What is the common 2 meter APRS frequency?

Could you please clarify what you mean by "2 meter APRS frequency"? It seems there might be a misunderstanding in the terminology used. Typically, when discussing radio frequencies, we might talk about 2-meter bands, which are commonly used for amateur radio communications. However, APRS, or Automatic Packet Reporting System, is a technology used for sending digital messages and data over radio frequencies, often in conjunction with GPS tracking. Assuming you're asking about a commonly used frequency for APRS within the 2-meter band for amateur radio, there isn't a universally agreed-upon single frequency. APRS can operate on various frequencies within the amateur radio bands, including the 2-meter band. The exact frequency used would depend on regional regulations, local frequency coordination, and the specific needs of the users. In general, it's best to consult local amateur radio clubs or regulatory bodies to determine the appropriate frequencies for APRS use in your area. They can provide guidance on frequency allocations, regulations, and best practices for responsible use of the radio spectrum.