Data as of Nov 7, 2026
203.183.154.0/23
No anonymizer space · no proxy exits in 30 daysSoftBank Corp. · space held by Japan Network Information Center
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 203.183.0.0/16 since Oct 2005 | AS4694 | Hosting | 1 | Japan Network Information Center |
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 203. | 393,216 | JPNIC-NET-JP | Japan Network Information Center | ALLOCATED PORTABLE | — | — |
Network & registry
IPv4 market
Holder
- Organization
- Japan Network Information Center
- Range
- 203.
178. 0. 0 - 203. 183. 255. 255 - Registration type
- ALLOCATED PORTABLE
Origin network
AS4725
JP
- Name
- SoftBank Corp.
- Type
- Internet provider
- Registered
- Aug 30, 1995
- Domain
- softbank.jp
- Website
- www.softbank.jp/en/
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Aug 2013
- Current origin since
- Aug 2013 · 13 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 203.
183. 153. 0 - 203. 183. 155. 255 - Netname
- ULTINA-CIDR-BLK-JP
- Registrant
- SoftBank Corp.
- Registrant country
- JP
- Organization
- SoftBank Corp.
- Org country
- JP
- Created
- Not stated by the registry
- Updated
- Mar 11, 2024
- RIR
- APNIC
- Country
- JP
- Delegated
- Apr 11, 1996
- Status
- assigned
Report abuse
Abuse contact
- net-abuse@
odn. ad. jp