161.104.78.0/23 - Zef Zefirius (AS208261)
CIDR
161.104.78.0/23
IP Version
IPv4
Addresses
512
Mask
/23 (255.255.254.0)
Country
🇨🇷 Costa Rica
City
San Vicente (Los Colegios)
RIR
RIPE NCC
Status
assigned
Allocated
1992-06-24
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
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| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 161.104.78.0/23 | AS208261 zef Zefirius SRL | Valid | RIPE | 2026-10-11 |
Origin ASN
AS208261
zef Zefirius SRL
Geolocation
Country🇨🇷Costa RicaCR
RegionSan José
CitySan Vicente (Los Colegios)
Coordinates9.9575, -84.0572 ↗
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/161.104.78.0/23Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/161.104.78.0/23" | jq
External Links