Data as of Nov 14, 2026
203.140.166.0/24
3 residential-proxy exits · 30 daysSYNAPSE Co.,Ltd. · space held by Japan Network Information Center
Residential-proxy exits
Proxy exits
3
1.2% of its addresses · 30 days
Providers
11
selling exits here
Oct 15, 2026 – Nov 13, 2026
Exits seen per day
18 observations
Proxy providers listing exits
- AnyIP
- BirdProxies
- FastProxy
- Infatica
- LemonBright
- MangoProxy
- PROXYSCRAPE
- Proxiware
- Proxy302
- Shifter
- VitalExclusive
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. | 393,216 | JPNIC-NET-JP | Japan Network Information Center | ALLOCATED PORTABLE | — | hostmaster@ |
Network & registry
Announced by
Covering announcement 203.140.160.0/20
- Prefix
- 203.140.160.0/20
- Announced by
- AS7511 SYNAPSE Co.,Ltd.
- Type
- Residential
- Proxy exits
- 35
- Always-on exits
- 2
- RPKI
- RPKI valid
- Netname
- SYNAPSE-CIDR-BLK-JP
- Registrant
- SYNAPSE Co.,Ltd.
- RIR
- APNIC
IPv4 market
Holder
- Organization
- Japan Network Information Center
- Range
- 203.
136. 0. 0 - 203. 141. 255. 255 - Registration type
- ALLOCATED PORTABLE
Origin network
AS7511
JP
- Name
- SYNAPSE Co.,Ltd.
- Type
- Internet provider
- Registered
- Mar 3, 1997
- Domain
- synapse.jp
- Website
- www.synapse.jp
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 203.140.160.0/20
203.140.160.0/20
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- Apr 2019 · 7.6 yr
- Origin networks
- 5
- Last change of origin
- Apr 2019
Recorded history
History
- Handoffs
- 4
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 203.140.160.0/20 | AS7511 | /24 | APNIC | RPKI valid |
Whois
Registration for this announcement
- Range
- 203.
140. 160. 0/ 20 - Netname
- SYNAPSE-CIDR-BLK-JP
- Registrant
- SYNAPSE Co.,Ltd.
- Registrant country
- JP
- Organization
- SYNAPSE Co.,Ltd.
- Org country
- JP
- Created
- Not stated by the registry
- Updated
- Mar 19, 2019
- RIR
- APNIC
- Country
- JP
- Delegated
- May 21, 1996
- Status
- assigned
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