Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

0ACAC1

ICAO 24-bit transponder address · allocated to Costa Rica

Currently assigned to HK-5424 · AIRBUS A-320

Hex
0ACAC1
Octal
02545301
Decimal
707,265
Country
CR
Tail
HK-5424
Type
A320
No current signal · last broadcast Jul 26, 20:40 UTC
Flights observed
315
Distinct callsigns
20
Country
CR
Last broadcast
Jul 26, 20:40 UTC

Last known position

Most recent position reported by Mode-S 0ACAC1.

Country allocation

The ICAO 24-bit address 0ACAC1 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
AVA258 Avianca - Aerovias Nacionales de Colombia, S.A. 9 2026-07-22
AVA051 - 7 2026-07-17
AVA007 - 5 2026-05-20
AVA9418 Avianca - Aerovias Nacionales de Colombia, S.A. 4 2026-07-24
AVA8503 Avianca - Aerovias Nacionales de Colombia, S.A. 4 2026-07-24
AVA118 - 4 2026-06-28
AVA008 - 4 2026-07-11
AVA005 - 4 2026-07-11
AVA9817 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-07-22
AVA9348 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-07-19
AVA8484 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-05-20
AVA8403 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-07-21
AVA259 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-07-22
AVA171 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-07-23
AVA145 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-06-14
AVA127 - 3 2026-07-18
AVA119 - 3 2026-06-28
AVA063 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-06-19
AVA062 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-06-18
AVA048 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-05-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AVA8457 MTR → MDE Jul 26, 20:30 UTCJul 26, 20:40 UTC10m
2026-07-26 AVA8413 RCH → BOG Jul 26, 18:15 UTCJul 26, 19:10 UTC55m
2026-07-26 AVA8590 BOG → RCH Jul 26, 16:00 UTCJul 26, 16:55 UTC55m
2026-07-26 AVR4816 NVA → BOG Jul 26, 14:10 UTCJul 26, 14:30 UTC20m
2026-07-26 AVR4815 - Jul 26, 11:55 UTCJul 26, 12:05 UTC10m
2026-07-26 AVA009 - Jul 26, 06:55 UTCJul 26, 10:05 UTC3h 10m
2026-07-26 AVA006 - Jul 26, 00:15 UTCJul 26, 03:35 UTC3h 20m
2026-07-25 AVA8575 BAQ → BOG Jul 25, 21:50 UTCJul 25, 22:45 UTC55m
2026-07-25 AVA8582 MDE → BAQ Jul 25, 19:30 UTCJul 25, 20:30 UTC1h 0m
2026-07-25 AVR4811 IPI → BOG Jul 25, 15:15 UTCJul 25, 18:10 UTC2h 55m
2026-07-25 AVA8581 VUP → BOG Jul 25, 03:15 UTCJul 25, 03:30 UTC15m
2026-07-25 AVA8581 VUP → BOG Jul 25, 02:35 UTCJul 25, 02:45 UTC10m
2026-07-25 AVA8580 BOG → VUP Jul 25, 00:40 UTCJul 25, 01:25 UTC45m
2026-07-24 AVA9418 PEI → BOG Jul 24, 22:15 UTCJul 24, 22:45 UTC30m
2026-07-24 AVA8473 SMR → PEI Jul 24, 20:10 UTCJul 24, 21:10 UTC1h 0m
2026-07-24 AVA8474 PEI → SMR Jul 24, 17:55 UTCJul 24, 18:45 UTC50m
2026-07-24 AVA8503 BOG → PEI Jul 24, 16:20 UTCJul 24, 16:50 UTC30m
2026-07-23 AVA8591 RCH → BOG Jul 23, 20:55 UTCJul 23, 21:55 UTC1h 0m
2026-07-23 AVA8412 BOG → RCH Jul 23, 18:20 UTCJul 23, 19:10 UTC50m
2026-07-23 AVA8522 CLO → BOG Jul 23, 16:50 UTCJul 23, 17:05 UTC15m
2026-07-23 AVA8523 BOG → CLO Jul 23, 14:40 UTCJul 23, 14:50 UTC10m
2026-07-23 AVA171 BOG → BEL Jul 23, 04:55 UTCJul 23, 05:30 UTC35m
2026-07-23 AVA171 BOG → BEL Jul 23, 03:35 UTCJul 23, 03:55 UTC20m
2026-07-22 AVA259 SJU → BOG Jul 22, 23:00 UTCJul 23, 01:30 UTC2h 30m
2026-07-22 AVA258 BOG → SJU Jul 22, 20:45 UTCJul 22, 20:55 UTC10m
2026-07-22 AVA258 BOG → SJU Jul 22, 19:40 UTCJul 22, 20:00 UTC20m
2026-07-22 AVA258 BOG → SJU Jul 22, 18:40 UTCJul 22, 18:55 UTC15m
2026-07-22 AVA9489 LET → BOG Jul 22, 15:20 UTCJul 22, 16:35 UTC1h 15m
2026-07-22 AVA9488 BOG → LET Jul 22, 13:40 UTCJul 22, 14:10 UTC30m
2026-07-22 AVA9488 BOG → LET Jul 22, 12:35 UTCJul 22, 12:50 UTC15m
2026-07-22 AVA9817 BOG → PEI Jul 22, 03:45 UTCJul 22, 04:10 UTC25m
2026-07-22 AVA8405 BOG → CLO Jul 22, 02:15 UTCJul 22, 02:30 UTC15m
2026-07-22 AVA9324 BOG → MDE Jul 22, 00:05 UTCJul 22, 00:20 UTC15m
2026-07-21 AVA8575 BAQ → BOG Jul 21, 21:40 UTCJul 21, 22:40 UTC1h 0m
2026-07-21 AVA8582 MDE → BAQ Jul 21, 19:30 UTCJul 21, 20:25 UTC55m
2026-07-21 AVA8560 PEI → BOG Jul 21, 17:05 UTCJul 21, 17:35 UTC30m
2026-07-21 AVA8403 MDE → PEI Jul 21, 15:55 UTCJul 21, 16:05 UTC10m
2026-07-21 AVA8403 MDE → PEI Jul 21, 11:55 UTCJul 21, 13:05 UTC1h 10m
2026-07-21 AVA8403 MDE → PEI Jul 21, 03:15 UTCJul 21, 04:20 UTC1h 5m
2026-07-21 AVA8441 ADZ → MDE Jul 21, 01:20 UTCJul 21, 01:30 UTC10m
2026-07-20 AVA8440 MDE → ADZ Jul 20, 23:05 UTCJul 20, 23:15 UTC10m
2026-07-20 AVA9451 SMR → MDE Jul 20, 19:40 UTCJul 20, 20:20 UTC40m
2026-07-20 AVA9446 MDE → SMR Jul 20, 18:00 UTCJul 20, 18:35 UTC35m
2026-07-20 AVA8466 PEI → MDE Jul 20, 12:05 UTCJul 20, 16:20 UTC4h 15m
2026-07-20 AVA8448 CLO → MDE Jul 20, 10:25 UTCJul 20, 10:35 UTC10m
2026-07-20 AVA9439 MDE → CLO Jul 20, 03:05 UTCJul 20, 03:25 UTC20m
2026-07-20 AVA9567 CTG → MDE Jul 20, 01:00 UTCJul 20, 01:40 UTC40m
2026-07-19 AVA8502 MDE → CTG Jul 19, 23:25 UTCJul 20, 00:05 UTC40m
2026-07-19 AVA8517 BOG → PEI Jul 19, 20:50 UTCJul 19, 21:40 UTC50m
2026-07-19 AVA8516 MDE → RCH Jul 19, 18:50 UTCJul 19, 19:30 UTC40m

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-5424 page for operator, model, and routing details .

Mode-S 0ACAC1 frequently asked

What is Mode-S code 0ACAC1?
0ACAC1 is an ICAO 24-bit transponder address. Allocated to Costa Rica. Assigned to HK-5424.
Where is Mode-S 0ACAC1 registered?
Mode-S code 0ACAC1 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 0ACAC1 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 0ACAC1, octal 02545301, decimal 707,265.
What flights does 0ACAC1 operate?
Mode-S 0ACAC1 has broadcast 20 distinct callsigns, including AVA258, AVA051, AVA007, AVA9418, AVA8503.