AS16509 · Prefix

13.231.41.0/24

Announced in the global routing table by AS16509 (AMAZON-02 - Amazon.com, Inc.), as part of 13.230.0.0/15. Allocation: Administered by ARIN. Per AWS’s official list: ap-northeast-1 (Tokyo, Japan).

Reverse DNS naming one in every 8 addresses sampled

32 of 32 sampled addresses have reverse DNS, mostly named like datacenter / cloud servers.

ec2-13-231-41-1.ap-northeast-1.compute.amazonaws.comec2-13-231-41-9.ap-northeast-1.compute.amazonaws.comec2-13-231-41-17.ap-northeast-1.compute.amazonaws.com

IPs checked on IP Judge datacenter / proxy IPs listed; residential and mobile only counted

Proxy / VPN · 1

13.231.41.173

Check an IP in this range

Sources: RIPEstat (routing and allocation data), IP Judge reverse-DNS sampling and lookups.