sensors Mode-S transponder

0AC9E1

ICAO 24-bit transponder address · allocated to Costa Rica

Currently assigned to HK-5361 · AIRBUS A-320neo

Hex
0AC9E1
Octal
02544741
Decimal
707,041
Country
CR
Tail
HK-5361
Type
A20N
Broadcasting now · callsign AVA021 · 35,950 ft
Flights observed
135
Distinct callsigns
20
Country
CR
Last broadcast
28m ago

Current position

0AC9E1 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 0AC9E1 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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 AVA021 JFK → BOG May 30, 12:00 UTCMay 30, 12:15 UTC15m
2026-05-30 AVA020 BOG → JFK May 30, 04:30 UTCMay 30, 09:45 UTC5h 15m
2026-05-29 AVA037 FLL → BOG May 29, 22:35 UTCMay 29, 22:50 UTC15m
2026-05-29 AVA037 FLL → BOG May 29, 19:40 UTCMay 29, 20:15 UTC35m
2026-05-29 AVA036 BOG → FLL May 29, 14:25 UTCMay 29, 17:40 UTC3h 15m
2026-05-29 AVA248 GRU → BOG May 29, 06:50 UTCMay 29, 11:25 UTC4h 35m
2026-05-29 AVA249 BOG → GRU May 29, 00:10 UTCMay 29, 05:15 UTC5h 5m
2026-05-28 AVA9228 CLO → BOG May 28, 21:45 UTCMay 28, 22:15 UTC30m
2026-05-28 AVA9228 CLO → BOG May 28, 19:40 UTCMay 28, 20:15 UTC35m
2026-05-28 AVA8584 PSO → BOG May 28, 13:20 UTCMay 28, 16:10 UTC2h 50m
2026-05-28 AVA8421 BOG → CLO May 28, 03:30 UTCMay 28, 03:40 UTC10m
2026-05-28 AVA073 MEX → BOG May 28, 00:10 UTCMay 28, 00:25 UTC15m
2026-05-27 AVA073 MEX → BOG May 27, 20:20 UTCMay 27, 22:40 UTC2h 20m
2026-05-27 AVA072 BOG → MEX May 27, 13:55 UTCMay 27, 18:00 UTC4h 5m
2026-05-27 AVA160 GRU → BOG May 27, 05:29 UTCMay 27, 11:20 UTC5h 50m
2026-05-26 AVA161 BOG → GRU May 26, 17:50 UTCMay 27, 03:50 UTC10h 0m
2026-05-26 AVA268 MDE → CUN May 26, 14:45 UTCMay 26, 16:24 UTC1h 40m
2026-05-26 AVA112 EZE → MDE May 26, 05:54 UTCMay 26, 11:44 UTC5h 50m
2026-05-25 AVA111 MDE → EZE May 25, 18:10 UTCMay 26, 04:15 UTC10h 4m
2026-05-25 AVA256 BOG → CUN May 25, 13:40 UTCMay 25, 16:50 UTC3h 10m
2026-05-24 AVA052 LIM → BOG May 24, 23:00 UTCMay 24, 23:10 UTC10m
2026-05-24 AVA260 GIG → BOG May 24, 10:45 UTCMay 24, 21:10 UTC10h 25m
2026-05-24 AVA261 BOG → GIG May 24, 03:20 UTCMay 24, 08:50 UTC5h 30m
2026-05-23 AVA052 LIM → BOG May 23, 23:05 UTCMay 24, 01:35 UTC2h 30m
2026-05-23 AVA053 BOG → LIM May 23, 19:20 UTCMay 23, 21:20 UTC2h 0m
2026-05-23 AVA165 GUA → BOG May 23, 15:05 UTCMay 23, 15:25 UTC20m
2026-05-23 AVA165 GUA → BOG May 23, 12:30 UTCMay 23, 13:30 UTC1h 0m
2026-05-15 AVA034 CTG → MIA May 15, 16:00 UTCMay 15, 18:40 UTC2h 40m
2026-05-15 AVA198 GIG → BOG May 15, 04:55 UTCMay 15, 11:15 UTC6h 20m
2026-05-14 AVA197 BOG → GIG May 14, 21:50 UTCMay 15, 03:10 UTC5h 20m
2026-05-14 AVA227 BOS → BOG May 14, 18:30 UTCMay 14, 18:45 UTC15m
2026-05-14 AVA227 BOS → BOG May 14, 12:55 UTCMay 14, 16:00 UTC3h 5m
2026-05-14 AVA222 BOG → BOS May 14, 07:50 UTCMay 14, 10:35 UTC2h 45m
2026-05-13 AVA029 JFK → BOG May 13, 19:30 UTCMay 13, 20:20 UTC50m
2026-05-13 AVA028 BOG → MCO May 13, 16:25 UTCMay 13, 17:20 UTC55m
2026-05-11 AVA029 JFK → BOG May 11, 19:40 UTCMay 11, 20:25 UTC45m
2026-05-11 AVA028 BOG → MCO May 11, 16:35 UTCMay 11, 17:35 UTC1h 1m
2026-05-11 AVA160 GRU → BOG May 11, 05:50 UTCMay 11, 10:35 UTC4h 45m
2026-05-10 AVA161 BOG → GRU May 10, 10:05 UTCMay 11, 03:20 UTC17h 15m
2026-05-10 AVA161 BOG → GRU May 10, 06:20 UTCMay 11, 03:20 UTC21h 0m
2026-05-10 AVA161 BOG → GRU May 10, 06:10 UTCMay 11, 03:20 UTC21h 10m
2026-05-09 AVA111 MDE → EZE May 9, 14:55 UTCMay 10, 04:29 UTC13h 35m
2026-05-08 AVA116 SCL → BOG May 8, 23:15 UTCMay 9, 19:14 UTC20h 0m
2026-05-08 AVA116 SCL → BOG May 8, 20:00 UTCMay 8, 20:10 UTC10m
2026-05-08 AVA201 YUL → BOG May 8, 03:14 UTCMay 8, 14:55 UTC11h 40m
2026-05-07 AVA200 BOG → YUL May 7, 22:00 UTCMay 8, 01:14 UTC3h 14m
2026-05-07 AVA260 GIG → BOG May 7, 10:45 UTCMay 7, 13:30 UTC2h 45m
2026-05-06 AVA261 BOG → GIG May 6, 20:30 UTCMay 7, 09:15 UTC12h 45m
2026-05-06 AVA188 BOG → DFW May 6, 17:05 UTCMay 6, 18:20 UTC1h 14m
2026-05-05 AVA188 BOG → DFW May 5, 22:45 UTCMay 6, 18:20 UTC19h 34m

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-5361 page for operator, model, and routing details .

Mode-S 0AC9E1 frequently asked

What is Mode-S code 0AC9E1?
0AC9E1 is an ICAO 24-bit transponder address. Allocated to Costa Rica. Assigned to HK-5361.
Where is Mode-S 0AC9E1 registered?
Mode-S code 0AC9E1 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 0AC9E1 broadcasting right now?
Yes. Mode-S 0AC9E1 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 0AC9E1, octal 02544741, decimal 707,041.
What flights does 0AC9E1 operate?
Mode-S 0AC9E1 has broadcast 20 distinct callsigns, including AVA161, AVA160, AVA073, AVA198, AVA197.