144.121.4.0/24
🇺🇸CIDR
144.121.4.0/24
IP Version
IPv4
Addresses
256
Mask
/24 (255.255.255.0)
Country
🇺🇸 United States
City
Providence (Downtown Providence)
RIR
ARIN
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 144.121.4.0/24 | AS54573GTECH-PRODUCTION - Brightstar Global Solutions Corporation | No ROA | RADB | 5/31/2026 |
Covering Prefix
3 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 144.121.0.0/16 | AS46887CROWNCASTLE-AS46887 - Crown Castle Fiber LLC | No ROA | — | 5/31/2026 |
| 144.121.0.0/18 | AS46887CROWNCASTLE-AS46887 - Crown Castle Fiber LLC | No ROA | — | 5/31/2026 |
| 144.121.4.0/22 | AS46887CROWNCASTLE-AS46887 - Crown Castle Fiber LLC | No ROA | — | 5/31/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS54573 | RADB | MAINT-AS27506 | 9/3/2025 |
Geolocation
Country🇺🇸United StatesUS
RegionRhode Island
CityProvidence (Downtown Providence)
Coordinates41.8265, -71.4149 ↗
API
Open https://api.ipctl.io/v1/prefix/144.121.4.0/24Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/144.121.4.0/24" | jq
External Links