sensors Mode-S transponder

0ACA5F

ICAO 24-bit transponder address · allocated to Costa Rica

Currently assigned to HK-5389 · AIRBUS A-320neo

Hex
0ACA5F
Octal
02545137
Decimal
707,167
Country
CR
Tail
HK-5389
Type
A20N
No current signal · last broadcast 1h ago
Flights observed
290
Distinct callsigns
20
Country
CR
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 0ACA5F.

Country allocation

The ICAO 24-bit address 0ACA5F 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
AVA224 - 11 2026-07-03
AVA260 Avianca - Aerovias Nacionales de Colombia, S.A. 9 2026-06-13
AVA021 - 9 2026-07-12
AVA261 Avianca - Aerovias Nacionales de Colombia, S.A. 8 2026-06-13
AVA205 Avianca - Aerovias Nacionales de Colombia, S.A. 7 2026-05-30
AVA154 - 6 2026-07-06
AVA112 - 6 2026-07-10
AVA020 - 6 2026-07-12
AVA247 Avianca - Aerovias Nacionales de Colombia, S.A. 5 2026-06-20
AVA210 - 5 2026-06-28
AVA185 - 5 2026-07-13
AVA184 - 5 2026-07-13
AVA155 - 5 2026-07-06
AVA149 - 5 2026-06-29
AVA147 - 5 2026-07-11
AVA111 - 5 2026-07-09
AVA104 - 5 2026-07-07
AVA246 - 4 2026-06-20
AVA241 Avianca - Aerovias Nacionales de Colombia, S.A. 4 2026-05-15
AVA239 - 4 2026-07-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 AVA184 - Jul 13, 20:25 UTCJul 14, 01:45 UTC5h 20m
2026-07-13 AVA185 - Jul 13, 13:20 UTCJul 13, 18:40 UTC5h 20m
2026-07-13 AVA248 - Jul 13, 04:40 UTCJul 13, 09:25 UTC4h 45m
2026-07-12 AVA249 - Jul 12, 20:35 UTCJul 13, 01:15 UTC4h 40m
2026-07-12 AVA249 - Jul 12, 19:40 UTCJul 12, 19:50 UTC10m
2026-07-12 AVA021 JFK → BOG Jul 12, 12:05 UTCJul 12, 17:10 UTC5h 5m
2026-07-12 AVA020 BOG → JFK Jul 12, 04:20 UTCJul 12, 09:25 UTC5h 5m
2026-07-11 AVA146 - Jul 11, 20:10 UTCJul 12, 02:35 UTC6h 25m
2026-07-11 AVA147 - Jul 11, 12:45 UTCJul 11, 17:50 UTC5h 5m
2026-07-10 AVA257 CUN → BOG Jul 10, 17:55 UTCJul 11, 10:55 UTC17h 0m
2026-07-10 AVA268 - Jul 10, 14:50 UTCJul 10, 16:30 UTC1h 40m
2026-07-10 AVA112 - Jul 10, 05:40 UTCJul 10, 11:45 UTC6h 5m
2026-07-09 AVA111 - Jul 9, 22:10 UTCJul 10, 04:05 UTC5h 55m
2026-07-09 AVA269 - Jul 9, 17:50 UTCJul 9, 19:15 UTC1h 25m
2026-07-09 AVA268 - Jul 9, 13:40 UTCJul 9, 16:30 UTC2h 50m
2026-07-09 AVA112 - Jul 9, 05:45 UTCJul 9, 11:35 UTC5h 50m
2026-07-08 AVA111 CUN → EZE Jul 8, 18:20 UTCJul 9, 04:20 UTC10h 0m
2026-07-08 AVA256 - Jul 8, 03:50 UTCJul 8, 17:00 UTC13h 10m
2026-07-07 AVA104 - Jul 7, 13:55 UTCJul 8, 01:10 UTC11h 15m
2026-07-07 AVA8539 - Jul 7, 00:25 UTCJul 7, 00:35 UTC10m
2026-07-06 AVA076 BOG → BOG Jul 6, 18:25 UTCJul 6, 22:20 UTC3h 55m
2026-07-06 AVA154 AEP → BOG Jul 6, 10:15 UTCJul 6, 16:40 UTC6h 25m
2026-07-06 AVA155 BOG → AEP Jul 6, 02:45 UTCJul 6, 08:15 UTC5h 30m
2026-07-06 AVA137 - Jul 6, 00:50 UTCJul 6, 01:10 UTC20m
2026-07-05 AVA137 - Jul 5, 20:05 UTCJul 5, 23:55 UTC3h 50m
2026-07-05 AVA021 JFK → BOG Jul 5, 12:10 UTCJul 5, 14:30 UTC2h 20m
2026-07-05 AVA020 - Jul 5, 07:35 UTCJul 5, 09:35 UTC2h 0m
2026-07-04 AVA105 - Jul 4, 14:45 UTCJul 5, 00:00 UTC9h 15m
2026-07-03 AVA224 - Jul 3, 08:45 UTCJul 3, 23:55 UTC15h 10m
2026-07-03 AVA239 - Jul 3, 03:50 UTCJul 3, 23:55 UTC20h 5m
2026-07-02 AVA104 - Jul 2, 14:40 UTCJul 2, 23:55 UTC9h 15m
2026-07-01 AVA166 - Jul 1, 22:50 UTCJul 2, 10:20 UTC11h 30m
2026-07-01 AVA093 - Jul 1, 17:05 UTCJul 1, 21:10 UTC4h 5m
2026-06-30 AVA198 - Jun 30, 04:55 UTCJun 30, 09:45 UTC4h 50m
2026-06-29 AVA149 - Jun 29, 10:59 UTCJun 30, 03:15 UTC16h 15m
2026-06-29 AVA148 - Jun 29, 06:50 UTCJun 29, 08:44 UTC1h 55m
2026-06-28 AVA211 - Jun 28, 20:14 UTCJun 28, 22:45 UTC2h 30m
2026-06-28 AVA210 - Jun 28, 15:34 UTCJun 28, 17:50 UTC2h 15m
2026-06-27 AVA146 - Jun 27, 19:55 UTCJun 27, 22:49 UTC2h 55m
2026-06-26 AVA147 - Jun 26, 23:49 UTCJun 27, 18:09 UTC18h 20m
2026-06-26 AVA147 - Jun 26, 23:39 UTCJun 27, 18:09 UTC18h 30m
2026-06-26 AVA224 - Jun 26, 08:50 UTCJun 27, 00:10 UTC15h 20m
2026-06-26 AVA224 - Jun 26, 03:54 UTCJun 27, 00:10 UTC20h 15m
2026-06-25 AVA224 - Jun 25, 21:10 UTCJun 26, 15:20 UTC18h 10m
2026-06-25 AVA216 - Jun 25, 17:44 UTCJun 25, 18:45 UTC1h 0m
2026-06-25 AVA201 - Jun 25, 03:29 UTCJun 25, 06:25 UTC2h 55m
2026-06-24 AVA200 - Jun 24, 22:04 UTCJun 25, 00:59 UTC2h 55m
2026-06-24 AVA149 - Jun 24, 10:59 UTCJun 24, 13:14 UTC2h 15m
2026-06-24 AVA148 - Jun 24, 07:10 UTCJun 24, 09:09 UTC2h 0m
2026-06-23 AVA265 - Jun 23, 23:24 UTCJun 24, 00:44 UTC1h 20m

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-5389 page for operator, model, and routing details .

Mode-S 0ACA5F frequently asked

What is Mode-S code 0ACA5F?
0ACA5F is an ICAO 24-bit transponder address. Allocated to Costa Rica. Assigned to HK-5389.
Where is Mode-S 0ACA5F registered?
Mode-S code 0ACA5F 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 0ACA5F broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 0ACA5F, octal 02545137, decimal 707,167.
What flights does 0ACA5F operate?
Mode-S 0ACA5F has broadcast 20 distinct callsigns, including AVA224, AVA260, AVA021, AVA261, AVA205.