online CIDR and IP subnet calculator : Check host

170.142.74.0-170.142.75.255
170.142.74.0/23

170.142.76.0-170.142.79.255
170.142.76.0/22

170.142.80.0-170.142.95.255
170.142.80.0/20

170.142.96.0-170.142.127.255
170.142.96.0/19

170.142.128.0-170.142.255.255
170.142.128.0/17

170.143.0.0-170.143.127.255
170.143.0.0/17

170.143.128.0-170.143.191.255
170.143.128.0/18

IP subnet calculator 170.142.74.0-170.143.191.255