AS19165 Webpass Inc.
220.127.116.11/17 - SAN-FRANCISCO-5
NetHandle: NET-136-25-0-0-1 OrgID: C06260924 Parent: NET-136-24-0-0-1 NetName: SAN-FRANCISCO-5 NetRange: 18.104.22.168 - 22.214.171.124 NetType: reassignment OriginAS: 19165 RegDate: 2016-11-21 Updated: 2016-11-21 Source: ARIN OrgID: C06260924 OrgName: Webpass Inc. CanAllocate: Street: 267 8th Street City: San Francisco State/Prov: CA Country: US PostalCode: 94103 RegDate: 2016-11-18 Updated: 2016-11-18 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.