Here is the wan IP of the router 10.100.101.101 , how can i tell if its a private one ? want default gateway is 10.100.101.1

The wan of the router is connected to V.O.B (voice over broadband) modem which is connected to my cable modem before I had the router my pc was connected to the V.O.B (voice over broadband) modem...

Region : Argentina Model : TL-WR1043ND Hardware Version : v1 Firmware Version : ISP : Region : Others Model : TL-WR1042ND Hardware Version : V1 Firmware Version : 3.14.4 Build 120425 Rel.33749n ISP :...