Apparatus

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sensors Mode-S transponder

A3DCC2

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N348TU · operated by AMERICAN AIRLINES INC

Hex
A3DCC2
Octal
50756302
Decimal
10,738,882
Country
US
Tail
N348TU
Type
B38M
No current signal · last broadcast 7h ago
Flights observed
420
Distinct callsigns
20
Country
US
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S A3DCC2.

Country allocation

The ICAO 24-bit address A3DCC2 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
AAL903 American Airlines 10 2026-06-20
AAL2644 American Airlines 7 2026-06-09
AAL1137 American Airlines 7 2026-06-12
AAL2996 American Airlines 6 2026-05-10
AAL763 American Airlines 5 2026-05-10
AAL3316 American Airlines 5 2026-05-19
AAL3193 American Airlines 5 2026-05-31
AAL3099 - 5 2026-04-13
AAL2995 American Airlines 5 2026-05-09
AAL2865 American Airlines 5 2026-05-18
AAL2672 American Airlines 5 2026-05-25
AAL1652 American Airlines 5 2026-06-04
AAL1253 - 5 2026-04-13
AAL3208 American Airlines 4 2026-04-16
AAL2920 American Airlines 4 2026-04-15
AAL2680 - 4 2026-07-08
AAL1798 American Airlines 4 2026-05-10
AAL981 - 3 2026-07-04
AAL916 American Airlines 3 2026-04-20
AAL833 American Airlines 3 2026-05-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AAL1579 - Jul 14, 16:50 UTCJul 14, 17:15 UTC25m
2026-07-14 AAL1579 MIA → SNU Jul 14, 16:49 UTCJul 14, 17:33 UTC44m
2026-07-14 AAL3121 - Jul 14, 11:15 UTCJul 14, 14:40 UTC3h 25m
2026-07-13 AAL2606 - Jul 13, 22:50 UTCJul 14, 01:50 UTC3h 0m
2026-07-13 AAL2744 - Jul 13, 19:50 UTCJul 13, 20:20 UTC30m
2026-07-13 AAL2744 - Jul 13, 14:15 UTCJul 13, 16:30 UTC2h 15m
2026-07-13 AAL401 DCA → MIA Jul 13, 10:10 UTCJul 13, 12:15 UTC2h 5m
2026-07-13 AAL401 DCA → MIA Jul 13, 10:08 UTCJul 13, 12:11 UTC2h 3m
2026-07-13 AAL2077 DFW → DCA Jul 13, 03:25 UTCJul 13, 05:50 UTC2h 25m
2026-07-13 AAL2077 DFW → DCA Jul 13, 03:21 UTCJul 13, 05:45 UTC2h 24m
2026-07-12 AAL324 - Jul 12, 22:05 UTCJul 13, 01:05 UTC3h 0m
2026-07-12 AAL324 - Jul 12, 17:05 UTCJul 12, 19:40 UTC2h 35m
2026-07-12 AAL1774 - Jul 12, 00:35 UTCJul 12, 15:20 UTC14h 45m
2026-07-11 AAL2510 - Jul 11, 19:50 UTCJul 11, 22:40 UTC2h 50m
2026-07-11 AAL2510 - Jul 11, 15:50 UTCJul 11, 18:40 UTC2h 50m
2026-07-11 AAL1839 DCA → DFW Jul 11, 11:15 UTCJul 11, 14:05 UTC2h 50m
2026-07-10 AAL591 - Jul 10, 20:45 UTCJul 11, 01:10 UTC4h 25m
2026-07-10 AAL591 LAX → DCA Jul 10, 20:43 UTCJul 11, 01:10 UTC4h 27m
2026-07-10 AAL1966 - Jul 10, 13:05 UTCJul 10, 18:00 UTC4h 55m
2026-07-10 AAL1542 PHX → DCA Jul 10, 07:25 UTCJul 10, 11:25 UTC4h 0m
2026-07-10 AAL1968 - Jul 10, 02:05 UTCJul 10, 06:05 UTC4h 0m
2026-07-10 AAL1968 MIA → PHX Jul 10, 02:00 UTCJul 10, 06:04 UTC4h 4m
2026-07-09 AAL3300 - Jul 9, 22:00 UTCJul 10, 00:35 UTC2h 35m
2026-07-09 AAL3300 - Jul 9, 20:40 UTCJul 9, 21:00 UTC20m
2026-07-09 AAL3300 - Jul 9, 18:40 UTCJul 9, 19:00 UTC20m
2026-07-09 AAL1469 CUN → MIA Jul 9, 15:56 UTCJul 9, 17:12 UTC1h 16m
2026-07-09 AAL1469 - Jul 9, 16:00 UTCJul 9, 17:15 UTC1h 15m
2026-07-09 AAL2494 HWO → CUN Jul 9, 12:50 UTCJul 9, 14:05 UTC1h 15m
2026-07-09 AAL2494 MIA → CUN Jul 9, 12:46 UTCJul 9, 14:03 UTC1h 17m
2026-07-09 AAL1080 LAS → MIA Jul 9, 05:40 UTCJul 9, 09:55 UTC4h 15m
2026-07-08 AAL2864 DFW → LAS Jul 8, 22:30 UTCJul 9, 00:45 UTC2h 15m
2026-07-08 AAL2680 - Jul 8, 17:45 UTCJul 8, 20:30 UTC2h 45m
2026-07-08 AAL2680 - Jul 8, 13:45 UTCJul 8, 16:15 UTC2h 30m
2026-07-08 AAL2438 OKC → DFW Jul 8, 00:10 UTCJul 8, 00:45 UTC35m
2026-07-07 AAL2438 RSW → OKC Jul 7, 19:10 UTCJul 7, 22:25 UTC3h 15m
2026-07-07 AAL2438 DFW → RSW Jul 7, 15:30 UTCJul 7, 17:45 UTC2h 15m
2026-07-07 AAL475 JFK → DFW Jul 7, 10:40 UTCJul 7, 13:55 UTC3h 15m
2026-07-07 AAL475 JFK → DFW Jul 7, 10:40 UTCJul 7, 13:51 UTC3h 11m
2026-07-07 AAL1409 AUS → JFK Jul 7, 01:05 UTCJul 7, 04:40 UTC3h 35m
2026-07-06 AAL1427 - Jul 6, 02:50 UTCJul 6, 05:10 UTC2h 20m
2026-07-06 AAL1427 MIA → AUS Jul 6, 02:48 UTCJul 6, 05:10 UTC2h 22m
2026-07-05 AAL1612 - Jul 5, 22:30 UTCJul 6, 00:55 UTC2h 25m
2026-07-05 AAL2837 TPA → DCA Jul 5, 17:45 UTCJul 5, 19:40 UTC1h 55m
2026-07-05 AAL2852 DFW → MBJ Jul 5, 14:40 UTCJul 5, 16:30 UTC1h 50m
2026-07-04 AAL1623 - Jul 4, 11:45 UTCJul 4, 14:20 UTC2h 35m
2026-07-04 AAL310P - Jul 4, 05:00 UTCJul 4, 07:20 UTC2h 20m
2026-07-04 AAL310P GRR → DFW Jul 4, 04:56 UTCJul 4, 07:18 UTC2h 22m
2026-07-04 AAL981 - Jul 4, 01:55 UTCJul 4, 04:00 UTC2h 5m
2026-07-04 AAL981 DFW → GRR Jul 4, 01:53 UTCJul 4, 04:01 UTC2h 8m
2026-07-03 AAL1617 TUS → ORD Jul 3, 20:15 UTCJul 3, 22:55 UTC2h 40m

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 N348TU page for operator, model, and routing details .

Mode-S A3DCC2 frequently asked

What is Mode-S code A3DCC2?
A3DCC2 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N348TU.
Where is Mode-S A3DCC2 registered?
Mode-S code A3DCC2 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 A3DCC2 broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3DCC2, octal 50756302, decimal 10,738,882.
What flights does A3DCC2 operate?
Mode-S A3DCC2 has broadcast 20 distinct callsigns, including AAL903, AAL2644, AAL1137, AAL2996, AAL763.