NAAN Registry Records

The NAAN Registry maintains the authoritative list of Name Assigning Authority Numbers which are the numeric prefixes used by ARK identifiers. A NAAN may be allocated to an organization on request.

There are currently NAAN records, with the first issued on and the most recent on .

Figure 1. Number of NAAN records registered over time and global distribution of NAAN registrations. The first registration was recorded on and the most recent on .

A list of the NAAN records is provided below. This list is also available in other formats for programmatic use:

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Table 1. A listing of the NAAN records maintained by the NAAN registry. The public information for a record may be seen below by clicking on the corresponding prefix (NAAN) value. The search box can be used to filter the displayed records.