Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A37EC4

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N324SH · BOEING 737 MAX 8 · operated by WILMINGTON TRUST CO TRUSTEE

Hex
A37EC4
Octal
50677304
Decimal
10,714,820
Country
US
Tail
N324SH
Type
B38M
No current signal · last broadcast Jul 26, 22:55 UTC
Flights observed
463
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:55 UTC

Last known position

Most recent position reported by Mode-S A37EC4.

Country allocation

The ICAO 24-bit address A37EC4 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
AAL932 American Airlines 6 2026-05-28
AAL3165 - 6 2026-06-14
AAL2744 - 5 2026-07-04
AAL2135 American Airlines 5 2026-07-22
AAL1823 - 5 2026-06-17
AAL1382 American Airlines 5 2026-07-26
AAL1359 American Airlines 5 2026-07-23
AAL1283 American Airlines 5 2026-06-12
AAL1135 - 5 2026-06-28
AAL916 American Airlines 4 2026-04-30
AAL813 - 4 2026-06-20
AAL620 American Airlines 4 2026-04-17
AAL448 American Airlines 4 2026-06-02
AAL3213 American Airlines 4 2026-04-14
AAL2703 - 4 2026-06-12
AAL2640 American Airlines 4 2026-06-09
AAL2547 American Airlines 4 2026-05-02
AAL2546 American Airlines 4 2026-05-02
AAL2405 American Airlines 4 2026-05-09
AAL1474 - 4 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL1647 MCO → ORD Jul 26, 20:50 UTCJul 26, 22:55 UTC2h 5m
2026-07-26 AAL1382 SNA → DFW Jul 26, 15:05 UTCJul 26, 17:45 UTC2h 40m
2026-07-25 AAL2668 JAC → DFW Jul 25, 21:40 UTCJul 26, 00:10 UTC2h 30m
2026-07-25 AAL2668 JAC → DFW Jul 25, 21:36 UTCJul 26, 00:07 UTC2h 31m
2026-07-25 AAL2644 PHX → SFO Jul 25, 16:30 UTCJul 25, 19:05 UTC2h 35m
2026-07-25 AAL2644 PHX → SFO Jul 25, 12:25 UTCJul 25, 14:55 UTC2h 30m
2026-07-25 AAL2698 DFW → ABQ Jul 25, 07:15 UTCJul 25, 09:55 UTC2h 40m
2026-07-25 AAL1765 DFW → PIT Jul 25, 04:20 UTCJul 25, 05:35 UTC1h 15m
2026-07-24 AAL2339 PHX → JFK Jul 24, 21:35 UTCJul 25, 02:05 UTC4h 30m
2026-07-24 AAL1185 BOS → PHL Jul 24, 16:40 UTCJul 24, 19:55 UTC3h 15m
2026-07-24 AAL816 CLT → MHT Jul 24, 11:50 UTCJul 24, 15:00 UTC3h 10m
2026-07-24 AAL816 CLT → MHT Jul 24, 11:48 UTCJul 24, 15:02 UTC3h 14m
2026-07-23 AAL1359 ORD → PHL Jul 23, 19:25 UTCJul 24, 01:30 UTC6h 5m
2026-07-23 AAL2579 DFW → EYW Jul 23, 17:25 UTCJul 23, 17:40 UTC15m
2026-07-23 AAL1130 BOG → MIA Jul 23, 11:55 UTCJul 23, 15:05 UTC3h 10m
2026-07-23 AAL1137 DFW → BOG Jul 23, 00:15 UTCJul 23, 05:30 UTC5h 15m
2026-07-22 AAL2135 PWM → PHL Jul 22, 20:20 UTCJul 22, 22:25 UTC2h 5m
2026-07-22 AAL2135 PWM → PHL Jul 22, 20:16 UTCJul 22, 22:15 UTC1h 59m
2026-07-22 AAL2135 PWM → PHL Jul 22, 16:55 UTCJul 22, 18:50 UTC1h 55m
2026-07-22 AAL1693 PHX → SJC Jul 22, 12:53 UTCJul 22, 15:20 UTC2h 27m
2026-07-22 AAL1693 PHX → SJC Jul 22, 00:20 UTCJul 22, 15:25 UTC15h 5m
2026-07-21 AAL2572 SJC → DFW Jul 21, 18:55 UTCJul 21, 22:05 UTC3h 10m
2026-07-21 AAL2572 - Jul 21, 14:35 UTCJul 21, 17:25 UTC2h 50m
2026-07-21 AAL2728 EWR → DFW Jul 21, 10:10 UTCJul 21, 13:05 UTC2h 55m
2026-07-21 AAL1967 PHX → EWR Jul 21, 02:30 UTCJul 21, 06:45 UTC4h 15m
2026-07-20 AAL502 - Jul 20, 22:05 UTCJul 21, 00:55 UTC2h 50m
2026-07-20 AAL502 MEX → PHX Jul 20, 22:01 UTCJul 21, 00:49 UTC2h 48m
2026-07-20 AAL501 PHX → MEX Jul 20, 20:05 UTCJul 20, 20:15 UTC10m
2026-07-20 AAL501 PHX → MEX Jul 20, 17:40 UTCJul 20, 18:30 UTC50m
2026-07-20 AAL653 BOS → CLT Jul 20, 11:55 UTCJul 20, 15:40 UTC3h 45m
2026-07-20 AAL1749 CLT → PIT Jul 20, 01:40 UTCJul 20, 02:35 UTC55m
2026-07-19 AAL3153 BZN → CLT Jul 19, 20:36 UTCJul 19, 23:56 UTC3h 20m
2026-07-19 AAL3153 - Jul 19, 16:15 UTCJul 19, 23:55 UTC7h 40m
2026-07-19 AAL3018 MCO → ORD Jul 19, 12:15 UTCJul 19, 14:40 UTC2h 25m
2026-07-19 AAL3018 MCO → ORD Jul 19, 12:11 UTCJul 19, 14:35 UTC2h 24m
2026-07-18 AAL2064 - Jul 18, 21:15 UTCJul 18, 23:40 UTC2h 25m
2026-07-18 AAL2064 ORD → MCO Jul 18, 21:12 UTCJul 18, 23:36 UTC2h 24m
2026-07-18 AAL2590 - Jul 18, 15:05 UTCJul 18, 18:50 UTC3h 45m
2026-07-17 AAL358 - Jul 17, 22:49 UTCJul 18, 03:05 UTC4h 16m
2026-07-17 AAL301 - Jul 17, 13:45 UTCJul 17, 20:10 UTC6h 25m
2026-07-17 AAL2505 - Jul 17, 10:10 UTCJul 17, 11:25 UTC1h 15m
2026-07-17 AAL2794 - Jul 17, 00:35 UTCJul 17, 01:49 UTC1h 15m
2026-07-17 AAL2794 CLT → EWR Jul 17, 00:34 UTCJul 17, 01:46 UTC1h 12m
2026-07-16 AAL1758 - Jul 16, 20:15 UTCJul 16, 23:05 UTC2h 50m
2026-07-16 AAL1758 DEN → CLT Jul 16, 20:14 UTCJul 16, 23:04 UTC2h 50m
2026-07-16 AAL1758 - Jul 16, 15:55 UTCJul 16, 18:34 UTC2h 40m
2026-07-16 AAL1575 - Jul 16, 11:45 UTCJul 16, 13:05 UTC1h 20m
2026-07-16 AAL1575 EWR → CLT Jul 16, 11:44 UTCJul 16, 13:04 UTC1h 20m
2026-07-16 AAL1071 - Jul 16, 03:10 UTCJul 16, 04:55 UTC1h 45m
2026-07-15 AAL828 - Jul 15, 19:15 UTCJul 15, 22:30 UTC3h 15m

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 N324SH page for operator, model, and routing details .

Mode-S A37EC4 frequently asked

What is Mode-S code A37EC4?
A37EC4 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N324SH.
Where is Mode-S A37EC4 registered?
Mode-S code A37EC4 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 A37EC4 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A37EC4, octal 50677304, decimal 10,714,820.
What flights does A37EC4 operate?
Mode-S A37EC4 has broadcast 20 distinct callsigns, including AAL932, AAL3165, AAL2744, AAL2135, AAL1823.