Data as of Nov 3, 2026
183.72.0.0/17
No anonymizer space · no proxy exits in 30 daysNTT Docomo, Inc.
Network & registry
Announced by
Covering announcement 183.72.0.0/16
- Prefix
- 183.72.0.0/16
- Announced by
- AS9605 NTT Docomo, Inc.
- Type
- Mobile
- RPKI
- RPKI valid
- Netname
- NTTDoCoMo-CIDR-BLK-JP
- Registrant
- NTT Docomo,inc.
- RIR
- APNIC
Origin network
AS9605
JP
- Name
- NTT Docomo, Inc.
- Type
- Internet provider
- Registered
- Aug 5, 1999
- Domain
- nttdocomo.com
- Website
- www.nttdocomo.co.jp/
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 183.72.0.0/16
183.72.0.0/16
Routing history
- Pattern
- Stable
- First seen
- Dec 2014
- Current origin since
- Dec 2014 · 12 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 183.72.0.0/16 | AS9605 | /16 | APNIC | RPKI valid |
IRR
Route objects on 183.72.0.0/16
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS9605 | JPIRR | NTTDoCoMo,Inc. | MAINT-AS9605 | Nov 12, 2025 |
Whois
Registration for this announcement
- Range
- 183.72.0.0/14
- Netname
- NTTDoCoMo-CIDR-BLK-JP
- Registrant
- NTT Docomo,inc.
- Registrant country
- JP
- Organization
- NTT Docomo,inc.
- Org country
- JP
- Created
- Not stated by the registry
- Updated
- Sep 14, 2022
- RIR
- APNIC
- Country
- JP
- Delegated
- Oct 29, 2009
- Status
- assigned
Report abuse
Abuse contact
- [email protected]