AS4943 Networks On-Line
184.108.40.206/19 - NETON-BLK
NetHandle: NET-207-91-128-0-1 OrgID: NOL Parent: NET-207-0-0-0-0 NetName: NETON-BLK NetRange: 220.127.116.11 - 18.104.22.168 NetType: allocation Comment: ADDRESSES WITHIN THIS BLOCK ARE NON-PORTABLE RegDate: 1996-04-05 Updated: 2001-10-11 TechHandle: ZN82-ARIN Source: ARIN OrgID: NOL OrgName: Networks On-Line CanAllocate: Street: Net Star Telecommunications, Inc. Street: 1301 Fannin Street 20th Floor City: Houston State/Prov: TX Country: US PostalCode: 77002 RegDate: 1995-05-15 Updated: 2013-03-07 ReferralServer: rwhois://dns.nstci.com:4321 OrgTechHandle: ZN82-ARIN OrgAdminHandle: ZN82-ARIN OrgAbuseHandle: ZN82-ARIN 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.