81.201.128.0/20 - UKFAST ANS ACADEMY LIMITED (AS61323)
CIDR
81.201.128.0/20
IP Version
IPv4
Addresses
4K
Mask
/20 (255.255.240.0)
Country
🇬🇧 United Kingdom
City
Manchester
RIR
RIPE NCC
Status
allocated
Allocated
2002-10-11
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 81.201.128.0/20 | AS61323 UKFAST ANS ACADEMY LIMITED | Valid | RIPE | 2026-10-11 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 81.201.128.0/20 | AS61323 | /20 | ripe |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS61323 | RIPE | UKFAST-MNT | 2019-06-20 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 81.201.128.0/24 | 🇬🇧GB | assigned | |
| 81.201.129.0/24 | 🇬🇧GB | assigned | |
| 81.201.130.0/24 | 🇬🇧GB | assigned | |
| 81.201.131.0/24 | 🇬🇧GB | assigned | |
| 81.201.132.0/24 | 🇬🇧GB | assigned | |
| 81.201.133.0/24 | 🇬🇧GB | assigned | |
| 81.201.134.0/23 | 🇬🇧GB | assigned | |
| 81.201.136.0/27 | 🇬🇧GB | assigned | |
| 81.201.136.32/28 | 🇬🇧GB | assigned | |
| 81.201.136.48/29 | 🇬🇧GB | assigned | |
| 81.201.136.128/28 | 🇬🇧GB | assigned | |
| 81.201.136.144/28 | 🇬🇧GB | assigned | |
| 81.201.136.192/27 | 🇬🇧GB | assigned | |
| 81.201.136.248/29 | 🇬🇧GB | assigned | |
| 81.201.137.0/24 | 🇬🇧GB | assigned | |
| 81.201.138.0/24 | 🇬🇧GB | assigned | |
| 81.201.139.0/24 | 🇬🇧GB | assigned | |
| 81.201.140.0/24 | 🇬🇧GB | assigned | |
| 81.201.141.0/24 | 🇬🇧GB | assigned | |
| 81.201.142.0/24 | 🇬🇧GB | assigned | |
| 81.201.143.0/24 | 🇬🇧GB | assigned |
Origin ASN
AS61323
UKFAST ANS ACADEMY LIMITED
Related Prefixes
Geolocation
Abuse Contact
Learn more
- RPKI and ROAs explainedWhat RPKI valid, invalid and no ROA mean
- RPKI validatorCheck ROA coverage for any prefix or ASN
- What is BGP?How prefixes are announced and routed
- More-specific prefixesGlossary: covering and more-specific routes
- IPv4 transfers in the RIPE NCC regionWho bought and sold address space recently
API
Open https://api.ipctl.io/v1/prefix/81.201.128.0/20Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/81.201.128.0/20" | jq
External Links