2a01:4fc0::/34 - CSL Computer Service Langenbach (AS5517)
CIDR
2a01:4fc0::/34
IP Version
IPv6
Addresses
19807Y
Mask
/34
Country
🇩🇪 Germany
City
Düsseldorf (Stadtbezirk 04)
RIR
RIPE NCC
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
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| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 2a01:4fc0::/34 | AS5517 CSL CSL Computer Service Langenbach GmbH | Valid | RIPE | 2026-10-11 |
Related Prefixes
Geolocation
Country🇩🇪GermanyDE
RegionNorth Rhine-Westphalia
CityDüsseldorf (Stadtbezirk 04)
Coordinates51.2392, 6.7249 ↗
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/2a01:4fc0::/34Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/2a01:4fc0::/34" | jq
External Links