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Frequently visited

Frequently asked questions

  • I am looking for a domain name registrant. Where can I look it up?

    The Whois is an easy-to-use tool for checking the availability of a .nl domain name. If the domain name is already taken, you can see who has registered it.

    On the page looking up a domain name you will find more information about what a domain name is, how the Whois works and how the privacy of personal data is protected. Alternatively, you can go straight to look for a domain name via the Whois.

  • I would like to transfer my domain name to another registrar. What is the procedure?

    To get your domain name transferred, you need the token (unique ID number) for your domain name. Your existing registrar has the token and is obliged to give it to you within five days, if you ask for it. The procedure for changing your registrar is described on the page transferring your domain name.

  • The details registered about me/my company are incorrect or out of date. How can I get them updated?

    To update the contact details associated with your domain name, you need to contact your registrar. Read more about updating contact details.

  • Why is my domain name in quarantine?

    When a domain name is cancelled, we aren't told the reason, so we can't tell you. You'll need to ask your registrar. The advantage of quarantine is that, if a name's cancelled by mistake, you can always get it back.

    One common reason is that the contract between you and your registrar says you've got to renew the registration every year. If you haven't set up automatic renewal and you don't renew manually, the registration will expire.

  • Ik heb een klacht over mijn provider/registrar. Kan ik daarvoor bij SIDN terecht?

    Wanneer je een klacht hebt over of een geschil met je registrar dan zijn er verschillende mogelijkheden om tot een oplossing te komen. Hierover lees je meer op pagina klacht over registrar. SIDN heeft geen formele klachtenprocedure voor het behandelen van een klacht over jouw registrar.

  • What conditions do I have to meet as a registrar?

    Would you like to be able to register domain names for customers or for your own organisation by dealing directly with SIDN? If so, you can become a .nl registrar. Read more about the conditions and how to apply for registrar status on the page becoming a registrar.

More frequently asked questions

RIPE NCC starts issuing IPv6 addresses from second /12 block

New 2a10/12 address block assigned by IANA

  • Tuesday 20 August 2019

This summer, IANA assigned a second block of /12 IPv6 addresses to RIPE NCC, the Regional Internet Registry (RIR) for greater Europe and western Asia. Our region is the first of the five to receive a second /12 block for use.

At the moment, anyone in the region who uses IPv6 probably has an address prefix beginning with '2a0', the first /12 block assigned to RIPE NCC. Soon, addresses with '2a1' prefixes will enter use as well. This table shows the IPv6 address blocks so far assigned by the global administrator IANA, and the assignment dates. You'll notice that, until 2005, the assigned blocks (starting '2001:') were considerably smaller than /12. Small is a relative concept, though. As explained in our IPv6 inventory, the IPv6 address space is enormous.

Smart assignment

The fact that RIPE NCC is now on to its second /12 address block should not, therefore, be seen as indicating that we are well on the way to using up all the IPv6 addresses. It's simply a reflection of the way that RIPE NCC allocates blocks within its /12 address space to internet access providers and large organisations that administer IPv6 blocks (Local Internet Registries, or LIRs). A much larger margin is always reserved around each allocated block to allow scope for extension at a later date without making the route tables bigger. For further details, see this blog post.