77.72.0.0/21
🇬🇧CIDR
77.72.0.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇬🇧 United Kingdom
City
London
RIR
RIPENCC
Status
allocated
Allocated
1/15/2007
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 77.72.0.0/21 | AS12488KRYSTAL Krystal Hosting Ltd | No ROA | RIPE | 5/30/2026 |
Covering Prefix
2 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 77.72.1.0/24 | AS12488KRYSTAL Krystal Hosting Ltd | No ROA | — | 5/30/2026 |
| 77.72.2.0/24 | AS12488KRYSTAL Krystal Hosting Ltd | No ROA | — | 5/30/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS12488 | RIPE | KRYSTAL-MNT | 6/11/2014 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 77.72.4.0/23 | 🇬🇧GB | assigned | |
| 77.72.6.0/23 | 🇬🇧GB | assigned | |
| 77.72.2.0/23 | 🇬🇧GB | assigned | |
| 77.72.0.0/23 | 🇬🇧GB | assigned |
Origin ASN
AS12488
KRYSTAL Krystal Hosting Ltd
Geolocation
Abuse Contact
API
Open https://api.ipctl.io/v1/prefix/77.72.0.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/77.72.0.0/21" | jq
External Links