158.205.0.0/16
🇯🇵CIDR
158.205.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇯🇵 Japan
City
Chiyoda City
RIR
APNIC
Status
allocated
Allocated
6/26/1992
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 158.205.0.0/16 | AS4694IDCF - IDC Frontier Inc. | Valid | RADB | 5/30/2026 |
Covering Prefix
6 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 158.205.216.0/21 | AS4694IDCF - IDC Frontier Inc. | Valid | — | 5/30/2026 |
| 158.205.238.0/23 | AS4694IDCF - IDC Frontier Inc. | Valid | — | 5/30/2026 |
| 158.205.198.0/24 | AS4694IDCF - IDC Frontier Inc. | Valid | — | 5/30/2026 |
| 158.205.121.0/24 | AS4694IDCF - IDC Frontier Inc. | Valid | — | 5/30/2026 |
| 158.205.229.0/24 | AS4694IDCF - IDC Frontier Inc. | Valid | — | 5/30/2026 |
| 158.205.238.0/24 | AS4694IDCF - IDC Frontier Inc. | Valid | — | 5/30/2026 |
Origin ASN
AS4694
IDCF - IDC Frontier Inc.
Geolocation
API
Open https://api.ipctl.io/v1/prefix/158.205.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/158.205.0.0/16" | jq
External Links