online CIDR and IP subnet calculator : Check host

57.181.142.0-57.181.142.127
57.181.142.0/25

57.181.142.128-57.181.142.159
57.181.142.128/27

57.181.142.160-57.181.142.163
57.181.142.160/30

57.181.38.0-57.181.39.255
57.181.38.0/23

57.181.40.0-57.181.47.255
57.181.40.0/21

57.181.48.0-57.181.63.255
57.181.48.0/20

57.181.64.0-57.181.127.255
57.181.64.0/18

57.181.128.0-57.181.135.255
57.181.128.0/21

57.181.136.0-57.181.139.255
57.181.136.0/22

57.181.140.0-57.181.141.255
57.181.140.0/23

IP subnet calculator 57.181.38.0-57.181.142.163