Apparatus

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sensors Mode-S transponder

0ACAC6

ICAO 24-bit transponder address · allocated to Costa Rica

Currently assigned to HK-5421 · AIRBUS A-320

Hex
0ACAC6
Octal
02545306
Decimal
707,270
Country
CR
Tail
HK-5421
Type
A320
No current signal · last broadcast Jul 26, 19:20 UTC
Flights observed
361
Distinct callsigns
20
Country
CR
Last broadcast
Jul 26, 19:20 UTC

Last known position

Most recent position reported by Mode-S 0ACAC6.

Country allocation

The ICAO 24-bit address 0ACAC6 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
AVA167 - 7 2026-07-14
AVA042 Avianca - Aerovias Nacionales de Colombia, S.A. 7 2026-05-05
AVA235 - 6 2026-07-02
AVA234 - 5 2026-07-01
AVA231 - 5 2026-07-04
AVA208 - 5 2026-07-10
AVA190 Avianca - Aerovias Nacionales de Colombia, S.A. 5 2026-04-27
AVA043 Avianca - Aerovias Nacionales de Colombia, S.A. 5 2026-05-05
AVA9570 - 4 2026-07-18
AVA9376 Avianca - Aerovias Nacionales de Colombia, S.A. 4 2026-07-26
AVA9348 - 4 2026-06-29
AVA230 - 4 2026-07-04
AVA166 - 4 2026-07-14
AVA119 - 4 2026-06-29
AVA023 - 4 2026-06-23
AVA9803 - 3 2026-07-18
AVA9780 - 3 2026-06-28
AVA9762 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-07-22
AVA9554 - 3 2026-07-06
AVA9459 - 3 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AVA9376 BOG → ADZ Jul 26, 19:05 UTCJul 26, 19:15 UTC10m
2026-07-26 AVA9376 BOG → ADZ Jul 26, 17:30 UTCJul 26, 18:05 UTC35m
2026-07-26 AVA8418 CLO → BOG Jul 26, 13:40 UTCJul 26, 14:00 UTC20m
2026-07-26 AVA8485 SMR → BOG Jul 26, 02:00 UTCJul 26, 02:55 UTC55m
2026-07-25 AVA8478 CLO → SMR Jul 25, 23:50 UTCJul 26, 00:45 UTC55m
2026-07-25 AVA9527 BOG → CLO Jul 25, 22:00 UTCJul 25, 22:20 UTC20m
2026-07-25 AVR5204 BOG → IPI Jul 25, 20:15 UTCJul 25, 20:45 UTC30m
2026-07-25 AVR5246 BOG → PEI Jul 25, 18:45 UTCJul 25, 19:10 UTC25m
2026-07-25 AVA9463 MDE → BOG Jul 25, 17:00 UTCJul 25, 17:15 UTC15m
2026-07-25 AVA9260 BOG → MDE Jul 25, 15:05 UTCJul 25, 15:20 UTC15m
2026-07-25 AVA9443 CUC → BOG Jul 25, 11:45 UTCJul 25, 11:55 UTC10m
2026-07-25 AVA8403 MDE → PEI Jul 25, 02:40 UTCJul 25, 03:00 UTC20m
2026-07-25 AVA8441 ADZ → MDE Jul 25, 00:55 UTCJul 25, 01:10 UTC15m
2026-07-24 AVA8441 ADZ → MDE Jul 24, 23:50 UTCJul 25, 00:00 UTC10m
2026-07-24 AVA8440 MDE → ADZ Jul 24, 22:45 UTCJul 24, 22:55 UTC10m
2026-07-24 AVA220 MDE → PUJ Jul 24, 13:35 UTCJul 24, 19:00 UTC5h 25m
2026-07-24 AVA8404 CLO → BOG Jul 24, 11:30 UTCJul 24, 11:40 UTC10m
2026-07-23 AVA8404 CLO → BOG Jul 23, 11:35 UTCJul 23, 11:45 UTC10m
2026-07-23 AVA9817 BOG → PEI Jul 23, 03:50 UTCJul 23, 04:15 UTC25m
2026-07-22 AVA8491 - Jul 22, 22:45 UTCJul 22, 23:45 UTC1h 0m
2026-07-22 AVA9762 BOG → SMR Jul 22, 20:35 UTCJul 22, 21:30 UTC55m
2026-07-22 AVA8598 PSO → BOG Jul 22, 18:55 UTCJul 22, 19:15 UTC20m
2026-07-22 AVA8487 SMR → BOG Jul 22, 13:55 UTCJul 22, 14:55 UTC1h 0m
2026-07-22 AVA9720 BOG → SMR Jul 22, 11:40 UTCJul 22, 12:30 UTC50m
2026-07-22 AVA9513 BAQ → BOG Jul 22, 03:25 UTCJul 22, 04:25 UTC1h 0m
2026-07-22 AVA9796 BOG → BAQ Jul 22, 01:20 UTCJul 22, 02:15 UTC55m
2026-07-21 AVA8491 - Jul 21, 22:55 UTCJul 21, 23:55 UTC1h 0m
2026-07-21 AVA9762 BOG → SMR Jul 21, 20:50 UTCJul 21, 21:40 UTC50m
2026-07-21 AVA8561 - Jul 21, 18:50 UTCJul 21, 19:25 UTC35m
2026-07-21 AVA9782 BOG → ADZ Jul 21, 16:25 UTCJul 21, 16:35 UTC10m
2026-07-21 AVA9782 BOG → ADZ Jul 21, 14:55 UTCJul 21, 15:25 UTC30m
2026-07-21 AVA8419 BAQ → BOG Jul 21, 12:45 UTCJul 21, 13:45 UTC1h 0m
2026-07-21 AVA9534 - Jul 21, 03:15 UTCJul 21, 04:15 UTC1h 0m
2026-07-21 AVA9325 MDE → BOG Jul 21, 01:25 UTCJul 21, 01:50 UTC25m
2026-07-20 AVA9306 BOG → MDE Jul 20, 22:35 UTCJul 20, 22:45 UTC10m
2026-07-20 AVA8598 PSO → BOG Jul 20, 20:30 UTCJul 20, 20:55 UTC25m
2026-07-20 AVA9401 BOG → PSO Jul 20, 13:55 UTCJul 20, 14:15 UTC20m
2026-07-20 AVA8537 CTG → BOG Jul 20, 11:25 UTCJul 20, 12:30 UTC1h 5m
2026-07-20 AVA9372 MDE → CTG Jul 20, 03:25 UTCJul 20, 04:05 UTC40m
2026-07-20 AVA9304 - Jul 20, 01:45 UTCJul 20, 02:00 UTC15m
2026-07-19 AVA195 - Jul 19, 19:55 UTCJul 19, 23:30 UTC3h 35m
2026-07-19 AVA194 BOG → TPA Jul 19, 14:20 UTCJul 19, 17:55 UTC3h 35m
2026-07-19 AVA8537 CTG → BOG Jul 19, 11:15 UTCJul 19, 12:20 UTC1h 5m
2026-07-19 AVA9372 MDE → CTG Jul 19, 03:25 UTCJul 19, 04:10 UTC45m
2026-07-19 AVA9304 - Jul 19, 01:35 UTCJul 19, 01:50 UTC15m
2026-07-18 AVA9803 - Jul 18, 23:40 UTCJul 19, 00:10 UTC30m
2026-07-18 AVA9803 - Jul 18, 22:35 UTCJul 18, 22:45 UTC10m
2026-07-18 AVA9570 - Jul 18, 21:15 UTCJul 18, 21:20 UTC5m
2026-07-18 AVA9570 - Jul 18, 19:40 UTCJul 18, 20:10 UTC30m
2026-07-18 AVR4892 - Jul 18, 17:30 UTCJul 18, 17:45 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-5421 page for operator, model, and routing details .

Mode-S 0ACAC6 frequently asked

What is Mode-S code 0ACAC6?
0ACAC6 is an ICAO 24-bit transponder address. Allocated to Costa Rica. Assigned to HK-5421.
Where is Mode-S 0ACAC6 registered?
Mode-S code 0ACAC6 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 0ACAC6 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 19:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 0ACAC6, octal 02545306, decimal 707,270.
What flights does 0ACAC6 operate?
Mode-S 0ACAC6 has broadcast 20 distinct callsigns, including AVA167, AVA042, AVA235, AVA234, AVA231.