inetnum: 18.104.22.168 - 22.214.171.124 netname: ATLANTEK-MAINNET1 descr: Atlantek_Infrastructure country: IE admin-c: AM20046-RIPE tech-c: AM20046-RIPE status: ASSIGNED PA mnt-by: MNT-ATLANTEK created: 2011-11-11T13:17:55Z last-modified: 2011-11-11T13:17:55Z source: RIPE person: Alan McGrath address: Rossport address: Ballina address: Co Mayo phone: +3539782255 e-mail: firstname.lastname@example.org nic-hdl: AM20046-RIPE mnt-by: MNT-ATLANTEK created: 2011-04-13T10:12:13Z last-modified: 2011-04-13T10:12:13Z source: RIPE route: 126.96.36.199/23 descr: Atlantek Computers origin: AS49221 mnt-by: MNT-ATLANTEK created: 2015-04-17T12:43:42Z last-modified: 2015-04-17T12:43:42Z source: RIPE
IP Addresses in this range
IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.
Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.