General Info




SURFnet bv


AS1101 SURFnet bv



Whois Details

inet6num:         2001,67c,6ec,,/48
netname:          onweer6
country:          NL
org:              ORG-Sb3-RIPE
admin-c:          WB311-RIPE
tech-c:           WB311-RIPE
status:           ASSIGNED PI
mnt-by:           RIPE-NCC-END-MNT
mnt-by:           AS1101-MNT
mnt-routes:       AS1101-MNT
mnt-domains:      AS1101-MNT
created:          2014-09-01T13,33,11Z
last-modified:    2016-04-14T09,51,53Z
source:           RIPE

organisation:     ORG-Sb3-RIPE
org-name:         SURFnet bv
org-type:         LIR
address:          P.O. Box 19035
address:          3501 DA
address:          Utrecht
address:          NETHERLANDS
phone:            +31302305305
fax-no:           +31302305329
admin-c:          HT3384-RIPE
admin-c:          MK512-RIPE
admin-c:          SNS1-RIPE
admin-c:          JK9622-RIPE
admin-c:          RVR19-RIPE
admin-c:          WB311-RIPE
admin-c:          NO17-RIPE
admin-c:          RS957-RIPE
admin-c:          SM12780-RIPE
abuse-c:          SNS1-RIPE
mnt-ref:          RIPE-NCC-HM-MNT
mnt-ref:          AS1103-MNT
mnt-by:           RIPE-NCC-HM-MNT
mnt-by:           AS1103-MNT
created:          2004-04-17T11,43,29Z
last-modified:    2016-06-03T08,16,27Z
source:           RIPE

person:           Wim Biemolt
address:          SURFnet bv
address:          P.O. Box 19035
address:          NL - 3501 DA Utrecht
address:          The Netherlands
phone:            +31 88 7873000
nic-hdl:          WB311-RIPE
remarks:          http,//
mnt-by:           SN-LIR-MNT
created:          1970-01-01T00,00,00Z
last-modified:    2015-01-07T21,14,52Z
source:           RIPE

route6:           2001,67c,6ec,,/48
descr:            AS1101 IPv6 block
origin:           AS1101
mnt-by:           AS1101-MNT
created:          2014-09-04T07,54,08Z
last-modified:    2014-09-04T07,54,08Z
source:           RIPE


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.