199.123.104.0/21
🇺🇸CIDR
199.123.104.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇺🇸 United States
City
Columbus
RIR
ARIN
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 199.123.104.0/21 | AS721DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) | No ROA | — | 6/1/2026 |
Covering Prefix
3 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 199.123.108.0/24 | AS367DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | No ROA | — | 6/1/2026 |
| 199.123.105.0/24 | AS668DNIC-AS-00668 - United States Department of Defense (DoD) | No ROA | — | 6/1/2026 |
| 199.123.106.0/24 | AS1562DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | No ROA | — | 6/1/2026 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/199.123.104.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/199.123.104.0/21" | jq
External Links