ATC 1

"Gamma Station Control, reading multiple pings below the orbital defense grid."

- ATC 1 upon the appearances of a Covenant fleet in low Reach orbit.

ATC 1 was the callsign of a UNSC Navy operator stationed on the planet Reach.

Trivia
ATC 1 was also heard during the Halo: Reach Announcement Trailer saying the same line.

List of appearances

 * Halo: Reach Announcement Trailer
 * Halo: Reach