Apparatus

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sensors Mode-S transponder

0ACA5E

ICAO 24-bit transponder address · allocated to Costa Rica

Currently assigned to HK-5390 · AIRBUS A-320neo

Hex
0ACA5E
Octal
02545136
Decimal
707,166
Country
CR
Tail
HK-5390
Type
A20N
Broadcasting now · callsign AVA144 · 37,000 ft
Flights observed
320
Distinct callsigns
20
Country
CR
Last broadcast
1h ago

Current position

0ACA5E is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 0ACA5E 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
AVA155 - 17 2026-07-01
AVA263 - 11 2026-07-09
AVA154 - 11 2026-07-02
AVA247 - 9 2026-07-09
AVA246 - 9 2026-07-09
AVA210 - 8 2026-06-19
AVA021 - 8 2026-07-08
AVA262 - 7 2026-07-08
AVA257 Avianca - Aerovias Nacionales de Colombia, S.A. 7 2026-06-11
AVA217 - 7 2026-07-06
AVA211 - 7 2026-06-19
AVA109 - 7 2026-06-23
AVA020 - 7 2026-07-08
AVA185 Avianca - Aerovias Nacionales de Colombia, S.A. 6 2026-04-27
AVA161 Avianca - Aerovias Nacionales de Colombia, S.A. 6 2026-07-06
AVA256 - 5 2026-07-12
AVA245 - 5 2026-07-01
AVA243 - 5 2026-06-26
AVA184 Avianca - Aerovias Nacionales de Colombia, S.A. 5 2026-04-27
AVA160 - 5 2026-07-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AVA144 - Jul 14, 00:50 UTCJul 14, 01:30 UTC40m
2026-07-13 AVA203 - Jul 13, 17:15 UTCJul 13, 20:30 UTC3h 15m
2026-07-13 AVA202 - Jul 13, 12:00 UTCJul 13, 15:15 UTC3h 15m
2026-07-13 AVA145 - Jul 13, 05:31 UTCJul 13, 10:10 UTC4h 40m
2026-07-13 AVA144 - Jul 13, 00:45 UTCJul 13, 03:15 UTC2h 30m
2026-07-12 AVA269 - Jul 12, 20:10 UTCJul 12, 20:20 UTC10m
2026-07-12 AVA269 - Jul 12, 17:50 UTCJul 12, 19:10 UTC1h 20m
2026-07-12 AVA256 BOG → CUN Jul 12, 13:15 UTCJul 12, 16:25 UTC3h 10m
2026-07-12 AVA119 - Jul 12, 03:50 UTCJul 12, 04:45 UTC55m
2026-07-11 AVA118 BOG → MCO Jul 11, 21:40 UTCJul 12, 01:20 UTC3h 40m
2026-07-11 AVA9228 - Jul 11, 19:30 UTCJul 11, 19:45 UTC15m
2026-07-11 AVA165 GUA → BOG Jul 11, 12:30 UTCJul 11, 15:10 UTC2h 40m
2026-07-11 AVA164 - Jul 11, 04:50 UTCJul 11, 07:20 UTC2h 30m
2026-07-11 AVA8539 - Jul 11, 00:50 UTCJul 11, 01:00 UTC10m
2026-07-10 AVA8590 - Jul 10, 16:20 UTCJul 10, 16:35 UTC15m
2026-07-10 AVA9243 - Jul 10, 14:15 UTCJul 10, 14:30 UTC15m
2026-07-10 AVA9342 - Jul 10, 04:15 UTCJul 10, 04:30 UTC15m
2026-07-09 AVA247 IAD → BOG Jul 9, 21:00 UTCJul 10, 02:15 UTC5h 15m
2026-07-09 AVA246 - Jul 9, 15:50 UTCJul 9, 17:50 UTC2h 0m
2026-07-09 AVA246 - Jul 9, 13:00 UTCJul 9, 13:15 UTC15m
2026-07-09 AVA263 - Jul 9, 05:30 UTCJul 9, 08:10 UTC2h 40m
2026-07-08 AVA262 - Jul 8, 22:50 UTCJul 9, 01:40 UTC2h 50m
2026-07-08 AVA021 - Jul 8, 11:50 UTCJul 8, 14:15 UTC2h 25m
2026-07-08 AVA020 - Jul 8, 07:15 UTCJul 8, 09:30 UTC2h 15m
2026-07-07 AVA029 - Jul 7, 22:50 UTCJul 7, 23:05 UTC15m
2026-07-07 AVA029 - Jul 7, 19:35 UTCJul 7, 20:20 UTC45m
2026-07-07 AVA028 BOG → MCO Jul 7, 13:35 UTCJul 7, 17:05 UTC3h 30m
2026-07-07 AVA160 - Jul 7, 05:40 UTCJul 7, 11:15 UTC5h 35m
2026-07-06 AVA161 BOG → GRU Jul 6, 22:15 UTCJul 7, 03:30 UTC5h 15m
2026-07-06 AVA8504 - Jul 6, 18:20 UTCJul 6, 18:30 UTC10m
2026-07-06 AVA9241 - Jul 6, 16:30 UTCJul 6, 16:40 UTC10m
2026-07-06 AVA218A - Jul 6, 08:40 UTCJul 6, 14:05 UTC5h 25m
2026-07-06 AVA217 - Jul 6, 06:20 UTCJul 6, 06:50 UTC30m
2026-07-04 AVA217 - Jul 4, 22:20 UTCJul 5, 04:10 UTC5h 50m
2026-07-03 AVA146 - Jul 3, 20:05 UTCJul 4, 00:35 UTC4h 30m
2026-07-03 AVA205 - Jul 3, 05:25 UTCJul 3, 18:30 UTC13h 5m
2026-07-03 AVA204 NAS → YYZ Jul 3, 00:25 UTCJul 3, 03:00 UTC2h 35m
2026-07-02 AVA154 - Jul 2, 10:05 UTCJul 2, 15:10 UTC5h 5m
2026-07-01 AVA155 - Jul 1, 20:30 UTCJul 2, 08:05 UTC11h 35m
2026-07-01 AVA245 JFK → MEX Jul 1, 06:40 UTCJul 1, 17:50 UTC11h 10m
2026-07-01 AVA244 - Jul 1, 00:55 UTCJul 1, 03:25 UTC2h 30m
2026-06-30 AVA215 SJU → BOG Jun 30, 17:20 UTCJun 30, 18:40 UTC1h 20m
2026-06-30 AVA214 - Jun 30, 13:50 UTCJun 30, 15:00 UTC1h 10m
2026-06-29 AVA198 - Jun 29, 04:55 UTCJun 29, 07:50 UTC2h 55m
2026-06-28 AVA197 - Jun 28, 13:55 UTCJun 29, 02:59 UTC13h 5m
2026-06-28 AVA248 - Jun 28, 04:35 UTCJun 28, 08:59 UTC4h 25m
2026-06-27 AVA021 JFK → BOG Jun 27, 11:44 UTCJun 28, 01:10 UTC13h 25m
2026-06-27 AVA020 - Jun 27, 07:19 UTCJun 27, 09:34 UTC2h 15m
2026-06-26 AVA243 - Jun 26, 16:20 UTCJun 26, 16:39 UTC20m
2026-06-26 AVA242 - Jun 26, 14:55 UTCJun 26, 15:15 UTC20m

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-5390 page for operator, model, and routing details .

Mode-S 0ACA5E frequently asked

What is Mode-S code 0ACA5E?
0ACA5E is an ICAO 24-bit transponder address. Allocated to Costa Rica. Assigned to HK-5390.
Where is Mode-S 0ACA5E registered?
Mode-S code 0ACA5E 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 0ACA5E broadcasting right now?
Yes. Mode-S 0ACA5E is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 0ACA5E, octal 02545136, decimal 707,166.
What flights does 0ACA5E operate?
Mode-S 0ACA5E has broadcast 20 distinct callsigns, including AVA155, AVA263, AVA154, AVA247, AVA246.