66.4.18.0/23
🇺🇸CIDR
66.4.18.0/23
IP Version
IPv4
Addresses
512
Mask
/23 (255.255.254.0)
Country
🇺🇸 United States
City
Nashville (North Capitol)
RIR
ARIN
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 66.4.18.0/23 | AS19957STATE-OF-TENNESSEE-NETTN - AT&T Enterprises, LLC | No ROA | — | 5/31/2026 |
Covering Prefix
3 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 66.4.0.0/16 | AS19957STATE-OF-TENNESSEE-NETTN - AT&T Enterprises, LLC | No ROA | — | 5/31/2026 |
| 66.4.18.0/24 | AS19957STATE-OF-TENNESSEE-NETTN - AT&T Enterprises, LLC | No ROA | — | 5/31/2026 |
| 66.4.19.0/24 | AS19957STATE-OF-TENNESSEE-NETTN - AT&T Enterprises, LLC | No ROA | — | 5/31/2026 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/66.4.18.0/23Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/66.4.18.0/23" | jq
External Links