192.91.244.0/23 - CERN European Organization For Nuclear Research (AS513)
CIDR
192.91.244.0/23
IP Version
IPv4
Addresses
512
Mask
/23 (255.255.254.0)
Country
🇨🇭 Switzerland
City
Geneva
RIR
RIPE NCC
Status
assigned
Allocated
1991-01-18
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 192.91.244.0/23 | AS513 CERN CERN - European Organization for Nuclear Research | Valid | RIPE | 2026-10-11 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 192.91.244.0/23 | AS513 | /23 | ripe |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS513 | RIPE | CERN-MNT | 2015-08-12 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 192.91.244.0/24 | 🇨🇭CH | assigned | |
| 192.91.245.0/24 | 🇨🇭CH | assigned |
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/192.91.244.0/23Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/192.91.244.0/23" | jq
External Links