81.27.88.0/22
🇬🇧CIDR
81.27.88.0/22
IP Version
IPv4
Addresses
1K
Mask
/22 (255.255.252.0)
Country
🇬🇧 United Kingdom
City
London
RIR
RIPENCC
Status
allocated
Allocated
4/11/2002
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 81.27.88.0/22 | AS25577C4L-AS MAINFRAME & CYBERNETIC SYSTEMS LIMITED | No ROA | RIPE | 6/1/2026 |
Covering Prefix
1 less-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 81.27.88.0/21 | AS25577C4L-AS MAINFRAME & CYBERNETIC SYSTEMS LIMITED | No ROA | — | 6/1/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS25577 | RIPE | c4l-mnt | 1/2/2026 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 81.27.89.128/27 | 🇬🇧GB | assigned | |
| 81.27.89.224/27 | 🇬🇧GB | assigned | |
| 81.27.89.48/28 | 🇬🇧GB | assigned | |
| 81.27.89.192/28 | 🇬🇧GB | assigned | |
| 81.27.89.160/28 | 🇬🇧GB | assigned | |
| 81.27.90.56/29 | 🇬🇧GB | assigned | |
| 81.27.91.32/29 | 🇬🇧GB | assigned |
Geolocation
Abuse Contact
API
Open https://api.ipctl.io/v1/prefix/81.27.88.0/22Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/81.27.88.0/22" | jq
External Links