Apparatus

Try JFK, AAL1290, BAW, or N225AN.

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 2h ago
Flights observed
300
Distinct callsigns
20
Country
CR
Last broadcast
2h ago

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
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
AVA9780 - 3 2026-06-28
AVA9554 - 3 2026-07-06
AVA9459 - 3 2026-07-09
AVA9245 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-06-09
AVA251 - 3 2026-07-14
AVA250 - 3 2026-07-13
AVA153 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-05-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AVA073 - Jul 14, 20:20 UTCJul 14, 22:40 UTC2h 20m
2026-07-14 AVA072 - Jul 14, 14:05 UTCJul 14, 18:00 UTC3h 55m
2026-07-14 AVA166 - Jul 14, 04:00 UTCJul 14, 10:45 UTC6h 45m
2026-07-14 AVA167 - Jul 14, 03:05 UTCJul 14, 03:15 UTC10m
2026-07-14 AVA251 - Jul 14, 01:00 UTCJul 14, 01:15 UTC15m
2026-07-13 AVA251 - Jul 13, 23:50 UTCJul 14, 00:05 UTC15m
2026-07-13 AVA250 - Jul 13, 20:55 UTCJul 13, 21:45 UTC50m
2026-07-13 AVA250 - Jul 13, 19:50 UTCJul 13, 19:55 UTC5m
2026-07-13 AVA067 - Jul 13, 15:00 UTCJul 13, 18:15 UTC3h 15m
2026-07-12 AVA066 BOG → FLL Jul 12, 20:05 UTCJul 12, 23:30 UTC3h 25m
2026-07-12 AVA9726 - Jul 12, 18:10 UTCJul 12, 18:35 UTC25m
2026-07-12 AVA8567 - Jul 12, 16:05 UTCJul 12, 16:15 UTC10m
2026-07-12 AVA8487 - Jul 12, 14:30 UTCJul 12, 14:45 UTC15m
2026-07-12 AVA9720 - Jul 12, 11:20 UTCJul 12, 11:40 UTC20m
2026-07-12 AVA9568 - Jul 12, 02:40 UTCJul 12, 03:01 UTC20m
2026-07-12 AVA8463 - Jul 12, 00:45 UTCJul 12, 00:55 UTC10m
2026-07-11 AVA9301 - Jul 11, 23:00 UTCJul 11, 23:20 UTC20m
2026-07-11 AVA9328 - Jul 11, 21:10 UTCJul 11, 21:25 UTC15m
2026-07-11 AVA8413 - Jul 11, 19:00 UTCJul 11, 19:15 UTC15m
2026-07-11 AVA8590 - Jul 11, 15:55 UTCJul 11, 16:15 UTC20m
2026-07-11 AVA8577 - Jul 11, 00:15 UTCJul 11, 00:25 UTC10m
2026-07-10 AVA209 - Jul 10, 17:40 UTCJul 10, 18:30 UTC50m
2026-07-10 AVA208 - Jul 10, 15:05 UTCJul 10, 15:20 UTC15m
2026-07-10 AVA208 - Jul 10, 14:00 UTCJul 10, 14:15 UTC15m
2026-07-10 AVR5232 - Jul 10, 01:50 UTCJul 10, 04:30 UTC2h 40m
2026-07-09 AVA9842 - Jul 9, 23:00 UTCJul 9, 23:15 UTC15m
2026-07-09 AVA9841 - Jul 9, 21:25 UTCJul 9, 21:40 UTC15m
2026-07-09 AVA9711 - Jul 9, 19:05 UTCJul 9, 19:25 UTC20m
2026-07-09 AVA9710 - Jul 9, 17:05 UTCJul 9, 17:15 UTC10m
2026-07-09 AVA9712 - Jul 9, 15:25 UTCJul 9, 15:40 UTC15m
2026-07-09 AVA8553 - Jul 9, 13:25 UTCJul 9, 13:35 UTC10m
2026-07-09 AVA9459 - Jul 9, 11:30 UTCJul 9, 11:45 UTC15m
2026-07-07 AVA8457 BOG → BOG Jul 7, 20:55 UTCJul 8, 00:05 UTC3h 10m
2026-07-07 AVA8413 - Jul 7, 19:15 UTCJul 7, 19:35 UTC20m
2026-07-07 AVA8590 - Jul 7, 16:15 UTCJul 7, 16:30 UTC15m
2026-07-07 AVA9840 - Jul 7, 14:40 UTCJul 7, 14:55 UTC15m
2026-07-06 AVA9554 - Jul 6, 23:30 UTCJul 6, 23:45 UTC15m
2026-07-06 AVA8591 - Jul 6, 21:35 UTCJul 6, 21:50 UTC15m
2026-07-06 AVA8528 - Jul 6, 18:20 UTCJul 6, 18:35 UTC15m
2026-07-06 AVA9402 - Jul 6, 16:20 UTCJul 6, 16:25 UTC5m
2026-07-06 AVA9513 - Jul 6, 04:40 UTCJul 6, 04:55 UTC15m
2026-07-06 AVA9796 - Jul 6, 01:30 UTCJul 6, 01:45 UTC15m
2026-07-05 AVA9789 MQU → BOG Jul 5, 23:55 UTCJul 6, 00:10 UTC15m
2026-07-05 AVA005 - Jul 5, 12:25 UTCJul 5, 12:45 UTC20m
2026-07-04 AVA231 - Jul 4, 20:55 UTCJul 5, 09:50 UTC12h 55m
2026-07-04 AVA230 - Jul 4, 10:55 UTCJul 4, 19:00 UTC8h 5m
2026-07-04 AVA032 - Jul 4, 07:50 UTCJul 4, 08:20 UTC30m
2026-07-02 AVA231 - Jul 2, 20:50 UTCJul 2, 22:10 UTC1h 20m
2026-07-02 AVA230 - Jul 2, 18:45 UTCJul 2, 18:55 UTC10m
2026-07-02 AVA235 - Jul 2, 11:05 UTCJul 2, 18:05 UTC7h 0m

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 2h ago.
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.