31.11.56.0/21
🇳🇱CIDR
31.11.56.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇳🇱 The Netherlands
City
Amsterdam
RIR
RIPENCC
Status
allocated
Allocated
4/14/2011
Announced BGP Routes
0 of 0 routesRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| This prefix is not currently announced in BGP. See covering prefix below. | ||||
Covering Prefix
1 less-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 31.11.56.0/23 | AS13205British Telecommunications PLC | No ROA | — | 5/31/2026 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 31.11.56.0/23 | AS13205 | 🇳🇱NL | assigned |
| 31.11.58.0/24 | 🇳🇱NL | assigned |
Origin ASN
AS13205
British Telecommunications PLC
Geolocation
Abuse Contact
API
Open https://api.ipctl.io/v1/prefix/31.11.56.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/31.11.56.0/21" | jq
External Links