AS14543 SRT Communications, Inc.
2605:4200::/32 - SRTCOM-V6
V6NetHandle: NET6-2605-4200-1 OrgID: SRTC Parent: NET6-2600-1 NetName: SRTCOM-V6 NetRange: 2605:4200:: - 2605:4200:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF NetType: allocation OriginAS: 14543 RegDate: 2010-12-27 Updated: 2012-03-02 TechHandle: IH23-ARIN AbuseHandle: TPT5-ARIN Source: ARIN OrgID: SRTC OrgName: SRT Communications, Inc. CanAllocate: Street: 3615 North Broadway City: Minot State/Prov: ND Country: US PostalCode: 58701 RegDate: 1999-05-12 Updated: 2017-01-28 OrgAbuseHandle: IH23-ARIN OrgTechHandle: IH23-ARIN OrgAdminHandle: TPT5-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.