How can I get a 32-bit ASN?
You should fill in the Autonomous System (AS) Number request form.
Until 1 January 2009, you will need to specify that you want a 32-bit ASN under [INSERT SUPPLEMENTAL COMMENTS]. After this date, you will receive a 32-bit ASN by default.
Supporting information for the request form is available on Supporting Notes for the Autonomous System Number Request Form