Apparatus

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sensors Mode-S transponder

0ACABF

ICAO 24-bit transponder address · allocated to Costa Rica

Currently assigned to HK-5423 · AIRBUS A-320

Hex
0ACABF
Octal
02545277
Decimal
707,263
Country
CR
Tail
HK-5423
Type
A320
No current signal · last broadcast 2h ago
Flights observed
317
Distinct callsigns
20
Country
CR
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 0ACABF.

Country allocation

The ICAO 24-bit address 0ACABF 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
AVA195 - 7 2026-07-13
AVA004 - 7 2026-06-24
AVA194 - 6 2026-07-12
AVA9491 - 4 2026-06-15
AVA075 - 4 2026-07-13
AVA043 Avianca - Aerovias Nacionales de Colombia, S.A. 4 2026-06-06
AVA042 Avianca - Aerovias Nacionales de Colombia, S.A. 4 2026-06-05
AVA005 - 4 2026-07-08
AVA9832 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-05-17
AVA9807 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-05-17
AVA8576 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-07-06
AVA8509 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-04-26
AVA8441 - 3 2026-06-17
AVA8435 - 3 2026-07-12
AVA233 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-05-11
AVA171 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-05-30
AVA149 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-04-16
AVA148 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-04-16
AVA129 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-06-11
AVA049 - 3 2026-07-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AVA8463 - Jul 14, 00:45 UTCJul 14, 00:55 UTC10m
2026-07-13 AVA029 MCO → BOG Jul 13, 19:25 UTCJul 13, 23:00 UTC3h 35m
2026-07-13 AVA028 BOG → MCO Jul 13, 13:35 UTCJul 13, 17:10 UTC3h 35m
2026-07-13 AVA075 - Jul 13, 06:01 UTCJul 13, 06:15 UTC15m
2026-07-13 AVA075 - Jul 13, 04:00 UTCJul 13, 04:15 UTC15m
2026-07-13 AVA195 - Jul 13, 00:15 UTCJul 13, 00:30 UTC15m
2026-07-12 AVA195 - Jul 12, 20:50 UTCJul 12, 21:35 UTC45m
2026-07-12 AVA194 - Jul 12, 17:15 UTCJul 12, 18:10 UTC55m
2026-07-12 AVA194 - Jul 12, 14:30 UTCJul 12, 14:45 UTC15m
2026-07-12 AVA8435 - Jul 12, 12:30 UTCJul 12, 12:50 UTC20m
2026-07-12 AVA9252 - Jul 12, 10:50 UTCJul 12, 11:05 UTC15m
2026-07-11 AVA073 - Jul 11, 20:15 UTCJul 12, 00:15 UTC4h 0m
2026-07-11 AVA072 BOG → MEX Jul 11, 14:05 UTCJul 11, 18:05 UTC4h 0m
2026-07-11 AVA9541 - Jul 11, 11:20 UTCJul 11, 11:50 UTC30m
2026-07-10 AVA057 - Jul 10, 21:10 UTCJul 11, 00:35 UTC3h 25m
2026-07-10 AVA8567 - Jul 10, 16:40 UTCJul 10, 16:55 UTC15m
2026-07-10 AVA9521 - Jul 10, 14:35 UTCJul 10, 14:45 UTC10m
2026-07-10 AVA8524 - Jul 10, 11:35 UTCJul 10, 11:50 UTC15m
2026-07-10 AVA9513 - Jul 10, 04:10 UTCJul 10, 04:25 UTC15m
2026-07-10 AVA9796 - Jul 10, 01:15 UTCJul 10, 01:25 UTC10m
2026-07-09 AVA195 - Jul 9, 23:10 UTCJul 9, 23:25 UTC15m
2026-07-09 AVA195 - Jul 9, 19:55 UTCJul 9, 20:45 UTC50m
2026-07-09 AVA194 BOG → TPA Jul 9, 14:30 UTCJul 9, 18:10 UTC3h 40m
2026-07-09 AVA8447 - Jul 9, 12:20 UTCJul 9, 12:40 UTC20m
2026-07-09 AVA9472 - Jul 9, 00:00 UTCJul 9, 00:10 UTC10m
2026-07-08 AVA076 - Jul 8, 22:15 UTCJul 8, 22:20 UTC5m
2026-07-08 AVA005 - Jul 8, 12:25 UTCJul 8, 12:50 UTC25m
2026-07-08 AVA008 - Jul 8, 06:55 UTCJul 8, 07:30 UTC35m
2026-07-07 AVR5226 - Jul 7, 22:50 UTCJul 7, 23:10 UTC20m
2026-07-07 AVA9448 BOG → BOG Jul 7, 18:50 UTCJul 7, 21:35 UTC2h 45m
2026-07-07 AVA8522 - Jul 7, 17:10 UTCJul 7, 17:30 UTC20m
2026-07-07 AVA8523 - Jul 7, 15:05 UTCJul 7, 15:25 UTC20m
2026-07-07 AVA8459 - Jul 7, 13:30 UTCJul 7, 13:50 UTC20m
2026-07-06 AVA8576 BOG → VUP Jul 6, 21:20 UTCJul 7, 00:30 UTC3h 10m
2026-07-06 AVA050 - Jul 6, 19:10 UTCJul 6, 19:30 UTC20m
2026-07-06 AVA049 - Jul 6, 07:15 UTCJul 6, 15:05 UTC7h 50m
2026-07-05 AVA051 - Jul 5, 17:40 UTCJul 6, 01:10 UTC7h 30m
2026-07-05 AVA009 - Jul 5, 07:05 UTCJul 5, 15:10 UTC8h 5m
2026-07-04 AVA035 - Jul 4, 20:35 UTCJul 5, 04:15 UTC7h 40m
2026-07-04 AVA034 CTG → MIA Jul 4, 17:35 UTCJul 4, 19:15 UTC1h 40m
2026-07-03 AVA145 - Jul 3, 06:00 UTCJul 3, 07:45 UTC1h 45m
2026-07-02 AVA144 MCO → JFK Jul 2, 17:50 UTCJul 3, 03:55 UTC10h 5m
2026-07-02 AVA145 JFK → MCO Jul 2, 05:35 UTCJul 2, 15:50 UTC10h 15m
2026-07-01 AVA144 MCO → JFK Jul 1, 17:30 UTCJul 2, 03:20 UTC9h 50m
2026-07-01 AVA202 MDE → MCO Jul 1, 14:20 UTCJul 1, 15:15 UTC55m
2026-06-28 AVA195 - Jun 28, 19:59 UTCJun 28, 20:54 UTC55m
2026-06-28 AVA194 BOG → TPA Jun 28, 17:19 UTCJun 28, 18:14 UTC55m
2026-06-26 AVA9347 - Jun 26, 17:15 UTCJun 26, 17:25 UTC10m
2026-06-26 AVA9348 - Jun 26, 15:20 UTCJun 26, 15:25 UTC5m
2026-06-25 AVA9377 - Jun 25, 20:14 UTCJun 25, 20:25 UTC10m

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-5423 page for operator, model, and routing details .

Mode-S 0ACABF frequently asked

What is Mode-S code 0ACABF?
0ACABF is an ICAO 24-bit transponder address. Allocated to Costa Rica. Assigned to HK-5423.
Where is Mode-S 0ACABF registered?
Mode-S code 0ACABF 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 0ACABF broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 0ACABF, octal 02545277, decimal 707,263.
What flights does 0ACABF operate?
Mode-S 0ACABF has broadcast 20 distinct callsigns, including AVA195, AVA004, AVA194, AVA9491, AVA075.