AS20940 Akamai International B.V.
2600:1417:3::/48 - AKAMAI
V6NetHandle: NET6-2600-1400-1 OrgID: AKAMAI Parent: NET6-2600-1 NetName: AKAMAI NetRange: 2600:1400:: - 2600:14FF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: allocation RegDate: 2010-04-21 Updated: 2015-06-25 Source: ARIN OrgID: AKAMAI OrgName: Akamai Technologies, Inc. CanAllocate: Street: 150 Broadway City: Cambridge State/Prov: MA Country: US PostalCode: 02142 RegDate: 1999-01-21 Updated: 2019-05-29 OrgTechHandle: YKS-ARIN OrgTechHandle: SJS98-ARIN OrgTechHandle: IPADM11-ARIN OrgAdminHandle: IPADM11-ARIN OrgAbuseHandle: NUS-ARIN Source: ARIN POCHandle: IPADM11-ARIN IsRole: Y LastName: ipadmin FirstName: Street: 8 Cambridge Center Street: Mailstop 926-G Street: Network Architecture City: Cambridge State/Prov: MA Country: US PostalCode: 02139 RegDate: 2002-08-30 Updated: 2019-02-10 OfficePhone: +1-617-444-0017 Mailbox: firstname.lastname@example.org Source: ARIN POCHandle: NUS-ARIN IsRole: Y LastName: NOC United States FirstName: Street: 8 Cambridge Center Street: Mailstop 926-G City: Cambridge State/Prov: MA Country: US PostalCode: 02142 RegDate: 2002-11-18 Updated: 2017-03-07 OfficePhone: +1-617-444-2535 Mailbox: email@example.com 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.