220.127.116.11/20 - ACN-CANADA-BB-18
NetHandle: NET-69-9-64-0-2 OrgID: C02136509 Parent: NET-69-9-64-0-1 NetName: ACN-CANADA-BB-18 NetRange: 18.104.22.168 - 22.214.171.124 NetType: reassignment OriginAS: 19397 RegDate: 2009-01-20 Updated: 2009-01-20 Source: ARIN OrgID: C02136509 OrgName: ACN Digital Phone Service CanAllocate: Street: 800 Rene Levesque West City: Montreal State/Prov: QC Country: CA PostalCode: H3B-1X9 RegDate: 2009-01-20 Updated: 2011-03-19 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.