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Unless ATC says otherwise, which transponder code does a VFR pilot use?

1200, the VFR code.

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  1. 1200 ✔
  2. 7600
  3. 7700

Why: The AIM says to set code 1200 for VFR unless ATC assigns another. 7600 means lost radio and 7700 means emergency, so they are never for routine flying.

Huh, didn't know that: When a transponder is required, pilots must keep altitude reporting on unless ATC says otherwise.

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References

Answer: 1200. The AIM says to set code 1200 for VFR unless ATC assigns another. 7600 means lost radio and 7700 means emergency, so they are never for routine flying.

  1. AIM 4-1 Services Available to Pilots www.faa.gov/air_traffic/publications/atpubs/aim_html/chap4_section_1.html
    adjust transponder/ADS-B to reply on Mode 3/A Code 1200 regardless of altitude.
    Checked 2026-10-09.

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