Apparatus

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sensors Mode-S transponder

AD049A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N938NN · BOEING 737-800 · operated by BANK OF UTAH TRUSTEE

Hex
AD049A
Octal
53202232
Decimal
11,338,906
Country
US
Tail
N938NN
Type
B738
Broadcasting now · callsign AAL1719 · 37,000 ft
Flights observed
553
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:15 UTC

Current position

AD049A is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AD049A 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
AAL1443 - 9 2026-06-15
AAL903 American Airlines 7 2026-04-26
AAL893 - 6 2026-06-15
AAL1936 American Airlines 6 2026-06-07
AAL1492 American Airlines 6 2026-05-28
AAL2433 - 5 2026-07-07
AAL2337 American Airlines 5 2026-05-29
AAL2302 - 5 2026-07-16
AAL2152 - 5 2026-07-15
AAL1728 - 5 2026-07-14
AAL1520 - 5 2026-06-23
AAL482 American Airlines 4 2026-06-10
AAL355 - 4 2026-07-03
AAL3096 - 4 2026-07-16
AAL2614 American Airlines 4 2026-05-16
AAL1930 American Airlines 4 2026-06-05
AAL1915 - 4 2026-06-19
AAL611 American Airlines 3 2026-04-23
AAL501 American Airlines 3 2026-05-07
AAL468 - 3 2026-06-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL3050 MFE → DFW Jul 26, 20:30 UTCJul 26, 22:10 UTC1h 40m
2026-07-26 AAL2079 ORD → LGA Jul 26, 16:30 UTCJul 26, 18:20 UTC1h 50m
2026-07-26 AAL2079 ORD → LGA Jul 26, 16:25 UTCJul 26, 18:18 UTC1h 53m
2026-07-26 AAL2079 ORD → LGA Jul 26, 13:20 UTCJul 26, 15:00 UTC1h 40m
2026-07-26 AAL2949 CLT → BOS Jul 26, 08:10 UTCJul 26, 11:25 UTC3h 15m
2026-07-26 AAL2949 CLT → BOS Jul 26, 08:10 UTCJul 26, 11:25 UTC3h 15m
2026-07-25 AAL3292 ORD → LAS Jul 25, 22:50 UTCJul 26, 02:00 UTC3h 10m
2026-07-25 AAL3292 ORD → LAS Jul 25, 22:48 UTCJul 26, 02:03 UTC3h 15m
2026-07-25 AAL2834 SJC → DFW Jul 25, 19:00 UTCJul 25, 21:20 UTC2h 20m
2026-07-25 AAL2920 TPA → ORD Jul 25, 15:30 UTCJul 25, 17:35 UTC2h 5m
2026-07-25 AAL2057 PHL → DFW Jul 25, 01:45 UTCJul 25, 03:35 UTC1h 50m
2026-07-24 AAL610 PHL → DFW Jul 24, 20:00 UTCJul 24, 23:00 UTC3h 0m
2026-07-24 AAL1680 DFW → CAE Jul 24, 16:15 UTCJul 24, 18:30 UTC2h 15m
2026-07-24 AAL1680 DFW → CAE Jul 24, 12:50 UTCJul 24, 14:55 UTC2h 5m
2026-07-24 AAL2563 AUS → DFW Jul 24, 10:15 UTCJul 24, 11:00 UTC45m
2026-07-24 AAL691 PHX → AUS Jul 24, 02:50 UTCJul 24, 04:55 UTC2h 5m
2026-07-23 AAL441 SRQ → ORD Jul 23, 21:30 UTCJul 24, 01:25 UTC3h 55m
2026-07-23 AAL550 JAX → PHL Jul 23, 15:45 UTCJul 23, 19:55 UTC4h 10m
2026-07-22 AAL3078 DFW → DTW Jul 22, 22:50 UTCJul 23, 02:00 UTC3h 10m
2026-07-22 AAL1899 - Jul 22, 18:00 UTCJul 22, 21:35 UTC3h 35m
2026-07-22 AAL3237 PHL → BOS Jul 22, 12:25 UTCJul 22, 16:10 UTC3h 45m
2026-07-22 AAL3237 PHL → BOS Jul 22, 12:24 UTCJul 22, 15:56 UTC3h 32m
2026-07-22 AAL2149 DCA → BOS Jul 22, 10:20 UTCJul 22, 11:20 UTC1h 0m
2026-07-21 AAL2301 CLT → BUF Jul 21, 22:50 UTCJul 22, 03:25 UTC4h 35m
2026-07-21 AAL2301 CLT → BUF Jul 21, 22:47 UTCJul 22, 03:25 UTC4h 38m
2026-07-21 AAL2301 CLT → BUF Jul 21, 17:00 UTCJul 21, 21:10 UTC4h 10m
2026-07-21 AAL1225 - Jul 21, 10:45 UTCJul 21, 15:35 UTC4h 50m
2026-07-21 AAL1200 LAX → IAD Jul 21, 04:30 UTCJul 21, 09:30 UTC5h 0m
2026-07-20 AAL1686 - Jul 20, 22:15 UTCJul 21, 02:25 UTC4h 9m
2026-07-20 AAL1686 - Jul 20, 16:50 UTCJul 20, 20:55 UTC4h 5m
2026-07-20 AAL2547 MEX → LAX Jul 20, 02:00 UTCJul 20, 05:15 UTC3h 15m
2026-07-19 AAL2546 - Jul 19, 23:55 UTCJul 20, 00:10 UTC15m
2026-07-19 AAL2546 - Jul 19, 20:55 UTCJul 19, 22:15 UTC1h 20m
2026-07-19 AAL1291 - Jul 19, 02:05 UTCJul 19, 04:35 UTC2h 30m
2026-07-18 AAL2892 - Jul 18, 23:05 UTCJul 19, 01:00 UTC1h 55m
2026-07-18 AAL2548 HAF → PHX Jul 18, 19:50 UTCJul 18, 21:20 UTC1h 30m
2026-07-18 AAL1586 - Jul 18, 14:00 UTCJul 18, 18:10 UTC4h 10m
2026-07-18 AAL1360 DFW → ORD Jul 18, 10:05 UTCJul 18, 12:10 UTC2h 5m
2026-07-18 AAL1360 DFW → ORD Jul 18, 10:02 UTCJul 18, 12:00 UTC1h 58m
2026-07-18 AAL2673 - Jul 18, 04:05 UTCJul 18, 05:35 UTC1h 30m
2026-07-18 AAL2673 - Jul 18, 00:19 UTCJul 18, 01:45 UTC1h 25m
2026-07-17 AAL3167 - Jul 17, 20:44 UTCJul 17, 22:49 UTC2h 5m
2026-07-17 AAL3167 DFW → GRR Jul 17, 16:49 UTCJul 17, 18:55 UTC2h 5m
2026-07-17 AAL1884 - Jul 17, 12:00 UTCJul 17, 13:05 UTC1h 5m
2026-07-17 AAL1884 MEM → DFW Jul 17, 11:57 UTCJul 17, 13:04 UTC1h 7m
2026-07-17 AAL1646 DFW → MEM Jul 17, 04:15 UTCJul 17, 05:30 UTC1h 15m
2026-07-17 AAL1646 DFW → MEM Jul 17, 04:14 UTCJul 17, 05:35 UTC1h 20m
2026-07-16 AAL1571 LGA → DFW Jul 16, 22:59 UTCJul 17, 02:05 UTC3h 5m
2026-07-16 AAL2302 BNA → LGA Jul 16, 19:40 UTCJul 16, 21:30 UTC1h 50m
2026-07-16 AAL2302 LGA → BNA Jul 16, 16:09 UTCJul 16, 18:00 UTC1h 50m

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 N938NN page for operator, model, and routing details .

Mode-S AD049A frequently asked

What is Mode-S code AD049A?
AD049A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N938NN.
Where is Mode-S AD049A registered?
Mode-S code AD049A 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 AD049A broadcasting right now?
Yes. Mode-S AD049A is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD049A, octal 53202232, decimal 11,338,906.
What flights does AD049A operate?
Mode-S AD049A has broadcast 20 distinct callsigns, including AAL1443, AAL903, AAL893, AAL1936, AAL1492.