What is the correct phraseology for assigning the beacon code 4622?

The correct phraseology for assigning a beacon code is "Squawk four six two two." This terminology is standard in air traffic control communication and is used to instruct a pilot to set their transponder to the specified code. The word "squawk" specifically refers to the action of setting the transponder to transmit the assigned code, which is crucial for radar identification of the aircraft.

Using "squawk" emphasizes the action that the pilot needs to take, ensuring clarity in communication. It's an established term within aviation that indicates what the pilot should do with their transponder, making it the most effective and recognized option for this scenario. Other phrases may not convey the necessary instructions effectively or may not align with the established aviation communication protocols.