Apparatus

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sensors Mode-S transponder

A9FDC3

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N743AV · AIRBUS A-320 · operated by UMB BANK NA TRUSTEE

Hex
A9FDC3
Octal
52376703
Decimal
11,140,547
Country
US
Tail
N743AV
Type
A320
No current signal · last broadcast Jul 26, 20:45 UTC
Flights observed
319
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:45 UTC

Last known position

Most recent position reported by Mode-S A9FDC3.

Country allocation

The ICAO 24-bit address A9FDC3 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
TAI528 Avianca El Salvador 5 2026-05-11
AVA9491 - 5 2026-07-12
TAI529 Avianca El Salvador 4 2026-05-11
LRC661 LACSA 4 2026-05-24
LRC660 LACSA 4 2026-05-23
AVA9842 Avianca - Aerovias Nacionales de Colombia, S.A. 4 2026-07-24
AVA9841 Avianca - Aerovias Nacionales de Colombia, S.A. 4 2026-07-24
AVA9782 Avianca - Aerovias Nacionales de Colombia, S.A. 4 2026-06-06
AVA044 Avianca - Aerovias Nacionales de Colombia, S.A. 4 2026-06-09
TAI568 Avianca El Salvador 3 2026-04-16
TAI523 Avianca El Salvador 3 2026-04-16
TAI522 Avianca El Salvador 3 2026-04-15
TAI444 Avianca El Salvador 3 2026-05-03
TAI440 Avianca El Salvador 3 2026-07-21
TAI397 Avianca El Salvador 3 2026-05-12
TAI385 Avianca El Salvador 3 2026-07-22
TAI310 Avianca El Salvador 3 2026-05-12
AVA9840 - 3 2026-07-11
AVA9492 - 3 2026-07-12
AVA9361 - 3 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AVA9340 BOG → MDE Jul 26, 20:25 UTCJul 26, 20:45 UTC20m
2026-07-26 AVA9724 BOG → CUC Jul 26, 15:55 UTCJul 26, 16:15 UTC20m
2026-07-26 AVA8487 SMR → BOG Jul 26, 13:45 UTCJul 26, 14:45 UTC1h 0m
2026-07-26 AVA9720 BOG → SMR Jul 26, 11:10 UTCJul 26, 12:05 UTC55m
2026-07-26 AVA9251 CTG → BOG Jul 26, 02:25 UTCJul 26, 03:25 UTC1h 0m
2026-07-25 AVA8480 BOG → CTG Jul 25, 23:55 UTCJul 26, 01:15 UTC1h 20m
2026-07-25 AVA9418 PEI → BOG Jul 25, 21:55 UTCJul 25, 22:20 UTC25m
2026-07-25 AVA8473 SMR → PEI Jul 25, 19:50 UTCJul 25, 20:50 UTC1h 0m
2026-07-25 AVA8474 PEI → SMR Jul 25, 17:40 UTCJul 25, 18:35 UTC55m
2026-07-25 AVA8503 BOG → PEI Jul 25, 16:10 UTCJul 25, 16:35 UTC25m
2026-07-25 AVA9407 CUC → BOG Jul 25, 13:20 UTCJul 25, 13:40 UTC20m
2026-07-25 AVA9346 MDE → ADZ Jul 25, 00:35 UTCJul 25, 03:20 UTC2h 45m
2026-07-24 AVA9842 AXM → BOG Jul 24, 22:50 UTCJul 24, 23:25 UTC35m
2026-07-24 AVA9841 CTG → BGA Jul 24, 21:25 UTCJul 24, 21:55 UTC30m
2026-07-24 AVA9711 BGA → BOG Jul 24, 19:00 UTCJul 24, 19:15 UTC15m
2026-07-24 AVA9710 BOG → BGA Jul 24, 17:10 UTCJul 24, 17:25 UTC15m
2026-07-24 AVA8512 PEI → BOG Jul 24, 15:25 UTCJul 24, 15:50 UTC25m
2026-07-24 AVA8407 BOG → PEI Jul 24, 13:40 UTCJul 24, 14:10 UTC30m
2026-07-24 AVA9218 CLO → BOG Jul 24, 11:45 UTCJul 24, 12:10 UTC25m
2026-07-24 AVA9842 AXM → BOG Jul 24, 00:00 UTCJul 24, 00:30 UTC30m
2026-07-23 AVA9841 CTG → BGA Jul 23, 22:25 UTCJul 23, 22:50 UTC25m
2026-07-23 AVA9228 CLO → BOG Jul 23, 20:15 UTCJul 23, 20:30 UTC15m
2026-07-23 AVA8411 BOG → CLO Jul 23, 18:10 UTCJul 23, 18:25 UTC15m
2026-07-23 AVA9712 CLO → BOG Jul 23, 15:35 UTCJul 23, 15:50 UTC15m
2026-07-23 AVA8469 BOG → CLO Jul 23, 04:10 UTCJul 23, 04:25 UTC15m
2026-07-23 AVA9325 MDE → BOG Jul 23, 00:20 UTCJul 23, 00:35 UTC15m
2026-07-22 AVA9350 BOG → MDE Jul 22, 22:35 UTCJul 22, 22:50 UTC15m
2026-07-22 TAI385 SAL → BOG Jul 22, 18:55 UTCJul 22, 20:50 UTC1h 55m
2026-07-22 TAI521 LAX → SAL Jul 22, 11:35 UTCJul 22, 13:05 UTC1h 30m
2026-07-22 TAI520 SAL → LAX Jul 22, 00:15 UTCJul 22, 04:40 UTC4h 25m
2026-07-21 TAI441 DFW → SAL Jul 21, 19:15 UTCJul 21, 22:05 UTC2h 50m
2026-07-21 TAI440 SAL → DFW Jul 21, 15:40 UTCJul 21, 16:45 UTC1h 5m
2026-07-21 TAI440 SAL → DFW Jul 21, 13:55 UTCJul 21, 14:20 UTC25m
2026-07-21 TAI591 IAD → SAL Jul 21, 08:20 UTCJul 21, 11:55 UTC3h 35m
2026-07-21 TAI590 SAL → IAD Jul 21, 02:55 UTCJul 21, 06:30 UTC3h 35m
2026-07-20 TAI431 MEX → SAL Jul 20, 23:40 UTCJul 21, 01:15 UTC1h 35m
2026-07-20 LRC632 SJO → MEX Jul 20, 18:50 UTCJul 20, 21:25 UTC2h 35m
2026-07-20 LRC609 SAL → SJO Jul 20, 16:45 UTCJul 20, 17:15 UTC30m
2026-07-20 TAI309 MIA → SAL Jul 20, 11:35 UTCJul 20, 13:40 UTC2h 5m
2026-07-20 TAI308 SAL → MIA Jul 20, 04:40 UTCJul 20, 06:25 UTC1h 45m
2026-07-19 TAI325 - Jul 19, 21:40 UTCJul 20, 01:50 UTC4h 10m
2026-07-19 TAI324 SAL → YYZ Jul 19, 14:35 UTCJul 19, 19:00 UTC4h 25m
2026-07-14 TAI322 - Jul 14, 21:30 UTCJul 14, 21:50 UTC20m
2026-07-14 TAI322 - Jul 14, 18:55 UTCJul 14, 19:10 UTC15m
2026-07-14 TAI323 - Jul 14, 14:15 UTCJul 14, 17:35 UTC3h 20m
2026-07-14 TAI579 - Jul 14, 11:30 UTCJul 14, 11:45 UTC15m
2026-07-14 AVA164 BOG → GUA Jul 14, 04:35 UTCJul 14, 07:20 UTC2h 45m
2026-07-13 AVA9237 BOG → BOG Jul 13, 23:10 UTCJul 14, 02:45 UTC3h 35m
2026-07-13 AVA8528 - Jul 13, 18:15 UTCJul 13, 18:30 UTC15m
2026-07-13 AVA8512 - Jul 13, 15:00 UTCJul 13, 15:30 UTC30m

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 N743AV page for operator, model, and routing details .

Mode-S A9FDC3 frequently asked

What is Mode-S code A9FDC3?
A9FDC3 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N743AV.
Where is Mode-S A9FDC3 registered?
Mode-S code A9FDC3 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 A9FDC3 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A9FDC3, octal 52376703, decimal 11,140,547.
What flights does A9FDC3 operate?
Mode-S A9FDC3 has broadcast 20 distinct callsigns, including TAI528, AVA9491, TAI529, LRC661, LRC660.