Autonomous system profile

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

AS25577

Announcement observedRIPE NCC

MAINFRAME & CYBERNETIC SYSTEMS LIMITED · C4L-AS

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

Last active10/29/2026, 01:59:28Snapshot expired

View network topology RDAP registration

ASN: AS25577
Registration country: United Kingdom
Name: MAINFRAME & CYBERNETIC SYSTEMS LIMITED
Abbreviation: C4L-AS
Registration date: 1/15/2003, 11:46:06
Status: Announcement observed
RIR: RIPE NCC

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
109.104.100.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
109.104.105.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
109.104.112.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
109.104.114.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
109.104.116.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
109.104.120.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
109.104.122.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
109.104.124.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
109.104.96.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
109.104.98.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
109.68.64.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
109.68.68.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
178.251.233.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
178.251.238.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/26/2026, 16:00:00	✓	×	Currently valid
178.251.239.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
185.5.88.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
31.3.208.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
31.3.211.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
31.3.212.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
31.3.221.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
31.3.223.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
37.58.24.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
37.58.29.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
5.133.184.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
5.133.188.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
5.133.191.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
77.73.11.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
77.73.15.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
78.40.56.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
78.40.61.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
81.27.64.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
81.27.66.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
81.27.72.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
81.27.75.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
81.27.76.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
81.27.80.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
81.27.81.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
81.27.87.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
81.27.88.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
81.27.88.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
81.27.92.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
81.27.92.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
81.27.94.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
81.27.95.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
82.197.72.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
84.45.16.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
84.45.32.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
84.45.64.0/18BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
84.45.75.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid
84.45.8.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/28/2026, 16:00:00	✓	×	Currently valid

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

Registration and sources

Organization: MAINFRAME & CYBERNETIC SYSTEMS LIMITED
RIR: RIPE NCC
Registration country: United Kingdom
Registration date: 1/15/2003, 11:46:06
Abuse contact: frank@bec.uk

Snapshot trend

10/29/2026, 01:59:2853 v41 v658 Upstream · 35 Uncertain

10/1/2026, 18:17:3053 v41 v656 Upstream · 36 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 · cha-la-bgp-observations