Apparatus

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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
Broadcasting now · callsign JIA5618 · 2,650 ft
Flights observed
602
Distinct callsigns
20
Country
US
Last broadcast
46m ago

Current position

A7B4EA is currently broadcasting. Map zoomed to live position.

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
JIA5420 PSA Airlines 7 2026-05-01
JIA5405 - 7 2026-06-18
JIA5298 - 7 2026-06-24
JIA5628 PSA Airlines 6 2026-06-05
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
JIA5117 PSA Airlines 6 2026-06-08
JIA5030 - 6 2026-07-12
JIA5647 PSA Airlines 5 2026-05-23
JIA5613 - 5 2026-07-02
JIA5431 PSA Airlines 5 2026-05-28
JIA5390 PSA Airlines 5 2026-05-11
JIA5275 PSA Airlines 5 2026-06-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 JIA5618 - Jul 14, 22:05 UTCJul 14, 22:30 UTC25m
2026-07-14 JIA5605 - Jul 14, 17:00 UTCJul 14, 18:20 UTC1h 20m
2026-07-14 JIA5583 PHL → CVG Jul 14, 00:05 UTCJul 14, 01:16 UTC1h 11m
2026-07-14 JIA5583 - Jul 14, 00:05 UTCJul 14, 01:20 UTC1h 15m
2026-07-13 JIA5129 - Jul 13, 22:05 UTCJul 13, 23:10 UTC1h 5m
2026-07-13 JIA5129 CLE → PHL Jul 13, 22:03 UTCJul 13, 23:04 UTC1h 1m
2026-07-13 JIA5129 - Jul 13, 20:05 UTCJul 13, 21:05 UTC1h 0m
2026-07-13 JIA5430 - Jul 13, 16:20 UTCJul 13, 16:30 UTC10m
2026-07-13 JIA5430 TVC → PHL Jul 13, 16:14 UTCJul 13, 17:45 UTC1h 31m
2026-07-13 JIA5433 - Jul 13, 13:40 UTCJul 13, 15:10 UTC1h 30m
2026-07-13 JIA5140 - Jul 13, 11:20 UTCJul 13, 12:15 UTC55m
2026-07-13 JIA5142 - Jul 13, 03:25 UTCJul 13, 04:15 UTC50m
2026-07-13 JIA5142 CLT → LEX Jul 13, 03:20 UTCJul 13, 04:13 UTC53m
2026-07-12 JIA5030 - Jul 12, 23:40 UTCJul 13, 01:05 UTC1h 25m
2026-07-12 JIA5030 - Jul 12, 20:50 UTCJul 12, 22:10 UTC1h 20m
2026-07-12 JIA5571 - Jul 12, 17:35 UTCJul 12, 19:05 UTC1h 30m
2026-07-12 JIA5480 - Jul 12, 15:01 UTCJul 12, 16:30 UTC1h 30m
2026-07-12 JIA5578 - Jul 12, 12:15 UTCJul 12, 13:35 UTC1h 20m
2026-07-12 JIA5583 PHL → CVG Jul 12, 03:53 UTCJul 12, 05:12 UTC1h 19m
2026-07-12 JIA5583 - Jul 12, 03:55 UTCJul 12, 05:15 UTC1h 20m
2026-07-12 JIA5248 - Jul 12, 01:05 UTCJul 12, 02:45 UTC1h 40m
2026-07-11 JIA5248 - Jul 11, 19:45 UTCJul 11, 21:30 UTC1h 45m
2026-07-11 JIA5248 PHL → PHL Jul 11, 19:15 UTCJul 11, 19:20 UTC5m
2026-07-11 JIA5248 PHL → PHL Jul 11, 18:55 UTCJul 11, 19:00 UTC5m
2026-07-11 JIA5575 - Jul 11, 16:15 UTCJul 11, 17:35 UTC1h 20m
2026-07-11 JIA5575 - Jul 11, 13:30 UTCJul 11, 14:55 UTC1h 25m
2026-07-11 JIA5438 - Jul 11, 09:55 UTCJul 11, 11:05 UTC1h 10m
2026-07-11 JIA5438 CVG → PHL Jul 11, 09:51 UTCJul 11, 11:04 UTC1h 13m
2026-07-08 JIA9952 - Jul 8, 13:05 UTCJul 8, 14:05 UTC1h 0m
2026-07-08 JIA5098 - Jul 8, 03:20 UTCJul 8, 04:30 UTC1h 10m
2026-07-08 JIA5098 - Jul 8, 00:50 UTCJul 8, 02:05 UTC1h 15m
2026-07-07 JIA5172 - Jul 7, 22:25 UTCJul 7, 23:35 UTC1h 10m
2026-07-07 JIA5172 DCA → DTW Jul 7, 19:45 UTCJul 7, 20:45 UTC1h 0m
2026-07-07 JIA5091 - Jul 7, 16:05 UTCJul 7, 17:40 UTC1h 35m
2026-07-07 JIA5091 - Jul 7, 13:30 UTCJul 7, 15:10 UTC1h 40m
2026-07-06 JIA5051 - Jul 6, 14:35 UTCJul 6, 15:30 UTC55m
2026-07-06 JIA5051 CMH → DCA Jul 6, 14:33 UTCJul 6, 15:28 UTC55m
2026-07-06 JIA5197 DCA → CMH Jul 6, 04:20 UTCJul 6, 05:10 UTC50m
2026-07-05 JIA5636 - Jul 5, 21:10 UTCJul 5, 21:40 UTC30m
2026-07-05 JIA5636 PHL → PHL Jul 5, 20:15 UTCJul 5, 20:20 UTC5m
2026-07-05 JIA5636 PHL → PHL Jul 5, 20:05 UTCJul 5, 20:10 UTC5m
2026-07-05 JIA5074 - Jul 5, 12:05 UTCJul 5, 14:25 UTC2h 20m
2026-07-05 JIA5545 - Jul 5, 03:15 UTCJul 5, 05:35 UTC2h 20m
2026-07-05 JIA5545 - Jul 5, 02:35 UTCJul 5, 02:50 UTC15m
2026-07-05 JIA5545 - Jul 5, 02:20 UTCJul 5, 02:25 UTC5m
2026-07-04 JIA5173 - Jul 4, 19:05 UTCJul 4, 20:55 UTC1h 50m
2026-07-04 JIA5173 ECP → PHL Jul 4, 19:00 UTCJul 4, 20:55 UTC1h 55m
2026-07-04 JIA5173 - Jul 4, 16:15 UTCJul 4, 18:15 UTC2h 0m
2026-07-04 JIA5468 - Jul 4, 13:05 UTCJul 4, 15:10 UTC2h 5m
2026-07-04 JIA5491 - Jul 4, 00:35 UTCJul 4, 02:15 UTC1h 40m

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?
Yes. Mode-S A7B4EA is currently airborne.
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, JIA5420.