AS1637 Headquarters, USAISC
A network in Japan. Here are the size of its IP ranges and the data used for visitor checks.
Visitor check data
- Network type
- Regular network
- Known VPN servers
- None
- Tor exit nodes
- None
This network mainly serves home, office and mobile lines. VPN servers are counted only when they are on the public list. How checks work
Addresses by country
Japan163,072 addresses
United States9,728 addressesLargest IPv4 ranges
Up to 20, largest first.
143.46.0.0/16
155.6.0.0/16
155.5.0.0 ~ 155.5.143.255
143.68.152.0/21
6.134.24.0/22
6.16.88.0/23
155.20.102.0/23
147.248.24.0/24
155.20.105.0/24
192.172.29.0/24
Data: DB-IP (CC BY 4.0), public VPN server list, Tor Project exit list · as of 2026-10-12