137.251.0.0/16
🇩🇪IPv4RIPENCCassignedAS5501Fraunhofer-Cluster-BW Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. RPKI Valid
CIDR
137.251.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇩🇪 Germany
City
Karlsruhe (Oststadt)
RIR
RIPENCC
Status
assigned
Allocated
1/20/1990
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 137.251.0.0/16 | AS5501Fraunhofer-Cluster-BW Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | Valid | RIPE | 5/31/2026 |
Origin ASN
AS5501
Fraunhofer-Cluster-BW Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
Geolocation
Country🇩🇪GermanyDE
RegionBaden-Württemberg
CityKarlsruhe (Oststadt)
Coordinates49.0155, 8.4258 ↗
Abuse Contact
API
Open https://api.ipctl.io/v1/prefix/137.251.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/137.251.0.0/16" | jq
External Links