Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AA5237

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N764US · AIRBUS A-319 · operated by UMB BANK NA TRUSTEE

Hex
AA5237
Octal
52451067
Decimal
11,162,167
Country
US
Tail
N764US
Type
A319
No current signal · last broadcast Jul 26, 21:45 UTC
Flights observed
629
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:45 UTC

Last known position

Most recent position reported by Mode-S AA5237.

Country allocation

The ICAO 24-bit address AA5237 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
AAL3299 - 11 2026-07-13
AAL2934 - 10 2026-06-28
AAL2714 - 10 2026-07-03
AAL2807 - 8 2026-07-05
AAL2625 American Airlines 8 2026-06-24
AAL2445 American Airlines 7 2026-06-13
AAL1977 - 7 2026-07-22
AAL3130 American Airlines 6 2026-05-28
AAL2632 American Airlines 6 2026-05-05
AAL2354 - 6 2026-07-05
AAL1770 - 6 2026-07-21
AAL3243 American Airlines 5 2026-06-08
AAL3221 - 5 2026-07-04
AAL2198 American Airlines 5 2026-06-02
AAL2134 - 5 2026-07-14
AAL1934 - 5 2026-06-14
AAL1605 American Airlines 5 2026-05-24
AAL1440 - 5 2026-07-19
AAL1417 - 5 2026-07-10
AAL928 - 4 2026-06-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL2831 LAX → PHL Jul 26, 21:35 UTCJul 26, 21:45 UTC10m
2026-07-26 AAL2831 LAX → PHL Jul 26, 19:45 UTCJul 26, 20:30 UTC45m
2026-07-26 AAL1325 BDA → MIA Jul 26, 15:25 UTCJul 26, 17:25 UTC2h 0m
2026-07-26 AAL1325 BDA → MIA Jul 26, 15:25 UTCJul 26, 17:26 UTC2h 1m
2026-07-26 AAL647P MIA → SDF Jul 26, 12:05 UTCJul 26, 14:20 UTC2h 15m
2026-07-26 AAL647P MIA → SDF Jul 26, 12:05 UTCJul 26, 14:20 UTC2h 15m
2026-07-26 AAL3215 ASE → AUS Jul 26, 10:05 UTCJul 26, 10:50 UTC45m
2026-07-26 AAL3188 CLT → ORD Jul 26, 03:20 UTCJul 26, 03:55 UTC35m
2026-07-26 AAL801 PHL → RSW Jul 26, 00:10 UTCJul 26, 01:55 UTC1h 45m
2026-07-25 AAL880 MCO → LAX Jul 25, 21:05 UTCJul 25, 23:00 UTC1h 55m
2026-07-25 AAL880 MCO → LAX Jul 25, 21:01 UTCJul 25, 22:54 UTC1h 53m
2026-07-25 AAL1457 MIA → LGA Jul 25, 19:10 UTCJul 25, 19:45 UTC35m
2026-07-25 AAL1457 MIA → LGA Jul 25, 17:51 UTCJul 25, 19:44 UTC1h 53m
2026-07-25 AAL1153 PHL → BOS Jul 25, 15:15 UTCJul 25, 15:45 UTC30m
2026-07-25 AAL1153 PHL → BOS Jul 25, 15:13 UTCJul 25, 16:54 UTC1h 41m
2026-07-25 AAL2859 AUS → PHL Jul 25, 10:35 UTCJul 25, 13:10 UTC2h 35m
2026-07-25 AAL2223 PHL → MCO Jul 25, 00:10 UTCJul 25, 02:50 UTC2h 40m
2026-07-24 AAL1589 DFW → AUS Jul 24, 18:00 UTCJul 24, 20:50 UTC2h 50m
2026-07-24 AAL1589 DFW → AUS Jul 24, 17:57 UTCJul 24, 20:50 UTC2h 53m
2026-07-24 AAL1589 DFW → AUS Jul 24, 13:35 UTCJul 24, 16:35 UTC3h 0m
2026-07-24 AAL1325 BDA → MIA Jul 24, 10:10 UTCJul 24, 12:05 UTC1h 55m
2026-07-24 AAL647 DTW → CLT Jul 24, 02:05 UTCJul 24, 04:10 UTC2h 5m
2026-07-24 AAL647 DTW → CLT Jul 24, 02:04 UTCJul 24, 04:08 UTC2h 4m
2026-07-23 AAL1219 IAH → ORD Jul 23, 22:55 UTCJul 23, 23:25 UTC30m
2026-07-23 AAL1219 IAH → ORD Jul 23, 21:00 UTCJul 23, 21:20 UTC20m
2026-07-23 AAL1457 MIA → LGA Jul 23, 14:35 UTCJul 23, 19:10 UTC4h 35m
2026-07-23 AAL1733 DFW → MKE Jul 23, 11:45 UTCJul 23, 12:25 UTC40m
2026-07-23 AAL1813 MSY → PHL Jul 23, 04:10 UTCJul 23, 04:50 UTC40m
2026-07-23 AAL1813 MSY → PHL Jul 23, 04:07 UTCJul 23, 04:47 UTC40m
2026-07-23 AAL1069 DFW → SFO Jul 23, 00:40 UTCJul 23, 02:55 UTC2h 15m
2026-07-22 AAL1985 - Jul 22, 23:15 UTCJul 22, 23:50 UTC35m
2026-07-22 AAL1985 - Jul 22, 21:15 UTCJul 22, 21:30 UTC15m
2026-07-22 AAL2631 NAS → DCA Jul 22, 19:10 UTCJul 22, 21:30 UTC2h 20m
2026-07-22 AAL2631 NAS → DCA Jul 22, 18:53 UTCJul 22, 21:00 UTC2h 7m
2026-07-22 AAL2631 NAS → DCA Jul 22, 15:10 UTCJul 22, 17:15 UTC2h 5m
2026-07-22 AAL1977 - Jul 22, 12:10 UTCJul 22, 13:00 UTC50m
2026-07-22 AAL1977 CLT → DCA Jul 22, 12:07 UTCJul 22, 13:00 UTC53m
2026-07-22 AAL1017 CLT → ILM Jul 22, 03:20 UTCJul 22, 03:45 UTC25m
2026-07-22 AAL1017 CLT → ILM Jul 22, 03:16 UTCJul 22, 03:50 UTC34m
2026-07-22 AAL2212 SNA → ORD Jul 22, 01:25 UTCJul 22, 01:55 UTC30m
2026-07-21 AAL2212 SNA → ORD Jul 21, 23:50 UTCJul 22, 00:15 UTC25m
2026-07-21 AAL1770 - Jul 21, 20:25 UTCJul 21, 22:15 UTC1h 50m
2026-07-21 AAL1770 DTW → CLT Jul 21, 20:24 UTCJul 21, 22:14 UTC1h 50m
2026-07-21 AAL1770 - Jul 21, 17:55 UTCJul 21, 19:20 UTC1h 25m
2026-07-21 AAL2395 LGA → RDU Jul 21, 15:40 UTCJul 21, 16:34 UTC54m
2026-07-21 AAL2395 LGA → RDU Jul 21, 13:40 UTCJul 21, 14:50 UTC1h 10m
2026-07-21 AAL2533 - Jul 21, 03:10 UTCJul 21, 04:55 UTC1h 45m
2026-07-21 AAL2533 EYW → CLT Jul 21, 03:02 UTCJul 21, 04:54 UTC1h 52m
2026-07-21 AAL2533 - Jul 21, 00:35 UTCJul 21, 02:15 UTC1h 40m
2026-07-20 AAL1876 DFW → DCA Jul 20, 20:05 UTCJul 20, 21:35 UTC1h 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 N764US page for operator, model, and routing details .

Mode-S AA5237 frequently asked

What is Mode-S code AA5237?
AA5237 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N764US.
Where is Mode-S AA5237 registered?
Mode-S code AA5237 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 AA5237 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA5237, octal 52451067, decimal 11,162,167.
What flights does AA5237 operate?
Mode-S AA5237 has broadcast 20 distinct callsigns, including AAL3299, AAL2934, AAL2714, AAL2807, AAL2625.