NetHandle: NET-63-139-205-0-1 OrgID: C01416322 Parent: NET-63-138-0-0-1 NetName: PAET-AL-HEALT-1 NetRange: 18.104.22.168 - 22.214.171.124 NetType: reassignment RegDate: 2006-08-03 Updated: 2006-08-03 Source: ARIN OrgID: C01416322 OrgName: HEALTHCARE ASSOCIATION OF NEW YORK STATE (HANYS) CanAllocate: Street: 1 EMPIRE DR City: RENSSELAER State/Prov: NY Country: US PostalCode: 12144 RegDate: 2006-08-03 Updated: 2011-03-19 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.