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 8h ago
Flights observed
277
Distinct callsigns
20
Country
US
Last broadcast
8h ago

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
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
TAI397 Avianca El Salvador 3 2026-05-12
TAI310 Avianca El Salvador 3 2026-05-12
AVA9840 - 3 2026-07-11
AVA9492 - 3 2026-07-12
AVA9361 - 3 2026-07-09
AVA9348 - 3 2026-06-22
AVA119 - 3 2026-04-13
AVA023 - 3 2026-07-12
AVA004 - 3 2026-04-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
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
2026-07-13 AVA8407 - Jul 13, 13:30 UTCJul 13, 13:55 UTC25m
2026-07-13 AVA9541 BOG → BOG Jul 13, 02:10 UTCJul 13, 12:05 UTC9h 55m
2026-07-12 AVA9492 - Jul 12, 23:00 UTCJul 13, 00:40 UTC1h 40m
2026-07-12 AVA9491 - Jul 12, 21:25 UTCJul 12, 21:50 UTC25m
2026-07-12 AVA9491 - Jul 12, 20:20 UTCJul 12, 20:35 UTC15m
2026-07-12 AVA8595 - Jul 12, 14:30 UTCJul 12, 14:40 UTC10m
2026-07-12 AVA8594 - Jul 12, 11:40 UTCJul 12, 12:01 UTC20m
2026-07-12 AVA023 - Jul 12, 06:01 UTCJul 12, 10:05 UTC4h 5m
2026-07-11 AVA022 BOG → MEX Jul 11, 19:55 UTCJul 12, 00:25 UTC4h 30m
2026-07-11 AVR4892 - Jul 11, 15:30 UTCJul 11, 18:00 UTC2h 30m
2026-07-11 AVA9840 - Jul 11, 13:35 UTCJul 11, 13:50 UTC15m
2026-07-11 AVA9845 - Jul 11, 11:45 UTCJul 11, 12:00 UTC15m
2026-07-10 TAI384 - Jul 10, 14:35 UTCJul 11, 01:15 UTC10h 40m
2026-07-10 AVA9443 - Jul 10, 11:55 UTCJul 10, 12:15 UTC20m
2026-07-10 AVA9817 - Jul 10, 03:55 UTCJul 10, 04:10 UTC15m
2026-07-10 AVR4805 - Jul 10, 01:05 UTCJul 10, 01:15 UTC10m
2026-07-09 AVR4804 - Jul 9, 23:05 UTCJul 9, 23:20 UTC15m
2026-07-09 AVA9361 - Jul 9, 21:00 UTCJul 9, 21:15 UTC15m
2026-07-09 AVA9330 - Jul 9, 18:40 UTCJul 9, 18:55 UTC15m
2026-07-08 AVA9492 - Jul 8, 23:00 UTCJul 9, 00:35 UTC1h 35m
2026-07-08 AVA9491 - Jul 8, 21:15 UTCJul 8, 21:45 UTC30m
2026-06-24 AVA9614 - Jun 24, 17:40 UTCJun 24, 17:45 UTC5m
2026-06-23 AVA003 - Jun 23, 17:30 UTCJun 23, 17:54 UTC25m
2026-06-23 AVA002 - Jun 23, 14:59 UTCJun 23, 15:34 UTC35m
2026-06-22 AVA9348 - Jun 22, 14:49 UTCJun 22, 14:59 UTC10m
2026-06-20 AVA8497 - Jun 20, 03:49 UTCJun 20, 04:04 UTC15m
2026-06-19 AVA9361 - Jun 19, 20:29 UTCJun 19, 20:44 UTC15m
2026-06-19 AVA9330 BOG → MDE Jun 19, 18:34 UTCJun 19, 18:49 UTC15m
2026-06-19 AVA8522 CLO → BOG Jun 19, 16:55 UTCJun 19, 17:09 UTC15m
2026-06-19 AVA8523 - Jun 19, 14:59 UTCJun 19, 15:19 UTC20m
2026-06-19 AVA8459 - Jun 19, 10:14 UTCJun 19, 13:09 UTC2h 55m
2026-06-19 AVA9335 - Jun 19, 04:29 UTCJun 19, 04:54 UTC25m
2026-06-18 AVA8433 - Jun 18, 23:25 UTCJun 18, 23:35 UTC10m
2026-06-18 AVA9358 - Jun 18, 12:05 UTCJun 18, 12:15 UTC10m
2026-06-18 AVA9366 - Jun 18, 10:10 UTCJun 18, 10:25 UTC15m
2026-06-18 AVA9221 - Jun 18, 03:30 UTCJun 18, 03:45 UTC15m
2026-06-18 AVR5227 - Jun 18, 01:40 UTCJun 18, 01:55 UTC15m
2026-06-17 AVA9361 - Jun 17, 19:45 UTCJun 17, 19:55 UTC10m
2026-06-17 AVA8466 PEI → MDE Jun 17, 14:40 UTCJun 17, 14:50 UTC10m
2026-06-16 AVA9843 - Jun 16, 02:20 UTCJun 16, 02:34 UTC15m
2026-06-16 AVA8539 - Jun 16, 00:35 UTCJun 16, 00:50 UTC15m
2026-06-15 AVA9842 - Jun 15, 22:59 UTCJun 15, 23:25 UTC25m

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 8h ago.
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.