sensors Mode-S transponder

0C43B9

ICAO 24-bit transponder address · allocated to Dominican Republic

Hex
0C43B9
Octal
03041671
Decimal
803,769
Country
DO
No current signal · last broadcast 2h ago
Flights observed
37
Distinct callsigns
13
Country
DO
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 0C43B9.

Country allocation

The ICAO 24-bit address 0C43B9 falls within the block assigned to Dominican Republic (DO) by ICAO Annex 10, Volume III. Every aircraft registered in Dominican Republic 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 13 distinct

Callsign Airline Flights Last seen
DWI5974 - 6 2026-06-18
DWI6021 - 4 2026-06-16
BOE123 - 4 2026-05-01
DWI6087 - 3 2026-06-14
DWI6086 - 3 2026-06-13
DWI6020 - 3 2026-06-15
DWI5862 - 3 2026-06-16
BOE056 - 3 2026-05-22
DWI6088 Arajet 2 2026-06-18
DWI6080 Arajet 2 2026-06-09
DWI5975 - 2 2026-06-19
DWI5863 Arajet 1 2026-06-17
DWI1142 Arajet 1 2026-05-30

Recent flights last 37

DateFlightRouteTakeoffLandingDuration
2026-06-19 DWI5975 - Jun 19, 11:20 UTCJun 19, 23:44 UTC12h 25m
2026-06-18 DWI5974 - Jun 18, 15:00 UTCJun 19, 04:19 UTC13h 19m
2026-06-18 DWI6088 PUJ → GRU Jun 18, 06:45 UTCJun 18, 12:05 UTC5h 20m
2026-06-17 DWI6088 PUJ → GRU Jun 17, 12:20 UTCJun 18, 12:05 UTC23h 45m
2026-06-17 DWI5863 YYZ → PUJ Jun 17, 10:50 UTCJun 18, 10:15 UTC23h 25m
2026-06-16 DWI5862 - Jun 16, 08:39 UTCJun 17, 03:50 UTC19h 11m
2026-06-16 DWI5862 - Jun 16, 06:20 UTCJun 17, 03:50 UTC21h 31m
2026-06-16 DWI6021 - Jun 16, 04:20 UTCJun 17, 03:50 UTC23h 31m
2026-06-15 DWI6020 - Jun 15, 11:10 UTCJun 16, 01:40 UTC14h 30m
2026-06-14 DWI6087 - Jun 14, 08:20 UTCJun 15, 03:40 UTC19h 19m
2026-06-14 DWI6087 - Jun 14, 07:50 UTCJun 15, 03:40 UTC19h 50m
2026-06-13 DWI6086 - Jun 13, 17:45 UTCJun 14, 06:05 UTC12h 20m
2026-06-13 DWI6021 - Jun 13, 03:25 UTCJun 13, 16:05 UTC12h 39m
2026-06-12 DWI6020 PUJ → GRU Jun 12, 11:20 UTCJun 13, 01:20 UTC14h 0m
2026-06-11 DWI5974 PUJ → YUL Jun 11, 09:05 UTCJun 12, 04:10 UTC19h 6m
2026-06-11 DWI5974 PUJ → YUL Jun 11, 06:20 UTCJun 12, 04:10 UTC21h 51m
2026-06-11 DWI6021 - Jun 11, 04:20 UTCJun 12, 04:10 UTC23h 51m
2026-06-10 DWI6020 PUJ → GRU Jun 10, 10:55 UTCJun 11, 01:20 UTC14h 25m
2026-06-09 DWI5862 PUJ → YYZ Jun 9, 14:20 UTCJun 10, 04:10 UTC13h 50m
2026-06-09 DWI6080 PUJ → GRU Jun 9, 06:10 UTCJun 9, 11:15 UTC5h 5m
2026-06-08 DWI6080 PUJ → GRU Jun 8, 12:20 UTCJun 9, 11:15 UTC22h 55m
2026-06-08 DWI5975 YUL → PUJ Jun 8, 11:15 UTCJun 9, 09:50 UTC22h 35m
2026-06-07 DWI5974 PUJ → YUL Jun 7, 12:25 UTCJun 8, 05:10 UTC16h 45m
2026-06-07 DWI5974 PUJ → YUL Jun 7, 08:20 UTCJun 8, 05:10 UTC20h 50m
2026-06-07 DWI5974 PUJ → YUL Jun 7, 07:50 UTCJun 8, 05:10 UTC21h 20m
2026-06-06 DWI6086 PUJ → GRU Jun 6, 18:29 UTCJun 7, 06:15 UTC11h 45m
2026-06-06 DWI6021 - Jun 6, 03:20 UTCJun 6, 16:24 UTC13h 5m
2026-06-05 DWI6087 GRU → PUJ Jun 5, 07:45 UTCJun 6, 01:25 UTC17h 40m
2026-06-05 DWI6086 PUJ → GRU Jun 5, 00:55 UTCJun 5, 06:00 UTC5h 5m
2026-05-30 DWI1142 PAE → STI May 30, 09:20 UTCMay 30, 14:55 UTC5h 35m
2026-05-22 BOE056 - May 22, 16:40 UTCMay 22, 18:45 UTC2h 5m
2026-05-15 BOE056 - May 15, 19:45 UTCMay 15, 22:05 UTC2h 20m
2026-05-05 BOE056 - May 5, 18:50 UTCMay 5, 21:55 UTC3h 5m
2026-05-01 BOE123 RNT → RNT May 1, 04:00 UTCMay 1, 04:10 UTC10m
2026-05-01 BOE123 RNT → RNT May 1, 03:40 UTCMay 1, 03:55 UTC15m
2026-05-01 BOE123 RNT → RNT May 1, 03:15 UTCMay 1, 03:35 UTC20m
2026-05-01 BOE123 RNT → RNT May 1, 02:55 UTCMay 1, 03:05 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.

Mode-S 0C43B9 frequently asked

What is Mode-S code 0C43B9?
0C43B9 is an ICAO 24-bit transponder address. Allocated to Dominican Republic.
Where is Mode-S 0C43B9 registered?
Mode-S code 0C43B9 is allocated to Dominican Republic (DO). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 0C43B9 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 0C43B9, octal 03041671, decimal 803,769.
What flights does 0C43B9 operate?
Mode-S 0C43B9 has broadcast 13 distinct callsigns, including DWI5974, DWI6021, BOE123, DWI6087, DWI6086.