AS22573 Northwestel Inc.
220.127.116.11/21 - NTNET-BLK
NetHandle: NET-207-148-48-0-1 OrgID: NTNE Parent: NET-207-0-0-0-0 NetName: NTNET-BLK NetRange: 18.104.22.168 - 22.214.171.124 NetType: allocation RegDate: 1996-06-07 Updated: 2018-11-14 Source: ARIN OrgID: NTNE OrgName: NTnet Operations Ltd. CanAllocate: Street: P.O. Box 357 City: Yellowknife State/Prov: NT Country: CA PostalCode: X1A 2N3 RegDate: 1994-04-28 Updated: 2017-04-20 OrgTechHandle: NO136-ORG-ARIN OrgAdminHandle: NO136-ORG-ARIN OrgAbuseHandle: NO136-ORG-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.