Apparatus

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sensors Mode-S transponder

0ACCC2

ICAO 24-bit transponder address · allocated to Costa Rica

Currently assigned to HK-5754 · ATR-42-600

Hex
0ACCC2
Octal
02546302
Decimal
707,778
Country
CR
Tail
HK-5754
Type
AT46
No current signal · last broadcast 3h ago
Flights observed
169
Distinct callsigns
20
Country
CR
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 0ACCC2.

Country allocation

The ICAO 24-bit address 0ACCC2 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
NSE8658 - 7 2026-06-16
NSE8601 - 7 2026-07-12
NSE8686 SATENA 6 2026-06-11
NSE8733 SATENA 5 2026-06-12
NSE8874 - 4 2026-07-13
NSE8777 SATENA 4 2026-06-18
NSE8776 SATENA 4 2026-06-18
NSE8767 SATENA 4 2026-07-09
NSE8766 SATENA 4 2026-05-29
NSE8737 SATENA 4 2026-05-27
NSE8602 - 4 2026-06-16
NSE8009 - 4 2026-06-19
NSE8903 SATENA 3 2026-06-09
NSE8898 - 3 2026-06-18
NSE8743 SATENA 3 2026-06-05
NSE8736 SATENA 3 2026-05-27
NSE8724 - 3 2026-07-12
NSE8719 SATENA 3 2026-05-22
NSE8718 SATENA 3 2026-05-22
NSE8711 - 3 2026-06-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 NSE8734 - Jul 13, 23:10 UTCJul 13, 23:45 UTC35m
2026-07-13 NSE8680 - Jul 13, 21:35 UTCJul 13, 21:45 UTC10m
2026-07-13 NSE8662 - Jul 13, 19:20 UTCJul 13, 19:30 UTC10m
2026-07-13 NSE7717 - Jul 13, 18:25 UTCJul 13, 18:45 UTC20m
2026-07-13 NSE8874 - Jul 13, 15:55 UTCJul 13, 16:15 UTC20m
2026-07-13 NSE8741 - Jul 13, 14:30 UTCJul 13, 14:55 UTC25m
2026-07-13 NSE8740 - Jul 13, 11:20 UTCJul 13, 11:40 UTC20m
2026-07-12 NSE8729 - Jul 12, 20:05 UTCJul 12, 20:45 UTC40m
2026-07-12 NSE7717 - Jul 12, 17:25 UTCJul 12, 17:35 UTC10m
2026-07-12 NSE7716 - Jul 12, 15:20 UTCJul 12, 15:25 UTC5m
2026-07-12 NSE8724 - Jul 12, 13:01 UTCJul 12, 13:30 UTC30m
2026-07-12 NSE8601 EOH → BOG Jul 12, 11:05 UTCJul 12, 11:45 UTC40m
2026-07-11 NSE8667 - Jul 11, 21:45 UTCJul 11, 21:55 UTC10m
2026-07-11 NSE8666 - Jul 11, 20:00 UTCJul 11, 20:05 UTC5m
2026-07-11 NSE8671 - Jul 11, 14:30 UTCJul 11, 14:35 UTC5m
2026-07-11 NSE8670 - Jul 11, 11:55 UTCJul 11, 12:05 UTC10m
2026-07-10 NSE8663 - Jul 10, 19:45 UTCJul 10, 19:55 UTC10m
2026-07-10 NSE8662 - Jul 10, 18:10 UTCJul 10, 18:20 UTC10m
2026-07-10 NSE8604 - Jul 10, 16:45 UTCJul 10, 17:25 UTC40m
2026-07-10 NSE8604 - Jul 10, 15:20 UTCJul 10, 15:45 UTC25m
2026-07-10 NSE8778 - Jul 10, 13:05 UTCJul 10, 13:25 UTC20m
2026-07-10 NSE8601 - Jul 10, 11:10 UTCJul 10, 11:45 UTC35m
2026-07-09 NSE6535 - Jul 9, 20:10 UTCJul 9, 20:50 UTC40m
2026-07-09 NSE6534 - Jul 9, 18:20 UTCJul 9, 19:05 UTC45m
2026-07-09 NSE8767 BOG → EOH Jul 9, 17:00 UTCJul 9, 17:35 UTC35m
2026-07-09 NSE6751 - Jul 9, 15:25 UTCJul 9, 15:50 UTC25m
2026-07-09 NSE6750 - Jul 9, 13:00 UTCJul 9, 13:30 UTC30m
2026-07-09 NSE8601 - Jul 9, 11:10 UTCJul 9, 11:55 UTC45m
2026-07-07 NSE6535 - Jul 7, 19:40 UTCJul 7, 20:00 UTC20m
2026-07-07 NSE6534 - Jul 7, 18:25 UTCJul 7, 18:35 UTC10m
2026-07-07 NSE8767 BOG → EOH Jul 7, 16:40 UTCJul 7, 16:55 UTC15m
2026-07-07 NSE8726 - Jul 7, 15:20 UTCJul 7, 15:25 UTC5m
2026-07-07 NSE8725 BOG → BUN Jul 7, 13:15 UTCJul 7, 13:30 UTC15m
2026-07-06 NSE8767 BOG → EOH Jul 6, 17:20 UTCJul 6, 17:40 UTC20m
2026-06-19 NSE8720 - Jun 19, 19:25 UTCJun 19, 19:45 UTC20m
2026-06-19 NSE8009 - Jun 19, 03:39 UTCJun 19, 04:00 UTC20m
2026-06-19 NSE7704 - Jun 19, 00:55 UTCJun 19, 01:10 UTC15m
2026-06-18 NSE8794 UIB → BOG Jun 18, 23:20 UTCJun 18, 23:35 UTC15m
2026-06-18 NSE8876 - Jun 18, 21:35 UTCJun 18, 21:45 UTC10m
2026-06-18 NSE8793 BOG → UIB Jun 18, 19:10 UTCJun 18, 19:30 UTC20m
2026-06-18 NSE8777 LQM → BOG Jun 18, 17:30 UTCJun 18, 17:50 UTC20m
2026-06-18 NSE8776 BOG → LQM Jun 18, 14:40 UTCJun 18, 15:00 UTC20m
2026-06-18 NSE8711 - Jun 18, 13:25 UTCJun 18, 13:50 UTC25m
2026-06-18 NSE8710 - Jun 18, 10:55 UTCJun 18, 11:10 UTC15m
2026-06-18 NSE8899 - Jun 18, 02:15 UTCJun 18, 02:55 UTC40m
2026-06-18 NSE8898 - Jun 18, 00:10 UTCJun 18, 00:55 UTC45m
2026-06-17 NSE8619 - Jun 17, 22:35 UTCJun 17, 22:50 UTC15m
2026-06-17 NSE8625 - Jun 17, 21:35 UTCJun 17, 21:40 UTC5m
2026-06-17 NSE8624 - Jun 17, 18:45 UTCJun 17, 19:35 UTC50m
2026-06-17 NSE8665 - Jun 17, 15:00 UTCJun 17, 15:10 UTC10m

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-5754 page for operator, model, and routing details .

Mode-S 0ACCC2 frequently asked

What is Mode-S code 0ACCC2?
0ACCC2 is an ICAO 24-bit transponder address. Allocated to Costa Rica. Assigned to HK-5754.
Where is Mode-S 0ACCC2 registered?
Mode-S code 0ACCC2 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 0ACCC2 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 0ACCC2, octal 02546302, decimal 707,778.
What flights does 0ACCC2 operate?
Mode-S 0ACCC2 has broadcast 20 distinct callsigns, including NSE8658, NSE8601, NSE8686, NSE8733, NSE8874.