Apparatus

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sensors Mode-S transponder

AD526C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N958AN · BOEING 737-800 · operated by AMERICAN AIRLINES INC

Hex
AD526C
Octal
53251154
Decimal
11,358,828
Country
US
Tail
N958AN
Type
B738
No current signal · last broadcast Jul 26, 12:45 UTC
Flights observed
474
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 12:45 UTC

Last known position

Most recent position reported by Mode-S AD526C.

Country allocation

The ICAO 24-bit address AD526C 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
AAL1028 - 6 2026-07-09
AAL2664 - 5 2026-07-03
AAL2657 - 5 2026-07-07
AAL1573 - 5 2026-06-24
AAL1103 American Airlines 5 2026-06-13
AAL2581 - 4 2026-06-19
AAL2128 American Airlines 4 2026-05-08
AAL2107 American Airlines 4 2026-04-16
AAL1931 - 4 2026-07-06
AAL1801 American Airlines 4 2026-04-25
AAL1708 - 4 2026-06-24
AAL1181 American Airlines 4 2026-07-26
AAL412 American Airlines 3 2026-07-21
AAL3235 American Airlines 3 2026-05-07
AAL3154 - 3 2026-07-08
AAL3118 American Airlines 3 2026-06-02
AAL3092 American Airlines 3 2026-05-09
AAL2771 American Airlines 3 2026-06-09
AAL2738 - 3 2026-06-13
AAL2567 - 3 2026-06-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL1604 SAT → MIA Jul 26, 10:10 UTCJul 26, 12:45 UTC2h 35m
2026-07-26 AAL1468 MIA → SAT Jul 26, 04:10 UTCJul 26, 06:30 UTC2h 20m
2026-07-26 AAL1468 MIA → SAT Jul 26, 04:09 UTCJul 26, 06:30 UTC2h 21m
2026-07-26 AAL1181 ORD → BOS Jul 26, 00:20 UTCJul 26, 02:30 UTC2h 10m
2026-07-26 AAL1181 ORD → BOS Jul 26, 00:16 UTCJul 26, 02:29 UTC2h 13m
2026-07-25 AAL2819 JFK → ORD Jul 25, 20:45 UTCJul 25, 22:15 UTC1h 30m
2026-07-25 AAL2819 JFK → ORD Jul 25, 20:44 UTCJul 25, 22:13 UTC1h 29m
2026-07-25 AAL2452 JAX → PHL Jul 25, 17:00 UTCJul 25, 18:45 UTC1h 45m
2026-07-25 AAL2452 JAX → PHL Jul 25, 13:50 UTCJul 25, 15:20 UTC1h 30m
2026-07-25 AAL2258 LAS → ORD Jul 25, 04:10 UTCJul 25, 07:20 UTC3h 10m
2026-07-24 AAL3292 ORD → LAS Jul 24, 22:55 UTCJul 25, 02:15 UTC3h 20m
2026-07-24 AAL3292 ORD → LAS Jul 24, 22:53 UTCJul 25, 02:10 UTC3h 17m
2026-07-24 AAL2484 LGA → RDU Jul 24, 17:20 UTCJul 24, 20:55 UTC3h 35m
2026-07-24 AAL2484 LGA → RDU Jul 24, 12:15 UTCJul 24, 16:00 UTC3h 45m
2026-07-23 AAL1574 PHL → CLT Jul 23, 20:49 UTCJul 23, 23:13 UTC2h 24m
2026-07-23 AAL1574 PHL → CLT Jul 23, 20:50 UTCJul 23, 23:00 UTC2h 10m
2026-07-23 AAL2588 CUN → AUS Jul 23, 16:40 UTCJul 23, 18:50 UTC2h 10m
2026-07-23 AAL2588 CUN → AUS Jul 23, 16:39 UTCJul 23, 18:48 UTC2h 9m
2026-07-23 AAL2179 AUS → CUN Jul 23, 13:15 UTCJul 23, 15:35 UTC2h 20m
2026-07-23 AAL935 DCA → PHX Jul 23, 03:00 UTCJul 23, 05:05 UTC2h 5m
2026-07-22 AAL2340 PHL → DFW Jul 22, 21:45 UTCJul 23, 00:30 UTC2h 45m
2026-07-22 AAL2340 PHL → DFW Jul 22, 16:50 UTCJul 22, 20:15 UTC3h 25m
2026-07-22 AAL3027 LAX → CLT Jul 22, 13:00 UTCJul 22, 14:55 UTC1h 55m
2026-07-22 AAL3127 SFO → CLT Jul 22, 02:00 UTCJul 22, 03:30 UTC1h 30m
2026-07-22 AAL3127 SFO → CLT Jul 22, 01:57 UTCJul 22, 03:29 UTC1h 32m
2026-07-21 AAL3056 ORD → MIA Jul 21, 21:20 UTCJul 22, 00:35 UTC3h 15m
2026-07-21 AAL1918 CLT → SFO Jul 21, 17:40 UTCJul 21, 19:00 UTC1h 20m
2026-07-21 AAL1918 CLT → SFO Jul 21, 17:34 UTCJul 21, 19:55 UTC2h 21m
2026-07-21 AAL1918 CLT → SFO Jul 21, 14:00 UTCJul 21, 16:15 UTC2h 15m
2026-07-21 AAL412 BDL → MIA Jul 21, 10:00 UTCJul 21, 12:25 UTC2h 25m
2026-07-21 AAL412 BDL → MIA Jul 21, 09:55 UTCJul 21, 12:29 UTC2h 34m
2026-07-21 AAL1425 DFW → BDL Jul 21, 02:55 UTCJul 21, 06:00 UTC3h 5m
2026-07-19 AAL390 - Jul 19, 17:45 UTCJul 19, 19:55 UTC2h 10m
2026-07-19 AAL389 DFW → MEX Jul 19, 14:15 UTCJul 19, 16:20 UTC2h 5m
2026-07-19 AAL2266 - Jul 19, 11:15 UTCJul 19, 12:05 UTC50m
2026-07-19 AAL3097 DFW → SAT Jul 19, 03:40 UTCJul 19, 04:20 UTC40m
2026-07-18 AAL2353 DFW → TPA Jul 18, 22:25 UTCJul 19, 02:15 UTC3h 50m
2026-07-18 AAL2353 DFW → TPA Jul 18, 17:05 UTCJul 18, 20:15 UTC3h 10m
2026-07-18 AAL1544 SMF → DFW Jul 18, 12:30 UTCJul 18, 15:25 UTC2h 55m
2026-07-18 AAL1094 CLT → BOS Jul 18, 02:40 UTCJul 18, 06:30 UTC3h 51m
2026-07-17 AAL2437 RSW → ORD Jul 17, 21:50 UTCJul 18, 00:51 UTC3h 1m
2026-07-17 AAL2437 - Jul 17, 21:55 UTCJul 18, 01:00 UTC3h 5m
2026-07-17 AAL2437 - Jul 17, 18:05 UTCJul 17, 20:50 UTC2h 45m
2026-07-17 AAL1041 - Jul 17, 14:55 UTCJul 17, 16:34 UTC1h 40m
2026-07-17 AAL2358 DFW → PHL Jul 17, 10:35 UTCJul 17, 13:25 UTC2h 50m
2026-07-15 AAL1356 ATL → DFW Jul 15, 21:40 UTCJul 15, 23:45 UTC2h 5m
2026-07-15 AAL1356 DFW → ATL Jul 15, 18:25 UTCJul 15, 20:00 UTC1h 35m
2026-07-15 AAL2591 - Jul 15, 13:55 UTCJul 15, 16:40 UTC2h 45m
2026-07-15 AAL2958 - Jul 15, 01:45 UTCJul 15, 04:25 UTC2h 40m
2026-07-15 AAL2958 DFW → FAT Jul 15, 01:42 UTCJul 15, 04:36 UTC2h 54m

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 N958AN page for operator, model, and routing details .

Mode-S AD526C frequently asked

What is Mode-S code AD526C?
AD526C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N958AN.
Where is Mode-S AD526C registered?
Mode-S code AD526C 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 AD526C broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 12:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD526C, octal 53251154, decimal 11,358,828.
What flights does AD526C operate?
Mode-S AD526C has broadcast 20 distinct callsigns, including AAL1028, AAL2664, AAL2657, AAL1573, AAL1103.