AS174 Cogent Communications
22.214.171.124/16 - CROSFIELD
inetnum: 126.96.36.199 - 188.8.131.52 netname: CROSFIELD descr: imported inetnum object for CEL country: JP admin-c: TM33-AP tech-c: TM33-AP status: ALLOCATED PORTABLE remarks: ---------- remarks: imported from ARIN object: remarks: remarks: inetnum: 184.108.40.206 - 220.127.116.11 remarks: netname: CROSFIELD remarks: org-id: CEL remarks: status: assignment remarks: tech-c: TMI21-ARIN remarks: reg-date: 1993-03-22 remarks: changed: email@example.com 20030520 remarks: source: ARIN remarks: remarks: ---------- notify: firstname.lastname@example.org mnt-by: APNIC-HM last-modified: 2008-09-04T06:53:31Z source: APNIC person: Taki Miyoko address: 238 Edobori country: JP phone: +81 6225-1824 e-mail: email@example.com nic-hdl: TM33-AP remarks: ---------- remarks: imported from ARIN object: remarks: remarks: poc-handle: TMI21-ARIN remarks: is-role: N remarks: last-name: Miyoko remarks: first-name: Taki remarks: street: 238 Edobori remarks: city: Osaka remarks: state-prov: Nishi-ku remarks: postal-code: 550-0002 remarks: country: JP remarks: mailbox: firstname.lastname@example.org remarks: bus-phone: +81 6225-1824 remarks: reg-date: 2003-05-15 remarks: changed: email@example.com 20030515 remarks: source: ARIN remarks: remarks: ---------- notify: firstname.lastname@example.org mnt-by: MNT-ERX-CROSFIELDELE-NON-JP last-modified: 2008-09-04T07:31:15Z source: APNIC
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.