Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A37EA4

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N324RA · BOEING 737 MAX 8 · operated by AMERICAN AIRLINES INC

Hex
A37EA4
Octal
50677244
Decimal
10,714,788
Country
US
Tail
N324RA
Type
B38M
No current signal · last broadcast Jul 26, 23:00 UTC
Flights observed
303
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 23:00 UTC

Last known position

Most recent position reported by Mode-S A37EA4.

Country allocation

The ICAO 24-bit address A37EA4 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
AAL2897 American Airlines 6 2026-05-11
AAL2478 - 6 2026-07-15
AAL2152 American Airlines 6 2026-07-24
AAL828 - 5 2026-07-12
AAL1514 American Airlines 5 2026-05-21
AAL829 American Airlines 4 2026-07-12
AAL3095 - 4 2026-07-04
AAL2986 American Airlines 4 2026-04-21
AAL916 American Airlines 3 2026-04-16
AAL3152 American Airlines 3 2026-04-19
AAL2996 - 3 2026-07-17
AAL2798 - 3 2026-07-18
AAL2788 - 3 2026-07-09
AAL2644 - 3 2026-07-05
AAL2348 American Airlines 3 2026-04-14
AAL2211 American Airlines 3 2026-05-12
AAL2200 American Airlines 3 2026-05-16
AAL2140 American Airlines 3 2026-04-30
AAL2017 American Airlines 3 2026-05-03
AAL1989 - 3 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL324 IAH → MIA Jul 26, 21:50 UTCJul 26, 23:00 UTC1h 10m
2026-07-26 AAL324 IAH → MIA Jul 26, 17:25 UTCJul 26, 20:05 UTC2h 40m
2026-07-26 AAL1361 RNO → DFW Jul 26, 12:35 UTCJul 26, 15:20 UTC2h 45m
2026-07-26 AAL1273 PHX → BOS Jul 26, 04:20 UTCJul 26, 07:10 UTC2h 51m
2026-07-26 AAL1728 DTW → PHX Jul 26, 00:55 UTCJul 26, 02:45 UTC1h 50m
2026-07-26 AAL1728 DTW → PHX Jul 26, 00:53 UTCJul 26, 02:39 UTC1h 46m
2026-07-25 AAL1728 DTW → PHX Jul 25, 22:10 UTCJul 26, 00:00 UTC1h 50m
2026-07-24 AAL2282 SAT → ORD Jul 24, 23:15 UTCJul 25, 01:40 UTC2h 25m
2026-07-24 AAL2282 SAT → ORD Jul 24, 19:30 UTCJul 24, 22:00 UTC2h 30m
2026-07-24 AAL2152 DCA → BOS Jul 24, 15:50 UTCJul 24, 17:50 UTC2h 0m
2026-07-24 AAL2152 DCA → BOS Jul 24, 12:30 UTCJul 24, 14:40 UTC2h 10m
2026-07-23 AAL688R SNA → DFW Jul 23, 23:45 UTCJul 24, 02:30 UTC2h 45m
2026-07-23 AAL2688 RDU → CLT Jul 23, 19:55 UTCJul 23, 22:25 UTC2h 30m
2026-07-23 AAL2372 - Jul 23, 15:55 UTCJul 23, 18:35 UTC2h 40m
2026-07-23 AAL806 LGA → CLT Jul 23, 00:40 UTCJul 23, 03:15 UTC2h 35m
2026-07-23 AAL806 LGA → CLT Jul 23, 00:37 UTCJul 23, 03:12 UTC2h 35m
2026-07-22 AAL1772 LGA → STL Jul 22, 20:00 UTCJul 22, 23:05 UTC3h 5m
2026-07-22 AAL1772 LGA → STL Jul 22, 15:50 UTCJul 22, 18:40 UTC2h 50m
2026-07-22 AAL1091 CLT → PHL Jul 22, 12:20 UTCJul 22, 13:30 UTC1h 10m
2026-07-22 AAL1091 CLT → PHL Jul 22, 12:09 UTCJul 22, 13:25 UTC1h 16m
2026-07-22 AAL1607 PHX → PHL Jul 22, 04:45 UTCJul 22, 05:25 UTC40m
2026-07-22 AAL1786 - Jul 22, 00:55 UTCJul 22, 03:05 UTC2h 10m
2026-07-21 AAL1786 DFW → DTW Jul 21, 20:55 UTCJul 21, 23:05 UTC2h 10m
2026-07-21 AAL2341 DFW → DFW Jul 21, 13:40 UTCJul 21, 19:05 UTC5h 25m
2026-07-20 AAL994 - Jul 20, 09:50 UTCJul 20, 11:30 UTC1h 40m
2026-07-20 AAL1081 IAH → DFW Jul 20, 04:30 UTCJul 20, 06:15 UTC1h 45m
2026-07-20 AAL1868 PIT → DFW Jul 20, 00:25 UTCJul 20, 03:05 UTC2h 40m
2026-07-19 AAL1868 PIT → DFW Jul 19, 20:20 UTCJul 19, 23:10 UTC2h 50m
2026-07-19 AAL1601 CUN → DFW Jul 19, 16:10 UTCJul 19, 18:30 UTC2h 20m
2026-07-19 AAL1601 CUN → DFW Jul 19, 16:09 UTCJul 19, 18:28 UTC2h 19m
2026-07-19 AAL1343 DFW → CUN Jul 19, 12:40 UTCJul 19, 14:55 UTC2h 15m
2026-07-19 AAL1122 - Jul 19, 05:35 UTCJul 19, 06:20 UTC45m
2026-07-19 AAL1122 BOG → DFW Jul 19, 05:35 UTCJul 19, 10:44 UTC5h 9m
2026-07-18 AAL915 - Jul 18, 22:45 UTCJul 19, 01:55 UTC3h 10m
2026-07-18 AAL915 MIA → BOG Jul 18, 22:44 UTCJul 19, 01:49 UTC3h 5m
2026-07-18 AAL3213 - Jul 18, 18:05 UTCJul 18, 20:30 UTC2h 25m
2026-07-18 AAL2798 - Jul 18, 13:10 UTCJul 18, 16:15 UTC3h 5m
2026-07-18 AAL2798 PHL → SXM Jul 18, 13:08 UTCJul 18, 16:35 UTC3h 27m
2026-07-18 AAL2798 PHL → PHL Jul 18, 12:40 UTCJul 18, 12:45 UTC5m
2026-07-17 AAL3160 LAS → PHL Jul 17, 19:23 UTCJul 18, 00:01 UTC4h 38m
2026-07-17 AAL3160 LAS → PHL Jul 17, 19:25 UTCJul 18, 00:04 UTC4h 40m
2026-07-17 AAL3038 JFK → LAS Jul 17, 12:19 UTCJul 17, 16:55 UTC4h 35m
2026-07-17 AAL2996 - Jul 17, 05:45 UTCJul 17, 10:05 UTC4h 20m
2026-07-17 AAL2996 MEX → JFK Jul 17, 05:43 UTCJul 17, 10:05 UTC4h 22m
2026-07-17 AAL1798 - Jul 17, 01:25 UTCJul 17, 04:10 UTC2h 45m
2026-07-16 AAL1400 - Jul 16, 23:15 UTCJul 16, 23:35 UTC20m
2026-07-16 AAL1400 KIN → MIA Jul 16, 22:11 UTCJul 16, 23:35 UTC1h 24m
2026-07-16 AAL1400 - Jul 16, 19:35 UTCJul 16, 20:00 UTC25m
2026-07-16 AAL969 - Jul 16, 15:19 UTCJul 16, 16:49 UTC1h 30m
2026-07-16 AAL969 CLT → MIA Jul 16, 15:15 UTCJul 16, 16:50 UTC1h 35m

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 N324RA page for operator, model, and routing details .

Mode-S A37EA4 frequently asked

What is Mode-S code A37EA4?
A37EA4 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N324RA.
Where is Mode-S A37EA4 registered?
Mode-S code A37EA4 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 A37EA4 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 23:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A37EA4, octal 50677244, decimal 10,714,788.
What flights does A37EA4 operate?
Mode-S A37EA4 has broadcast 20 distinct callsigns, including AAL2897, AAL2478, AAL2152, AAL828, AAL1514.