Data as of Nov 7, 2026
203.104.20.0/23
No anonymizer space · no proxy exits in 30 daysYahoo Holdings Inc. · space held by Yahoo Inc.
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 203.104.16.0/21 | 2,048 | YAHOO-AP | Yahoo Inc. (ORG-YA6-AP) · US | ALLOCATED PORTABLE | — | rir-abuse@ |
| └ 203.104.20.0/22 | 1,024 | YAHOO-APAC | Yahoo APAC | ALLOCATED NON-PORTABLE | — | rir-abuse@ |
Network & registry
Announced by
Covering announcement 203.104.16.0/21
- Prefix
- 203.104.16.0/21
- Announced by
- AS10310 Yahoo Holdings Inc.
- Type
- Business
- RPKI
- No RPKI
- Netname
- YAHOO-AP
- Registrant
- Yahoo Inc.
- RIR
- APNIC
Origin network
AS10310
US
- Name
- Yahoo Holdings Inc.
- Type
- Business
- Registered
- Nov 14, 2001
- Domain
- yahooinc.com
- Website
- www.yahooinc.com/
- Industry
- Service
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 203.104.16.0/21
203.104.16.0/21
Routing history
- Pattern
- Stable
- First seen
- Apr 2006
- Current origin since
- Oct 2020 · 6.1 yr
- Origin networks
- 3
- Last change of origin
- Oct 2020
Recorded history
History
- Handoffs
- 2
Whois
Registration for this announcement
- Range
- 203.
104. 16. 0/ 21 - Netname
- YAHOO-AP
- Registrant
- Yahoo Inc.
- Registrant country
- US
- Organization
- Not stated by the registry
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- Mar 23, 2023
- Maintainer
- APNIC-HM
- RIR
- APNIC
- Country
- US
- Delegated
- Mar 14, 2006
- Status
- assigned
Report abuse
Abuse contact
- rir-abuse@
yahooinc. com - Name
- ABUSE YAHOOAP
- Handle
- AY527-AP