137.9.128.0/17
🇺🇸CIDR
137.9.128.0/17
IP Version
IPv4
Addresses
32.7K
Mask
/17 (255.255.128.0)
Country
🇺🇸 United States
City
Montgomery
RIR
ARIN
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 137.9.128.0/17 | AS56DNIC-AS-00056 - United States Department of Defense (DoD) | No ROA | — | 5/31/2026 |
Covering Prefix
2 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 137.8.0.0/14 | AS721DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) | No ROA | — | 5/31/2026 |
| 137.9.0.0/16 | AS56DNIC-AS-00056 - United States Department of Defense (DoD) | No ROA | — | 5/31/2026 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/137.9.128.0/17Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/137.9.128.0/17" | jq
External Links