Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A3C2A9

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N341SV · BOEING 737 MAX 8 · operated by WILMINGTON TRUST CO TRUSTEE

Hex
A3C2A9
Octal
50741251
Decimal
10,732,201
Country
US
Tail
N341SV
Type
B38M
No current signal · last broadcast 2h ago
Flights observed
415
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S A3C2A9.

Country allocation

The ICAO 24-bit address A3C2A9 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
AAL501 - 7 2026-07-03
AAL448 American Airlines 6 2026-06-13
AAL1178 American Airlines 6 2026-06-13
AAL623 - 5 2026-07-04
AAL3262 American Airlines 5 2026-04-17
AAL3171 - 5 2026-07-02
AAL264 - 5 2026-06-19
AAL2343 American Airlines 5 2026-05-18
AAL775 American Airlines 4 2026-05-03
AAL502 - 4 2026-07-03
AAL388 - 4 2026-07-12
AAL3315 - 4 2026-06-17
AAL3165 American Airlines 4 2026-05-07
AAL3152 American Airlines 4 2026-05-19
AAL3125 American Airlines 4 2026-04-28
AAL2724 - 4 2026-07-08
AAL2645 - 4 2026-07-04
AAL2565 - 4 2026-06-20
AAL2278 American Airlines 4 2026-06-01
AAL2165 - 4 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AAL490 ORD → PHL Jul 14, 03:20 UTCJul 14, 04:55 UTC1h 35m
2026-07-13 AAL2520 SEA → ORD Jul 13, 21:40 UTCJul 14, 01:05 UTC3h 25m
2026-07-13 AAL2520 - Jul 13, 15:55 UTCJul 13, 19:40 UTC3h 45m
2026-07-13 AAL392 LGA → ORD Jul 13, 11:45 UTCJul 13, 13:35 UTC1h 50m
2026-07-12 AAL2165 - Jul 12, 23:30 UTCJul 13, 02:40 UTC3h 10m
2026-07-12 AAL2165 LGA → MSY Jul 12, 18:45 UTCJul 12, 21:45 UTC3h 0m
2026-07-12 AAL388 - Jul 12, 15:01 UTCJul 12, 16:40 UTC1h 40m
2026-07-12 AAL388 ORD → LGA Jul 12, 14:58 UTCJul 12, 16:38 UTC1h 40m
2026-07-11 AAL2389 YYC → ORD Jul 11, 20:48 UTCJul 11, 23:55 UTC3h 7m
2026-07-11 AAL2389 YYC → ORD Jul 11, 20:50 UTCJul 11, 23:55 UTC3h 5m
2026-07-11 AAL1056 LGA → YYC Jul 11, 14:20 UTCJul 11, 18:55 UTC4h 35m
2026-07-11 AAL2165 - Jul 11, 01:15 UTCJul 11, 03:45 UTC2h 30m
2026-07-10 AAL2165 LGA → MSY Jul 10, 21:20 UTCJul 10, 23:55 UTC2h 35m
2026-07-10 AAL388 - Jul 10, 16:55 UTCJul 10, 18:35 UTC1h 40m
2026-07-10 AAL388 ORD → LGA Jul 10, 16:52 UTCJul 10, 18:30 UTC1h 38m
2026-07-10 AAL1431 - Jul 10, 12:50 UTCJul 10, 15:40 UTC2h 50m
2026-07-10 AAL2164 - Jul 10, 08:05 UTCJul 10, 08:35 UTC30m
2026-07-09 AAL1129 MIA → MDE Jul 9, 22:09 UTCJul 10, 01:08 UTC2h 59m
2026-07-09 AAL369 - Jul 9, 14:35 UTCJul 9, 19:35 UTC5h 0m
2026-07-08 AAL2035 - Jul 8, 21:30 UTCJul 9, 02:55 UTC5h 25m
2026-07-08 AAL2724 - Jul 8, 19:10 UTCJul 8, 19:40 UTC30m
2026-07-08 AAL2724 SNU → MIA Jul 8, 18:55 UTCJul 8, 19:36 UTC41m
2026-07-08 AAL1579 - Jul 8, 17:15 UTCJul 8, 17:35 UTC20m
2026-07-08 AAL2678 - Jul 8, 13:40 UTCJul 8, 14:10 UTC30m
2026-07-08 AAL17 MIA → HAV Jul 8, 11:20 UTCJul 8, 11:55 UTC35m
2026-07-08 AAL2164 MDE → MIA Jul 8, 05:45 UTCJul 8, 08:48 UTC3h 3m
2026-07-08 AAL2164 MDE → MIA Jul 8, 05:45 UTCJul 8, 08:45 UTC3h 0m
2026-07-07 AAL1129 - Jul 7, 22:55 UTCJul 7, 23:15 UTC20m
2026-07-07 AAL1129 MIA → MDE Jul 7, 22:54 UTCJul 8, 01:49 UTC2h 55m
2026-07-07 AAL2724 - Jul 7, 20:10 UTCJul 7, 20:40 UTC30m
2026-07-07 AAL2724 SNU → MIA Jul 7, 19:55 UTCJul 7, 20:37 UTC42m
2026-07-07 AAL1579 - Jul 7, 18:00 UTCJul 7, 18:25 UTC25m
2026-07-07 AAL2294 - Jul 7, 13:25 UTCJul 7, 15:45 UTC2h 20m
2026-07-07 AAL691 PHX → AUS Jul 7, 03:20 UTCJul 7, 05:10 UTC1h 50m
2026-07-07 AAL691 PHX → AUS Jul 7, 03:16 UTCJul 7, 05:05 UTC1h 49m
2026-07-06 AAL441 - Jul 6, 21:50 UTCJul 7, 02:05 UTC4h 15m
2026-07-06 AAL550 - Jul 6, 15:50 UTCJul 6, 20:10 UTC4h 20m
2026-07-06 AAL550 PHX → FLL Jul 6, 15:47 UTCJul 6, 20:00 UTC4h 13m
2026-07-06 AAL1194 - Jul 6, 13:20 UTCJul 6, 14:10 UTC50m
2026-07-06 AAL1194 ONT → PHX Jul 6, 13:17 UTCJul 6, 14:10 UTC53m
2026-07-06 AAL1238 PHX → ONT Jul 6, 03:35 UTCJul 6, 04:20 UTC45m
2026-07-05 AAL1725 - Jul 5, 22:10 UTCJul 6, 01:30 UTC3h 20m
2026-07-05 AAL1954 PHX → CVG Jul 5, 17:15 UTCJul 5, 20:25 UTC3h 10m
2026-07-05 AAL1954 PHX → CVG Jul 5, 17:15 UTCJul 5, 20:23 UTC3h 8m
2026-07-05 AAL3143 MSP → PHX Jul 5, 13:20 UTCJul 5, 16:00 UTC2h 40m
2026-07-04 AAL2146 PHX → MSP Jul 4, 16:14 UTCJul 4, 18:47 UTC2h 33m
2026-07-04 AAL2146 - Jul 4, 16:15 UTCJul 4, 18:45 UTC2h 30m
2026-07-04 AAL2645 - Jul 4, 11:15 UTCJul 4, 13:45 UTC2h 30m
2026-07-04 AAL2645 MCI → PHX Jul 4, 11:14 UTCJul 4, 13:40 UTC2h 26m
2026-07-04 AAL623 - Jul 4, 02:40 UTCJul 4, 04:15 UTC1h 35m

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 N341SV page for operator, model, and routing details .

Mode-S A3C2A9 frequently asked

What is Mode-S code A3C2A9?
A3C2A9 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N341SV.
Where is Mode-S A3C2A9 registered?
Mode-S code A3C2A9 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 A3C2A9 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3C2A9, octal 50741251, decimal 10,732,201.
What flights does A3C2A9 operate?
Mode-S A3C2A9 has broadcast 20 distinct callsigns, including AAL501, AAL448, AAL1178, AAL623, AAL3262.