128.216.0.0/16
🇯🇵IPv4ARINallocatedNo ROA
CIDR
128.216.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇯🇵 Japan
City
Chiyoda City
RIR
ARIN
Status
allocated
Allocated
3/23/1987
Announced BGP Routes
0 of 0 routesRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| This prefix is not currently announced in BGP. See covering prefix below. | ||||
Covering Prefix
5 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 128.216.128.0/17 | AS749DNIC-AS-00749 - United States Department of Defense (DoD) | No ROA | — | 6/13/2026 |
| 128.216.64.0/18 | AS749DNIC-AS-00749 - United States Department of Defense (DoD) | No ROA | — | 6/13/2026 |
| 128.216.32.0/19 | AS749DNIC-AS-00749 - United States Department of Defense (DoD) | No ROA | — | 6/13/2026 |
| 128.216.0.0/20 | AS409AFCONC-BLOCK1-AS - Air Force Systems Networking | No ROA | — | 6/13/2026 |
| 128.216.16.0/20 | AS749DNIC-AS-00749 - United States Department of Defense (DoD) | No ROA | — | 6/13/2026 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/128.216.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/128.216.0.0/16" | jq
External Links