AS36733 Comcast Cable Communications, LLC
188.8.131.52/19 - COMCAST-BUSINESS-BLK1
NetHandle: NET-64-235-160-0-1 OrgID: CCCS Parent: NET-64-0-0-0-0 NetName: COMCAST-BUSINESS-BLK1 NetRange: 184.108.40.206 - 220.127.116.11 NetType: allocation OriginAS: 13385 RegDate: 2002-09-16 Updated: 2016-08-31 Source: ARIN OrgID: CCCS OrgName: Comcast Cable Communications, LLC CanAllocate: Street: 1800 Bishops Gate Blvd City: Mt Laurel State/Prov: NJ Country: US PostalCode: 08054 RegDate: 2001-09-18 Updated: 2017-01-28 OrgTechHandle: IC161-ARIN OrgAdminHandle: IC161-ARIN OrgAbuseHandle: NAPO-ARIN Source: ARIN POCHandle: IC161-ARIN IsRole: Y LastName: Comcast Cable Communications Inc FirstName: Street: 1800 Bishops Gate Blvd City: Mount Laurel State/Prov: NJ Country: US PostalCode: 08054 RegDate: 2002-06-12 Updated: 2019-02-14 OfficePhone: +1-856-317-7200 Mailbox: CNIPEO-Ipfirstname.lastname@example.org Source: ARIN POCHandle: NAPO-ARIN IsRole: Y LastName: Network Abuse and Policy Observance FirstName: Street: 1800 Bishops Gate Blvd City: Mount Laurel State/Prov: NJ Country: US PostalCode: 08054 RegDate: 2002-09-30 Updated: 2019-02-14 OfficePhone: +1-888-565-4329 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.