AS3900 YHC Corporation
188.8.131.52/21 - CSD-DC1-PUBLIC1
NetHandle: NET-68-69-112-0-1 OrgID: CSD-77 Parent: NET-68-0-0-0-0 NetName: CSD-DC1-PUBLIC1 NetRange: 184.108.40.206 - 220.127.116.11 NetType: assignment OriginAS: 3900 RegDate: 2013-04-09 Updated: 2013-04-09 Source: ARIN OrgID: CSD-77 OrgName: Communication Service for the Deaf, Inc. CanAllocate: Street: 200 West Cesar Chavez St Street: Suite 650 City: Austin State/Prov: TX Country: US PostalCode: 78701 RegDate: 2009-07-28 Updated: 2015-04-02 OrgAbuseHandle: ITOPE45-ARIN OrgTechHandle: ITOPE45-ARIN OrgAdminHandle: ITOPE45-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.