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 Jul 26, 22:30 UTC
Flights observed
464
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:30 UTC

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
AAL2510 American Airlines 6 2026-07-26
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
AAL1839 American Airlines 5 2026-07-26
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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL2510 LGA → MIA Jul 26, 19:50 UTCJul 26, 22:30 UTC2h 40m
2026-07-26 AAL2510 LGA → MIA Jul 26, 15:45 UTCJul 26, 18:30 UTC2h 45m
2026-07-26 AAL1839 DCA → DFW Jul 26, 11:10 UTCJul 26, 13:45 UTC2h 35m
2026-07-26 AAL1839 DCA → DFW Jul 26, 11:10 UTCJul 26, 13:46 UTC2h 36m
2026-07-26 AAL2752 DFW → DCA Jul 26, 00:10 UTCJul 26, 02:35 UTC2h 25m
2026-07-25 AAL1793 CLT → MSY Jul 25, 20:15 UTCJul 25, 22:20 UTC2h 5m
2026-07-25 AAL1793 CLT → MSY Jul 25, 16:50 UTCJul 25, 19:00 UTC2h 10m
2026-07-25 AAL1774 DFW → EUG Jul 25, 00:15 UTCJul 25, 15:20 UTC15h 5m
2026-07-24 AAL2510 LGA → MIA Jul 24, 19:45 UTCJul 24, 22:45 UTC3h 0m
2026-07-24 AAL2510 LGA → MIA Jul 24, 15:45 UTCJul 24, 18:30 UTC2h 45m
2026-07-24 AAL1839 DCA → DFW Jul 24, 11:10 UTCJul 24, 13:50 UTC2h 40m
2026-07-24 AAL1839 DCA → DFW Jul 24, 11:10 UTCJul 24, 13:44 UTC2h 34m
2026-07-24 AAL708 CUR → MIA Jul 24, 02:25 UTCJul 24, 04:30 UTC2h 5m
2026-07-23 AAL2979 PHL → MCO Jul 23, 20:14 UTCJul 24, 00:50 UTC4h 36m
2026-07-23 AAL2979 PHL → MCO Jul 23, 20:15 UTCJul 24, 00:30 UTC4h 15m
2026-07-23 AAL2979 PHL → MCO Jul 23, 13:15 UTCJul 23, 17:55 UTC4h 40m
2026-07-22 AAL496 GUA → DFW Jul 22, 23:35 UTCJul 23, 03:45 UTC4h 10m
2026-07-22 AAL896 MIA → BOS Jul 22, 17:55 UTCJul 22, 21:55 UTC4h 0m
2026-07-22 AAL658 LGA → DFW Jul 22, 11:04 UTCJul 22, 15:00 UTC3h 56m
2026-07-21 AAL658 LGA → DFW Jul 21, 23:30 UTCJul 22, 15:00 UTC15h 30m
2026-07-21 AAL3315 PVD → DCA Jul 21, 18:45 UTCJul 21, 21:10 UTC2h 25m
2026-07-21 AAL3315 PVD → DCA Jul 21, 14:20 UTCJul 21, 16:35 UTC2h 15m
2026-07-21 AAL1342 - Jul 21, 11:00 UTCJul 21, 12:50 UTC1h 50m
2026-07-21 AAL1721 PWM → DCA Jul 21, 03:35 UTCJul 21, 05:30 UTC1h 55m
2026-07-21 AAL1721 PWM → DCA Jul 21, 03:33 UTCJul 21, 05:24 UTC1h 51m
2026-07-20 AAL3119 ORD → LGA Jul 20, 23:55 UTCJul 21, 02:25 UTC2h 30m
2026-07-20 AAL1823 PHX → IND Jul 20, 19:30 UTCJul 20, 22:20 UTC2h 50m
2026-07-20 AAL1380 BOS → CLT Jul 20, 15:35 UTCJul 20, 18:10 UTC2h 35m
2026-07-19 AAL2768 TPA → ORD Jul 19, 23:40 UTCJul 20, 02:05 UTC2h 25m
2026-07-19 AAL2768 ORD → TPA Jul 19, 20:00 UTCJul 19, 22:15 UTC2h 15m
2026-07-19 AAL1431 MIA → ORD Jul 19, 15:15 UTCJul 19, 18:05 UTC2h 50m
2026-07-19 AAL1431 MIA → ORD Jul 19, 15:11 UTCJul 19, 17:58 UTC2h 47m
2026-07-19 AAL2162 UIO → MIA Jul 19, 05:11 UTCJul 19, 08:58 UTC3h 47m
2026-07-18 AAL2162 - Jul 18, 23:10 UTCJul 19, 08:55 UTC9h 45m
2026-07-18 AAL1126 - Jul 18, 17:40 UTCJul 18, 20:50 UTC3h 10m
2026-07-18 AAL1123 - Jul 18, 13:00 UTCJul 18, 16:15 UTC3h 15m
2026-07-18 AAL1123 MIA → BOG Jul 18, 12:58 UTCJul 18, 16:11 UTC3h 13m
2026-07-18 AAL2164 - Jul 18, 05:50 UTCJul 18, 08:40 UTC2h 50m
2026-07-18 AAL2164 MDE → MIA Jul 18, 05:43 UTCJul 18, 08:39 UTC2h 56m
2026-07-17 AAL1129 - Jul 17, 23:30 UTCJul 18, 02:14 UTC2h 45m
2026-07-17 AAL369 OAK → MIA Jul 17, 14:44 UTCJul 17, 20:50 UTC6h 5m
2026-07-16 AAL2035 HWO → SFO Jul 16, 23:49 UTCJul 17, 05:10 UTC5h 20m
2026-07-16 AAL2724 - Jul 16, 20:09 UTCJul 16, 20:29 UTC20m
2026-07-16 AAL2724 SNU → MIA Jul 16, 20:04 UTCJul 16, 20:54 UTC50m
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

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 Jul 26, 22:30 UTC.
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, AAL2510.