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sensors Mode-S transponder

AAD500

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N7974X · CESSNA 172 Skyhawk · operated by GLIMNS AVIATION SERVICES INC

Hex
AAD500
Octal
52552400
Decimal
11,195,648
Country
US
Tail
N7974X
Type
C172
No current signal · last broadcast 2h ago
Flights observed
96
Distinct callsigns
1
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S AAD500.

Country allocation

The ICAO 24-bit address AAD500 falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 1 distinct

Callsign Airline Flights Last seen
N7974X - 96 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-20 N7974X - Jul 20, 22:20 UTCJul 20, 23:10 UTC50m
2026-07-16 N7974X AZO → AZO Jul 16, 10:45 UTCJul 16, 11:10 UTC25m
2026-07-16 N7974X AZO → AZO Jul 16, 00:10 UTCJul 16, 01:05 UTC55m
2026-07-15 N7974X - Jul 15, 21:45 UTCJul 15, 23:00 UTC1h 15m
2026-07-15 N7974X - Jul 15, 18:25 UTCJul 15, 19:40 UTC1h 15m
2026-07-15 N7974X - Jul 15, 14:25 UTCJul 15, 15:05 UTC40m
2026-07-15 N7974X - Jul 15, 01:55 UTCJul 15, 04:35 UTC2h 40m
2026-07-14 N7974X - Jul 14, 23:40 UTCJul 15, 00:35 UTC55m
2026-07-14 N7974X - Jul 14, 21:50 UTCJul 14, 22:35 UTC45m
2026-07-14 N7974X AZO → AZO Jul 14, 19:05 UTCJul 14, 20:05 UTC1h 0m
2026-07-14 N7974X - Jul 14, 12:30 UTCJul 14, 14:05 UTC1h 35m
2026-07-14 N7974X - Jul 14, 00:30 UTCJul 14, 01:25 UTC55m
2026-07-13 N7974X - Jul 13, 19:05 UTCJul 13, 20:05 UTC1h 0m
2026-07-13 N7974X - Jul 13, 17:05 UTCJul 13, 18:10 UTC1h 5m
2026-07-13 N7974X - Jul 13, 15:55 UTCJul 13, 16:05 UTC10m
2026-07-13 N7974X - Jul 13, 15:05 UTCJul 13, 15:25 UTC20m
2026-07-13 N7974X - Jul 13, 12:35 UTCJul 13, 13:35 UTC1h 0m
2026-07-12 N7974X - Jul 12, 16:01 UTCJul 12, 16:10 UTC10m
2026-07-12 N7974X - Jul 12, 13:25 UTCJul 12, 14:25 UTC1h 0m
2026-07-11 N7974X - Jul 11, 18:50 UTCJul 11, 19:00 UTC10m
2026-07-11 N7974X - Jul 11, 16:45 UTCJul 11, 17:45 UTC1h 0m
2026-07-11 N7974X - Jul 11, 15:00 UTCJul 11, 16:00 UTC1h 0m
2026-07-11 N7974X - Jul 11, 12:40 UTCJul 11, 13:55 UTC1h 15m
2026-07-11 N7974X - Jul 11, 00:05 UTCJul 11, 00:55 UTC50m
2026-07-10 N7974X - Jul 10, 20:35 UTCJul 10, 21:30 UTC55m
2026-07-10 N7974X - Jul 10, 17:20 UTCJul 10, 18:30 UTC1h 10m
2026-07-10 N7974X - Jul 10, 14:40 UTCJul 10, 15:45 UTC1h 5m
2026-07-09 N7974X - Jul 9, 00:50 UTCJul 9, 01:00 UTC10m
2026-07-09 N7974X - Jul 9, 00:00 UTCJul 9, 00:10 UTC10m
2026-07-08 N7974X - Jul 8, 21:30 UTCJul 8, 22:40 UTC1h 10m
2026-07-08 N7974X AZO → AZO Jul 8, 17:25 UTCJul 8, 18:15 UTC50m
2026-07-08 N7974X - Jul 8, 14:35 UTCJul 8, 15:35 UTC1h 0m
2026-07-08 N7974X AZO → AZO Jul 8, 12:10 UTCJul 8, 12:45 UTC35m
2026-07-06 N7974X - Jul 6, 21:30 UTCJul 6, 22:50 UTC1h 20m
2026-07-06 N7974X - Jul 6, 14:25 UTCJul 6, 14:50 UTC25m
2026-07-01 N7974X AZO → AZO Jul 1, 11:50 UTCJul 1, 12:30 UTC40m
2026-06-30 N7974X AZO → AZO Jun 30, 12:45 UTCJun 30, 13:25 UTC40m
2026-06-27 N7974X - Jun 27, 17:44 UTCJun 27, 19:00 UTC1h 15m
2026-06-26 N7974X - Jun 26, 12:24 UTCJun 26, 13:10 UTC45m
2026-06-22 N7974X - Jun 22, 12:19 UTCJun 22, 13:14 UTC55m
2026-06-20 N7974X - Jun 20, 12:45 UTCJun 20, 14:14 UTC1h 30m
2026-06-19 N7974X - Jun 19, 20:09 UTCJun 19, 21:39 UTC1h 30m
2026-06-19 N7974X AZO → AZO Jun 19, 14:34 UTCJun 19, 15:29 UTC55m
2026-06-13 N7974X - Jun 13, 16:40 UTCJun 13, 17:40 UTC1h 0m
2026-06-09 N7974X - Jun 9, 21:20 UTCJun 9, 21:55 UTC35m
2026-06-08 N7974X - Jun 8, 17:15 UTCJun 8, 18:00 UTC45m
2026-06-08 N7974X AZO → AZO Jun 8, 14:55 UTCJun 8, 15:40 UTC45m
2026-06-07 N7974X - Jun 7, 23:25 UTCJun 7, 23:45 UTC20m
2026-06-07 N7974X - Jun 7, 16:40 UTCJun 7, 17:05 UTC25m
2026-06-05 N7974X - Jun 5, 15:15 UTCJun 5, 15:55 UTC40m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the N7974X page for operator, model, and routing details .

Mode-S AAD500 frequently asked

What is Mode-S code AAD500?
AAD500 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N7974X.
Where is Mode-S AAD500 registered?
Mode-S code AAD500 is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is AAD500 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AAD500, octal 52552400, decimal 11,195,648.
What flights does AAD500 operate?
Mode-S AAD500 has broadcast 1 distinct callsign, including N7974X.