Apparatus

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sensors Mode-S transponder

0AC425

ICAO 24-bit transponder address · allocated to Costa Rica

Currently assigned to HK-5314 · ATR-42-600

Hex
0AC425
Octal
02542045
Decimal
705,573
Country
CR
Tail
HK-5314
Type
AT46
No current signal · last broadcast 10h ago
Flights observed
109
Distinct callsigns
20
Country
CR
Last broadcast
10h ago

Last known position

Most recent position reported by Mode-S 0AC425.

Country allocation

The ICAO 24-bit address 0AC425 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
EFY9031 EasyFly 6 2026-05-19
EFY9030 EasyFly 6 2026-05-19
EFY9168 EasyFly 5 2026-05-19
EFY9048 EasyFly 5 2026-05-20
EFY9169 EasyFly 4 2026-05-20
EFY9010 EasyFly 4 2026-05-20
EFY8999 - 4 2026-04-24
EFY6985 EasyFly 4 2026-04-27
EFY6984 EasyFly 4 2026-04-27
EFY9040 EasyFly 3 2026-04-27
EFY9011 EasyFly 3 2026-05-20
EFY9001 - 3 2026-05-18
EFY9000 - 3 2026-05-18
EFY8998 - 3 2026-04-24
EFY8940 EasyFly 3 2026-04-27
EFY9131 EasyFly 2 2026-05-17
EFY9114 EasyFly 2 2026-05-29
EFY9049 EasyFly 2 2026-05-19
EFY9027 EasyFly 2 2026-05-17
EFY9026 EasyFly 2 2026-05-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 EFY9114 BOG → EOH May 29, 17:00 UTCMay 29, 17:20 UTC20m
2026-05-29 EFY9113 EOH → BOG May 29, 14:35 UTCMay 29, 14:55 UTC20m
2026-05-20 EFY9122 BOG → EOH May 20, 17:40 UTCMay 20, 17:55 UTC15m
2026-05-20 EFY9107 EOH → BOG May 20, 16:05 UTCMay 20, 16:25 UTC20m
2026-05-20 EFY9106 BOG → EOH May 20, 14:20 UTCMay 20, 14:30 UTC10m
2026-05-20 EFY9011 EYP → BOG May 20, 12:55 UTCMay 20, 13:20 UTC25m
2026-05-20 EFY9010 BOG → EYP May 20, 11:15 UTCMay 20, 11:30 UTC15m
2026-05-20 EFY9048 BOG → NVA May 20, 02:45 UTCMay 20, 03:05 UTC20m
2026-05-20 EFY9048 BOG → NVA May 20, 01:10 UTCMay 20, 01:30 UTC20m
2026-05-20 EFY9169 PPN → BOG May 20, 00:00 UTCMay 20, 00:20 UTC20m
2026-05-19 EFY9168 BOG → PPN May 19, 21:20 UTCMay 19, 21:45 UTC25m
2026-05-19 EFY9031 PTX → BOG May 19, 19:55 UTCMay 19, 20:10 UTC15m
2026-05-19 EFY9030 BOG → PTX May 19, 17:40 UTCMay 19, 18:00 UTC20m
2026-05-19 EFY7887 - May 19, 16:05 UTCMay 19, 16:20 UTC15m
2026-05-19 EFY7886 - May 19, 13:55 UTCMay 19, 14:10 UTC15m
2026-05-19 EFY6979 EJA → BOG May 19, 12:55 UTCMay 19, 13:10 UTC15m
2026-05-19 EFY6978 BOG → EJA May 19, 11:05 UTCMay 19, 11:25 UTC20m
2026-05-19 EFY9049 NVA → BOG May 19, 03:15 UTCMay 19, 03:35 UTC20m
2026-05-19 EFY9048 BOG → NVA May 19, 01:40 UTCMay 19, 01:55 UTC15m
2026-05-19 EFY9169 PPN → BOG May 19, 00:15 UTCMay 19, 00:25 UTC10m
2026-05-18 EFY9168 BOG → PPN May 18, 21:40 UTCMay 18, 22:05 UTC25m
2026-05-18 EFY9031 PTX → BOG May 18, 20:05 UTCMay 18, 20:35 UTC30m
2026-05-18 EFY9030 BOG → PTX May 18, 17:35 UTCMay 18, 17:55 UTC20m
2026-05-18 EFY9001 - May 18, 14:35 UTCMay 18, 14:55 UTC20m
2026-05-18 EFY9000 - May 18, 11:15 UTCMay 18, 11:35 UTC20m
2026-05-17 EFY9131 EOH → BOG May 17, 22:45 UTCMay 17, 23:00 UTC15m
2026-05-17 EFY9114 BOG → EOH May 17, 15:40 UTCMay 17, 16:01 UTC20m
2026-05-17 EFY9027 EYP → BOG May 17, 00:40 UTCMay 17, 01:00 UTC20m
2026-05-16 EFY9026 BOG → EYP May 16, 22:50 UTCMay 16, 23:05 UTC15m
2026-05-16 EFY9021 EYP → BOG May 16, 21:30 UTCMay 16, 22:00 UTC30m
2026-05-16 EFY9020 BOG → EYP May 16, 19:20 UTCMay 16, 19:35 UTC15m
2026-05-16 EFY9125 EOH → BOG May 16, 17:01 UTCMay 16, 17:15 UTC15m
2026-05-16 EFY9110 BOG → EOH May 16, 12:45 UTCMay 16, 13:01 UTC15m
2026-05-16 EFY9109 EOH → BOG May 16, 11:35 UTCMay 16, 11:51 UTC15m
2026-04-28 EFY9048 BOG → NVA Apr 28, 00:55 UTCApr 28, 01:10 UTC15m
2026-04-27 EFY6985 EJA → BOG Apr 27, 23:25 UTCApr 27, 23:40 UTC15m
2026-04-27 EFY6984 BOG → EJA Apr 27, 21:05 UTCApr 27, 21:25 UTC20m
2026-04-27 EFY9045 NVA → BOG Apr 27, 19:25 UTCApr 27, 19:45 UTC20m
2026-04-27 EFY9044 BOG → NVA Apr 27, 17:40 UTCApr 27, 17:55 UTC15m
2026-04-27 EFY8940 BOG → UIB Apr 27, 16:35 UTCApr 27, 16:55 UTC20m
2026-04-27 EFY8940 BOG → UIB Apr 27, 14:30 UTCApr 27, 14:50 UTC20m
2026-04-27 EFY9040 BOG → NVA Apr 27, 12:45 UTCApr 27, 13:10 UTC25m
2026-04-27 EFY9040 BOG → NVA Apr 27, 11:00 UTCApr 27, 11:15 UTC15m
2026-04-26 EFY9169 PPN → BOG Apr 26, 23:25 UTCApr 26, 23:50 UTC25m
2026-04-26 EFY9168 BOG → PPN Apr 26, 21:10 UTCApr 26, 21:30 UTC20m
2026-04-26 EFY7817 MZL → BOG Apr 26, 18:35 UTCApr 26, 18:50 UTC15m
2026-04-26 EFY7816 BOG → MZL Apr 26, 17:00 UTCApr 26, 17:15 UTC15m
2026-04-26 EFY9001 - Apr 26, 15:40 UTCApr 26, 15:55 UTC15m
2026-04-26 EFY9000 - Apr 26, 11:30 UTCApr 26, 11:45 UTC15m
2026-04-25 EFY7838 BOG → MZL Apr 25, 20:50 UTCApr 25, 21:10 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-5314 page for operator, model, and routing details .

Mode-S 0AC425 frequently asked

What is Mode-S code 0AC425?
0AC425 is an ICAO 24-bit transponder address. Allocated to Costa Rica. Assigned to HK-5314.
Where is Mode-S 0AC425 registered?
Mode-S code 0AC425 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 0AC425 broadcasting right now?
No active broadcast right now. Last signal was 10h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 0AC425, octal 02542045, decimal 705,573.
What flights does 0AC425 operate?
Mode-S 0AC425 has broadcast 20 distinct callsigns, including EFY9031, EFY9030, EFY9168, EFY9048, EFY9169.