Apparatus

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sensors Mode-S transponder

0ACA7D

ICAO 24-bit transponder address · allocated to Costa Rica

Currently assigned to HK-5354 · ATR-72-600

Hex
0ACA7D
Octal
02545175
Decimal
707,197
Country
CR
Tail
HK-5354
Type
AT76
No current signal · last broadcast 29d ago
Flights observed
92
Distinct callsigns
20
Country
CR
Last broadcast
29d ago

Last known position

Most recent position reported by Mode-S 0ACA7D.

Country allocation

The ICAO 24-bit address 0ACA7D 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
EFY9021 EasyFly 6 2026-07-22
EFY9020 EasyFly 6 2026-07-22
EFY8995 EasyFly 5 2026-07-22
EFY8994 EasyFly 5 2026-07-22
EFY9026 EasyFly 3 2026-07-18
HK5354 - 2 2026-07-07
EFY9169 - 2 2026-07-20
EFY9168 - 2 2026-07-20
EFY9165 EasyFly 2 2026-07-21
EFY9038 - 2 2026-07-19
EFY9031 - 2 2026-07-19
EFY9030 - 2 2026-07-19
EFY9027 - 2 2026-07-19
EFY9011 EasyFly 2 2026-07-22
EFY9010 - 2 2026-07-22
EFY8958 - 2 2026-07-13
EFY8943 EasyFly 2 2026-07-23
EFY8941 - 2 2026-07-14
EFY8940 - 2 2026-07-14
EFY7839 EasyFly 2 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 EFY8977 APO → EOH Jul 26, 19:30 UTCJul 26, 19:35 UTC5m
2026-07-26 EFY8976 EOH → APO Jul 26, 17:55 UTCJul 26, 18:05 UTC10m
2026-07-26 EFY7821 VVC → EOH Jul 26, 16:40 UTCJul 26, 17:15 UTC35m
2026-07-26 EFY7820 EOH → VVC Jul 26, 14:50 UTCJul 26, 15:40 UTC50m
2026-07-25 EFY8989 MTR → EOH Jul 25, 22:15 UTCJul 25, 22:25 UTC10m
2026-07-25 EFY8980 EOH → MTR Jul 25, 20:05 UTCJul 25, 20:20 UTC15m
2026-07-25 EFY6951 - Jul 25, 18:45 UTCJul 25, 18:50 UTC5m
2026-07-25 EFY8983 MTR → EOH Jul 25, 15:45 UTCJul 25, 15:55 UTC10m
2026-07-25 EFY8982 EOH → MTR Jul 25, 13:55 UTCJul 25, 14:05 UTC10m
2026-07-25 EFY8945 UIB → EOH Jul 25, 13:15 UTCJul 25, 13:20 UTC5m
2026-07-25 EFY8944 EOH → UIB Jul 25, 11:55 UTCJul 25, 12:05 UTC10m
2026-07-25 EFY9104 BOG → EOH Jul 25, 11:05 UTCJul 25, 11:20 UTC15m
2026-07-25 EFY9049 NVA → BOG Jul 25, 02:35 UTCJul 25, 03:05 UTC30m
2026-07-25 EFY9048 BOG → NVA Jul 25, 00:55 UTCJul 25, 01:10 UTC15m
2026-07-24 EFY7839 MZL → BOG Jul 24, 23:00 UTCJul 24, 23:15 UTC15m
2026-07-24 EFY7838 BOG → MZL Jul 24, 21:35 UTCJul 24, 22:05 UTC30m
2026-07-24 EFY7819 LMC → BOG Jul 24, 20:05 UTCJul 24, 20:25 UTC20m
2026-07-24 EFY7818 BOG → LMC Jul 24, 17:50 UTCJul 24, 18:10 UTC20m
2026-07-24 EFY7881 VVC → BOG Jul 24, 16:30 UTCJul 24, 16:50 UTC20m
2026-07-24 EFY7880 BOG → VVC Jul 24, 14:50 UTCJul 24, 15:00 UTC10m
2026-07-23 EFY8943 UIB → BOG Jul 23, 23:55 UTCJul 24, 00:35 UTC40m
2026-07-23 EFY8942 BOG → UIB Jul 23, 19:50 UTCJul 23, 20:25 UTC35m
2026-07-23 EFY9035 FLA → BOG Jul 23, 18:15 UTCJul 23, 18:40 UTC25m
2026-07-23 EFY9034 - Jul 23, 15:55 UTCJul 23, 16:15 UTC20m
2026-07-23 EFY9047 NVA → BOG Jul 23, 00:15 UTCJul 23, 00:35 UTC20m
2026-07-22 EFY9046 BOG → NVA Jul 22, 22:40 UTCJul 22, 22:55 UTC15m
2026-07-22 EFY9021 EYP → BOG Jul 22, 21:00 UTCJul 22, 21:20 UTC20m
2026-07-22 EFY9020 BOG → EYP Jul 22, 19:25 UTCJul 22, 19:35 UTC10m
2026-07-22 EFY8995 PUU → BOG Jul 22, 18:00 UTCJul 22, 18:30 UTC30m
2026-07-22 EFY8994 BOG → PUU Jul 22, 15:15 UTCJul 22, 15:25 UTC10m
2026-07-22 EFY9011 EYP → BOG Jul 22, 12:50 UTCJul 22, 13:10 UTC20m
2026-07-22 EFY9010 - Jul 22, 11:20 UTCJul 22, 11:35 UTC15m
2026-07-21 EFY7839 MZL → BOG Jul 21, 22:20 UTCJul 21, 22:35 UTC15m
2026-07-21 EFY7837 MZL → BOG Jul 21, 19:25 UTCJul 21, 19:55 UTC30m
2026-07-21 EFY7836 BOG → MZL Jul 21, 18:00 UTCJul 21, 18:25 UTC25m
2026-07-21 EFY9015 EYP → BOG Jul 21, 16:15 UTCJul 21, 16:35 UTC20m
2026-07-21 EFY9014 BOG → EYP Jul 21, 14:40 UTCJul 21, 14:55 UTC15m
2026-07-21 EFY9165 PPN → BOG Jul 21, 13:35 UTCJul 21, 13:50 UTC15m
2026-07-21 EFY9164 BOG → PPN Jul 21, 11:05 UTCJul 21, 11:30 UTC25m
2026-07-20 EFY9169 - Jul 20, 23:45 UTCJul 21, 00:00 UTC15m
2026-07-20 EFY9168 - Jul 20, 21:05 UTCJul 20, 21:25 UTC20m
2026-07-20 EFY8995 - Jul 20, 18:25 UTCJul 20, 19:00 UTC35m
2026-07-20 EFY8994 BOG → PUU Jul 20, 14:45 UTCJul 20, 15:05 UTC20m
2026-07-20 EFY9041 - Jul 20, 12:50 UTCJul 20, 13:10 UTC20m
2026-07-20 EFY9040 BOG → NVA Jul 20, 11:10 UTCJul 20, 11:30 UTC20m
2026-07-20 EFY9039 FLA → BOG Jul 20, 01:20 UTCJul 20, 01:40 UTC20m
2026-07-19 EFY9038 - Jul 19, 22:45 UTCJul 19, 23:05 UTC20m
2026-07-19 EFY9021 - Jul 19, 21:05 UTCJul 19, 21:25 UTC20m
2026-07-19 EFY9020 - Jul 19, 19:25 UTCJul 19, 19:40 UTC15m
2026-07-19 EFY9031 - Jul 19, 18:10 UTCJul 19, 18:30 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-5354 page for operator, model, and routing details .

Mode-S 0ACA7D frequently asked

What is Mode-S code 0ACA7D?
0ACA7D is an ICAO 24-bit transponder address. Allocated to Costa Rica. Assigned to HK-5354.
Where is Mode-S 0ACA7D registered?
Mode-S code 0ACA7D 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 0ACA7D broadcasting right now?
No active broadcast right now. Last signal was 29d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 0ACA7D, octal 02545175, decimal 707,197.
What flights does 0ACA7D operate?
Mode-S 0ACA7D has broadcast 20 distinct callsigns, including EFY9021, EFY9020, EFY8995, EFY8994, EFY9026.