TEST-A.txt: list of ip address ranges [AS/isp's in a country] TEST-B.txt: list of ip addresses I just need to know, if an ip in the TEST-B.txt is in a range of TEST-A.txt cat "TEST-A.txt" 63.31.63.0/24;9007;44536 64.65.0.0/19;9000;8263 62.64.14.0/21;9001;6852 cat "TEST-B.txt" 63.31.63.2 64.66.5.4 63.31.63.66 62.64.14.231 output: 63.31.63.0/24;9007;44536 63.31.63.2 63.31.63.66 62.64.14.0/21;9001;6852 62.64.14.231 -> so is an ip address [in TEST-B.txt] is from my country [TEST-A.txt] or not? thanks:\