Autonomous system profile

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

AS51491

Announcement observedRIPE NCC

SysGroup plc · SYSGROUP-WALES

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

Last active10/4/2026, 17:54:59Snapshot expired

View network topology RDAP registration

ASN: AS51491
Registration country: United Kingdom
Name: SysGroup plc
Abbreviation: SYSGROUP-WALES
Registration date: 12/20/2016, 08:37:55
Status: Announcement observed
RIR: RIPE NCC

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
185.33.184.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/20/2026, 08:00:00	10/30/2026, 08:00:00	✓	×	Currently valid
185.33.186.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/20/2026, 08:00:00	10/30/2026, 08:00:00	✓	×	Currently valid

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

Registration and sources

Organization: SysGroup plc
RIR: RIPE NCC
Registration country: United Kingdom
Registration date: 12/20/2016, 08:37:55
Abuse contact: abuse@sysgroup.com

Snapshot trend

10/4/2026, 17:54:592 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 · iana-rdap-asn-bootstrap · rir-rdap-asn