103.121.44.0/22
🇯🇵CIDR
103.121.44.0/22
IP Version
IPv4
Addresses
1K
Mask
/22 (255.255.252.0)
Country
🇯🇵 Japan
City
Chiyoda City
RIR
APNIC
Status
allocated
Allocated
8/15/2018
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 103.121.44.0/22 | AS131941ENTSU-NET - Entsu Co.,Ltd. | No ROA | RADB | 5/31/2026 |
Covering Prefix
5 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 103.121.44.0/23 | AS131941ENTSU-NET - Entsu Co.,Ltd. | No ROA | — | 5/31/2026 |
| 103.121.44.0/24 | AS131941ENTSU-NET - Entsu Co.,Ltd. | No ROA | — | 5/31/2026 |
| 103.121.45.0/24 | AS131941ENTSU-NET - Entsu Co.,Ltd. | No ROA | — | 5/31/2026 |
| 103.121.46.0/24 | AS131941ENTSU-NET - Entsu Co.,Ltd. | No ROA | — | 5/31/2026 |
| 103.121.47.0/24 | AS131941ENTSU-NET - Entsu Co.,Ltd. | No ROA | — | 5/31/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS131941 | RADB | MAINT-AS131941 | 11/13/2023 |
Origin ASN
AS131941
ENTSU-NET - Entsu Co.,Ltd.
Geolocation
API
Open https://api.ipctl.io/v1/prefix/103.121.44.0/22Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/103.121.44.0/22" | jq
External Links