Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A37389

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N321RL · BOEING 737 MAX 8 · operated by WILMINGTON TRUST CO TRUSTEE

Hex
A37389
Octal
50671611
Decimal
10,711,945
Country
US
Tail
N321RL
Type
B38M
No current signal · last broadcast Jul 26, 22:15 UTC
Flights observed
442
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:15 UTC

Last known position

Most recent position reported by Mode-S A37389.

Country allocation

The ICAO 24-bit address A37389 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
AAL1609 American Airlines 7 2026-07-21
AAL264 American Airlines 6 2026-05-04
AAL1289 - 6 2026-07-15
AAL654 American Airlines 5 2026-06-13
AAL363 - 5 2026-07-18
AAL1956 - 5 2026-07-06
AAL920 American Airlines 4 2026-07-17
AAL628 - 4 2026-07-16
AAL3237 American Airlines 4 2026-04-21
AAL3210 American Airlines 4 2026-05-30
AAL2887 - 4 2026-07-18
AAL2808 American Airlines 4 2026-05-04
AAL2726 - 4 2026-07-02
AAL2678 - 4 2026-07-11
AAL2547 American Airlines 4 2026-07-20
AAL2546 - 4 2026-07-20
AAL2162 - 4 2026-07-11
AAL1137 - 4 2026-06-24
AAL99 - 3 2026-06-23
AAL985 American Airlines 3 2026-04-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL2679 SRQ → DFW Jul 26, 18:55 UTCJul 26, 22:15 UTC3h 20m
2026-07-26 AAL2679 SRQ → DFW Jul 26, 13:45 UTCJul 26, 17:20 UTC3h 35m
2026-07-25 AAL3018 DCA → MIA Jul 25, 11:40 UTCJul 25, 14:05 UTC2h 25m
2026-07-24 AAL2064 BHM → PHL Jul 24, 20:25 UTCJul 24, 22:35 UTC2h 10m
2026-07-24 AAL2064 BHM → PHL Jul 24, 20:24 UTCJul 24, 22:36 UTC2h 12m
2026-07-24 AAL2590 SNA → ORD Jul 24, 14:55 UTCJul 24, 18:35 UTC3h 40m
2026-07-24 AAL2590 SNA → ORD Jul 24, 14:54 UTCJul 24, 18:20 UTC3h 26m
2026-07-23 AAL519 BGI → CLT Jul 23, 23:05 UTCJul 24, 02:45 UTC3h 40m
2026-07-23 AAL2269 ORD → BOS Jul 23, 18:45 UTCJul 23, 21:25 UTC2h 40m
2026-07-23 AAL2269 ORD → BOS Jul 23, 15:05 UTCJul 23, 17:25 UTC2h 20m
2026-07-23 AAL1305 DFW → PLS Jul 23, 07:08 UTCJul 23, 10:30 UTC3h 22m
2026-07-23 AAL1305 DFW → PLS Jul 23, 07:10 UTCJul 23, 10:15 UTC3h 5m
2026-07-23 AAL1305 DFW → PLS Jul 23, 01:30 UTCJul 23, 05:30 UTC4h 0m
2026-07-22 AAL3177 DTW → DFW Jul 22, 20:24 UTCJul 22, 22:41 UTC2h 17m
2026-07-22 AAL1645 BOS → CLT Jul 22, 16:20 UTCJul 22, 22:45 UTC6h 25m
2026-07-22 AAL392 PHL → PVD Jul 22, 12:00 UTCJul 22, 14:10 UTC2h 10m
2026-07-21 AAL1609 PHX → DCA Jul 21, 14:10 UTCJul 21, 17:35 UTC3h 25m
2026-07-21 AAL971 LAX → DFW Jul 21, 08:50 UTCJul 21, 11:30 UTC2h 40m
2026-07-20 AAL2547 MEX → LAX Jul 20, 23:15 UTCJul 21, 02:35 UTC3h 19m
2026-07-20 AAL2546 - Jul 20, 16:25 UTCJul 20, 17:45 UTC1h 20m
2026-07-20 AAL2546 LAX → MEX Jul 20, 16:21 UTCJul 20, 19:41 UTC3h 20m
2026-07-20 AAL1291 AUS → LAX Jul 20, 01:55 UTCJul 20, 04:35 UTC2h 40m
2026-07-19 AAL2892 PHX → AUS Jul 19, 22:40 UTCJul 20, 00:40 UTC2h 0m
2026-07-19 AAL2548 - Jul 19, 19:40 UTCJul 19, 21:20 UTC1h 40m
2026-07-19 AAL1586 - Jul 19, 14:00 UTCJul 19, 17:50 UTC3h 50m
2026-07-19 AAL1586 ORD → SFO Jul 19, 13:57 UTCJul 19, 17:47 UTC3h 50m
2026-07-19 AAL2949 LAS → ORD Jul 19, 08:25 UTCJul 19, 11:40 UTC3h 15m
2026-07-19 AAL2025 DCA → LGA Jul 19, 01:10 UTCJul 19, 05:35 UTC4h 25m
2026-07-18 AAL1283 - Jul 18, 19:40 UTCJul 18, 22:55 UTC3h 15m
2026-07-18 AAL1283 POS → MIA Jul 18, 19:30 UTCJul 18, 22:54 UTC3h 24m
2026-07-18 AAL2703 - Jul 18, 14:30 UTCJul 18, 17:35 UTC3h 5m
2026-07-18 AAL2887 - Jul 18, 10:20 UTCJul 18, 12:45 UTC2h 25m
2026-07-18 AAL363 - Jul 18, 01:45 UTCJul 18, 04:10 UTC2h 26m
2026-07-18 AAL363 MIA → CLE Jul 18, 01:44 UTCJul 18, 04:07 UTC2h 23m
2026-07-17 AAL920 CLO → MIA Jul 17, 22:29 UTCJul 17, 22:49 UTC20m
2026-07-17 AAL920 CLO → MIA Jul 17, 19:49 UTCJul 17, 20:10 UTC20m
2026-07-17 AAL920 CLO → MIA Jul 17, 19:35 UTCJul 17, 22:47 UTC3h 12m
2026-07-17 AAL919 - Jul 17, 14:44 UTCJul 17, 17:44 UTC3h 0m
2026-07-17 AAL1342 BNA → MIA Jul 17, 10:44 UTCJul 17, 12:45 UTC2h 0m
2026-07-17 AAL2750 MCO → PHX Jul 17, 03:45 UTCJul 17, 05:10 UTC1h 25m
2026-07-17 AAL2750 MCO → PHX Jul 17, 03:42 UTCJul 17, 05:07 UTC1h 25m
2026-07-17 AAL922 - Jul 17, 00:25 UTCJul 17, 01:45 UTC1h 20m
2026-07-16 AAL922 - Jul 16, 21:30 UTCJul 16, 22:35 UTC1h 5m
2026-07-16 AAL554 PHX → DFW Jul 16, 17:16 UTCJul 16, 19:11 UTC1h 55m
2026-07-16 AAL554 - Jul 16, 17:20 UTCJul 16, 19:20 UTC2h 0m
2026-07-16 AAL628 - Jul 16, 14:05 UTCJul 16, 15:00 UTC55m
2026-07-15 AAL519 - Jul 15, 23:15 UTCJul 16, 02:50 UTC3h 35m
2026-07-15 AAL3321 JFK → ORD Jul 15, 18:20 UTCJul 15, 20:25 UTC2h 5m
2026-07-15 AAL1289 JFK → JFK Jul 15, 11:30 UTCJul 15, 16:35 UTC5h 5m
2026-07-14 AAL1044 - Jul 14, 18:05 UTCJul 14, 22:35 UTC4h 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 N321RL page for operator, model, and routing details .

Mode-S A37389 frequently asked

What is Mode-S code A37389?
A37389 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N321RL.
Where is Mode-S A37389 registered?
Mode-S code A37389 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 A37389 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A37389, octal 50671611, decimal 10,711,945.
What flights does A37389 operate?
Mode-S A37389 has broadcast 20 distinct callsigns, including AAL1609, AAL264, AAL1289, AAL654, AAL363.