AS7018 AT&T Services, Inc.
220.127.116.11/19 - BELLSNET-BLK16
NetHandle: NET-72-144-0-0-1 OrgID: AC-3873 Parent: NET-72-0-0-0-0 NetName: BELLSNET-BLK16 NetRange: 18.104.22.168 - 22.214.171.124 NetType: allocation OriginAS: 6389 RegDate: 2005-08-11 Updated: 2018-09-10 Source: ARIN OrgID: AC-3873 OrgName: AT&T Corp. CanAllocate: Street: 16631 NE 72nd Way Street: ATTN: IP Management City: Redmond State/Prov: WA Country: US PostalCode: 98052 Comment: For policy abuse issues contact firstname.lastname@example.org Comment: For all subpoena, Internet, court order related matters and emergency requests contact Comment: 11760 US Highway 1 Comment: North Palm Beach, FL 33408 Comment: Main Number: 800-635-6840 Comment: Fax: 888-938-4715 RegDate: 2018-08-31 Updated: 2018-09-18 OrgTechHandle: IPOPE3-ARIN OrgAdminHandle: IPOPE3-ARIN OrgAbuseHandle: IPOPE3-ARIN Source: ARIN POCHandle: IPOPE3-ARIN IsRole: Y LastName: IP Operations FirstName: Street: 575 Morosgo Drive City: Atlanta State/Prov: GA Country: US PostalCode: 30324 RegDate: 2010-09-16 Updated: 2019-01-09 OfficePhone: +1-888-510-5545 Mailbox: email@example.com Mailbox: firstname.lastname@example.org 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.