online CIDR and IP subnet calculator : Check host

209.180.82.0-209.180.83.255
209.180.82.0/23

209.180.84.0-209.180.87.255
209.180.84.0/22

209.180.88.0-209.180.95.255
209.180.88.0/21

209.180.96.0-209.180.127.255
209.180.96.0/19

209.180.128.0-209.180.143.255
209.180.128.0/20

209.180.144.0-209.180.147.255
209.180.144.0/22

209.180.148.0-209.180.149.255
209.180.148.0/23

IP subnet calculator 209.180.82.0-209.180.149.255