NetHandle: NET-66-189-251-0-1 OrgID: C02751488 Parent: NET-66-189-248-0-1 NetName: PCNT-66-189-251-0 NetRange: 184.108.40.206 - 220.127.116.11 NetType: reassignment OriginAS: 20115 RegDate: 2011-05-06 Updated: 2011-05-06 Source: ARIN OrgID: C02751488 OrgName: PCNet, Inc. CanAllocate: Street: 100 Technology Drive City: CT State/Prov: CT Country: US PostalCode: 06611 RegDate: 2011-05-06 Updated: 2011-05-06 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.