Apparatus

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sensors Mode-S transponder

AD526B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N958AM · BOEING 737-800 · operated by UMB BANK NA TRUSTEE

Hex
AD526B
Octal
53251153
Decimal
11,358,827
Country
US
Tail
N958AM
Type
B738
No current signal · last broadcast Jul 26, 21:45 UTC
Flights observed
206
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:45 UTC

Last known position

Most recent position reported by Mode-S AD526B.

Country allocation

The ICAO 24-bit address AD526B 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
AMX641 Aeroméxico 9 2026-05-16
AMX640 Aeroméxico 6 2026-05-15
AMX411 Aeroméxico 5 2026-04-29
AMX708 Aeroméxico 4 2026-04-23
AMX596 Aeroméxico 4 2026-07-25
AMX591 Aeroméxico 4 2026-07-20
AMX551 Aeroméxico 4 2026-07-25
AMX410 Aeroméxico 4 2026-04-28
AMX197 - 4 2026-06-24
AMX177 Aeroméxico 4 2026-05-04
AMX825 Aeroméxico 3 2026-05-11
AMX643 Aeroméxico 3 2026-05-01
AMX642 Aeroméxico 3 2026-04-30
AMX500 Aeroméxico 3 2026-07-20
AMX495 Aeroméxico 3 2026-06-05
AMX339 Aeroméxico 3 2026-05-08
AMX170 - 3 2026-06-27
AMX939 Aeroméxico 2 2026-05-06
AMX935 Aeroméxico 2 2026-05-27
AMX909 Aeroméxico 2 2026-05-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AMX383 SJD → MEX Jul 26, 21:30 UTCJul 26, 21:45 UTC15m
2026-07-26 AMX382 MEX → SJD Jul 26, 16:30 UTCJul 26, 16:45 UTC15m
2026-07-26 AMX379 SJD → MEX Jul 26, 14:50 UTCJul 26, 15:00 UTC10m
2026-07-26 AMX388 MEX → SJD Jul 26, 03:20 UTCJul 26, 03:35 UTC15m
2026-07-25 AMX551 CUN → MEX Jul 25, 23:45 UTCJul 26, 01:40 UTC1h 55m
2026-07-25 AMX596 NLU → CUN Jul 25, 20:25 UTCJul 25, 22:15 UTC1h 50m
2026-07-20 AMX591 CUN → NLU Jul 20, 15:40 UTCJul 20, 17:25 UTC1h 45m
2026-07-20 AMX500 MEX → CUN Jul 20, 12:45 UTCJul 20, 14:35 UTC1h 50m
2026-07-20 AMX109 - Jul 20, 04:15 UTCJul 20, 04:25 UTC10m
2026-07-20 AMX106 - Jul 20, 00:55 UTCJul 20, 03:40 UTC2h 45m
2026-07-19 AMX107 TRC → MEX Jul 19, 22:25 UTCJul 19, 22:40 UTC15m
2026-07-19 AMX804 - Jul 19, 18:30 UTCJul 19, 18:50 UTC20m
2026-07-19 AMX1455 ZIH → MEX Jul 19, 16:35 UTCJul 19, 17:05 UTC30m
2026-07-19 AMX1452 - Jul 19, 14:35 UTCJul 19, 14:50 UTC15m
2026-07-13 AMX711 - Jul 13, 22:15 UTCJul 13, 22:25 UTC10m
2026-07-13 AMX711 - Jul 13, 20:10 UTCJul 13, 20:25 UTC15m
2026-07-13 AMX704 - Jul 13, 18:05 UTCJul 13, 18:20 UTC15m
2026-07-13 AMX704 - Jul 13, 16:10 UTCJul 13, 16:25 UTC15m
2026-07-13 AMX313 - Jul 13, 12:40 UTCJul 13, 13:30 UTC50m
2026-07-13 AMX322 - Jul 13, 03:50 UTCJul 13, 04:40 UTC50m
2026-07-13 AMX551 - Jul 13, 01:10 UTCJul 13, 02:20 UTC1h 10m
2026-07-13 AMX551 - Jul 13, 00:01 UTCJul 13, 00:30 UTC30m
2026-07-12 AMX596 - Jul 12, 21:55 UTCJul 12, 22:35 UTC40m
2026-07-12 AMX596 - Jul 12, 20:20 UTCJul 12, 21:15 UTC55m
2026-07-08 AMX591 - Jul 8, 19:40 UTCJul 8, 20:40 UTC1h 0m
2026-07-08 AMX591 - Jul 8, 18:40 UTCJul 8, 19:05 UTC25m
2026-07-08 AMX500 - Jul 8, 13:10 UTCJul 8, 15:05 UTC1h 55m
2026-07-07 AMX543 - Jul 7, 21:45 UTCJul 7, 23:40 UTC1h 55m
2026-07-07 AMX524 MEX → CUN Jul 7, 18:30 UTCJul 7, 20:15 UTC1h 45m
2026-07-05 AMX551 - Jul 5, 23:45 UTCJul 6, 01:40 UTC1h 55m
2026-07-05 AMX596 - Jul 5, 20:25 UTCJul 5, 22:15 UTC1h 50m
2026-06-30 AMX591 - Jun 30, 15:40 UTCJun 30, 17:30 UTC1h 50m
2026-06-30 AMX500 - Jun 30, 12:35 UTCJun 30, 14:25 UTC1h 50m
2026-06-29 AMX831 - Jun 29, 16:29 UTCJun 29, 20:49 UTC4h 20m
2026-06-29 AMX101 - Jun 29, 13:14 UTCJun 29, 13:24 UTC10m
2026-06-29 AMX108 - Jun 29, 03:25 UTCJun 29, 12:29 UTC9h 5m
2026-06-29 AMX181 - Jun 29, 00:54 UTCJun 29, 01:05 UTC10m
2026-06-28 AMX181 - Jun 28, 21:59 UTCJun 28, 23:09 UTC1h 10m
2026-06-27 AMX170 - Jun 27, 12:50 UTCJun 27, 15:49 UTC3h 0m
2026-06-26 AMX183 - Jun 26, 05:30 UTCJun 26, 05:35 UTC5m
2026-06-26 AMX183 - Jun 26, 02:34 UTCJun 26, 03:45 UTC1h 10m
2026-06-25 AMX184 - Jun 25, 00:49 UTCJun 25, 03:50 UTC3h 0m
2026-06-24 AMX197 - Jun 24, 22:35 UTCJun 24, 22:49 UTC15m
2026-06-24 AMX197 - Jun 24, 20:14 UTCJun 24, 20:54 UTC40m
2026-06-24 AMX190 - Jun 24, 15:44 UTCJun 24, 18:25 UTC2h 40m
2026-06-23 AMX801 - Jun 23, 12:29 UTCJun 23, 13:24 UTC55m
2026-06-18 AMX812 - Jun 18, 03:50 UTCJun 18, 04:20 UTC30m
2026-06-16 AMX679 GUA → MEX Jun 16, 23:10 UTCJun 17, 00:45 UTC1h 35m
2026-06-16 AMX678 - Jun 16, 21:00 UTCJun 16, 21:10 UTC10m
2026-06-16 AMX678 - Jun 16, 19:40 UTCJun 16, 20:30 UTC51m

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 N958AM page for operator, model, and routing details .

Mode-S AD526B frequently asked

What is Mode-S code AD526B?
AD526B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N958AM.
Where is Mode-S AD526B registered?
Mode-S code AD526B 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 AD526B 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 AD526B, octal 53251153, decimal 11,358,827.
What flights does AD526B operate?
Mode-S AD526B has broadcast 20 distinct callsigns, including AMX641, AMX640, AMX411, AMX708, AMX596.