Apparatus

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sensors Mode-S transponder

0ACAC0

ICAO 24-bit transponder address · allocated to Costa Rica

Currently assigned to HK-5422 · AIRBUS A-320

Hex
0ACAC0
Octal
02545300
Decimal
707,264
Country
CR
Tail
HK-5422
Type
A320
No current signal · last broadcast 8h ago
Flights observed
172
Distinct callsigns
20
Country
CR
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S 0ACAC0.

Country allocation

The ICAO 24-bit address 0ACAC0 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
AVA045 Avianca - Aerovias Nacionales de Colombia, S.A. 4 2026-05-26
AVA023 Avianca - Aerovias Nacionales de Colombia, S.A. 4 2026-05-06
AVR4849 Avianca Express 3 2026-05-17
AVR4848 - 3 2026-05-17
AVA9803 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-04-20
AVA9376 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-05-11
AVA8576 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-05-16
AVA8429 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-05-18
AVA129 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-05-27
AVA128 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-05-27
AVA075 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-04-20
AVA074 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-04-20
AVA061 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-05-18
AVA056 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-05-18
AVR5227 - 2 2026-04-27
AVR4811 Avianca Express 2 2026-05-17
AVA9779 Avianca - Aerovias Nacionales de Colombia, S.A. 2 2026-04-17
AVA9776 Avianca - Aerovias Nacionales de Colombia, S.A. 2 2026-04-16
AVA9774 Avianca - Aerovias Nacionales de Colombia, S.A. 2 2026-05-19
AVA9570 Avianca - Aerovias Nacionales de Colombia, S.A. 2 2026-04-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 AVA9304 BOG → MDE May 30, 01:25 UTCMay 30, 01:45 UTC20m
2026-05-29 AVA9789 CTG → BOG May 29, 23:55 UTCMay 30, 00:15 UTC20m
2026-05-29 AVA9758 BOG → CTG May 29, 20:45 UTCMay 29, 21:00 UTC15m
2026-05-29 AVA8413 RCH → BOG May 29, 19:05 UTCMay 29, 19:20 UTC15m
2026-05-29 AVA8590 BOG → RCH May 29, 15:50 UTCMay 29, 16:05 UTC15m
2026-05-29 AVA9236 CLO → BOG May 29, 03:25 UTCMay 29, 03:40 UTC15m
2026-05-29 AVA9215 BOG → CLO May 29, 01:20 UTCMay 29, 01:40 UTC20m
2026-05-28 AVA9220 CLO → BOG May 28, 23:35 UTCMay 28, 23:50 UTC15m
2026-05-28 AVA9545 CTG → BOG May 28, 18:35 UTCMay 28, 18:45 UTC10m
2026-05-28 AVA8522 CLO → BOG May 28, 16:40 UTCMay 28, 16:55 UTC15m
2026-05-28 AVA8523 BOG → CLO May 28, 14:30 UTCMay 28, 14:40 UTC10m
2026-05-28 AVA8459 MTR → BOG May 28, 12:50 UTCMay 28, 13:05 UTC15m
2026-05-28 AVA8506 BOG → MTR May 28, 10:15 UTCMay 28, 10:25 UTC10m
2026-05-28 AVA8497 MTR → BOG May 28, 03:50 UTCMay 28, 04:10 UTC20m
2026-05-28 AVA8532 BOG → MTR May 28, 01:30 UTCMay 28, 01:40 UTC10m
2026-05-27 AVA129 PUJ → BOG May 27, 19:05 UTCMay 27, 19:30 UTC25m
2026-05-27 AVA128 BOG → PUJ May 27, 14:05 UTCMay 27, 18:10 UTC4h 5m
2026-05-27 AVA128 BOG → PUJ May 27, 12:55 UTCMay 27, 13:10 UTC15m
2026-05-27 AVA125 BOG → UIO May 27, 03:34 UTCMay 27, 11:00 UTC7h 25m
2026-05-26 AVA117 BOG → CNF May 26, 16:59 UTCMay 26, 20:20 UTC3h 20m
2026-05-26 AVA045 MEX → BOG May 26, 14:55 UTCMay 26, 15:05 UTC10m
2026-05-26 AVA045 MEX → BOG May 26, 11:09 UTCMay 26, 13:34 UTC2h 25m
2026-05-25 AVA234 MDE → MEX May 25, 23:10 UTCMay 26, 07:29 UTC8h 20m
2026-05-25 AVA043 JFK → MDE May 25, 11:20 UTCMay 25, 21:30 UTC10h 9m
2026-05-25 AVA042 MDE → JFK May 25, 06:25 UTCMay 25, 08:50 UTC2h 25m
2026-05-23 AVA9347 ADZ → MDE May 23, 14:55 UTCMay 23, 15:05 UTC10m
2026-05-22 - - May 22, 14:55 UTCMay 22, 20:15 UTC5h 20m
2026-05-20 AVA9242 BOG → MDE May 20, 03:10 UTCMay 20, 03:25 UTC15m
2026-05-19 AVA8434 PEI → BOG May 19, 21:10 UTCMay 20, 00:40 UTC3h 30m
2026-05-19 AVA9228 CLO → BOG May 19, 19:35 UTCMay 19, 19:50 UTC15m
2026-05-19 AVA8411 BOG → CLO May 19, 17:35 UTCMay 19, 17:45 UTC10m
2026-05-19 AVA9445 ADZ → BOG May 19, 15:40 UTCMay 19, 16:00 UTC20m
2026-05-19 AVA9774 BOG → SMR May 19, 13:05 UTCMay 19, 13:15 UTC10m
2026-05-19 AVA9774 BOG → SMR May 19, 11:30 UTCMay 19, 11:45 UTC15m
2026-05-19 AVA048 LIM → BOG May 19, 07:10 UTCMay 19, 09:25 UTC2h 15m
2026-05-19 AVA051 BOG → LIM May 19, 00:45 UTCMay 19, 01:30 UTC45m
2026-05-18 AVA051 BOG → LIM May 18, 23:20 UTCMay 18, 23:35 UTC15m
2026-05-18 AVA061 PTY → BOG May 18, 21:25 UTCMay 18, 21:45 UTC20m
2026-05-18 AVA056 BOG → PTY May 18, 18:15 UTCMay 18, 18:25 UTC10m
2026-05-18 AVA059 PTY → BOG May 18, 16:15 UTCMay 18, 16:35 UTC20m
2026-05-18 AVA058 BOG → PTY May 18, 12:55 UTCMay 18, 13:15 UTC20m
2026-05-18 AVA123 CCS → BOG May 18, 04:30 UTCMay 18, 09:25 UTC4h 55m
2026-05-18 AVA8429 RCH → BOG May 18, 01:55 UTCMay 18, 02:25 UTC30m
2026-05-17 AVA8428 BOG → RCH May 17, 23:00 UTCMay 17, 23:15 UTC15m
2026-05-17 AVR4848 - May 17, 21:20 UTCMay 17, 21:30 UTC10m
2026-05-17 AVR4849 BOG → IBE May 17, 19:50 UTCMay 17, 20:01 UTC10m
2026-05-17 AVR4811 IPI → BOG May 17, 15:01 UTCMay 17, 18:05 UTC3h 5m
2026-05-17 AVA9531 BAQ → BOG May 17, 12:10 UTCMay 17, 12:20 UTC10m
2026-05-17 AVA8446 BOG → BAQ May 17, 02:05 UTCMay 17, 02:25 UTC20m
2026-05-17 AVA8577 VUP → BOG May 17, 00:20 UTCMay 17, 00:35 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-5422 page for operator, model, and routing details .

Mode-S 0ACAC0 frequently asked

What is Mode-S code 0ACAC0?
0ACAC0 is an ICAO 24-bit transponder address. Allocated to Costa Rica. Assigned to HK-5422.
Where is Mode-S 0ACAC0 registered?
Mode-S code 0ACAC0 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 0ACAC0 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 0ACAC0, octal 02545300, decimal 707,264.
What flights does 0ACAC0 operate?
Mode-S 0ACAC0 has broadcast 20 distinct callsigns, including AVA045, AVA023, AVR4849, AVR4848, AVA9803.