sensors Mode-S transponder

0AC9DE

ICAO 24-bit transponder address · allocated to Costa Rica

Currently assigned to HK-5360 · AIRBUS A-320neo

Hex
0AC9DE
Octal
02544736
Decimal
707,038
Country
CR
Tail
HK-5360
Type
A20N
Broadcasting now · callsign AVA218 · 35,975 ft
Flights observed
287
Distinct callsigns
20
Country
CR
Last broadcast
30m ago

Current position

0AC9DE is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 0AC9DE 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
AVA217 - 11 2026-07-13
AVA218 - 9 2026-07-14
AVA021 Avianca - Aerovias Nacionales de Colombia, S.A. 9 2026-06-21
AVA261 - 7 2026-07-10
AVA240 - 7 2026-07-11
AVA116 - 7 2026-07-10
AVA020 - 7 2026-06-21
AVA258 - 6 2026-07-04
AVA260 - 5 2026-07-10
AVA149 - 5 2026-06-18
AVA148 - 5 2026-06-18
AVA267 Avianca - Aerovias Nacionales de Colombia, S.A. 4 2026-06-01
AVA265 - 4 2026-06-24
AVA264 - 4 2026-06-24
AVA257 - 4 2026-07-12
AVA256 - 4 2026-07-11
AVA249 Avianca - Aerovias Nacionales de Colombia, S.A. 4 2026-05-23
AVA241 - 4 2026-07-10
AVA115 - 4 2026-07-09
AVA093 - 4 2026-07-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AVA218 - Jul 14, 05:20 UTCJul 14, 05:30 UTC10m
2026-07-13 AVA217 - Jul 13, 22:40 UTCJul 14, 03:40 UTC5h 0m
2026-07-13 AVA8442 - Jul 13, 15:25 UTCJul 13, 15:55 UTC30m
2026-07-13 AVA207 - Jul 13, 08:55 UTCJul 13, 14:00 UTC5h 5m
2026-07-13 AVA206 - Jul 13, 01:05 UTCJul 13, 06:20 UTC5h 15m
2026-07-12 AVA8443 - Jul 12, 23:00 UTCJul 12, 23:30 UTC30m
2026-07-12 AVA257 - Jul 12, 18:10 UTCJul 12, 21:00 UTC2h 50m
2026-07-12 AVA268 - Jul 12, 14:45 UTCJul 12, 16:25 UTC1h 40m
2026-07-12 AVA112 - Jul 12, 05:40 UTCJul 12, 11:05 UTC5h 25m
2026-07-11 AVA111 - Jul 11, 22:20 UTCJul 12, 04:25 UTC6h 5m
2026-07-11 AVA269 - Jul 11, 18:10 UTCJul 11, 20:35 UTC2h 25m
2026-07-11 AVA256 BOG → CUN Jul 11, 13:30 UTCJul 11, 16:35 UTC3h 5m
2026-07-11 AVA240 - Jul 11, 09:50 UTCJul 11, 10:15 UTC25m
2026-07-10 AVA241 - Jul 10, 23:10 UTCJul 10, 23:35 UTC25m
2026-07-10 AVA260 - Jul 10, 10:45 UTCJul 10, 17:10 UTC6h 25m
2026-07-10 AVA261 - Jul 10, 04:30 UTCJul 10, 08:45 UTC4h 15m
2026-07-10 AVA261 - Jul 10, 03:30 UTCJul 10, 03:45 UTC15m
2026-07-10 AVA116 - Jul 10, 00:55 UTCJul 10, 01:15 UTC20m
2026-07-09 AVA116 - Jul 9, 19:55 UTCJul 9, 20:05 UTC10m
2026-07-09 AVA115 - Jul 9, 12:50 UTCJul 9, 14:20 UTC1h 30m
2026-07-09 AVA240 - Jul 9, 08:20 UTCJul 9, 09:00 UTC40m
2026-07-09 AVA240 - Jul 9, 04:45 UTCJul 9, 04:55 UTC10m
2026-07-08 AVA241 - Jul 8, 23:00 UTCJul 8, 23:25 UTC25m
2026-07-08 AVA212 - Jul 8, 11:45 UTCJul 8, 15:35 UTC3h 50m
2026-07-08 AVA213 - Jul 8, 04:20 UTCJul 8, 07:35 UTC3h 15m
2026-07-08 AVA251 SDQ → BOG Jul 8, 01:05 UTCJul 8, 01:20 UTC15m
2026-07-07 AVA250 - Jul 7, 19:40 UTCJul 8, 00:05 UTC4h 25m
2026-07-07 AVA260 - Jul 7, 11:30 UTCJul 7, 17:30 UTC6h 0m
2026-07-07 AVA261 - Jul 7, 05:40 UTCJul 7, 09:55 UTC4h 15m
2026-07-06 AVA257 MQU → BOG Jul 6, 21:45 UTCJul 6, 22:00 UTC15m
2026-07-06 AVA257 - Jul 6, 19:05 UTCJul 6, 20:35 UTC1h 30m
2026-07-06 AVA112 - Jul 6, 06:50 UTCJul 6, 17:40 UTC10h 50m
2026-07-05 AVA111 CUN → EZE Jul 5, 17:50 UTCJul 6, 03:55 UTC10h 5m
2026-07-04 AVA256 - Jul 4, 23:05 UTCJul 5, 16:15 UTC17h 10m
2026-07-04 AVA258 - Jul 4, 21:00 UTCJul 4, 21:10 UTC10m
2026-07-04 AVA258 - Jul 4, 20:00 UTCJul 4, 20:15 UTC15m
2026-07-04 AVA093 - Jul 4, 15:55 UTCJul 4, 16:15 UTC20m
2026-07-04 AVA240 - Jul 4, 08:40 UTCJul 4, 09:10 UTC30m
2026-07-04 AVA240 - Jul 4, 04:50 UTCJul 4, 05:00 UTC10m
2026-07-03 AVA005 - Jul 3, 12:50 UTCJul 3, 13:15 UTC25m
2026-07-03 AVA008 - Jul 3, 07:30 UTCJul 3, 07:55 UTC25m
2026-07-02 AVA184 GRU → BOG Jul 2, 21:15 UTCJul 3, 01:35 UTC4h 20m
2026-07-02 AVA185 - Jul 2, 04:10 UTCJul 2, 19:20 UTC15h 10m
2026-07-01 AVA185 - Jul 1, 21:35 UTCJul 2, 19:20 UTC21h 45m
2026-07-01 AVA185 - Jul 1, 19:50 UTCJul 2, 19:20 UTC23h 30m
2026-07-01 AVA246 - Jul 1, 16:05 UTCJul 1, 18:00 UTC1h 55m
2026-06-30 AVA224 - Jun 30, 23:40 UTCJul 1, 10:05 UTC10h 25m
2026-06-30 AVA224 - Jun 30, 14:35 UTCJul 1, 10:05 UTC19h 30m
2026-06-29 AVA260 - Jun 29, 10:34 UTCJun 29, 15:14 UTC4h 40m
2026-06-29 AVA261 - Jun 29, 04:14 UTCJun 29, 08:35 UTC4h 20m

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-5360 page for operator, model, and routing details .

Mode-S 0AC9DE frequently asked

What is Mode-S code 0AC9DE?
0AC9DE is an ICAO 24-bit transponder address. Allocated to Costa Rica. Assigned to HK-5360.
Where is Mode-S 0AC9DE registered?
Mode-S code 0AC9DE 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 0AC9DE broadcasting right now?
Yes. Mode-S 0AC9DE is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 0AC9DE, octal 02544736, decimal 707,038.
What flights does 0AC9DE operate?
Mode-S 0AC9DE has broadcast 20 distinct callsigns, including AVA217, AVA218, AVA021, AVA261, AVA240.