171.23.0.0/16
🇳🇴CIDR
171.23.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇳🇴 Norway
City
Oslo (Gamle Oslo District)
RIR
RIPENCC
Status
assigned
Allocated
4/22/1994
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 171.23.0.0/16 | AS21331OKDN-AS Oslo kommune, Utviklings- og kompetanseetaten | No ROA | RIPE | 5/31/2026 |
Covering Prefix
1 less-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 171.23.128.0/17 | AS21331OKDN-AS Oslo kommune, Utviklings- og kompetanseetaten | No ROA | — | 5/31/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS21331 | RIPE | OKDN-MNT | 11/21/2001 |
Geolocation
Abuse Contact
API
Open https://api.ipctl.io/v1/prefix/171.23.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/171.23.0.0/16" | jq
External Links