Apparatus

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sensors Mode-S transponder

0ACCD9

ICAO 24-bit transponder address · allocated to Costa Rica

Hex
0ACCD9
Octal
02546331
Decimal
707,801
Country
CR
No current signal · last broadcast 6d ago
Flights observed
61
Distinct callsigns
20
Country
CR
Last broadcast
6d ago

Last known position

Most recent position reported by Mode-S 0ACCD9.

Country allocation

The ICAO 24-bit address 0ACCD9 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
HK5485X - 9 2026-05-16
NSE8883 - 4 2026-06-19
NSE8882 - 4 2026-06-19
NSE8753 SATENA 3 2026-06-09
NSE8752 SATENA 3 2026-06-09
NSE8619 - 3 2026-06-18
NSE8767 SATENA 2 2026-06-20
NSE8720 SATENA 2 2026-06-14
NSE8685 - 2 2026-06-15
NSE8902 SATENA 1 2026-06-01
NSE8887 - 1 2026-06-19
NSE8817 - 1 2026-06-17
NSE8816 - 1 2026-06-17
NSE8754 - 1 2026-06-19
NSE8743 - 1 2026-06-15
NSE8742 - 1 2026-06-15
NSE8737 - 1 2026-06-15
NSE8721 SATENA 1 2026-06-10
NSE8719 SATENA 1 2026-06-08
NSE8718 SATENA 1 2026-06-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-20 NSE8679 - Jun 20, 21:30 UTCJun 20, 21:40 UTC10m
2026-06-20 NSE8767 BOG → EOH Jun 20, 18:59 UTCJun 20, 19:09 UTC10m
2026-06-19 NSE8702 - Jun 19, 18:39 UTCJun 19, 18:54 UTC15m
2026-06-19 NSE8883 - Jun 19, 17:19 UTCJun 19, 17:34 UTC15m
2026-06-19 NSE8882 - Jun 19, 11:09 UTCJun 19, 11:24 UTC15m
2026-06-19 NSE8887 - Jun 19, 02:29 UTCJun 19, 02:50 UTC20m
2026-06-19 NSE8754 - Jun 19, 00:10 UTCJun 19, 00:24 UTC15m
2026-06-18 NSE8619 - Jun 18, 22:25 UTCJun 18, 23:05 UTC40m
2026-06-18 NSE8616 BOG → EOH Jun 18, 21:00 UTCJun 18, 21:40 UTC40m
2026-06-18 NSE8605 - Jun 18, 19:05 UTCJun 18, 19:50 UTC45m
2026-06-18 NSE6759 - Jun 18, 16:45 UTCJun 18, 17:00 UTC15m
2026-06-17 NSE8816 - Jun 17, 19:15 UTCJun 17, 19:20 UTC5m
2026-06-17 NSE8817 - Jun 17, 18:15 UTCJun 17, 18:25 UTC10m
2026-06-16 NSE8604 - Jun 16, 17:40 UTCJun 16, 17:49 UTC10m
2026-06-15 NSE8743 - Jun 15, 23:35 UTCJun 16, 00:00 UTC25m
2026-06-15 NSE8742 - Jun 15, 20:54 UTCJun 15, 21:14 UTC20m
2026-06-15 NSE8737 - Jun 15, 19:20 UTCJun 15, 19:39 UTC20m
2026-06-15 NSE8009 PUU → BOG Jun 15, 14:45 UTCJun 15, 15:04 UTC20m
2026-06-15 NSE8685 - Jun 15, 01:20 UTCJun 15, 01:35 UTC15m
2026-06-14 NSE8720 BOG → TCO Jun 14, 22:05 UTCJun 14, 22:20 UTC15m
2026-06-14 NSE8607 EOH → BOG Jun 14, 20:35 UTCJun 14, 20:50 UTC15m
2026-06-10 NSE8721 TCO → BOG Jun 10, 23:55 UTCJun 11, 00:15 UTC20m
2026-06-10 NSE8720 BOG → TCO Jun 10, 17:20 UTCJun 10, 17:30 UTC10m
2026-06-10 NSE8685 TCO → BOG Jun 10, 14:30 UTCJun 10, 14:50 UTC20m
2026-06-10 NSE8686 BOG → TCO Jun 10, 11:15 UTCJun 10, 11:30 UTC15m
2026-06-09 NSE8753 RVE → BOG Jun 9, 23:05 UTCJun 9, 23:25 UTC20m
2026-06-09 NSE8752 BOG → RVE Jun 9, 18:40 UTCJun 9, 18:55 UTC15m
2026-06-09 NSE8883 VVC → BOG Jun 9, 17:40 UTCJun 9, 17:55 UTC15m
2026-06-09 NSE8882 BOG → VVC Jun 9, 11:30 UTCJun 9, 11:45 UTC15m
2026-06-09 NSE8701 CZU → BOG Jun 9, 03:20 UTCJun 9, 03:45 UTC25m
2026-06-09 NSE8700 BOG → CZU Jun 9, 00:15 UTCJun 9, 00:40 UTC25m
2026-06-08 NSE8753 RVE → BOG Jun 8, 22:15 UTCJun 8, 23:15 UTC1h 0m
2026-06-08 NSE8752 BOG → RVE Jun 8, 19:50 UTCJun 8, 20:05 UTC15m
2026-06-08 NSE8719 TME → BOG Jun 8, 17:25 UTCJun 8, 17:45 UTC20m
2026-06-08 NSE8718 BOG → TME Jun 8, 15:25 UTCJun 8, 15:35 UTC10m
2026-06-08 NSE8711 AUC → BOG Jun 8, 13:45 UTCJun 8, 14:10 UTC25m
2026-06-08 NSE8710 BOG → AUC Jun 8, 11:00 UTCJun 8, 11:10 UTC10m
2026-06-07 NSE8883 VVC → BOG Jun 7, 22:15 UTCJun 7, 22:35 UTC20m
2026-06-07 NSE8882 BOG → VVC Jun 7, 11:00 UTCJun 7, 11:15 UTC15m
2026-06-06 NSE8619 EOH → BOG Jun 6, 22:50 UTCJun 6, 23:09 UTC20m
2026-06-06 NSE8767 BOG → EOH Jun 6, 18:19 UTCJun 6, 18:29 UTC10m
2026-06-06 NSE8753 RVE → BOG Jun 6, 16:30 UTCJun 6, 17:00 UTC30m
2026-06-06 NSE8752 BOG → RVE Jun 6, 11:14 UTCJun 6, 11:30 UTC15m
2026-06-06 NSE8703 PCR → BOG Jun 6, 00:00 UTCJun 6, 00:25 UTC25m
2026-06-05 NSE8883 VVC → BOG Jun 5, 18:15 UTCJun 5, 18:25 UTC10m
2026-06-05 NSE8882 BOG → VVC Jun 5, 12:20 UTCJun 5, 12:30 UTC10m
2026-06-01 NSE8902 BOG → PTX Jun 1, 16:35 UTCJun 1, 16:55 UTC20m
2026-06-01 NSE8647 - Jun 1, 14:50 UTCJun 1, 15:05 UTC15m
2026-05-31 NSE8619 EOH → BOG May 31, 22:50 UTCMay 31, 23:00 UTC10m
2026-05-31 NSE8606 BOG → EOH May 31, 18:35 UTCMay 31, 18:50 UTC15m

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.

Mode-S 0ACCD9 frequently asked

What is Mode-S code 0ACCD9?
0ACCD9 is an ICAO 24-bit transponder address. Allocated to Costa Rica.
Where is Mode-S 0ACCD9 registered?
Mode-S code 0ACCD9 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 0ACCD9 broadcasting right now?
No active broadcast right now. Last signal was 6d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 0ACCD9, octal 02546331, decimal 707,801.
What flights does 0ACCD9 operate?
Mode-S 0ACCD9 has broadcast 20 distinct callsigns, including HK5485X, NSE8883, NSE8882, NSE8753, NSE8752.