Data as of Nov 8, 2026
183.73.0.0/20
No anonymizer space · no proxy exits in 30 daysNTT Docomo, Inc.
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 |
|---|---|---|---|---|---|---|
| 183.72.0.0/14 | 262,144 | NTTDoCoMo | NTT Docomo,inc. | ALLOCATED PORTABLE | — | abuse@ |
Network & registry
Registry
Holder
- Organization
- NTT Docomo,inc.
- Range
- 183.
72. 0. 0/ 14 - Registration type
- ALLOCATED PORTABLE
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 this prefix
Summary
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 |
|---|---|---|---|---|
| 183.73.0.0/20 | AS9605 | /20 | APNIC | RPKI valid |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS9605 | JPIRR | NTT DoCoMo, Inc. | MAINT-AS9605 | Oct 21, 2026 |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 183.73.0.0/21 | AS9605 | JPIRR | NTT DoCoMo, Inc. | MAINT-AS9605 | Oct 21, 2026 |
| 183.73.8.0/21 | AS9605 | JPIRR | NTT DoCoMo, Inc. | MAINT-AS9605 | Oct 21, 2026 |
Whois
Registration for this announcement
- Range
- 183.
73. 0. 0/ 17 - Netname
- MAPS
- Registrant
- NTT DoCoMo, Inc.
- Registrant country
- JP
- Organization
- NTT DoCoMo, Inc.
- Org country
- JP
- Created
- Not stated by the registry
- Updated
- Jan 15, 2010
- RIR
- APNIC
- Country
- JP
- Delegated
- Oct 29, 2009
- Status
- assigned
Report abuse
Abuse contact
- abuse@
nttdocomo. com