12.204.192.0/20
🇺🇸CIDR
12.204.192.0/20
IP Version
IPv4
Addresses
4K
Mask
/20 (255.255.240.0)
Country
🇺🇸 United States
City
Atlanta
RIR
ARIN
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 12.204.192.0/20 | AS19957STATE-OF-TENNESSEE-NETTN - AT&T Enterprises, LLC | No ROA | — | 6/1/2026 |
Covering Prefix
5 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 12.0.0.0/8 | AS7018ATT-INTERNET4 - AT&T Enterprises, LLC | No ROA | — | 6/1/2026 |
| 12.128.0.0/9 | AS7018ATT-INTERNET4 - AT&T Enterprises, LLC | No ROA | — | 6/1/2026 |
| 12.204.200.0/24 | AS16989UTHSC - The University of Tennessee Health Science Center | No ROA | — | 6/1/2026 |
| 12.204.201.0/24 | AS19957STATE-OF-TENNESSEE-NETTN - AT&T Enterprises, LLC | No ROA | — | 6/1/2026 |
| 12.204.206.0/24 | AS19957STATE-OF-TENNESSEE-NETTN - AT&T Enterprises, LLC | No ROA | — | 6/1/2026 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/12.204.192.0/20Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/12.204.192.0/20" | jq
External Links