AS14988 Botswana Telecommunications Corporation
2c0f:ff00::/48 - BTCL_AS14988
inet6num: 2c0f:ff00::/48 netname: BTCL_AS14988 descr: BTCL INTERNAL country: BW admin-c: IO10-AFRINIC admin-c: BM16-AFRINIC admin-c: OSD1-AFRINIC tech-c: IO10-AFRINIC tech-c: BM16-AFRINIC tech-c: OSD1-AFRINIC status: ASSIGNED PA notify: ***@btc.bw mnt-by: TF-196-1-130-0-196-1-133-255-MNT changed: ***@btc.bw 20150506 changed: ***@btc.bw 20190107 source: AFRINIC
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.