Data as of Nov 15, 2026
133.157.72.0/21
3 residential-proxy exits · 30 daysInternet Initiative Japan Inc. · space held by Japan Network Information Center
Announcement
this exact prefix
RPKI valid
Announced by
Type
Internet provider
Risk
0 / 100 · Low
Recent change
New origin Aug 2026
its first announcement on record
Residential-proxy exits
Proxy exits
3
0.15% of its addresses · 30 days
Spread
2 of 8
/24s with at least one exit
Providers
4
selling exits here
Oct 16, 2026 – Nov 14, 2026
Exits seen per day
11 observations
/24s with the most always-on exits
| /24 | Always-on exits | Proxy exits | |
|---|---|---|---|
| 133.157.77.0/24 | 0 | 2 | |
| 133.157.74.0/24 | 0 | 1 |
Proxy providers listing exits
- GSocks
- Infatica
- RainProxy
- Shifter
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 |
|---|---|---|---|---|---|---|
| 133.0.0.0/8 | 16,777,216 | JPNIC-NET-JP-ERX | Japan Network Information Center | ALLOCATED PORTABLE | — | hostmaster@ |
Network & registry
IPv4 market
Holder
- Organization
- Japan Network Information Center
- Range
- 133.
0. 0. 0/ 8 - Registration type
- ALLOCATED PORTABLE
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
- Aug 2026
- Current origin since
- Aug 2026 · 3 mo
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 133.157.72.0/21 | AS2497 | /24 | APNIC | RPKI valid |
| 133.157.72.0/21 | AS7529 | /21 | APNIC | Another network |
| 133.157.0.0/16 | AS0 | /16 | APNIC | Another network |
Whois
Registration for this announcement
- Range
- 133.
157. 0. 0/ 16 - Netname
- NETIRD-CIDR-BLK-JP
- Registrant
- GMO NetIRD, Inc.
- Registrant country
- JP
- Organization
- GMO NetIRD, Inc.
- Org country
- JP
- Created
- Not stated by the registry
- Updated
- Jan 19, 2026
- RIR
- APNIC
- Country
- JP
- Delegated
- Mar 1, 1997
- Status
- assigned
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