AS16509 · Prefix

3.1.129.0/24

Announced in the global routing table by AS16509 (AMAZON-02 - Amazon.com, Inc.), as part of 3.0.0.0/15. Allocation: Administered by ARIN. Per AWS’s official list: ap-southeast-1 (Singapore).

Reverse DNS naming one in every 8 addresses sampled

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

ec2-3-1-129-1.ap-southeast-1.compute.amazonaws.comec2-3-1-129-9.ap-southeast-1.compute.amazonaws.comec2-3-1-129-17.ap-southeast-1.compute.amazonaws.com

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

Datacenter IP · 1

3.1.129.91

Check an IP in this range

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