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sensors Mode-S transponder

A7A9C5

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N593NN · BOMBARDIER Regional Jet CRJ-900 · operated by AMERICAN AIRLINES INC

Hex
A7A9C5
Octal
51724705
Decimal
10,987,973
Country
US
Tail
N593NN
Type
CRJ9
No current signal · last broadcast 1h ago
Flights observed
564
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S A7A9C5.

Country allocation

The ICAO 24-bit address A7A9C5 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 20 distinct

Callsign Airline Flights Last seen
JIA5104 PSA Airlines 8 2026-05-07
JIA5444 - 7 2026-07-11
JIA5406 - 7 2026-07-08
JIA5640 - 6 2026-06-19
JIA5475 PSA Airlines 6 2026-05-22
JIA5386 PSA Airlines 6 2026-06-10
JIA5313 - 6 2026-07-09
JIA5308 PSA Airlines 6 2026-06-07
JIA5268 - 6 2026-06-17
JIA5195 - 6 2026-06-30
JIA5185 - 6 2026-07-01
JIA5094 PSA Airlines 6 2026-06-22
JIA5644 PSA Airlines 5 2026-06-19
JIA5639 PSA Airlines 5 2026-05-18
JIA5628 - 5 2026-06-23
JIA5593 - 5 2026-06-30
JIA5364 PSA Airlines 5 2026-06-10
JIA5290 - 5 2026-07-14
JIA5228 PSA Airlines 5 2026-06-14
JIA5225 - 5 2026-06-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 JIA5290 - Jul 14, 14:15 UTCJul 14, 15:15 UTC1h 0m
2026-07-14 JIA5216 - Jul 14, 11:35 UTCJul 14, 13:00 UTC1h 25m
2026-07-14 JIA5133 - Jul 14, 03:50 UTCJul 14, 04:40 UTC50m
2026-07-14 JIA5133 CLT → HSV Jul 14, 03:45 UTCJul 14, 04:39 UTC54m
2026-07-13 JIA5030 - Jul 13, 23:50 UTCJul 14, 01:15 UTC1h 25m
2026-07-13 JIA5030 - Jul 13, 20:50 UTCJul 13, 22:25 UTC1h 35m
2026-07-13 JIA549A - Jul 13, 18:05 UTCJul 13, 19:15 UTC1h 10m
2026-07-13 JIA5490 DAY → CLT Jul 13, 18:05 UTCJul 13, 19:14 UTC1h 9m
2026-07-13 JIA5163 - Jul 13, 14:55 UTCJul 13, 16:50 UTC1h 55m
2026-07-13 JIA5157 - Jul 13, 11:25 UTCJul 13, 13:20 UTC1h 55m
2026-07-13 JIA5157 DAY → DFW Jul 13, 11:23 UTCJul 13, 13:18 UTC1h 55m
2026-07-12 JIA5435 - Jul 12, 23:30 UTCJul 13, 00:25 UTC55m
2026-07-12 JIA5265 - Jul 12, 21:20 UTCJul 12, 21:30 UTC10m
2026-07-12 JIA5265 - Jul 12, 20:35 UTCJul 12, 21:30 UTC55m
2026-07-12 JIA5265 LEX → CLT Jul 12, 20:34 UTCJul 12, 21:04 UTC30m
2026-07-12 JIA5265 - Jul 12, 19:01 UTCJul 12, 19:40 UTC40m
2026-07-12 JIA5650 - Jul 12, 16:01 UTCJul 12, 17:15 UTC1h 15m
2026-07-12 JIA5650 VRB → CLT Jul 12, 15:55 UTCJul 12, 17:16 UTC1h 21m
2026-07-12 JIA5650 - Jul 12, 13:40 UTCJul 12, 14:55 UTC1h 15m
2026-07-12 JIA5193 - Jul 12, 10:10 UTCJul 12, 11:30 UTC1h 20m
2026-07-12 JIA5193 PIA → CLT Jul 12, 10:06 UTCJul 12, 11:31 UTC1h 25m
2026-07-12 JIA5451 CLT → PIA Jul 12, 03:24 UTCJul 12, 05:00 UTC1h 36m
2026-07-12 JIA5150 - Jul 12, 00:05 UTCJul 12, 01:15 UTC1h 10m
2026-07-11 JIA5150 - Jul 11, 22:15 UTCJul 11, 23:15 UTC1h 0m
2026-07-11 JIA5444 - Jul 11, 19:25 UTCJul 11, 21:00 UTC1h 35m
2026-07-11 JIA5444 - Jul 11, 16:45 UTCJul 11, 18:35 UTC1h 50m
2026-07-11 JIA5322 - Jul 11, 12:35 UTCJul 11, 13:45 UTC1h 10m
2026-07-11 JIA5566 - Jul 11, 01:40 UTCJul 11, 02:40 UTC1h 0m
2026-07-10 JIA5357 - Jul 10, 22:15 UTCJul 10, 23:30 UTC1h 15m
2026-07-10 JIA5287 - Jul 10, 20:05 UTCJul 10, 21:20 UTC1h 15m
2026-07-10 JIA5058 - Jul 10, 16:10 UTCJul 10, 17:25 UTC1h 15m
2026-07-10 JIA5058 AVP → CLT Jul 10, 16:07 UTCJul 10, 17:25 UTC1h 18m
2026-07-10 JIA5058 - Jul 10, 14:00 UTCJul 10, 15:10 UTC1h 10m
2026-07-10 JIA5211 - Jul 10, 10:50 UTCJul 10, 11:45 UTC55m
2026-07-10 JIA5557 DCA → HSV Jul 10, 05:25 UTCJul 10, 06:50 UTC1h 25m
2026-07-10 JIA5557 DCA → HSV Jul 10, 05:22 UTCJul 10, 06:45 UTC1h 23m
2026-07-10 JIA5347 - Jul 10, 03:25 UTCJul 10, 04:05 UTC40m
2026-07-10 JIA5347 DCA → RDU Jul 10, 01:50 UTCJul 10, 02:35 UTC45m
2026-07-09 JIA5313 - Jul 9, 16:55 UTCJul 9, 19:00 UTC2h 5m
2026-07-09 JIA5313 - Jul 9, 13:45 UTCJul 9, 15:55 UTC2h 10m
2026-07-09 JIA5445 - Jul 9, 10:35 UTCJul 9, 11:30 UTC55m
2026-07-08 JIA5583 PHL → CVG Jul 8, 23:55 UTCJul 9, 01:15 UTC1h 20m
2026-07-08 JIA5583 PHL → CVG Jul 8, 23:51 UTCJul 9, 01:10 UTC1h 19m
2026-07-08 JIA5406 - Jul 8, 21:45 UTCJul 8, 22:15 UTC30m
2026-07-08 JIA5406 DCA → PHL Jul 8, 21:42 UTCJul 8, 22:12 UTC30m
2026-07-08 JIA5204 - Jul 8, 17:30 UTCJul 8, 18:35 UTC1h 5m
2026-07-08 JIA5204 - Jul 8, 15:00 UTCJul 8, 15:55 UTC55m
2026-07-08 JIA5441 - Jul 8, 11:45 UTCJul 8, 13:25 UTC1h 40m
2026-07-07 JIA5415 - Jul 7, 23:40 UTCJul 8, 01:50 UTC2h 10m
2026-07-07 JIA5415 PHL → MEM Jul 7, 23:43 UTCJul 8, 01:47 UTC2h 4m

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 N593NN page for operator, model, and routing details .

Mode-S A7A9C5 frequently asked

What is Mode-S code A7A9C5?
A7A9C5 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N593NN.
Where is Mode-S A7A9C5 registered?
Mode-S code A7A9C5 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 A7A9C5 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A7A9C5, octal 51724705, decimal 10,987,973.
What flights does A7A9C5 operate?
Mode-S A7A9C5 has broadcast 20 distinct callsigns, including JIA5104, JIA5444, JIA5406, JIA5640, JIA5475.