Autonomous system profile

Review registration details, announced prefixes, network relationships and historical snapshots.

AS51572

Announcement observedRIPE NCC

CERULEAN Cerulean Solutions Limited · CERULEAN

This profile is assembled from CHA.LA's normalized registration, routing and observation snapshots.

Last active10/4/2026, 17:57:59Snapshot expired

View network topology RDAP registration

ASN: AS51572
Registration country: United Kingdom
Name: CERULEAN Cerulean Solutions Limited
Abbreviation: CERULEAN
Registration date: 9/30/2010, 10:13:37
Status: Announcement observed
RIR: RIPE NCC

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
46.16.80.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/20/2026, 08:00:00	10/4/2026, 08:00:00	✓	×	Currently valid

BGP prefixes have no geographic country; the column is marked not applicable.

Registration and sources

Organization: CERULEAN Cerulean Solutions Limited
RIR: RIPE NCC
Registration country: United Kingdom
Registration date: 9/30/2010, 10:13:37
Abuse contact: abuse@cerulean.co.uk

Snapshot trend

10/4/2026, 17:57:591 v40 v61 Upstream · 0 Uncertain

ASN route snapshotThis page reads collected ASN, prefix, relationship and history data. External interfaces are used for initial collection and scheduled refreshes.Source keys: cha-la-external-routing · rir-rdap-asn · iana-rdap-asn-bootstrap