128.28.0.0/16
🇯🇵CIDR
128.28.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇯🇵 Japan
City
Chiyoda
RIR
APNIC
Status
allocated
Allocated
10/24/1983
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 128.28.0.0/16 | AS2514InfoSphere - NTT PC Communications, Inc. | Valid | — | 6/13/2026 |
Covering Prefix
26 less-specific announcementsRPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 128.28.0.0/16 | AS2514 | /24 | apnic |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/128.28.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/128.28.0.0/16" | jq
External Links