V6NetHandle: NET6-2600-2 OrgID: SPRN Parent: NET6-2600-1 NetName: SPRINT-V6IP NetRange: 2600:: - 2600:7:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: allocation RegDate: 2006-12-21 Updated: 2012-03-02 NOCHandle: SPRINT-NOC-ARIN TechHandle: ARINS-ARIN AbuseHandle: SPRINT-NOC-ARIN Source: ARIN OrgID: SPRN OrgName: Sprint CanAllocate: Street: 12502 Sunrise Valley Drive City: Reston State/Prov: VA Country: US PostalCode: 20196 Comment: For abuse issues please Comment: send email to ABUSE@SPRINT.NET only. Comment: Law Enforcement requests should call the Corporate Security Hotline at Comment: 800-877-7330, option 3 RegDate: 1970-01-01 Updated: 2017-10-12 OrgTechHandle: KRW1-ARIN OrgTechHandle: BLACK336-ARIN OrgTechHandle: CHUYI-ARIN OrgTechHandle: WHISL1-ARIN OrgAbuseHandle: SAET-ARIN OrgTechHandle: SIE-ARIN OrgTechHandle: HICKS194-ARIN OrgTechHandle: ARINS-ARIN OrgAdminHandle: CHUYI-ARIN OrgTechHandle: AJA88-ARIN OrgTechHandle: DRW52-ARIN OrgTechHandle: BUDDK-ARIN Source: ARIN
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.