81.17.56.0/21 - LEASEWEB UK LON 11 Leaseweb UK Limited (AS205544)
CIDR
81.17.56.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇬🇧 United Kingdom
City
London
RIR
RIPE NCC
Status
allocated
Allocated
2002-09-04
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 81.17.56.0/21 | AS205544 LEASEWEB-UK-LON-11 Leaseweb UK Limited | Valid | RIPE | 2026-10-11 |
More-Specific Announcements
5 more-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 81.17.56.0/22 | AS205544 LEASEWEB-UK-LON-11 Leaseweb UK Limited | Valid | - | 2026-10-11 |
| 81.17.60.0/24 | AS205544 LEASEWEB-UK-LON-11 Leaseweb UK Limited | Valid | - | 2026-10-11 |
| 81.17.61.0/24 | AS205544 LEASEWEB-UK-LON-11 Leaseweb UK Limited | Valid | - | 2026-10-11 |
| 81.17.62.0/24 | AS205544 LEASEWEB-UK-LON-11 Leaseweb UK Limited | Valid | - | 2026-10-11 |
| 81.17.63.0/24 | AS205544 LEASEWEB-UK-LON-11 Leaseweb UK Limited | Valid | - | 2026-10-11 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 81.17.56.0/21 | AS205544 | /24 | ripe |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS205544 | RIPE | leaseweb-uk-mnt | 2018-07-10 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 81.17.57.32/27 | 🇬🇧GB | assigned |
Related Prefixes
More prefixes of AS205544
All prefixes of AS205544 →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/81.17.56.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/81.17.56.0/21" | jq
External Links