AS1133 SURFnet bv


2001:67c:2564::/48 - UTNET-IPv6




Universiteit Twente


AS1133 SURFnet bv





Whois Details

inet6num:         2001,67c,2564,,/48
netname:          UTNET-IPv6
country:          NL
org:              ORG-UT18-RIPE
sponsoring-org:   ORG-Sb3-RIPE
admin-c:          GM3191-RIPE
tech-c:           GM3191-RIPE
status:           ASSIGNED PI
mnt-by:           RIPE-NCC-END-MNT
mnt-by:           SN-LIR-MNT
mnt-routes:       AS1103-MNT
mnt-domains:      SN-LIR-MNT
created:          2011-11-04T16,07,03Z
last-modified:    2016-04-14T08,42,34Z
source:           RIPE

organisation:     ORG-UT18-RIPE
org-name:         Universiteit Twente
org-type:         OTHER
descr:            Drienerlolaan 5
descr:            P.O. Box 217
descr:            NL - 7500 AE Enschede
address:          The Netherlands
phone:            +31 53 489 2311
admin-c:          Ins20-RIPE
tech-c:           Ins20-RIPE
mnt-by:           SN-LIR-MNT
mnt-ref:          SN-LIR-MNT
abuse-c:          SNS1-RIPE
created:          2015-05-27T07,46,16Z
last-modified:    2015-05-27T07,46,16Z
source:           RIPE

person:           Gert Meijerink
address:          Universiteit Twente
address:          P.O. Box 217
address:          NL-7500 AE Enschede
address:          The Netherlands
phone:            +31 53 892326
nic-hdl:          GM3191-RIPE
remarks:          This object is no longer maintained by
remarks:          and is or may soon become obsolete.
mnt-by:           SN-LIR-MNT
mnt-by:           SN-LIR-MNT
created:          1970-01-01T00,00,00Z
last-modified:    2001-09-22T07,19,05Z
source:           RIPE

route6:           2001,67c,2564,,/48
descr:            University Twente IPv6
origin:           AS1133
mnt-by:           AS1103-MNT
mnt-routes:       AS1103-MNT
created:          2011-11-11T11,26,32Z
last-modified:    2011-11-11T11,26,32Z
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.

Try our JSON API from the command line

Get started with curl or check out the documentation to read more.

Free for small projects. Pay as you grow.

Our API is free for up to 1,000 requests per day. Our plans suits the company of every size.

Plans & Pricing
A million uses. Easy to implement.

From filtering out bot traffic, to performing bulk IP geolocation, we’ve got it all covered.