General Info

ID

BT-ES-AS12541-INFRA

Description

BT Spain AS12541 infrastructure

ASN

AS12541 BT ESPANA, COMPANIA DE SERVICIOS GLOBALES DE TELECOMUNICACIONES, SA

Country
Spain
Registry

ripe

Whois Details

inet6num:         2001,ac0,30fd,,/48
netname:          BT-ES-AS12541-INFRA
descr:            BT Spain AS12541 infrastructure
country:          ES
admin-c:          RM13024-RIPE
tech-c:           RM13024-RIPE
status:           ASSIGNED
mnt-by:           BTTEL-MNT
mnt-lower:        BTIGS-MNT
mnt-routes:       BTIGS-MNT
created:          2012-03-12T08,59,05Z
last-modified:    2016-05-26T06,57,44Z
source:           RIPE

person:           Raul Mateo
address:          BT Spain
address:          Isabel Colbrand, 8
address:          28050 MADRID
address:          SPAIN
phone:            +34 91 270 6234
fax-no:           +34 91 270 6310
e-mail:           raul.mateo@bt.com
nic-hdl:          RM13024-RIPE
mnt-by:           BTTEL-MNT
created:          2012-03-07T14,40,19Z
last-modified:    2012-03-07T14,40,19Z
source:           RIPE

route6:           2001,ac0,30fd,,/48
descr:            BT SPAIN AS12541 INFRA aggregated route
notify:           bt.igs.secondlevel@bt.com
origin:           AS12541
mnt-by:           BTIGS-MNT
created:          2012-03-12T09,04,38Z
last-modified:    2016-05-26T06,50,04Z
source:           RIPE

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.