205.172.168.0/22
🇺🇸CIDR
205.172.168.0/22
IP Version
IPv4
Addresses
1K
Mask
/22 (255.255.252.0)
Country
🇺🇸 United States
City
Amherst (Amherst Center)
RIR
ARIN
Status
allocated
Allocated
4/25/1995
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 205.172.168.0/22 | AS1929UMASSNET-NET - University of Massachusetts - AMHERST | No ROA | RADB | 5/31/2026 |
Covering Prefix
1 less-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 205.172.169.0/24 | AS1929UMASSNET-NET - University of Massachusetts - AMHERST | No ROA | — | 5/31/2026 |
Geolocation
Country🇺🇸United StatesUS
RegionMassachusetts
CityAmherst (Amherst Center)
Coordinates42.3942, -72.5268 ↗
API
Open https://api.ipctl.io/v1/prefix/205.172.168.0/22Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/205.172.168.0/22" | jq
External Links