166.172.0.0/17 - NETBLK-CDPD-B

ID

NETBLK-CDPD-B

ASN

AS16572 AT&T Mobility LLC

Registry

arin

Whois Details

NetHandle:      NET-166-128-0-0-1
OrgID:          SPC-10
Parent:         NET-166-0-0-0-0
NetName:        NETBLK-CDPD-B
NetRange:       166.128.0.0 - 166.255.255.255
NetType:        assignment
RegDate:        1993-07-09
Updated:        2005-01-07
TechHandle:     WDSPC-ARIN
Source:         ARIN

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.