Reports

5XX Reports

Below are 5XX-NXX assignment listings and reports.

5XX-NXX Available Codes Report - Provides an up-to-date list of 5XX-NXX codes available for assignment by NPA. Updated real-time.

5XX-NXX Utilized Codes Report - Provides an up-to-date list of central office codes assigned or unavailable for assignment by NPA. Updated real-time.

5XX-NXX Aging Codes Report - Provides a list of 5XX-NXX codes that have been recently returned or reclaimed and will be made available after a 45-day aging period. Updated real-time.

All 5XX Codes Report (xlsx) - Provides an updated listing of assigned, available and unavailable 5XX-NXX codes by NPA in a downloadable Excel format. Updated daily.

All 5XX Codes Report (txt) - Provides an updated listing of assigned, available and unavailable 5XX-NXX codes by NPA in a downloadable text file. Updated daily.

The 5XX NPA exhaust projection is available under NRUF Reports.