Apparatus

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sensors Mode-S transponder

0AC412

ICAO 24-bit transponder address · allocated to Costa Rica

Currently assigned to HK-5298G · PIPER PA-28-140/150/160/180

Hex
0AC412
Octal
02542022
Decimal
705,554
Country
CR
Tail
HK-5298G
Type
P28A
No current signal · last broadcast 10h ago
Flights observed
184
Distinct callsigns
1
Country
CR
Last broadcast
10h ago

Last known position

Most recent position reported by Mode-S 0AC412.

Country allocation

The ICAO 24-bit address 0AC412 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 1 distinct

Callsign Airline Flights Last seen
HK5298G - 181 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 HK5298G - Jul 17, 19:30 UTCJul 17, 19:55 UTC25m
2026-07-17 HK5298G - Jul 17, 17:25 UTCJul 17, 17:55 UTC30m
2026-07-17 HK5298G - Jul 17, 16:10 UTCJul 17, 16:40 UTC30m
2026-07-17 HK5298G - Jul 17, 14:50 UTCJul 17, 15:20 UTC30m
2026-07-17 HK5298G - Jul 17, 11:55 UTCJul 17, 12:15 UTC20m
2026-07-16 HK5298G - Jul 16, 19:10 UTCJul 16, 19:40 UTC30m
2026-07-16 HK5298G - Jul 16, 17:30 UTCJul 16, 18:00 UTC30m
2026-07-16 HK5298G - Jul 16, 16:00 UTCJul 16, 16:30 UTC30m
2026-07-16 HK5298G - Jul 16, 14:55 UTCJul 16, 15:10 UTC15m
2026-07-15 HK5298G - Jul 15, 21:15 UTCJul 15, 21:50 UTC35m
2026-07-15 HK5298G - Jul 15, 19:45 UTCJul 15, 20:20 UTC35m
2026-07-15 HK5298G - Jul 15, 18:40 UTCJul 15, 19:05 UTC25m
2026-07-13 HK5298G - Jul 13, 17:45 UTCJul 13, 18:10 UTC25m
2026-07-13 HK5298G - Jul 13, 16:20 UTCJul 13, 16:55 UTC35m
2026-07-13 HK5298G - Jul 13, 14:55 UTCJul 13, 15:25 UTC30m
2026-07-13 HK5298G - Jul 13, 13:30 UTCJul 13, 14:00 UTC30m
2026-07-12 HK5298G - Jul 12, 19:20 UTCJul 12, 19:50 UTC30m
2026-07-12 HK5298G - Jul 12, 17:40 UTCJul 12, 18:15 UTC35m
2026-07-12 HK5298G - Jul 12, 16:20 UTCJul 12, 16:45 UTC25m
2026-07-12 HK5298G - Jul 12, 12:01 UTCJul 12, 12:50 UTC50m
2026-07-08 HK5298G - Jul 8, 18:00 UTCJul 8, 18:20 UTC20m
2026-07-08 HK5298G - Jul 8, 11:45 UTCJul 8, 12:15 UTC30m
2026-07-07 HK5298G - Jul 7, 19:20 UTCJul 7, 19:50 UTC30m
2026-07-07 HK5298G - Jul 7, 17:50 UTCJul 7, 18:10 UTC20m
2026-07-07 HK5298G - Jul 7, 16:25 UTCJul 7, 16:45 UTC20m
2026-07-07 HK5298G - Jul 7, 14:30 UTCJul 7, 15:00 UTC30m
2026-07-07 HK5298G - Jul 7, 13:10 UTCJul 7, 13:35 UTC25m
2026-07-06 HK5298G - Jul 6, 19:15 UTCJul 6, 19:45 UTC30m
2026-07-06 HK5298G - Jul 6, 17:50 UTCJul 6, 18:15 UTC25m
2026-07-06 HK5298G - Jul 6, 16:15 UTCJul 6, 16:35 UTC20m
2026-07-05 HK5298G - Jul 5, 20:30 UTCJul 5, 21:00 UTC30m
2026-07-05 HK5298G - Jul 5, 17:30 UTCJul 5, 17:50 UTC20m
2026-07-04 HK5298G - Jul 4, 13:45 UTCJul 4, 14:05 UTC20m
2026-07-01 HK5298G - Jul 1, 17:45 UTCJul 1, 18:05 UTC20m
2026-07-01 - - Jul 1, 14:00 UTCJul 1, 14:25 UTC25m
2026-06-26 HK5298G - Jun 26, 17:35 UTCJun 26, 17:54 UTC20m
2026-06-26 HK5298G - Jun 26, 16:09 UTCJun 26, 16:39 UTC30m
2026-06-25 HK5298G - Jun 25, 17:20 UTCJun 25, 17:34 UTC15m
2026-06-23 HK5298G - Jun 23, 17:25 UTCJun 23, 17:54 UTC30m
2026-06-23 - - Jun 23, 16:35 UTCJun 23, 16:44 UTC10m
2026-06-21 HK5298G - Jun 21, 15:44 UTCJun 21, 16:19 UTC35m
2026-06-20 HK5298G - Jun 20, 17:29 UTCJun 20, 17:49 UTC20m
2026-06-19 HK5298G - Jun 19, 15:54 UTCJun 19, 16:29 UTC35m
2026-06-19 HK5298G - Jun 19, 14:04 UTCJun 19, 14:49 UTC45m
2026-06-19 HK5298G - Jun 19, 12:25 UTCJun 19, 12:49 UTC25m
2026-06-18 HK5298G - Jun 18, 20:55 UTCJun 18, 21:30 UTC35m
2026-06-18 HK5298G - Jun 18, 19:35 UTCJun 18, 20:10 UTC35m
2026-06-18 HK5298G - Jun 18, 18:05 UTCJun 18, 18:35 UTC30m
2026-06-18 HK5298G - Jun 18, 15:50 UTCJun 18, 16:20 UTC30m
2026-06-18 HK5298G - Jun 18, 14:30 UTCJun 18, 15:10 UTC40m

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-5298G page for operator, model, and routing details .

Mode-S 0AC412 frequently asked

What is Mode-S code 0AC412?
0AC412 is an ICAO 24-bit transponder address. Allocated to Costa Rica. Assigned to HK-5298G.
Where is Mode-S 0AC412 registered?
Mode-S code 0AC412 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 0AC412 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 0AC412, octal 02542022, decimal 705,554.
What flights does 0AC412 operate?
Mode-S 0AC412 has broadcast 1 distinct callsign, including HK5298G.