Skip to page content
Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

The latest general information on the Coronavirus (COVID-19) is available on For FAA-specific COVID-19 resources, please visit
United States Department of TransportationUnited States Department of Transportation

28 Day NASR Subscription - Effective November 4, 2021

This page contains the 28 Day NASR Subscription data effective November 4, 2021.


The following data are formatted in either AIXM 5.0 or AIXM 5.1.

  • AIXM 5.1 versions of the Navigation Aid, Airport, ASOS/AWOS, and Airway subscriber files are available. Download
  • AIXM 5.0 versions of Special Activity Airspace (SAA) subscriber files are available. Download

Shape File Data

The following class airspace definitions are provided in ESRI Shape format.

Frequency Data

The following comprehensive Frequency data is provided in a CSV file format.

Legacy (TXT) Data

The following data are formatted in a flat text file format.

The layout data for the Legacy (TXT) formats are available as a single download, or individually.

Page last modified: