online CIDR and IP subnet calculator : Check host

208.133.142.0-208.133.143.255
208.133.142.0/23

208.133.144.0-208.133.159.255
208.133.144.0/20

208.133.160.0-208.133.191.255
208.133.160.0/19

208.133.192.0-208.133.255.255
208.133.192.0/18

208.136.0.0-208.136.63.255
208.136.0.0/18

208.136.64.0-208.136.95.255
208.136.64.0/19

208.136.96.0-208.136.99.255
208.136.96.0/22

208.136.100.0-208.136.101.255
208.136.100.0/23

208.134.0.0-208.135.255.255
208.134.0.0/15

IP subnet calculator 208.133.142.0-208.136.101.255