Data as of Nov 8, 2026
163.221.0.0/16
2 residential-proxy exits · 30 daysNara Institute of Science and Technology, National University Corporation
Residential-proxy exits
Proxy exits
2
<0.01% of its addresses · 30 days
Spread
2 of 256
/24s with at least one exit
Providers
4
selling exits here
Oct 9, 2026 – Nov 7, 2026
Exits seen per day
29 observations
/24s with the most always-on exits
| /24 | Always-on exits | Proxy exits | |
|---|---|---|---|
| 163.221.195.0/24 | 0 | 1 | |
| 163.221.241.0/24 | 0 | 1 |
Proxy providers listing exits
- FastProxy
- LemonBright
- ThunderProxy
- VitalExclusive
Network & registry
Origin network
AS131158
JP
- Name
- Nara Institute of Science and Technology, National University Corporation
- Type
- Education
- Registered
- Oct 3, 2008
- Domain
- naist.ac.jp
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Rotating
- First seen
- May 2005
- Current origin since
- Jan 2024 · 2.8 yr
- Origin networks
- 2
- Last change of origin
- Jan 2024
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- 163.
221. 0. 0/ 16 - Netname
- AISTNET
- Registrant
- Nara Institute of Science and Technology, National University Corporation
- Registrant country
- JP
- Organization
- Nara Institute of Science and Technology, National University Corporation
- Org country
- JP
- Type
- ASSIGNED PORTABLE
- Created
- Not stated by the registry
- Updated
- Oct 29, 2021
- Maintainer
- MAINT-JPNIC
- RIR
- APNIC
- Country
- JP
- Delegated
- Mar 26, 1993
- Status
- assigned
Report abuse
Abuse contact
- hostmaster@
nic. ad. jp - Name
- IRT-JPNIC-JP
- Handle
- IRT-JPNIC-JP