AS25577 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 🇬🇧 GB
Announcing 53 prefixes, seen at the RIS collectors.
IPv4 prefixes
52
54,784 (214 × /24)
IPv6 prefixes
1
1 × /32
Upstreams
4
transit providers observed
Peers
17
settlement-free adjacencies
Downstreams
10
transit customers observed
Customer cone
18
ASes reachable through it
Registry and operator data
- AS number
- AS25577
- Name
- MAINFRAME & CYBERNETIC SYSTEMS LIMITED
- Organisation
- MAINFRAME & CYBERNETIC SYSTEMS LIMITED
- Country
- 🇬🇧 GB
- RIR
- RIPENCC
- Allocated
- 2003-01-15
- Network type
- NSP
- Traffic levels
- 10-20Gbps
- Scope
- Europe
- Peering policy
- Selective
- IRR as-set
- AS-C4L
- Website
- http://bec.uk
- Looking glass
- https://lg.as25577.net
- PeeringDB
- net/1540
- Exchanges
- 3
- Facilities
- 25
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
1 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 2001:9d8::/32 v6 | RPKI valid | 33 | 3772125577 | 2026-09-18 |