Grid for Learning Trust61

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-22, 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 · 256 addresses IPv6 0 prefixes

CountryNamePrefixes
GBUnited Kingdom1

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS57377
Registry name
LONDON-BOROUGH-OF-MERTON
Registrant
AS5089-MNT
Abuse contact
ipam@virginmedia.co.uk
Registered
2012-07-12
Last changed
2018-09-04
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 1 with no ROA
ROAs
0 authorising AS57377
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
1 naming AS57377

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 2026-10-23. 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