144.121.0.0/16
🇺🇸CIDR
144.121.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇺🇸 United States
City
Springfield (Metro Center)
RIR
ARIN
Status
allocated
Allocated
4/29/2016
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 144.121.0.0/16 | AS46887CROWNCASTLE-AS46887 - Crown Castle Fiber LLC | No ROA | RADB | 5/31/2026 |
Covering Prefix
77 less-specific announcementsIRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS46887 | RADB | MAINT-AS27506 | 11/13/2023 |
Geolocation
Country🇺🇸United StatesUS
RegionMassachusetts
CitySpringfield (Metro Center)
Coordinates42.1017, -72.5874 ↗
API
Open https://api.ipctl.io/v1/prefix/144.121.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/144.121.0.0/16" | jq
External Links