FAQ: 32-bit ASN

Show or Hide answer How can I get a 32-bit ASN?

You should fill in the Resource Request Form (requires authentication).

You will receive a 32-bit ASN by default, unless you specifically request a 16-bit ASN and explain why a 32-bit ASN cannot be used.

Here you can see the information that will be required for your request.

Show or Hide answer How do I apply for a temporary 32-bit ASN to test my network?

It is possible to request temporary resources for deployment for a specific time-limited purpose. For details, see the FAQ: Temporary Internet Number Assignment.

Show or Hide answer Will the assignment policy change?

No, the criteria for assignment of an ASN will not change.

See RIPE Policy Proposal 2005-12 for more details.

Show or Hide answer Are 32-bit ASNs only available in the RIPE NCC service region?

No. All of the Regional Internet Registries (RIRs) can assign them.

Show or Hide answer Where can I find out more about 32-bit ASNs?

The following Internet Engineering Task Force (IETF) documents offer more information about 32-bit ASNs:

BGP Support for Four-octet AS Number Space (RFC 4893)
This document describes the changes to the BGP protocol and the 16-bit ASN to 32-bit ASN transition mechanism.

A list of operating system versions compatible with 32-bit ASNs is available at: