220.127.116.11/21 - ACN-BB-CANADA-198-72
NetHandle: NET-198-72-48-0-2 OrgID: C04827971 Parent: NET-198-72-48-0-1 NetName: ACN-BB-CANADA-198-72 NetRange: 18.104.22.168 - 22.214.171.124 NetType: reassignment OriginAS: 19397 RegDate: 2013-12-20 Updated: 2013-12-20 Source: ARIN OrgID: C04827971 OrgName: ACN CanAllocate: Street: 1100 Ave. des Canadiens de Montreal City: Montreal State/Prov: QC Country: CA PostalCode: H3B 2S2 RegDate: 2013-12-20 Updated: 2013-12-20 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.