131.215.0.0/16
🇺🇸CIDR
131.215.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇺🇸 United States
City
Pasadena
RIR
ARIN
Status
allocated
Allocated
1/19/1989
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 131.215.0.0/16 | AS31CIT - California Institute of Technology | No ROA | RADB | 5/31/2026 |
Covering Prefix
7 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 131.215.244.0/23 | AS31CIT - California Institute of Technology | No ROA | — | 5/31/2026 |
| 131.215.242.0/23 | AS31CIT - California Institute of Technology | No ROA | — | 5/31/2026 |
| 131.215.234.0/24 | AS31CIT - California Institute of Technology | No ROA | — | 5/31/2026 |
| 131.215.239.0/24 | AS31CIT - California Institute of Technology | No ROA | — | 5/31/2026 |
| 131.215.240.0/24 | AS31CIT - California Institute of Technology | No ROA | — | 5/31/2026 |
| 131.215.229.0/24 | AS31CIT - California Institute of Technology | No ROA | — | 5/31/2026 |
| 131.215.230.0/24 | AS31CIT - California Institute of Technology | No ROA | — | 5/31/2026 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/131.215.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/131.215.0.0/16" | jq
External Links