sensors Mode-S transponder

0AC40A

ICAO 24-bit transponder address · allocated to Costa Rica

Currently assigned to EJC1118 · BEECH 200 Super King Air

Hex
0AC40A
Octal
02542012
Decimal
705,546
Country
CR
Tail
EJC1118
Type
BE20
No current signal · last broadcast 3h ago
Flights observed
36
Distinct callsigns
2
Country
CR
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 0AC40A.

Country allocation

The ICAO 24-bit address 0AC40A 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 2 distinct

Callsign Airline Flights Last seen
EJC1118 - 18 2026-05-25
EJC1106 - 18 2026-06-02

Recent flights last 36

DateFlightRouteTakeoffLandingDuration
2026-06-02 EJC1106 - Jun 2, 20:40 UTCJun 2, 20:55 UTC15m
2026-06-01 EJC1106 - Jun 1, 15:00 UTCJun 1, 15:35 UTC35m
2026-05-31 EJC1106 - May 31, 17:55 UTCMay 31, 18:15 UTC20m
2026-05-31 EJC1106 - May 31, 14:35 UTCMay 31, 15:05 UTC30m
2026-05-31 EJC1106 - May 31, 13:10 UTCMay 31, 13:25 UTC15m
2026-05-28 EJC1106 - May 28, 16:20 UTCMay 28, 16:35 UTC15m
2026-05-28 EJC1106 - May 28, 13:25 UTCMay 28, 13:45 UTC20m
2026-05-25 EJC1118 - May 25, 21:40 UTCMay 25, 21:54 UTC15m
2026-05-25 EJC1106 - May 25, 18:40 UTCMay 25, 19:00 UTC20m
2026-05-24 EJC1106 - May 24, 15:25 UTCMay 24, 15:35 UTC10m
2026-05-23 EJC1106 - May 23, 23:10 UTCMay 23, 23:25 UTC15m
2026-05-23 EJC1106 - May 23, 22:15 UTCMay 23, 22:35 UTC20m
2026-05-23 EJC1118 - May 23, 19:55 UTCMay 23, 20:20 UTC25m
2026-05-23 EJC1118 - May 23, 15:40 UTCMay 23, 15:55 UTC15m
2026-05-21 EJC1106 - May 21, 12:40 UTCMay 21, 12:50 UTC10m
2026-05-21 EJC1106 - May 21, 11:35 UTCMay 21, 11:45 UTC10m
2026-05-20 EJC1118 - May 20, 20:55 UTCMay 20, 21:15 UTC20m
2026-05-20 EJC1118 - May 20, 15:20 UTCMay 20, 15:35 UTC15m
2026-05-15 EJC1118 - May 15, 22:35 UTCMay 15, 22:45 UTC10m
2026-05-15 EJC1118 - May 15, 15:30 UTCMay 15, 15:50 UTC20m
2026-05-15 EJC1106 - May 15, 12:55 UTCMay 15, 13:15 UTC20m
2026-05-15 EJC1106 - May 15, 11:30 UTCMay 15, 11:55 UTC25m
2026-05-14 EJC1118 - May 14, 20:25 UTCMay 14, 20:55 UTC30m
2026-04-26 EJC1118 - Apr 26, 18:30 UTCApr 26, 18:35 UTC5m
2026-04-26 EJC1118 - Apr 26, 15:15 UTCApr 26, 15:40 UTC25m
2026-04-25 EJC1106 - Apr 25, 20:15 UTCApr 25, 20:40 UTC25m
2026-04-23 EJC1118 - Apr 23, 16:35 UTCApr 23, 16:50 UTC15m
2026-04-20 EJC1118 - Apr 20, 23:30 UTCApr 21, 00:10 UTC40m
2026-04-20 EJC1118 - Apr 20, 20:10 UTCApr 20, 20:20 UTC10m
2026-04-19 EJC1118 - Apr 19, 21:20 UTCApr 19, 21:40 UTC20m
2026-04-19 EJC1118 - Apr 19, 14:05 UTCApr 19, 14:20 UTC15m
2026-04-14 EJC1118 - Apr 14, 20:55 UTCApr 14, 21:30 UTC35m
2026-04-14 EJC1118 - Apr 14, 15:55 UTCApr 14, 16:10 UTC15m
2026-04-13 EJC1106 - Apr 13, 22:25 UTCApr 13, 22:55 UTC30m
2026-04-13 EJC1106 - Apr 13, 16:10 UTCApr 13, 16:20 UTC10m
2026-04-12 EJC1118 - Apr 12, 17:15 UTCApr 12, 17:40 UTC25m

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 EJC1118 page for operator, model, and routing details .

Mode-S 0AC40A frequently asked

What is Mode-S code 0AC40A?
0AC40A is an ICAO 24-bit transponder address. Allocated to Costa Rica. Assigned to EJC1118.
Where is Mode-S 0AC40A registered?
Mode-S code 0AC40A 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 0AC40A broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 0AC40A, octal 02542012, decimal 705,546.
What flights does 0AC40A operate?
Mode-S 0AC40A has broadcast 2 distinct callsigns, including EJC1118, EJC1106.