AS12129 123.Net, Inc.
2607:f790::/32 - 123NET-BLK-IPV6
V6NetHandle: NET6-2607-F790-1 OrgID: NETIN-6 Parent: NET6-2600-1 NetName: 123NET-BLK-IPV6 NetRange: 2607:F790:: - 2607:F790:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: allocation OriginAS: 12129 RegDate: 2009-01-22 Updated: 2012-03-02 Source: ARIN OrgID: NETIN-6 OrgName: 123.Net, Inc. CanAllocate: Street: 24700 Northwestern Hwy. STE 700 City: Southfield State/Prov: MI Country: US PostalCode: 48075 Comment: Direct Abuse: +126.96.36.19900 or email@example.com RegDate: 2010-11-19 Updated: 2017-01-28 OrgNOCHandle: RD1464-ARIN OrgAbuseHandle: RD1464-ARIN OrgAdminHandle: RD1464-ARIN OrgTechHandle: JNO80-ARIN OrgTechHandle: RD1464-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.