Apparatus

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sensors Mode-S transponder

0AC3D1

ICAO 24-bit transponder address · allocated to Costa Rica

Currently assigned to HK-5273 · AIRBUS A-320

Hex
0AC3D1
Octal
02541721
Decimal
705,489
Country
CR
Tail
HK-5273
Type
A320
Broadcasting now · callsign AVA8520 · 32,025 ft
Flights observed
367
Distinct callsigns
20
Country
CR
Last broadcast
Jul 26, 20:00 UTC

Current position

0AC3D1 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 0AC3D1 falls within the block assigned to Costa Rica (CR) by ICAO Annex 10, Volume III. Every aircraft registered in Costa Rica 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
AVA234 Avianca - Aerovias Nacionales de Colombia, S.A. 7 2026-07-20
AVA230 Avianca - Aerovias Nacionales de Colombia, S.A. 6 2026-07-20
AVA235 - 5 2026-07-20
AVA228 Avianca - Aerovias Nacionales de Colombia, S.A. 5 2026-07-23
AVA190 - 5 2026-07-17
AVA045 - 5 2026-07-18
AVA036 Avianca - Aerovias Nacionales de Colombia, S.A. 5 2026-06-08
AVA9803 Avianca - Aerovias Nacionales de Colombia, S.A. 4 2026-05-29
AVA9570 Avianca - Aerovias Nacionales de Colombia, S.A. 4 2026-05-28
AVA9377 - 4 2026-07-01
AVA9320 Avianca - Aerovias Nacionales de Colombia, S.A. 4 2026-05-25
AVA8523 Avianca - Aerovias Nacionales de Colombia, S.A. 4 2026-07-19
AVA231 Avianca - Aerovias Nacionales de Colombia, S.A. 4 2026-07-20
AVA229 Avianca - Aerovias Nacionales de Colombia, S.A. 4 2026-07-24
AVA186 Avianca - Aerovias Nacionales de Colombia, S.A. 4 2026-05-02
AVA145 - 4 2026-07-12
AVA144 - 4 2026-07-12
AVA037 Avianca - Aerovias Nacionales de Colombia, S.A. 4 2026-06-08
AVA9780 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-04-29
AVA9376 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-06-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AVA252 BOG → PUJ Jul 26, 18:35 UTCJul 26, 20:00 UTC1h 25m
2026-07-26 AVA058 BOG → PTY Jul 26, 12:55 UTCJul 26, 16:50 UTC3h 55m
2026-07-26 AVA074 LIM → BOG Jul 26, 10:15 UTCJul 26, 10:35 UTC20m
2026-07-26 AVA075 BOG → LIM Jul 26, 04:00 UTCJul 26, 04:15 UTC15m
2026-07-25 AVA136 BOG → PUJ Jul 25, 19:50 UTCJul 26, 01:45 UTC5h 55m
2026-07-25 AVA8427 MDE → BOG Jul 25, 17:10 UTCJul 25, 17:35 UTC25m
2026-07-25 AVA9354 BOG → MDE Jul 25, 15:30 UTCJul 25, 15:45 UTC15m
2026-07-25 AVA9785 CTG → BOG Jul 25, 09:50 UTCJul 25, 10:30 UTC40m
2026-07-25 AVA9372 MDE → CTG Jul 25, 03:25 UTCJul 25, 04:10 UTC45m
2026-07-25 AVA9304 BOG → MDE Jul 25, 01:50 UTCJul 25, 02:05 UTC15m
2026-07-24 AVA195 TPA → BOG Jul 24, 19:55 UTCJul 24, 23:45 UTC3h 50m
2026-07-24 AVA194 BOG → TPA Jul 24, 14:35 UTCJul 24, 18:10 UTC3h 35m
2026-07-24 AVA9531 BAQ → BOG Jul 24, 11:25 UTCJul 24, 12:25 UTC1h 0m
2026-07-24 AVA229 BOS → BOG Jul 24, 02:35 UTCJul 24, 05:05 UTC2h 30m
2026-07-23 AVA228 BOG → CDG Jul 23, 21:45 UTCJul 24, 00:10 UTC2h 25m
2026-07-23 AVA229 BOS → BOG Jul 23, 02:40 UTCJul 23, 05:00 UTC2h 20m
2026-07-22 AVA228 BOG → CDG Jul 22, 21:50 UTCJul 23, 00:20 UTC2h 30m
2026-07-22 AVA003 - Jul 22, 17:40 UTCJul 22, 19:50 UTC2h 10m
2026-07-22 AVA002 - Jul 22, 13:00 UTCJul 22, 15:20 UTC2h 20m
2026-07-22 AVA229 - Jul 22, 02:35 UTCJul 22, 04:55 UTC2h 20m
2026-07-21 AVA228 - Jul 21, 23:55 UTCJul 22, 00:30 UTC35m
2026-07-21 AVA228 - Jul 21, 21:55 UTCJul 21, 22:20 UTC25m
2026-07-21 AVA8586 MDE → BAQ Jul 21, 16:45 UTCJul 21, 17:25 UTC40m
2026-07-21 AVA9270 BOG → MDE Jul 21, 14:50 UTCJul 21, 15:05 UTC15m
2026-07-21 AVA9725 - Jul 21, 13:15 UTCJul 21, 13:30 UTC15m
2026-07-20 AVA231 SJU → MDE Jul 20, 21:00 UTCJul 20, 23:15 UTC2h 15m
2026-07-20 AVA230 MDE → SJU Jul 20, 18:35 UTCJul 20, 18:55 UTC20m
2026-07-20 AVA230 MDE → SJU Jul 20, 16:45 UTCJul 20, 18:05 UTC1h 20m
2026-07-20 AVA235 - Jul 20, 11:20 UTCJul 20, 15:00 UTC3h 40m
2026-07-20 AVA234 MDE → MEX Jul 20, 04:00 UTCJul 20, 07:55 UTC3h 55m
2026-07-20 AVA9384 - Jul 20, 01:50 UTCJul 20, 02:00 UTC10m
2026-07-20 AVA9471 MDE → CLO Jul 20, 00:05 UTCJul 20, 00:15 UTC10m
2026-07-19 AVA9306 BOG → MDE Jul 19, 22:10 UTCJul 19, 22:25 UTC15m
2026-07-19 AVA9447 CUC → BOG Jul 19, 18:15 UTCJul 19, 20:50 UTC2h 35m
2026-07-19 AVA8522 - Jul 19, 16:40 UTCJul 19, 17:00 UTC20m
2026-07-19 AVA8523 BOG → CLO Jul 19, 14:35 UTCJul 19, 14:50 UTC15m
2026-07-19 AVA8447 BGA → BOG Jul 19, 12:20 UTCJul 19, 12:35 UTC15m
2026-07-19 AVA9480 - Jul 19, 02:30 UTCJul 19, 02:45 UTC15m
2026-07-18 AVR5200 BOG → BOG Jul 18, 18:00 UTCJul 18, 21:00 UTC3h 0m
2026-07-18 AVA045 MEX → BOG Jul 18, 10:15 UTCJul 18, 14:05 UTC3h 50m
2026-07-18 AVA234 MDE → MEX Jul 18, 05:15 UTCJul 18, 08:00 UTC2h 45m
2026-07-18 AVA234 MDE → MEX Jul 18, 04:05 UTCJul 18, 04:15 UTC10m
2026-07-17 AVA191 SJO → BOG Jul 17, 23:30 UTCJul 18, 02:25 UTC2h 55m
2026-07-17 AVA190 - Jul 17, 21:10 UTCJul 17, 21:34 UTC25m
2026-07-17 AVA229 - Jul 17, 02:25 UTCJul 17, 13:05 UTC10h 40m
2026-07-16 AVA228 - Jul 16, 22:49 UTCJul 17, 00:35 UTC1h 45m
2026-07-15 AVA9789 BOG → BOG Jul 15, 20:45 UTCJul 15, 23:50 UTC3h 5m
2026-07-15 AVA8413 - Jul 15, 19:00 UTCJul 15, 19:15 UTC15m
2026-07-15 AVA8590 - Jul 15, 16:00 UTCJul 15, 16:15 UTC15m
2026-07-15 AVA8419 - Jul 15, 12:25 UTCJul 15, 12:40 UTC15m

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 HK-5273 page for operator, model, and routing details .

Mode-S 0AC3D1 frequently asked

What is Mode-S code 0AC3D1?
0AC3D1 is an ICAO 24-bit transponder address. Allocated to Costa Rica. Assigned to HK-5273.
Where is Mode-S 0AC3D1 registered?
Mode-S code 0AC3D1 is allocated to Costa Rica (CR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 0AC3D1 broadcasting right now?
Yes. Mode-S 0AC3D1 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 0AC3D1, octal 02541721, decimal 705,489.
What flights does 0AC3D1 operate?
Mode-S 0AC3D1 has broadcast 20 distinct callsigns, including AVA234, AVA230, AVA235, AVA228, AVA190.