12.144.20.0/23
🇺🇸CIDR
12.144.20.0/23
IP Version
IPv4
Addresses
512
Mask
/23 (255.255.254.0)
Country
🇺🇸 United States
City
Philadelphia (Center City West)
RIR
ARIN
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 12.144.20.0/23 | AS27329DUANE-MORRIS-PHILADELPHIA - Duane Morris | No ROA | — | 6/1/2026 |
Covering Prefix
2 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 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS23388 | RADB | MAINT-AS1828 | 11/13/2023 |
Geolocation
Country🇺🇸United StatesUS
RegionPennsylvania
CityPhiladelphia (Center City West)
Coordinates39.9522, -75.1693 ↗
API
Open https://api.ipctl.io/v1/prefix/12.144.20.0/23Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/12.144.20.0/23" | jq
External Links