IP subnet calculator

66.29.128.0-66.29.140.67

66.29.140.0-66.29.140.63
66.29.140.0/26

66.29.140.64-66.29.140.67
66.29.140.64/30

66.29.128.0-66.29.135.255
66.29.128.0/21

66.29.136.0-66.29.139.255
66.29.136.0/22