asn.dev

Autonomous system

AS5552 DIALNET-UK

Unclassified RIPE

IPv4 addresses 24.58K 8 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly GB
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Redcentric Solutions Ltd

United Kingdom · AI-generated

enterprise isp legacy

DIALNET-UK is held by Redcentric Solutions Ltd, a UK managed services provider headquartered in Harrogate. The handle is a survivor of the network's dial-up-era origins; the business today sells managed connectivity, cloud and hosting to enterprises and the public sector.

What it's used for

  • Managed WAN and internet access for Redcentric's business and public-sector customers, alongside addressing for its own data centres and hosted platforms.
  • Not a consumer broadband network despite the DIALNET name.

Notable

  • Redcentric grew largely by acquisition (it was demerged from Redstone in 2013 and absorbed several other UK managed-service businesses), so the AS carries address space and customer estates inherited from predecessor networks.
  • The DIALNET-UK handle is the clearest evidence of the network's lineage: an early UK dial-up ISP identity that survived every rebrand and acquisition on the way to today's managed-services business.

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 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS13009Redcentric Solutions Ltd211

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-18, 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 8 prefixes · 24.58K addresses IPv6 1 prefixes

CountryNamePrefixes
GBUnited Kingdom9

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS5552
Registry name
DIALNET-UK
Registrant
mnt-uk-redcentric-1
Abuse contact
abuse@redcentricplc.com
Registered
1970-01-01
Last changed
2020-07-20
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
75% valid · 3 valid, 1 with no ROA
ROAs
3 authorising AS5552
ASPA
no ASPA record
IRR
100% registered · 4 of 4 announcements
Route objects
6 naming AS5552

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 1,784 prefixes, as published 2026-10-19. 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