117.20.72.0/21
🇯🇵CIDR
117.20.72.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇯🇵 Japan
City
Bunkyō-ku
RIR
APNIC
Status
allocated
Allocated
6/19/2007
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 117.20.72.0/21 | AS23639ntt-bizlink - NTT Bizlink, Inc. | No ROA | — | 5/31/2026 |
Covering Prefix
2 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 117.20.72.0/22 | AS23639ntt-bizlink - NTT Bizlink, Inc. | No ROA | — | 5/31/2026 |
| 117.20.76.0/22 | AS23639ntt-bizlink - NTT Bizlink, Inc. | No ROA | — | 5/31/2026 |
Origin ASN
AS23639
ntt-bizlink - NTT Bizlink, Inc.
Geolocation
API
Open https://api.ipctl.io/v1/prefix/117.20.72.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/117.20.72.0/21" | jq
External Links