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sensors Mode-S transponder

AADC7A

ICAO 24-bit transponder address · allocated to United States

Hex
AADC7A
Octal
52556172
Decimal
11,197,562
Country
US
No current signal · last broadcast Jul 16, 23:59 UTC
Flights observed
108
Distinct callsigns
1
Country
US
Last broadcast
Jul 16, 23:59 UTC

Last known position

Most recent position reported by Mode-S AADC7A.

Country allocation

The ICAO 24-bit address AADC7A 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
N79949 - 108 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 N79949 - Jul 16, 22:59 UTCJul 16, 23:59 UTC1h 0m
2026-07-16 N79949 - Jul 16, 21:19 UTCJul 16, 22:19 UTC1h 0m
2026-07-16 N79949 - Jul 16, 18:40 UTCJul 16, 18:55 UTC15m
2026-07-16 N79949 - Jul 16, 17:35 UTCJul 16, 17:54 UTC20m
2026-07-16 N79949 - Jul 16, 14:50 UTCJul 16, 15:00 UTC10m
2026-07-16 N79949 - Jul 16, 13:40 UTCJul 16, 13:54 UTC15m
2026-07-16 N79949 - Jul 16, 10:20 UTCJul 16, 12:20 UTC2h 0m
2026-07-15 N79949 USA → USA Jul 15, 23:20 UTCJul 16, 01:00 UTC1h 40m
2026-07-15 N79949 - Jul 15, 19:20 UTCJul 15, 19:55 UTC35m
2026-07-15 N79949 - Jul 15, 18:25 UTCJul 15, 18:40 UTC15m
2026-07-15 N79949 - Jul 15, 17:05 UTCJul 15, 17:15 UTC10m
2026-07-15 N79949 - Jul 15, 15:50 UTCJul 15, 16:05 UTC15m
2026-07-15 N79949 - Jul 15, 14:15 UTCJul 15, 15:00 UTC45m
2026-07-14 N79949 - Jul 14, 23:00 UTCJul 14, 23:40 UTC40m
2026-07-11 N79949 - Jul 11, 13:30 UTCJul 11, 15:30 UTC2h 0m
2026-07-10 N79949 - Jul 10, 18:15 UTCJul 10, 18:30 UTC15m
2026-07-10 N79949 USA → SRW Jul 10, 16:30 UTCJul 10, 16:50 UTC20m
2026-07-10 N79949 SRW → USA Jul 10, 14:40 UTCJul 10, 15:20 UTC40m
2026-07-10 N79949 - Jul 10, 13:45 UTCJul 10, 13:55 UTC10m
2026-07-09 N79949 - Jul 9, 17:30 UTCJul 9, 17:40 UTC10m
2026-07-09 N79949 - Jul 9, 16:15 UTCJul 9, 16:30 UTC15m
2026-07-09 N79949 - Jul 9, 13:40 UTCJul 9, 13:50 UTC10m
2026-07-09 N79949 - Jul 9, 12:10 UTCJul 9, 12:25 UTC15m
2026-07-08 N79949 - Jul 8, 16:10 UTCJul 8, 17:40 UTC1h 30m
2026-07-08 N79949 - Jul 8, 13:50 UTCJul 8, 14:55 UTC1h 5m
2026-07-08 N79949 USA → USA Jul 8, 11:40 UTCJul 8, 13:00 UTC1h 20m
2026-07-07 N79949 - Jul 7, 18:00 UTCJul 7, 18:10 UTC10m
2026-07-07 N79949 - Jul 7, 17:00 UTCJul 7, 17:20 UTC20m
2026-07-07 N79949 USA → USA Jul 7, 12:20 UTCJul 7, 12:50 UTC30m
2026-07-06 N79949 USA → USA Jul 6, 20:45 UTCJul 6, 21:50 UTC1h 5m
2026-07-06 N79949 - Jul 6, 19:45 UTCJul 6, 19:55 UTC10m
2026-07-06 N79949 - Jul 6, 18:55 UTCJul 6, 19:10 UTC15m
2026-07-06 N79949 - Jul 6, 17:25 UTCJul 6, 18:00 UTC35m
2026-07-06 N79949 USA → USA Jul 6, 12:40 UTCJul 6, 13:55 UTC1h 15m
2026-07-03 N79949 USA → USA Jul 3, 16:30 UTCJul 3, 16:55 UTC25m
2026-07-03 N79949 - Jul 3, 13:45 UTCJul 3, 15:00 UTC1h 15m
2026-07-02 N79949 - Jul 2, 13:45 UTCJul 2, 13:55 UTC10m
2026-07-02 N79949 - Jul 2, 11:15 UTCJul 2, 12:05 UTC50m
2026-07-01 N79949 USA → USA Jul 1, 20:30 UTCJul 1, 21:45 UTC1h 15m
2026-07-01 N79949 - Jul 1, 13:55 UTCJul 1, 15:40 UTC1h 45m
2026-07-01 N79949 - Jul 1, 12:10 UTCJul 1, 12:50 UTC40m
2026-06-30 N79949 - Jun 30, 17:05 UTCJun 30, 17:15 UTC10m
2026-06-30 N79949 - Jun 30, 15:50 UTCJun 30, 16:00 UTC10m
2026-06-30 N79949 - Jun 30, 12:15 UTCJun 30, 13:05 UTC50m
2026-06-30 N79949 USA → SRW Jun 30, 11:25 UTCJun 30, 11:40 UTC15m
2026-06-30 N79949 USA → USA Jun 30, 02:00 UTCJun 30, 02:55 UTC55m
2026-06-29 N79949 - Jun 29, 21:39 UTCJun 29, 21:50 UTC10m
2026-06-29 N79949 - Jun 29, 20:40 UTCJun 29, 20:54 UTC15m
2026-06-29 N79949 - Jun 29, 17:45 UTCJun 29, 17:55 UTC10m
2026-06-27 N79949 - Jun 27, 16:14 UTCJun 27, 16:24 UTC10m

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.

Mode-S AADC7A frequently asked

What is Mode-S code AADC7A?
AADC7A is an ICAO 24-bit transponder address. Allocated to United States.
Where is Mode-S AADC7A registered?
Mode-S code AADC7A 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 AADC7A broadcasting right now?
No active broadcast right now. Last signal was Jul 16, 23:59 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AADC7A, octal 52556172, decimal 11,197,562.
What flights does AADC7A operate?
Mode-S AADC7A has broadcast 1 distinct callsign, including N79949.