Data as of Nov 14, 2026
183.181.80.0/22
No anonymizer space · no proxy exits in 30 daysXserver Inc. · space held by XServer Networks Inc.
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | RPKI |
|---|---|---|---|---|
| 183.181.80.0/20 since May 2023 | AS131965 | Hosting | 1 |
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 |
|---|---|---|---|---|---|---|
| 183. | 4,096 | XSCLD | XServer Networks Inc. | ALLOCATED PORTABLE | — | hostmaster@ |
| └ 183.181.80.0/21 | 2,048 | XSCLD-CIDR-BLK-JP | unknown | — | — | hostmaster@ |
Network & registry
IPv4 market
Holder
- Organization
- XServer Networks Inc.
- Range
- 183.
181. 78. 0 - 183. 181. 93. 255 - Registration type
- ALLOCATED PORTABLE
Origin network
AS131965
JP
- Name
- Xserver Inc.
- Type
- Hosting
- Registered
- Aug 4, 2011
- Domain
- xserver.co.jp
- Website
- www.xserver.co.jp/
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Dec 2021
- Current origin since
- Dec 2021 · 4.9 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 183.181.80.0/20 | AS131965 | /24 | APNIC | RPKI valid |
Whois
Registration for this announcement
- Range
- 183.
181. 80. 0/ 21 - Netname
- XSCLD-CIDR-BLK-JP
- Registrant
- XServer Networks Inc.
- Registrant country
- JP
- Organization
- XServer Networks Inc.
- Org country
- JP
- Created
- Not stated by the registry
- Updated
- Oct 9, 2026
- RIR
- APNIC
- Country
- JP
- Delegated
- Dec 1, 2009
- Status
- assigned
Report abuse
Abuse contact
- abuse@
xserver. co. jp