165.237.0.0/16

NetHandle:      NET-165-237-0-0-1
OrgID:          CC-3517
Parent:         NET-165-0-0-0-0
NetName:        TWC-NET-B
NetRange:       165.237.0.0 - 165.237.255.255
NetType:        allocation
RegDate:        1993-09-30
Updated:        2018-11-26
Source:         ARIN


OrgID:          CC-3517
OrgName:        Charter Communications Inc
CanAllocate:    
Street:         6399 S. Fiddler's Green Circle
City:           Greenwood Village
State/Prov:     CO
Country:        US
PostalCode:     80111
Comment:        Legacy Time Warner Cable IP Assets
RegDate:        2018-10-10
Updated:        2018-11-27
OrgAbuseHandle: ABUSE10-ARIN
OrgAdminHandle: IPADD1-ARIN
OrgTechHandle:  IPADD1-ARIN
Source:         ARIN


POCHandle:      ABUSE10-ARIN
IsRole:         Y
LastName:       Abuse
FirstName:      
Street:         P.O. Box 4987
City:           Greenwood Village
State/Prov:     CO
Country:        US
PostalCode:     80155
RegDate:        2002-08-25
Updated:        2020-03-03
OfficePhone:    +1-855-222-7342
Mailbox:        abuse@charter.net
Source:         ARIN


POCHandle:      IPADD1-ARIN
IsRole:         Y
LastName:       IPAddressing
FirstName:      
Street:         6399 S Fiddlers Green Circle
City:           Greenwood Village
State/Prov:     CO
Country:        US
PostalCode:     80111
RegDate:        2002-09-10
Updated:        2019-10-14
OfficePhone:    +1-314-288-3111
Mailbox:        ipaddressing@chartercom.com
Source:         ARIN

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.