158.121.0.0/16
🇺🇸CIDR
158.121.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇺🇸 United States
City
Boston (Town of Canton)
RIR
ARIN
Status
allocated
Allocated
2/28/1992
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 158.121.0.0/16 | AS1968UMASSNET-AS1968 - UMASSNET | No ROA | RADB | 5/31/2026 |
Origin ASN
AS1968
UMASSNET-AS1968 - UMASSNET
Geolocation
Country🇺🇸United StatesUS
RegionMassachusetts
CityBoston (Town of Canton)
Coordinates42.3147, -71.0377 ↗
API
Open https://api.ipctl.io/v1/prefix/158.121.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/158.121.0.0/16" | jq
External Links