2600:c12::/32 - PNAP-IPV6-02-2009
V6NetHandle: NET6-2600-C00-1 OrgID: PNAP Parent: NET6-2600-1 NetName: PNAP-IPV6-02-2009 NetRange: 2600:C00:: - 2600:C14:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: allocation OriginAS: 22212, 10910, 10911, 19024, 13789, 13791, 13790, 14636, 12180, 14745, 12181, 14744, 12182, 6993, 11854, 11855, 12178, 11853, 12179, 22132, 10913, 10912, 14743, 14742 RegDate: 2010-02-02 Updated: 2018-03-27 NOCHandle: INO3-ARIN TechHandle: INO3-ARIN AbuseHandle: IAC15-ARIN Source: ARIN OrgID: PNAP OrgName: Internap Network Services Corporation CanAllocate: Street: 250 Williams Street Street: Suite E100 City: Atlanta State/Prov: GA Country: US PostalCode: 30303 RegDate: 1996-07-18 Updated: 2012-01-24 OrgAbuseHandle: IAC3-ARIN OrgTechHandle: INO3-ARIN OrgAdminHandle: INO3-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.