AS17161 Marsh Inc.
184.108.40.206/21 - MMC-205-156
NetHandle: NET-205-156-64-0-1 OrgID: MARSHI-1 Parent: NET-205-0-0-0-0 NetName: MMC-205-156 NetRange: 220.127.116.11 - 18.104.22.168 NetType: assignment RegDate: 1995-03-13 Updated: 2013-03-26 Source: ARIN OrgID: MARSHI-1 OrgName: Marsh Inc. CanAllocate: Street: 1166 Avenue of the Americas City: New York State/Prov: NY Country: US PostalCode: 10036 RegDate: 2000-08-01 Updated: 2009-05-13 OrgTechHandle: PMC10-ARIN OrgAdminHandle: PMC288-ARIN OrgAbuseHandle: SRT1-ARIN Source: ARIN POCHandle: PMC288-ARIN IsRole: N LastName: McGlynn FirstName: Patrick Street: 121 River St City: Hoboken State/Prov: NJ Country: US PostalCode: 07030 RegDate: 2006-07-11 Updated: 2018-07-25 OfficePhone: +1-201-284-3021 Mailbox: firstname.lastname@example.org Source: ARIN POCHandle: PMC10-ARIN IsRole: N LastName: McCarthy FirstName: Paul Street: 121 River St Street: 3rd fl City: Hoboken State/Prov: NJ Country: US PostalCode: 07030 RegDate: 2003-05-27 Updated: 2016-11-04 OfficePhone: +1-201-284-3139 Mailbox: email@example.com Mailbox: firstname.lastname@example.org Source: ARIN POCHandle: SRT1-ARIN IsRole: N LastName: Tilis FirstName: Seth Street: 121 River St City: Hoboken State/Prov: NJ Country: US PostalCode: 07030 RegDate: 2004-09-27 Updated: 2019-07-22 OfficePhone: +1-201-284-3033 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.