NetHandle: NET-170-47-0-0-1 OrgID: SENATE Parent: NET-170-0-0-0-0 NetName: SENATE-NET NetRange: 184.108.40.206 - 220.127.116.11 NetType: assignment RegDate: 1994-02-10 Updated: 2006-03-29 TechHandle: DKA1-ARIN Source: ARIN OrgID: SENATE OrgName: Senate of Pennsylvania CanAllocate: Street: Senate Box 203052 City: Harrisburg State/Prov: PA Country: US PostalCode: 17120 RegDate: 1992-07-13 Updated: 2012-06-01 OrgTechHandle: DKA1-ARIN OrgTechHandle: ALY-ARIN OrgAbuseHandle: DKA1-ARIN OrgAdminHandle: DKA1-ARIN OrgNOCHandle: ALY-ARIN OrgAbuseHandle: ALY-ARIN Source: ARIN
IP address subranges within this IP 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.