126.96.36.199/21 - NAITC
NetHandle: NET-138-108-0-0-1 OrgID: ACNIEL Parent: NET-138-0-0-0-0 NetName: NAITC NetRange: 188.8.131.52 - 184.108.40.206 NetType: assignment RegDate: 1990-04-27 Updated: 2007-03-28 TechHandle: BO270-ARIN NOCHandle: BO270-ARIN AbuseHandle: BO270-ARIN Source: ARIN OrgID: ACNIEL OrgName: A.C. Nielsen Company CanAllocate: Street: 150 North Martingale City: Schaumburg State/Prov: IL Country: US PostalCode: 60173 RegDate: 1990-04-27 Updated: 2018-01-26 OrgTechHandle: BO270-ARIN OrgAdminHandle: BO270-ARIN OrgAbuseHandle: BO270-ARIN Source: ARIN POCHandle: BO270-ARIN IsRole: N LastName: Olsen FirstName: Brian Street: 501 Brooker Creek City: Oldsmar State/Prov: FL Country: US PostalCode: 34677 RegDate: 2002-08-09 Updated: 2019-02-13 OfficePhone: +1-847-598-2310 Mailbox: email@example.com Source: ARIN
IP address subranges within this IP range
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.