IPv4 prefix
203.183.0.0/16
- IP Prefix (CIDR)
- 203.183.0.0/16
- Subnet Mask
- 255.255.0.0
- Address Count
- 65,536
Registration 1 of 2
- Owner
- Japan Network Information Center
- Handle
- JNIC1-AP
- Country
-
Japan (JP)
- Address
- Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda Chiyoda-ku, Tokyo 101-0047, Japan
- Registry
- APNIC
- Registered Prefix
- 203.180.0.0/14 (203.180.0.0 - 203.183.255.255)
- Delegated Prefix
- 203.178.0.0/15 (203.178.0.0 - 203.179.255.255)
Registration 2 of 2
- Owner
- Japan Network Information Center
- Handle
- JNIC1-AP
- Country
-
Japan (JP)
- Address
- Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda Chiyoda-ku, Tokyo 101-0047, Japan
- Registry
- JPNIC
- Registered Prefixes
-
203.183.0.0/24 (203.183.0.0 - 203.183.0.255)
203.183.153.0/24 (203.183.153.0 - 203.183.153.255)
203.183.154.0/23 (203.183.154.0 - 203.183.155.255) - Delegated Prefix
- 203.180.0.0/14 (203.180.0.0 - 203.183.255.255)
| Announced Prefix | Relationship | Origin ASN | Description | Country | First Address | Last Address |
|---|---|---|---|---|---|---|
| 203.183.0.0/16 | Exact | AS4694 | IDC Frontier Inc. |
Japan (JP)
|
203.183.0.0 | 203.183.255.255 |
| 203.183.153.0/24 | More specific | AS4725 | SoftBank Corp. |
Japan (JP)
|
203.183.153.0 | 203.183.153.255 |
| 203.183.154.0/23 | More specific | AS4725 | SoftBank Corp. |
Japan (JP)
|
203.183.154.0 | 203.183.155.255 |