Apparatus

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sensors Mode-S transponder

0ACA80

ICAO 24-bit transponder address · allocated to Costa Rica

Currently assigned to HK-5399 · ATR-72-600

Hex
0ACA80
Octal
02545200
Decimal
707,200
Country
CR
Tail
HK-5399
Type
AT76
No current signal · last broadcast Jul 26, 21:10 UTC
Flights observed
229
Distinct callsigns
20
Country
CR
Last broadcast
Jul 26, 21:10 UTC

Last known position

Most recent position reported by Mode-S 0ACA80.

Country allocation

The ICAO 24-bit address 0ACA80 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
NSE8882 - 12 2026-07-12
NSE8883 - 11 2026-07-12
NSE8604 - 7 2026-07-07
NSE8753 - 6 2026-07-16
NSE8686 - 6 2026-07-15
NSE8752 - 5 2026-07-13
NSE8741 - 5 2026-07-16
NSE8720 - 5 2026-07-17
NSE8685 - 5 2026-07-15
NSE8660 SATENA 5 2026-07-24
NSE8903 SATENA 4 2026-05-18
NSE8902 SATENA 4 2026-05-18
NSE8887 - 4 2026-06-18
NSE8816 SATENA 4 2026-07-24
NSE8740 - 4 2026-07-16
NSE8710 - 4 2026-07-13
NSE8605 - 4 2026-07-09
NSE8006 SATENA 4 2026-07-24
NSE6761 - 4 2026-07-22
NSE6760 SATENA 4 2026-07-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 NSE8616 BOG → EOH Jul 26, 20:30 UTCJul 26, 21:10 UTC40m
2026-07-26 NSE8766 EOH → BOG Jul 26, 18:40 UTCJul 26, 19:30 UTC50m
2026-07-26 NSE8671 UIB → EOH Jul 26, 17:25 UTCJul 26, 17:35 UTC10m
2026-07-26 NSE8670 EOH → UIB Jul 26, 15:40 UTCJul 26, 15:50 UTC10m
2026-07-26 NSE8817 BAQ → EOH Jul 26, 13:30 UTCJul 26, 14:45 UTC1h 15m
2026-07-25 NSE6753 VUP → BAQ Jul 25, 16:15 UTCJul 25, 16:35 UTC20m
2026-07-25 NSE6752 BAQ → VUP Jul 25, 14:50 UTCJul 25, 15:15 UTC25m
2026-07-25 NSE6763 MTR → BAQ Jul 25, 13:40 UTCJul 25, 14:00 UTC20m
2026-07-25 NSE6762 BAQ → MTR Jul 25, 11:05 UTCJul 25, 11:35 UTC30m
2026-07-25 NSE8782 CUC → BAQ Jul 25, 00:00 UTCJul 25, 00:20 UTC20m
2026-07-24 NSE8761 BAQ → CUC Jul 24, 21:35 UTCJul 24, 22:05 UTC30m
2026-07-24 NSE8816 EOH → BAQ Jul 24, 20:00 UTCJul 24, 20:30 UTC30m
2026-07-24 NSE8816 EOH → BAQ Jul 24, 19:20 UTCJul 24, 19:30 UTC10m
2026-07-24 NSE8007 APO → EOH Jul 24, 18:20 UTCJul 24, 18:30 UTC10m
2026-07-24 NSE8006 EOH → APO Jul 24, 16:30 UTCJul 24, 16:40 UTC10m
2026-07-24 NSE8670 EOH → UIB Jul 24, 14:10 UTCJul 24, 14:15 UTC5m
2026-07-24 NSE8660 EOH → APO Jul 24, 11:25 UTCJul 24, 11:30 UTC5m
2026-07-23 NSE8679 UIB → EOH Jul 23, 21:55 UTCJul 23, 22:00 UTC5m
2026-07-23 NSE8876 EOH → UIB Jul 23, 20:20 UTCJul 23, 20:30 UTC10m
2026-07-23 NSE8662 - Jul 23, 17:25 UTCJul 23, 17:35 UTC10m
2026-07-23 NSE8671 UIB → EOH Jul 23, 16:20 UTCJul 23, 16:25 UTC5m
2026-07-23 NSE8670 EOH → UIB Jul 23, 14:50 UTCJul 23, 15:00 UTC10m
2026-07-23 NSE8660 EOH → APO Jul 23, 11:10 UTCJul 23, 11:20 UTC10m
2026-07-22 NSE8667 APO → EOH Jul 22, 22:15 UTCJul 22, 22:20 UTC5m
2026-07-22 NSE8006 EOH → APO Jul 22, 19:15 UTCJul 22, 19:25 UTC10m
2026-07-22 NSE6761 - Jul 22, 16:05 UTCJul 22, 16:40 UTC35m
2026-07-22 NSE6760 EOH → NVA Jul 22, 13:45 UTCJul 22, 14:20 UTC35m
2026-07-21 NSE8679 UIB → EOH Jul 21, 21:55 UTCJul 21, 22:00 UTC5m
2026-07-21 NSE8680 EOH → UIB Jul 21, 20:25 UTCJul 21, 20:35 UTC10m
2026-07-21 NSE8007 APO → EOH Jul 21, 19:10 UTCJul 21, 19:20 UTC10m
2026-07-21 NSE8006 EOH → APO Jul 21, 17:35 UTCJul 21, 17:45 UTC10m
2026-07-21 NSE6759 - Jul 21, 16:35 UTCJul 21, 16:50 UTC15m
2026-07-21 NSE6759 - Jul 21, 15:40 UTCJul 21, 16:00 UTC20m
2026-07-21 NSE6752 BAQ → VUP Jul 21, 14:05 UTCJul 21, 14:25 UTC20m
2026-07-21 NSE6763 MTR → BAQ Jul 21, 12:40 UTCJul 21, 13:05 UTC25m
2026-07-21 NSE6762 BAQ → MTR Jul 21, 11:05 UTCJul 21, 11:40 UTC35m
2026-07-21 NSE8782 CUC → BAQ Jul 21, 00:00 UTCJul 21, 00:25 UTC25m
2026-07-20 NSE8761 BAQ → CUC Jul 20, 21:40 UTCJul 20, 22:10 UTC30m
2026-07-20 NSE8816 - Jul 20, 19:15 UTCJul 20, 20:25 UTC1h 10m
2026-07-20 NSE6761 - Jul 20, 16:25 UTCJul 20, 17:00 UTC35m
2026-07-20 NSE6760 EOH → NVA Jul 20, 14:20 UTCJul 20, 14:50 UTC30m
2026-07-20 NSE8661 - Jul 20, 12:45 UTCJul 20, 12:55 UTC10m
2026-07-20 NSE8660 EOH → APO Jul 20, 11:05 UTCJul 20, 11:10 UTC5m
2026-07-19 NSE8680 EOH → UIB Jul 19, 20:00 UTCJul 19, 20:05 UTC5m
2026-07-19 NSE6759 - Jul 19, 17:55 UTCJul 19, 18:55 UTC1h 0m
2026-07-19 NSE8661 - Jul 19, 14:00 UTCJul 19, 14:10 UTC10m
2026-07-19 NSE8660 EOH → APO Jul 19, 12:20 UTCJul 19, 12:25 UTC5m
2026-07-18 NSE8678 EOH → UIB Jul 18, 19:15 UTCJul 18, 19:25 UTC10m
2026-07-18 NSE8006 EOH → APO Jul 18, 16:20 UTCJul 18, 16:25 UTC5m
2026-07-18 NSE8661 - Jul 18, 14:25 UTCJul 18, 14:35 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-5399 page for operator, model, and routing details .

Mode-S 0ACA80 frequently asked

What is Mode-S code 0ACA80?
0ACA80 is an ICAO 24-bit transponder address. Allocated to Costa Rica. Assigned to HK-5399.
Where is Mode-S 0ACA80 registered?
Mode-S code 0ACA80 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 0ACA80 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 0ACA80, octal 02545200, decimal 707,200.
What flights does 0ACA80 operate?
Mode-S 0ACA80 has broadcast 20 distinct callsigns, including NSE8882, NSE8883, NSE8604, NSE8753, NSE8686.