AS7152 American Red Cross
22.214.171.124/20 - RED-CROSS
NetHandle: NET-162-6-0-0-1 OrgID: ARCNH Parent: NET-162-0-0-0-0 NetName: RED-CROSS NetRange: 126.96.36.199 - 188.8.131.52 NetType: assignment Comment: =20 RegDate: 1992-06-23 Updated: 2003-03-12 TechHandle: NO24-ORG-ARIN Source: ARIN OrgID: ARCNH OrgName: American Red Cross, National Headquarters CanAllocate: Street: 8111 Gatehouse Rd City: Falls Church State/Prov: VA Country: US PostalCode: 22042 RegDate: 1992-06-23 Updated: 2011-09-24 OrgTechHandle: NO24-ORG-ARIN OrgAdminHandle: NO24-ORG-ARIN OrgAbuseHandle: NO24-ORG-ARIN Source: ARIN POCHandle: NO24-ORG-ARIN IsRole: Y LastName: Network Operations FirstName: Street: 431 18th Street NW City: Washington State/Prov: DC Country: US PostalCode: 20006 RegDate: 1999-01-25 Updated: 2017-08-22 OfficePhone: +1-202-303-6117 Mailbox: firstname.lastname@example.org 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.