89.37.176.0/21
AS1653 SUNET Swedish University Network
89.37.176.0/21 - SE-SUNET-20051129
Whois Details
inetnum: 89.37.176.0 - 89.37.183.255 netname: SE-SUNET-20051129 country: SE org: ORG-SA58-RIPE admin-c: DUMY-RIPE tech-c: DUMY-RIPE status: ALLOCATED PA notify: noc@sunet.se mnt-by: RIPE-NCC-HM-MNT mnt-by: SUNET-MNT mnt-lower: SUNET-MNT mnt-routes: SUNET-MNT mnt-irt: IRT-SUNET-CERT created: 2014-12-09T12:17:54Z last-modified: 2016-08-25T07:26:28Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** organisation: ORG-SA58-RIPE org-name: SUNET/NORDUnet org-type: LIR address: Dummy address for ORG-SA58-RIPE e-mail: unread@ripe.net abuse-c: NUN6-RIPE mnt-ref: RIPE-NCC-HM-MNT mnt-ref: SUNET-MNT mnt-by: RIPE-NCC-HM-MNT mnt-by: SUNET-MNT created: 2004-04-17T12:04:52Z last-modified: 2018-11-01T14:50:47Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: ****************************
IP address subranges within this IP range
Details
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.