62.73.122.0/23

inetnum:        62.73.122.0 - 62.73.123.255
netname:        BTC-BROADBAND-NET-39
descr:          BTC Broadband Service
country:        BG
admin-c:        DUMY-RIPE
tech-c:         DUMY-RIPE
status:         ASSIGNED PA
mnt-by:         BT95-ADM
created:        2015-07-02T11:32:19Z
last-modified:  2015-07-02T11:32:19Z
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-BTCP1-RIPE
org-name:       Bulgarian Telecommunications Company Plc.
org-type:       LIR
address:        Dummy address for ORG-BTCP1-RIPE
e-mail:         unread@ripe.net
abuse-c:        BTC3-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        BT95-ADM
mnt-ref:        MNT-GNET
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         BT95-ADM
created:        2004-04-17T11:01:01Z
last-modified:  2017-06-15T20:22:42Z
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 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.