129.66.0.0/16
🇺🇸CIDR
129.66.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇺🇸 United States
City
Sterling
RIR
ARIN
Status
allocated
Allocated
9/5/1987
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 129.66.0.0/16 | AS3464ASC-NET - Alabama Supercomputer Authority | Valid | ARINRADB | 5/30/2026 |
Covering Prefix
2 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 129.66.48.0/20 | AS3464ASC-NET - Alabama Supercomputer Authority | Valid | — | 5/30/2026 |
| 129.66.144.0/20 | AS3464ASC-NET - Alabama Supercomputer Authority | Valid | — | 5/30/2026 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/129.66.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/129.66.0.0/16" | jq
External Links