Reports

5YY Reports

Below are NPA 500, 533, and 544 assignment listings.

The 5YY assignment listings are updated real-time and include the latest information available to NANPA. If a 5YY NXX does not appear in these reports, it is not assigned and is not valid for use by any entity.

500 NXX Assignment Listings

533 NXX Assignment Listings

544 NXX Assignment Listings

Below is NANPA correspondence to the INC identifying 5YY NXXs subject to reclamation.

September 2008 Reclamation Letter

April 2008 Reclamation Letter