AS51100 Kier Ltd 🇬🇧 GB
Announcing 7 prefixes, seen at the RIS collectors.
IPv4 prefixes
7
2,560 (10 × /24)
IPv6 prefixes
0
-
Upstreams
1
transit providers observed
Peers
0
settlement-free adjacencies
Downstreams
0
transit customers observed
Customer cone
0
ASes reachable through it
Registry and operator data
- AS number
- AS51100
- Name
- Kier Ltd
- Organisation
- Kier Ltd
- Country
- 🇬🇧 GB
- RIR
- RIPENCC
- Allocated
- 2018-01-04
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
7 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 91.195.112.0/23 v4 | no ROA | 41 | 37721127351100 | 2026-09-18 |
| 91.195.112.0/24 v4 | no ROA | 42 | 3333127351100 | 2026-09-18 |
| 91.195.113.0/24 v4 | no ROA | 42 | 3333127351100 | 2026-09-18 |
| 185.239.164.0/23 v4 | no ROA | 41 | 37721127351100 | 2026-09-18 |
| 185.239.166.0/23 v4 | no ROA | 41 | 37721127351100 | 2026-09-18 |
| 185.239.166.0/24 v4 | no ROA | 41 | 37721127351100 | 2026-09-18 |
| 185.239.167.0/24 v4 | no ROA | 42 | 3333127351100 | 2026-09-18 |