Data as of Nov 7, 2026
203.181.192.0/18
22 residential-proxy exits · 30 daysResearch Organization of Information and Systems, National Institute of Informatics · space held by Japan Network Information Center
Residential-proxy exits
Proxy exits
22
0.13% of its addresses · 30 days
Always-on exits
1
4.5% of its exits
Spread
8 of 64
/24s with at least one exit
Providers
45
selling exits here
Oct 8, 2026 – Nov 6, 2026
Exits seen per day
3.7K observations
/24s with the most always-on exits
| /24 | Always-on exits | Proxy exits | |
|---|---|---|---|
| 203.181.239.0/24 | 1 | 2 | |
| 203.181.255.0/24 | 0 | 7 | |
| 203.181.216.0/24 | 0 | 4 | |
| 203.181.241.0/24 | 0 | 3 | |
| 203.181.243.0/24 | 0 | 3 | |
| 203.181.236.0/24 | 0 | 1 | |
| 203.181.237.0/24 | 0 | 1 | |
| 203.181.252.0/24 | 0 | 1 |
Proxy providers listing exits
- 2Captcha
- Ake.net
- BartProxies
- BirdProxies
- BottingTools
- BuyingProxy
- ByteProxies
- Byteful
- CliProxy
- DataImpulse
- Datarama
- EZProxies
- EnigmaProxy
- Evomi
- FastProxy
- FlashProxy
- FlexyProxies
- FloppyData
- GSocks
- Geonix
- Geonode
- GonzoProxy
- IPPeak
- Infatica
- InfiniteProxies
- LemonBright
- LemonLabs
- LemonPrime
- MangoProxy
- NodeProxy
- NovaProxy
- Proxiware
- Proxy-Seller
- Proxy4U
- ProxyEmpire
- ProxyGeo
- ProxyRack
- Proxying
- Proxyma
- RainProxy
- ResiProxies
- Shifter
- Thordata
- VantageProxies
- VitalExclusive
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 203.181.194.0/23 since May 2005 | AS7660 | Business | Japan Network Information Center | |
| 203.181.248.0/23 since May 2005 | AS7660 | Business | Japan Network Information Center |
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 |
|---|---|---|---|---|---|---|
| 203. | 393,216 | JPNIC-NET-JP | Japan Network Information Center | ALLOCATED PORTABLE | — | — |
Network & registry
IPv4 market
Holder
- Organization
- Japan Network Information Center
- Range
- 203.
178. 0. 0 - 203. 183. 255. 255 - Registration type
- ALLOCATED PORTABLE
Origin network
AS2907
JP
- Name
- Research Organization of Information and Systems, National Institute of Informatics
- Type
- Education
- Registered
- Aug 1, 2002
- Domain
- sinet.ad.jp
- Website
- www.sinet.ad.jp/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 21 yr
- Origin networks
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS2907 | JPIRR | SINET CIDR Block | MAINT-AS2907 | Mar 2, 2026 |
Whois
Registration for this announcement
- Range
- 203.
181. 192. 0/ 18 - Netname
- SINET-CIDR-BLK-JP
- Registrant
- Research Organization of Information and Systems, National Institute of Informatics
- Registrant country
- JP
- Organization
- Research Organization of Information and Systems, National Institute of Informatics
- Org country
- JP
- Created
- Not stated by the registry
- Updated
- Jun 13, 2024
- RIR
- APNIC
- Country
- JP
- Delegated
- Apr 11, 1996
- Status
- assigned
Report abuse
Abuse contact
- abuse@
sinet. ad. jp