online CIDR and IP subnet calculator : Check host

199.19.104.142-199.19.104.143
199.19.104.142/31

199.19.104.144-199.19.104.159
199.19.104.144/28

199.19.104.160-199.19.104.191
199.19.104.160/27

199.19.104.192-199.19.104.255
199.19.104.192/26

199.19.105.0-199.19.105.255
199.19.105.0/24

199.19.106.0-199.19.107.255
199.19.106.0/23

199.19.108.0-199.19.111.255
199.19.108.0/22

IP subnet calculator 199.19.104.142-199.19.111.255