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sensors Mode-S transponder

A657AD

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N508AE · BOMBARDIER Regional Jet CRJ-700 · operated by AMERICAN AIRLINES INC

Hex
A657AD
Octal
51453655
Decimal
10,901,421
Country
US
Tail
N508AE
Type
CRJ7
No current signal · last broadcast Jul 26, 18:25 UTC
Flights observed
691
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 18:25 UTC

Last known position

Most recent position reported by Mode-S A657AD.

Country allocation

The ICAO 24-bit address A657AD 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
JIA5388 PSA Airlines 16 2026-07-19
JIA5334 - 10 2026-06-21
JIA5213 PSA Airlines 10 2026-06-09
JIA5237 PSA Airlines 9 2026-07-25
JIA5518 - 8 2026-07-10
JIA5077 - 8 2026-07-16
JIA5614 PSA Airlines 7 2026-04-19
JIA5440 PSA Airlines 7 2026-05-19
JIA5326 PSA Airlines 7 2026-07-24
JIA5203 PSA Airlines 7 2026-07-23
JIA5113 - 7 2026-07-05
JIA5052 - 7 2026-07-17
JIA5676 PSA Airlines 6 2026-07-21
JIA5631 PSA Airlines 6 2026-04-21
JIA5601 - 6 2026-07-21
JIA5577 - 6 2026-07-06
JIA5575 PSA Airlines 6 2026-05-27
JIA5547 PSA Airlines 6 2026-07-25
JIA5339 PSA Airlines 6 2026-07-20
JIA5319 PSA Airlines 6 2026-05-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JIA5286 RDU → DCA Jul 26, 16:50 UTCJul 26, 17:15 UTC25m
2026-07-26 JIA5286 RDU → DCA Jul 26, 16:46 UTCJul 26, 18:13 UTC1h 27m
2026-07-26 JIA5286 RDU → DCA Jul 26, 14:15 UTCJul 26, 15:55 UTC1h 40m
2026-07-26 JIA5159 MHT → DCA Jul 26, 11:50 UTCJul 26, 12:50 UTC1h 0m
2026-07-25 JIA5162 DTW → PHL Jul 25, 22:40 UTCJul 25, 23:40 UTC1h 0m
2026-07-25 JIA5237 AGS → DCA Jul 25, 20:20 UTCJul 25, 21:10 UTC50m
2026-07-25 JIA5237 AGS → DCA Jul 25, 18:20 UTCJul 25, 19:00 UTC40m
2026-07-25 JIA5659 CMH → PHL Jul 25, 15:55 UTCJul 25, 17:05 UTC1h 10m
2026-07-25 JIA5659 CMH → PHL Jul 25, 13:40 UTCJul 25, 14:50 UTC1h 10m
2026-07-25 JIA5552 DAY → CLT Jul 25, 10:15 UTCJul 25, 11:55 UTC1h 40m
2026-07-25 JIA5547 RSW → DCA Jul 25, 00:50 UTCJul 25, 02:25 UTC1h 35m
2026-07-24 JIA5224 CLT → CVG Jul 24, 21:05 UTCJul 24, 23:20 UTC2h 15m
2026-07-24 JIA5224 CLT → CVG Jul 24, 17:10 UTCJul 24, 19:40 UTC2h 30m
2026-07-24 JIA5336 CLT → IAD Jul 24, 15:25 UTCJul 24, 16:05 UTC40m
2026-07-24 JIA5326 DCA → MHT Jul 24, 13:45 UTCJul 24, 14:35 UTC50m
2026-07-24 JIA5478 DCA → MCI Jul 24, 04:30 UTCJul 24, 05:15 UTC45m
2026-07-24 JIA5478 DCA → MCI Jul 24, 02:30 UTCJul 24, 03:10 UTC40m
2026-07-23 JIA5202 PWM → DCA Jul 23, 18:55 UTCJul 23, 20:00 UTC1h 5m
2026-07-23 JIA5556 - Jul 23, 16:35 UTCJul 23, 17:55 UTC1h 20m
2026-07-23 JIA5417 LEX → CLT Jul 23, 12:35 UTCJul 23, 13:45 UTC1h 10m
2026-07-23 JIA5184 CLE → PHL Jul 23, 04:00 UTCJul 23, 05:00 UTC1h 0m
2026-07-23 JIA5203 DCA → TUL Jul 23, 02:05 UTCJul 23, 02:30 UTC25m
2026-07-23 JIA5203 DCA → TUL Jul 23, 00:05 UTCJul 23, 00:15 UTC10m
2026-07-22 JIA5180 - Jul 22, 18:10 UTCJul 22, 19:55 UTC1h 45m
2026-07-22 JIA5180 HPN → CLT Jul 22, 18:06 UTCJul 22, 19:53 UTC1h 47m
2026-07-22 JIA5180 - Jul 22, 15:45 UTCJul 22, 17:10 UTC1h 25m
2026-07-22 JIA5661 - Jul 22, 12:25 UTCJul 22, 13:15 UTC50m
2026-07-22 JIA5661 VPS → CLT Jul 22, 12:18 UTCJul 22, 13:22 UTC1h 4m
2026-07-22 JIA5190 MKE → PHL Jul 22, 01:40 UTCJul 22, 02:40 UTC1h 0m
2026-07-21 JIA5220 PHL → CLE Jul 21, 23:05 UTCJul 21, 23:55 UTC50m
2026-07-21 JIA5220 - Jul 21, 15:15 UTCJul 21, 16:15 UTC1h 0m
2026-07-21 JIA5676 PHL → JAX Jul 21, 12:55 UTCJul 21, 13:50 UTC55m
2026-07-21 JIA5601 - Jul 21, 02:30 UTCJul 21, 03:10 UTC40m
2026-07-20 JIA5339 CLT → SDF Jul 20, 23:55 UTCJul 21, 00:45 UTC50m
2026-07-20 JIA5339 CLT → SDF Jul 20, 21:55 UTCJul 20, 23:00 UTC1h 5m
2026-07-20 JIA5661 - Jul 20, 14:25 UTCJul 20, 15:30 UTC1h 5m
2026-07-20 JIA519P - Jul 20, 12:10 UTCJul 20, 13:10 UTC1h 0m
2026-07-19 JIA5203 - Jul 19, 22:30 UTCJul 19, 22:50 UTC20m
2026-07-19 JIA5203 GSP → CLT Jul 19, 22:25 UTCJul 19, 22:52 UTC27m
2026-07-19 JIA5203 - Jul 19, 21:05 UTCJul 19, 21:25 UTC20m
2026-07-19 JIA5388 ALB → PHL Jul 19, 17:50 UTCJul 19, 19:05 UTC1h 15m
2026-07-19 JIA5388 ALB → PHL Jul 19, 15:25 UTCJul 19, 16:45 UTC1h 20m
2026-07-19 JIA5417 CAK → CLT Jul 19, 12:42 UTCJul 19, 13:43 UTC1h 1m
2026-07-19 JIA5184 - Jul 19, 04:00 UTCJul 19, 05:00 UTC1h 0m
2026-07-19 JIA5272 - Jul 19, 01:40 UTCJul 19, 02:00 UTC20m
2026-07-19 JIA5272 GSP → CLT Jul 19, 01:35 UTCJul 19, 01:58 UTC23m
2026-07-18 JIA5208 - Jul 18, 23:50 UTCJul 19, 00:45 UTC55m
2026-07-18 JIA5278 PHL → BHM Jul 18, 17:10 UTCJul 18, 19:30 UTC2h 20m
2026-07-18 JIA5607 - Jul 18, 14:20 UTCJul 18, 16:15 UTC1h 55m
2026-07-18 JIA5244 - Jul 18, 10:55 UTCJul 18, 11:55 UTC1h 0m

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 N508AE page for operator, model, and routing details .

Mode-S A657AD frequently asked

What is Mode-S code A657AD?
A657AD is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N508AE.
Where is Mode-S A657AD registered?
Mode-S code A657AD 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 A657AD broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 18:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A657AD, octal 51453655, decimal 10,901,421.
What flights does A657AD operate?
Mode-S A657AD has broadcast 20 distinct callsigns, including JIA5388, JIA5334, JIA5213, JIA5237, JIA5518.