Apparatus

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sensors Mode-S transponder

0ACCCB

ICAO 24-bit transponder address · allocated to Costa Rica

Currently assigned to HK-5479 · ATR-72-600

Hex
0ACCCB
Octal
02546313
Decimal
707,787
Country
CR
Tail
HK-5479
Type
AT76
No current signal · last broadcast 1h ago
Flights observed
151
Distinct callsigns
20
Country
CR
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 0ACCCB.

Country allocation

The ICAO 24-bit address 0ACCCB 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
EFY9127 - 21 2026-07-07
EFY9128 - 18 2026-07-07
EFY9110 EasyFly 10 2026-07-07
EFY9109 - 8 2026-07-09
EFY9114 - 6 2026-07-06
EFY9131 - 5 2026-07-11
EFY9041 EasyFly 4 2026-06-09
EFY9040 EasyFly 4 2026-06-09
EFY7838 EasyFly 4 2026-04-23
EFY9126 EasyFly 3 2026-05-23
EFY9107 EasyFly 3 2026-06-08
EFY9106 - 3 2026-07-13
EFY9052 - 3 2026-06-19
EFY9048 EasyFly 3 2026-06-13
EFY9017 EasyFly 3 2026-06-08
EFY8950 - 3 2026-06-19
EFY9113 - 2 2026-06-15
EFY9104 EasyFly 2 2026-05-22
EFY9053 - 2 2026-06-19
EFY9049 EasyFly 2 2026-06-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 EFY9054 - Jul 14, 18:00 UTCJul 14, 18:30 UTC30m
2026-07-14 EFY8947 - Jul 14, 15:45 UTCJul 14, 15:50 UTC5m
2026-07-14 EFY8946 - Jul 14, 13:35 UTCJul 14, 13:45 UTC10m
2026-07-14 EFY8971 - Jul 14, 12:50 UTCJul 14, 13:00 UTC10m
2026-07-14 EFY8970 - Jul 14, 11:15 UTCJul 14, 11:25 UTC10m
2026-07-13 EFY8989 - Jul 13, 22:05 UTCJul 13, 22:15 UTC10m
2026-07-13 EFY8988 - Jul 13, 20:05 UTCJul 13, 20:15 UTC10m
2026-07-13 EFY8976 - Jul 13, 17:40 UTCJul 13, 17:50 UTC10m
2026-07-13 EFY9106 BOG → EOH Jul 13, 13:35 UTCJul 13, 14:15 UTC40m
2026-07-11 EFY9131 EOH → BOG Jul 11, 22:20 UTCJul 11, 23:05 UTC45m
2026-07-11 EFY9130 BOG → EOH Jul 11, 20:50 UTCJul 11, 21:30 UTC40m
2026-07-11 EFY9045 - Jul 11, 18:50 UTCJul 11, 19:10 UTC20m
2026-07-09 EFY9011 - Jul 9, 16:20 UTCJul 9, 16:50 UTC30m
2026-07-09 EFY9010 - Jul 9, 13:45 UTCJul 9, 14:00 UTC15m
2026-07-09 EFY9109 - Jul 9, 11:50 UTCJul 9, 12:30 UTC40m
2026-07-07 EFY9128 - Jul 7, 21:30 UTCJul 7, 21:45 UTC15m
2026-07-07 EFY9127 - Jul 7, 20:10 UTCJul 7, 20:25 UTC15m
2026-07-07 EFY9110 BOG → EOH Jul 7, 13:10 UTCJul 7, 13:25 UTC15m
2026-07-06 EFY9114 - Jul 6, 16:45 UTCJul 6, 17:05 UTC20m
2026-07-06 EFY9131 - Jul 6, 01:20 UTCJul 6, 01:40 UTC20m
2026-06-20 EFY9081 EOH → EOH Jun 20, 20:05 UTCJun 20, 20:09 UTC5m
2026-06-19 EFY9128 - Jun 19, 21:59 UTCJun 19, 22:09 UTC10m
2026-06-19 EFY9127 EOH → BOG Jun 19, 19:49 UTCJun 19, 20:29 UTC40m
2026-06-19 EFY8950 - Jun 19, 17:34 UTCJun 19, 17:44 UTC10m
2026-06-19 EFY9053 - Jun 19, 16:19 UTCJun 19, 16:29 UTC10m
2026-06-19 EFY9052 - Jun 19, 14:54 UTCJun 19, 15:04 UTC10m
2026-06-19 EFY9110 BOG → EOH Jun 19, 13:29 UTCJun 19, 14:09 UTC40m
2026-06-19 EFY9109 - Jun 19, 11:24 UTCJun 19, 12:09 UTC45m
2026-06-18 EFY9128 - Jun 18, 21:40 UTCJun 18, 22:15 UTC35m
2026-06-18 EFY9127 EOH → BOG Jun 18, 19:50 UTCJun 18, 20:30 UTC40m
2026-06-18 EFY8950 - Jun 18, 17:45 UTCJun 18, 17:50 UTC5m
2026-06-18 EFY9053 - Jun 18, 15:40 UTCJun 18, 15:50 UTC10m
2026-06-18 EFY9052 - Jun 18, 14:20 UTCJun 18, 14:35 UTC15m
2026-06-18 EFY9110 BOG → EOH Jun 18, 13:05 UTCJun 18, 13:40 UTC35m
2026-06-18 EFY9109 - Jun 18, 11:25 UTCJun 18, 12:10 UTC45m
2026-06-17 EFY9128 - Jun 17, 22:00 UTCJun 17, 22:30 UTC30m
2026-06-17 EFY9127 - Jun 17, 19:50 UTCJun 17, 20:35 UTC45m
2026-06-17 EFY8949 - Jun 17, 17:50 UTCJun 17, 17:55 UTC5m
2026-06-17 EFY8948 - Jun 17, 15:25 UTCJun 17, 15:30 UTC5m
2026-06-17 EFY9110 BOG → EOH Jun 17, 13:15 UTCJun 17, 13:55 UTC40m
2026-06-17 EFY9109 EOH → BOG Jun 17, 11:15 UTCJun 17, 12:00 UTC45m
2026-06-16 EFY9127 - Jun 16, 20:05 UTCJun 16, 20:15 UTC10m
2026-06-16 EFY8951 - Jun 16, 19:15 UTCJun 16, 19:25 UTC10m
2026-06-16 EFY8950 - Jun 16, 17:30 UTCJun 16, 17:40 UTC10m
2026-06-16 EFY9052 - Jun 16, 14:15 UTCJun 16, 14:25 UTC10m
2026-06-16 EFY9110 BOG → EOH Jun 16, 13:34 UTCJun 16, 13:44 UTC10m
2026-06-16 EFY9109 - Jun 16, 11:20 UTCJun 16, 11:35 UTC15m
2026-06-15 EFY9128 BOG → EOH Jun 15, 21:55 UTCJun 15, 22:15 UTC20m
2026-06-15 EFY9127 - Jun 15, 20:54 UTCJun 15, 21:09 UTC15m
2026-06-15 EFY9114 BOG → EOH Jun 15, 15:40 UTCJun 15, 15:59 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-5479 page for operator, model, and routing details .

Mode-S 0ACCCB frequently asked

What is Mode-S code 0ACCCB?
0ACCCB is an ICAO 24-bit transponder address. Allocated to Costa Rica. Assigned to HK-5479.
Where is Mode-S 0ACCCB registered?
Mode-S code 0ACCCB 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 0ACCCB broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 0ACCCB, octal 02546313, decimal 707,787.
What flights does 0ACCCB operate?
Mode-S 0ACCCB has broadcast 20 distinct callsigns, including EFY9127, EFY9128, EFY9110, EFY9109, EFY9114.