138.101.0.0/16
🇯🇵CIDR
138.101.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇯🇵 Japan
City
Chiyoda
RIR
APNIC
Status
allocated
Allocated
4/23/1990
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 138.101.0.0/16 | AS9593NIKKEI - Nikkei Inc. | Valid | RADB | 6/1/2026 |
Covering Prefix
5 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 138.101.32.0/20 | AS9593NIKKEI - Nikkei Inc. | Invalid | — | 6/1/2026 |
| 138.101.2.0/24 | AS16509AMAZON-02 - Amazon.com, Inc. | Valid | — | 6/1/2026 |
| 138.101.3.0/24 | AS16509AMAZON-02 - Amazon.com, Inc. | Valid | — | 6/1/2026 |
| 138.101.22.0/24 | AS16509AMAZON-02 - Amazon.com, Inc. | Valid | — | 6/1/2026 |
| 138.101.23.0/24 | AS16509AMAZON-02 - Amazon.com, Inc. | Valid | — | 6/1/2026 |
Origin ASN
AS9593
NIKKEI - Nikkei Inc.
Geolocation
API
Open https://api.ipctl.io/v1/prefix/138.101.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/138.101.0.0/16" | jq
External Links