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sensors Mode-S transponder

A7B4EA

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N596NN · BOMBARDIER Regional Jet CRJ-900 · operated by AMERICAN AIRLINES INC

Hex
A7B4EA
Octal
51732352
Decimal
10,990,826
Country
US
Tail
N596NN
Type
CRJ9
No current signal · last broadcast Jul 26, 22:30 UTC
Flights observed
692
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:30 UTC

Last known position

Most recent position reported by Mode-S A7B4EA.

Country allocation

The ICAO 24-bit address A7B4EA 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
JIA5290 - 10 2026-07-03
JIA5596 - 8 2026-06-30
JIA5585 - 8 2026-06-26
JIA5116 PSA Airlines 8 2026-05-18
JIA5520 PSA Airlines 7 2026-07-25
JIA5420 PSA Airlines 7 2026-05-01
JIA5405 - 7 2026-06-18
JIA5298 - 7 2026-06-24
JIA5221 - 7 2026-07-17
JIA5628 PSA Airlines 6 2026-06-05
JIA5583 - 6 2026-07-17
JIA5575 - 6 2026-07-11
JIA5545 - 6 2026-07-05
JIA5397 PSA Airlines 6 2026-05-29
JIA5349 - 6 2026-07-01
JIA5324 PSA Airlines 6 2026-05-15
JIA5269 PSA Airlines 6 2026-07-23
JIA5117 PSA Airlines 6 2026-06-08
JIA5030 - 6 2026-07-12
JIA5647 PSA Airlines 5 2026-05-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JIA5423 ORF → CLT Jul 26, 21:20 UTCJul 26, 22:30 UTC1h 10m
2026-07-26 JIA5423 ORF → CLT Jul 26, 17:50 UTCJul 26, 20:05 UTC2h 15m
2026-07-26 JIA5052 ABE → CLT Jul 26, 15:30 UTCJul 26, 16:40 UTC1h 10m
2026-07-26 JIA5052 ABE → CLT Jul 26, 15:29 UTCJul 26, 16:38 UTC1h 9m
2026-07-26 JIA5052 ABE → CLT Jul 26, 13:15 UTCJul 26, 14:10 UTC55m
2026-07-26 JIA5259 PHL → BNA Jul 26, 10:00 UTCJul 26, 11:15 UTC1h 15m
2026-07-26 JIA5233 MHT → DCA Jul 26, 01:10 UTCJul 26, 02:15 UTC1h 5m
2026-07-26 JIA5317 PIT → DCA Jul 26, 00:10 UTCJul 26, 00:15 UTC5m
2026-07-25 JIA5317 PIT → DCA Jul 25, 23:10 UTCJul 26, 00:05 UTC55m
2026-07-25 JIA5317 PIT → DCA Jul 25, 23:03 UTCJul 25, 23:48 UTC45m
2026-07-25 JIA5317 PIT → DCA Jul 25, 21:15 UTCJul 25, 22:05 UTC50m
2026-07-25 JIA5204 ALB → DCA Jul 25, 18:50 UTCJul 25, 20:00 UTC1h 10m
2026-07-25 JIA5204 ALB → DCA Jul 25, 16:50 UTCJul 25, 17:55 UTC1h 5m
2026-07-25 JIA5380 CLE → PHL Jul 25, 14:20 UTCJul 25, 15:40 UTC1h 20m
2026-07-25 JIA5380 CLE → PHL Jul 25, 14:19 UTCJul 25, 15:40 UTC1h 21m
2026-07-25 JIA5380 CLE → PHL Jul 25, 12:15 UTCJul 25, 13:30 UTC1h 15m
2026-07-25 JIA5520 PIT → PHL Jul 25, 10:10 UTCJul 25, 10:50 UTC40m
2026-07-25 JIA5622 CLT → ORF Jul 25, 01:30 UTCJul 25, 02:15 UTC45m
2026-07-24 JIA5357 DCA → BDL Jul 24, 22:35 UTCJul 24, 23:50 UTC1h 15m
2026-07-24 JIA5357 DCA → BDL Jul 24, 22:31 UTCJul 24, 23:50 UTC1h 19m
2026-07-24 JIA5287 PHL → JAX Jul 24, 20:05 UTCJul 24, 21:20 UTC1h 15m
2026-07-24 JIA5287 PHL → JAX Jul 24, 20:00 UTCJul 24, 21:17 UTC1h 17m
2026-07-24 JIA5058 DFW → BHM Jul 24, 16:50 UTCJul 24, 18:10 UTC1h 20m
2026-07-24 JIA5058 DFW → BHM Jul 24, 16:45 UTCJul 24, 18:06 UTC1h 21m
2026-07-24 JIA5058 DFW → BHM Jul 24, 14:20 UTCJul 24, 15:45 UTC1h 25m
2026-07-23 JIA5020 MHT → PHL Jul 23, 16:25 UTCJul 23, 18:00 UTC1h 35m
2026-07-23 JIA5020 MHT → PHL Jul 23, 13:35 UTCJul 23, 15:25 UTC1h 50m
2026-07-23 JIA5386 MLB → CLT Jul 23, 10:10 UTCJul 23, 11:35 UTC1h 25m
2026-07-23 JIA5364 CLT → MLB Jul 23, 03:00 UTCJul 23, 04:05 UTC1h 5m
2026-07-23 JIA5269 DCA → BGR Jul 23, 00:00 UTCJul 23, 01:10 UTC1h 10m
2026-07-22 JIA5269 DCA → BGR Jul 22, 23:54 UTCJul 23, 01:11 UTC1h 17m
2026-07-22 JIA5269 DCA → BGR Jul 22, 21:40 UTCJul 22, 22:50 UTC1h 10m
2026-07-22 JIA5118 - Jul 22, 19:20 UTCJul 22, 20:00 UTC40m
2026-07-22 JIA5118 - Jul 22, 17:50 UTCJul 22, 18:20 UTC30m
2026-07-22 JIA5262 SHV → CLT Jul 22, 15:10 UTCJul 22, 16:05 UTC55m
2026-07-22 JIA5262 SHV → CLT Jul 22, 12:15 UTCJul 22, 13:05 UTC50m
2026-07-22 JIA5382 DCA → BGR Jul 22, 02:15 UTCJul 22, 02:50 UTC35m
2026-07-22 JIA5382 DCA → BGR Jul 22, 02:12 UTCJul 22, 02:49 UTC37m
2026-07-21 JIA5350 - Jul 21, 22:30 UTCJul 22, 00:35 UTC2h 5m
2026-07-21 JIA5350 - Jul 21, 15:50 UTCJul 21, 17:45 UTC1h 55m
2026-07-21 JIA5322 DCA → PHL Jul 21, 12:45 UTCJul 21, 14:00 UTC1h 15m
2026-07-21 JIA5566 - Jul 21, 01:30 UTCJul 21, 02:30 UTC1h 0m
2026-07-21 JIA5566 CLT → JAN Jul 21, 01:24 UTCJul 21, 02:39 UTC1h 15m
2026-07-20 JIA5604 CLT → PIA Jul 20, 22:50 UTCJul 21, 00:05 UTC1h 15m
2026-07-20 JIA5604 CLT → PIA Jul 20, 20:20 UTCJul 20, 21:55 UTC1h 35m
2026-07-20 JIA5446 DCA → DTW Jul 20, 16:40 UTCJul 20, 18:20 UTC1h 40m
2026-07-20 JIA5446 DCA → DTW Jul 20, 16:38 UTCJul 20, 18:16 UTC1h 38m
2026-07-20 JIA5446 DCA → DTW Jul 20, 14:10 UTCJul 20, 15:55 UTC1h 45m
2026-07-20 JIA5211 PHL → MKE Jul 20, 10:50 UTCJul 20, 11:50 UTC1h 0m
2026-07-20 JIA5557 DCA → HSV Jul 20, 00:10 UTCJul 20, 01:40 UTC1h 30m

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 N596NN page for operator, model, and routing details .

Mode-S A7B4EA frequently asked

What is Mode-S code A7B4EA?
A7B4EA is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N596NN.
Where is Mode-S A7B4EA registered?
Mode-S code A7B4EA 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 A7B4EA broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A7B4EA, octal 51732352, decimal 10,990,826.
What flights does A7B4EA operate?
Mode-S A7B4EA has broadcast 20 distinct callsigns, including JIA5290, JIA5596, JIA5585, JIA5116, JIA5520.