Apparatus

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sensors Mode-S transponder

AD1C11

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N944AN · BOEING 737-800 · operated by AMERICAN AIRLINES INC

Hex
AD1C11
Octal
53216021
Decimal
11,344,913
Country
US
Tail
N944AN
Type
B738
No current signal · last broadcast Jul 26, 21:55 UTC
Flights observed
486
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:55 UTC

Last known position

Most recent position reported by Mode-S AD1C11.

Country allocation

The ICAO 24-bit address AD1C11 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
AAL2630 - 6 2026-07-02
AAL2523 American Airlines 5 2026-06-07
AAL1944 American Airlines 5 2026-05-28
AAL1713 American Airlines 5 2026-06-09
AAL1593 - 5 2026-07-12
AAL1279 - 5 2026-06-16
AAL525 American Airlines 4 2026-05-18
AAL2725 American Airlines 4 2026-05-01
AAL2446 American Airlines 4 2026-06-09
AAL1551 - 4 2026-07-04
AAL815 - 3 2026-07-14
AAL791 American Airlines 3 2026-04-16
AAL463 - 3 2026-06-23
AAL395 American Airlines 3 2026-05-10
AAL3300 - 3 2026-07-03
AAL3249 American Airlines 3 2026-05-29
AAL314 American Airlines 3 2026-06-08
AAL3063 American Airlines 3 2026-05-22
AAL2933 American Airlines 3 2026-04-14
AAL2904 - 3 2026-04-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL394 MSN → CLT Jul 26, 19:45 UTCJul 26, 21:50 UTC2h 5m
2026-07-26 AAL393 DFW → MEX Jul 26, 15:55 UTCJul 26, 18:05 UTC2h 10m
2026-07-26 AAL393 DFW → MEX Jul 26, 15:52 UTCJul 26, 18:03 UTC2h 11m
2026-07-26 AAL1220 PBI → DFW Jul 26, 11:10 UTCJul 26, 13:35 UTC2h 25m
2026-07-26 AAL3145 LCH → DFW Jul 26, 00:10 UTCJul 26, 02:15 UTC2h 5m
2026-07-25 AAL3003 SDF → DFW Jul 25, 13:20 UTCJul 25, 21:45 UTC8h 25m
2026-07-24 AAL1331 DFW → SNA Jul 24, 20:25 UTCJul 24, 22:25 UTC2h 0m
2026-07-24 AAL1101 BOS → AUS Jul 24, 15:45 UTCJul 24, 18:15 UTC2h 30m
2026-07-24 AAL2380 JFK → FLL Jul 24, 11:25 UTCJul 24, 13:30 UTC2h 5m
2026-07-24 AAL1540 SEA → ORD Jul 24, 00:00 UTCJul 24, 00:55 UTC55m
2026-07-23 AAL2853 DFW → ELP Jul 23, 20:40 UTCJul 23, 22:25 UTC1h 45m
2026-07-23 AAL2853 DFW → ELP Jul 23, 17:40 UTCJul 23, 19:35 UTC1h 55m
2026-07-23 AAL2200 PHL → MSY Jul 23, 14:30 UTCJul 23, 16:00 UTC1h 30m
2026-07-23 AAL2200 PHL → MSY Jul 23, 14:29 UTCJul 23, 16:00 UTC1h 31m
2026-07-23 AAL2183 DFW → MSY Jul 23, 12:10 UTCJul 23, 13:20 UTC1h 10m
2026-07-23 AAL3323 LAS → ORD Jul 23, 00:30 UTCJul 23, 03:45 UTC3h 15m
2026-07-22 AAL1722 LGA → CLT Jul 22, 21:30 UTCJul 22, 23:00 UTC1h 30m
2026-07-22 AAL2681 CLT → PWM Jul 22, 18:40 UTCJul 22, 20:00 UTC1h 20m
2026-07-22 AAL3022 MIA → LGA Jul 22, 14:40 UTCJul 22, 17:15 UTC2h 35m
2026-07-22 AAL3022 MIA → LGA Jul 22, 11:15 UTCJul 22, 13:00 UTC1h 45m
2026-07-21 AAL1424 ORD → FLL Jul 21, 23:55 UTCJul 22, 02:15 UTC2h 20m
2026-07-21 AAL3062 - Jul 21, 20:15 UTCJul 21, 21:20 UTC1h 5m
2026-07-21 AAL3062 - Jul 21, 18:30 UTCJul 21, 18:35 UTC5m
2026-07-21 AAL1641 CLT → MEM Jul 21, 16:50 UTCJul 21, 17:05 UTC15m
2026-07-21 AAL1641 CLT → MEM Jul 21, 14:45 UTCJul 21, 16:15 UTC1h 30m
2026-07-21 AAL1641 CLT → MEM Jul 21, 14:44 UTCJul 21, 17:01 UTC2h 17m
2026-07-21 AAL1418 BOS → MIA Jul 21, 09:20 UTCJul 21, 12:05 UTC2h 45m
2026-07-21 AAL1418 BOS → MIA Jul 21, 09:19 UTCJul 21, 12:04 UTC2h 45m
2026-07-21 AAL3107 PHL → BOS Jul 21, 00:55 UTCJul 21, 02:35 UTC1h 40m
2026-07-20 AAL2867 DEN → PHL Jul 20, 19:50 UTCJul 20, 23:10 UTC3h 20m
2026-07-20 AAL2867 DEN → PHL Jul 20, 15:35 UTCJul 20, 18:35 UTC3h 0m
2026-07-20 AAL2112 BUF → ORD Jul 20, 12:15 UTCJul 20, 13:35 UTC1h 20m
2026-07-20 AAL703 - Jul 20, 01:25 UTCJul 20, 02:40 UTC1h 15m
2026-07-19 AAL1683 PHL → IND Jul 19, 22:00 UTCJul 19, 23:25 UTC1h 25m
2026-07-19 AAL1683 PHL → IND Jul 19, 21:57 UTCJul 19, 23:24 UTC1h 27m
2026-07-19 AAL2020 LAS → ORD Jul 19, 17:02 UTCJul 19, 20:10 UTC3h 8m
2026-07-19 AAL2020 LAS → ORD Jul 19, 17:05 UTCJul 19, 20:15 UTC3h 10m
2026-07-19 AAL2020 - Jul 19, 11:50 UTCJul 19, 14:50 UTC3h 0m
2026-07-19 AAL2440 - Jul 19, 02:00 UTCJul 19, 05:55 UTC3h 55m
2026-07-18 AAL672 - Jul 18, 18:25 UTCJul 18, 21:10 UTC2h 45m
2026-07-18 AAL672 ORD → FLL Jul 18, 18:22 UTCJul 18, 21:10 UTC2h 48m
2026-07-18 AAL3008 PHX → ORD Jul 18, 13:30 UTCJul 18, 16:45 UTC3h 15m
2026-07-18 AAL1937 CLT → BOS Jul 18, 05:30 UTCJul 18, 07:45 UTC2h 15m
2026-07-18 AAL1937 CLT → BOS Jul 18, 05:30 UTCJul 18, 07:56 UTC2h 26m
2026-07-18 AAL2935 SAN → CLT Jul 18, 00:55 UTCJul 18, 02:50 UTC1h 56m
2026-07-17 AAL898 LIR → CLT Jul 17, 18:23 UTCJul 17, 22:06 UTC3h 43m
2026-07-17 AAL898 - Jul 17, 14:50 UTCJul 17, 22:10 UTC7h 20m
2026-07-17 AAL1047 - Jul 17, 10:20 UTCJul 17, 12:45 UTC2h 25m
2026-07-17 AAL2541 - Jul 17, 00:04 UTCJul 17, 02:20 UTC2h 15m
2026-07-16 AAL2753 STX → MIA Jul 16, 19:46 UTCJul 16, 22:13 UTC2h 27m

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 N944AN page for operator, model, and routing details .

Mode-S AD1C11 frequently asked

What is Mode-S code AD1C11?
AD1C11 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N944AN.
Where is Mode-S AD1C11 registered?
Mode-S code AD1C11 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 AD1C11 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD1C11, octal 53216021, decimal 11,344,913.
What flights does AD1C11 operate?
Mode-S AD1C11 has broadcast 20 distinct callsigns, including AAL2630, AAL2523, AAL1944, AAL1713, AAL1593.