AS174 Cogent Communications
184.108.40.206/24 - PSINET1
NetHandle: NET-136-161-0-0-1 OrgID: PNO-2 Parent: NET-136-0-0-0-0 NetName: PSINET1 NetRange: 220.127.116.11 - 18.104.22.168 NetType: assignment RegDate: 1989-09-19 Updated: 1991-01-03 TechHandle: PSI-NISC-ARIN Source: ARIN OrgID: PNO-2 OrgName: PSI Network One CanAllocate: Street: 165 Jordan Road City: Troy State/Prov: NY Country: US PostalCode: 12180 RegDate: 1989-09-19 Updated: 2011-09-24 OrgTechHandle: PSI-NISC-ARIN OrgAdminHandle: PSI-NISC-ARIN OrgAbuseHandle: PSI-NISC-ARIN Source: ARIN POCHandle: PSI-NISC-ARIN IsRole: Y LastName: IP Allocation FirstName: Street: 2450 N st NW City: Washington State/Prov: DC Country: US PostalCode: 20037 RegDate: 1970-01-01 Updated: 2019-02-06 OfficePhone: +1-877-875-4311 Mailbox: email@example.com Source: ARIN
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.