The IP address 121.2.138.172 : p79028aac.chibnt01.ap.so-net.ne.jp

The IP address 121.2.138.172 detail

The IP address 121.2.138.172 (IPv4) is written in long version 2030209708.

This IPv4 address is provided by the ISP So-net Entertainment Corporation which is the access point AS2527 (Corresponds to a physical point or line copper / fiber that IP address is connected to the ISP).
ISP can be a web host in case the IP address matches a website and not to an ADSL line.

Approximate geolocation of this IP address: Japan