Data as of Nov 7, 2026
121.200.200.0/21
No anonymizer space · no proxy exits in 30 daysInternet Initiative Japan Inc.
Network & registry
Origin network
AS2497
JP
- Name
- Internet Initiative Japan Inc.
- Type
- Internet provider
- Registered
- Apr 5, 2002
- Domain
- iij.ad.jp
- Website
- www.iij.ad.jp/en/
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Dec 2007
- Current origin since
- Mar 2010 · 17 yr
- Origin networks
- 2
- Last change of origin
- Mar 2010
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 121.200.200.0/21 | AS2497 | /21 | APNIC | RPKI valid |
Whois
Registration for this announcement
- Range
- 121.
200. 200. 0/ 21 - Netname
- IIJ-CIDR-BLK-JP
- Registrant
- Internet Initiative Japan Inc.
- Registrant country
- JP
- Organization
- Internet Initiative Japan Inc.
- Org country
- JP
- Created
- Not stated by the registry
- Updated
- Oct 7, 2020
- RIR
- APNIC
- Country
- JP
- Delegated
- Oct 23, 2007
- Status
- assigned
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