Apparatus

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sensors Mode-S transponder

0AC3F7

ICAO 24-bit transponder address · allocated to Costa Rica

Currently assigned to HK-5292 · ATR-72-600

Hex
0AC3F7
Octal
02541767
Decimal
705,527
Country
CR
Tail
HK-5292
Type
AT76
No current signal · last broadcast Jul 26, 17:00 UTC
Flights observed
298
Distinct callsigns
20
Country
CR
Last broadcast
Jul 26, 17:00 UTC

Last known position

Most recent position reported by Mode-S 0AC3F7.

Country allocation

The ICAO 24-bit address 0AC3F7 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
AVR4802 - 22 2026-07-22
AVR4800 Avianca Express 22 2026-07-23
AVR4803 - 19 2026-07-22
AVR4858 - 18 2026-07-22
AVR4857 Avianca Express 18 2026-07-22
AVR4867 Avianca Express 17 2026-07-22
AVR4866 - 13 2026-07-15
AVR4833 - 12 2026-07-20
AVR4801 Avianca Express 11 2026-07-21
AVR4844 - 8 2026-07-20
AVR5212 - 7 2026-07-17
AVR4854 - 7 2026-07-20
AVR4874 - 6 2026-07-14
AVR4855 - 6 2026-07-20
AVR4824 - 6 2026-07-16
EFY9040 EasyFly 5 2026-06-04
EFY7834 EasyFly 5 2026-07-17
AVR5213 - 5 2026-07-17
EFY9041 EasyFly 4 2026-06-04
EFY7835 - 4 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 EFY8949 UIB → EOH Jul 26, 16:45 UTCJul 26, 17:00 UTC15m
2026-07-26 EFY8948 EOH → UIB Jul 26, 15:10 UTCJul 26, 15:20 UTC10m
2026-07-25 EFY8958 EOH → UIB Jul 25, 20:45 UTCJul 25, 20:55 UTC10m
2026-07-25 EFY9081 BGA → EOH Jul 25, 19:50 UTCJul 25, 20:00 UTC10m
2026-07-23 AVR9264 - Jul 23, 23:45 UTCJul 23, 23:55 UTC10m
2026-07-23 AVR9265 - Jul 23, 22:35 UTCJul 23, 22:50 UTC15m
2026-07-23 AVR9255 - Jul 23, 20:55 UTCJul 23, 21:15 UTC20m
2026-07-23 AVR9254 - Jul 23, 19:55 UTCJul 23, 20:10 UTC15m
2026-07-23 AVR9277 MTR → MDE Jul 23, 14:50 UTCJul 23, 15:00 UTC10m
2026-07-23 AVR4800 BOG → BGA Jul 23, 01:15 UTCJul 23, 01:35 UTC20m
2026-07-22 AVR4802 - Jul 22, 23:20 UTCJul 23, 00:00 UTC40m
2026-07-22 AVR4803 - Jul 22, 21:35 UTCJul 22, 22:10 UTC35m
2026-07-22 AVR4858 - Jul 22, 20:00 UTCJul 22, 20:20 UTC20m
2026-07-22 AVR4857 BOG → AXM Jul 22, 18:10 UTCJul 22, 18:25 UTC15m
2026-07-22 AVR4867 BOG → AXM Jul 22, 14:40 UTCJul 22, 15:15 UTC35m
2026-07-22 AVR4852 - Jul 22, 03:00 UTCJul 22, 03:40 UTC40m
2026-07-22 AVR4853 - Jul 22, 01:25 UTCJul 22, 01:55 UTC30m
2026-07-22 AVR4860 - Jul 22, 00:10 UTCJul 22, 00:30 UTC20m
2026-07-21 AVR4859 - Jul 21, 22:20 UTCJul 21, 22:35 UTC15m
2026-07-21 AVR4835 - Jul 21, 18:25 UTCJul 21, 18:40 UTC15m
2026-07-21 AVR4881 - Jul 21, 17:05 UTCJul 21, 17:25 UTC20m
2026-07-21 AVR4880 - Jul 21, 15:00 UTCJul 21, 15:15 UTC15m
2026-07-21 AVR4809 - Jul 21, 13:20 UTCJul 21, 13:40 UTC20m
2026-07-21 AVR4810 - Jul 21, 11:40 UTCJul 21, 11:55 UTC15m
2026-07-21 AVR4801 BGA → BOG Jul 21, 03:45 UTCJul 21, 04:05 UTC20m
2026-07-21 AVR4800 - Jul 21, 01:35 UTCJul 21, 01:50 UTC15m
2026-07-20 AVR4802 - Jul 20, 23:20 UTCJul 21, 00:05 UTC44m
2026-07-20 AVR4803 - Jul 20, 21:45 UTCJul 20, 22:20 UTC35m
2026-07-20 AVR4854 - Jul 20, 18:25 UTCJul 20, 19:00 UTC35m
2026-07-20 AVR4855 - Jul 20, 14:30 UTCJul 20, 15:05 UTC35m
2026-07-20 AVR4844 - Jul 20, 12:55 UTCJul 20, 13:15 UTC20m
2026-07-20 AVR4833 - Jul 20, 11:25 UTCJul 20, 11:35 UTC10m
2026-07-18 AVR4800 - Jul 18, 01:15 UTCJul 18, 01:20 UTC5m
2026-07-17 EFY9047 - Jul 17, 22:35 UTCJul 17, 22:55 UTC20m
2026-07-17 EYF9046 - Jul 17, 20:55 UTCJul 17, 21:10 UTC15m
2026-07-17 EFY9017 - Jul 17, 19:05 UTCJul 17, 19:35 UTC30m
2026-07-17 EFY9016 BOG → EYP Jul 17, 17:35 UTCJul 17, 17:50 UTC15m
2026-07-17 EFY7835 - Jul 17, 15:55 UTCJul 17, 16:40 UTC45m
2026-07-17 EFY7834 BOG → MZL Jul 17, 14:39 UTCJul 17, 15:10 UTC30m
2026-07-17 AVR4844 - Jul 17, 13:05 UTCJul 17, 13:15 UTC10m
2026-07-17 AVR5212 - Jul 17, 04:04 UTCJul 17, 04:44 UTC40m
2026-07-17 AVR5213 - Jul 17, 02:54 UTCJul 17, 03:05 UTC10m
2026-07-16 AVR4873 - Jul 16, 22:59 UTCJul 16, 23:15 UTC15m
2026-07-16 AVR4827 - Jul 16, 21:30 UTCJul 16, 21:50 UTC20m
2026-07-16 AVR4824 - Jul 16, 19:50 UTCJul 16, 20:00 UTC10m
2026-07-16 AVR4854 - Jul 16, 17:45 UTCJul 16, 18:15 UTC30m
2026-07-16 AVR4855 - Jul 16, 15:30 UTCJul 16, 16:05 UTC35m
2026-07-16 AVR4800 - Jul 16, 01:20 UTCJul 16, 01:25 UTC5m
2026-07-15 AVR4802 - Jul 15, 23:25 UTCJul 16, 00:00 UTC35m
2026-07-15 AVR4803 - Jul 15, 21:40 UTCJul 15, 22:15 UTC35m

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-5292 page for operator, model, and routing details .

Mode-S 0AC3F7 frequently asked

What is Mode-S code 0AC3F7?
0AC3F7 is an ICAO 24-bit transponder address. Allocated to Costa Rica. Assigned to HK-5292.
Where is Mode-S 0AC3F7 registered?
Mode-S code 0AC3F7 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 0AC3F7 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 17:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 0AC3F7, octal 02541767, decimal 705,527.
What flights does 0AC3F7 operate?
Mode-S 0AC3F7 has broadcast 20 distinct callsigns, including AVR4802, AVR4800, AVR4803, AVR4858, AVR4857.