158.72.0.0/16
🇺🇸CIDR
158.72.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇺🇸 United States
City
Rockville
RIR
ARIN
Status
allocated
Allocated
2/15/1992
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 158.72.0.0/16 | AS26810HHSNET-NOC-ASN - U.S. Dept. of Health and Human Services | No ROA | — | 5/30/2026 |
Covering Prefix
1 less-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 158.72.139.0/24 | AS26810HHSNET-NOC-ASN - U.S. Dept. of Health and Human Services | No ROA | — | 5/30/2026 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/158.72.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/158.72.0.0/16" | jq
External Links