AS3909 CenturyLink Communications, LLC
184.108.40.206/20 - QWEST-QBSI-BLK-12
NetHandle: NET-151-118-0-0-2 OrgID: QWESTB Parent: NET-151-118-0-0-1 NetName: QWEST-QBSI-BLK-12 NetRange: 220.127.116.11 - 18.104.22.168 NetType: reassignment RegDate: 2001-11-30 Updated: 2006-02-06 TechHandle: CQ23-ARIN AbuseHandle: QWEST2-ARIN NOCHandle: QIA3-ARIN Source: ARIN OrgID: QWESTB OrgName: Qwest Broadband CanAllocate: Street: 700 W. Mineral Ave City: Littleton State/Prov: CO Country: US PostalCode: 80120 RegDate: 2001-11-30 Updated: 2011-09-24 OrgTechHandle: CQ23-ARIN OrgAdminHandle: CQ23-ARIN OrgAbuseHandle: CQ23-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.