sensors Mode-S transponder

0C40C8

ICAO 24-bit transponder address · allocated to Dominican Republic

Currently assigned to HI1034 · BOMBARDIER Regional Jet CRJ-200

Hex
0C40C8
Octal
03040310
Decimal
803,016
Country
DO
Tail
HI1034
Type
CRJ2
No current signal · last broadcast 22h ago
Flights observed
36
Distinct callsigns
12
Country
DO
Last broadcast
22h ago

Last known position

Most recent position reported by Mode-S 0C40C8.

Country allocation

The ICAO 24-bit address 0C40C8 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 12 distinct

Callsign Airline Flights Last seen
CEY162 Air Century 6 2026-05-11
CEY172 Air Century 5 2026-05-13
CEY171 Air Century 5 2026-05-13
CEY161 Air Century 5 2026-05-11
CEY111 Air Century 5 2026-05-29
CEY181 Air Century 4 2026-05-26
CEY843 - 1 2026-04-18
CEY490 Air Century 1 2026-04-24
CEY281 - 1 2026-05-02
CEY184 - 1 2026-04-16
CEY151 Air Century 1 2026-05-04
CEY112 Air Century 1 2026-05-08

Recent flights last 36

DateFlightRouteTakeoffLandingDuration
2026-05-29 CEY111 JBQ → SCU May 29, 11:35 UTCMay 29, 14:10 UTC2h 35m
2026-05-26 CEY181 JBQ → HAV May 26, 11:24 UTCMay 26, 19:50 UTC8h 25m
2026-05-18 CEY111 JBQ → SCU May 18, 11:20 UTCMay 18, 14:05 UTC2h 45m
2026-05-15 CEY111 JBQ → SCU May 15, 11:15 UTCMay 15, 14:30 UTC3h 15m
2026-05-14 CEY181 JBQ → HAV May 14, 11:20 UTCMay 14, 19:50 UTC8h 30m
2026-05-13 CEY172 AUA → JBQ May 13, 13:31 UTCMay 13, 13:50 UTC20m
2026-05-13 CEY171 JBQ → AUA May 13, 12:00 UTCMay 13, 12:20 UTC20m
2026-05-11 CEY162 SXM → JBQ May 11, 18:00 UTCMay 11, 18:20 UTC20m
2026-05-11 CEY161 JBQ → SXM May 11, 15:35 UTCMay 11, 15:55 UTC20m
2026-05-11 CEY111 JBQ → SCU May 11, 11:15 UTCMay 11, 14:00 UTC2h 45m
2026-05-08 CEY112 SCU → JBQ May 8, 13:40 UTCMay 8, 13:50 UTC10m
2026-05-04 CEY162 SXM → JBQ May 4, 18:05 UTCMay 4, 18:25 UTC20m
2026-05-04 CEY161 JBQ → SXM May 4, 13:25 UTCMay 4, 16:00 UTC2h 35m
2026-05-04 CEY151 JBQ → CUR May 4, 12:05 UTCMay 4, 12:15 UTC10m
2026-05-03 CEY172 AUA → JBQ May 3, 13:20 UTCMay 3, 13:35 UTC15m
2026-05-03 CEY171 JBQ → AUA May 3, 12:00 UTCMay 3, 12:20 UTC20m
2026-05-02 CEY281 - May 2, 16:00 UTCMay 2, 23:15 UTC7h 15m
2026-05-01 CEY162 SXM → JBQ May 1, 18:45 UTCMay 1, 19:15 UTC30m
2026-05-01 CEY161 JBQ → SXM May 1, 13:30 UTCMay 1, 16:15 UTC2h 45m
2026-04-30 CEY181 JBQ → HAV Apr 30, 11:35 UTCApr 30, 19:50 UTC8h 15m
2026-04-29 CEY172 AUA → JBQ Apr 29, 13:30 UTCApr 29, 13:45 UTC15m
2026-04-29 CEY171 JBQ → AUA Apr 29, 12:05 UTCApr 29, 12:30 UTC25m
2026-04-24 CEY111 JBQ → SCU Apr 24, 11:15 UTCApr 24, 13:40 UTC2h 25m
2026-04-24 CEY490 PUJ → GEO Apr 24, 02:30 UTCApr 24, 06:25 UTC3h 55m
2026-04-22 CEY172 AUA → JBQ Apr 22, 13:25 UTCApr 22, 13:45 UTC20m
2026-04-22 CEY171 JBQ → AUA Apr 22, 11:55 UTCApr 22, 12:15 UTC20m
2026-04-18 CEY843 - Apr 18, 12:45 UTCApr 18, 16:25 UTC3h 40m
2026-04-17 CEY162 - Apr 17, 19:20 UTCApr 18, 16:25 UTC21h 5m
2026-04-17 CEY161 JBQ → SXM Apr 17, 15:25 UTCApr 17, 15:45 UTC20m
2026-04-16 CEY184 - Apr 16, 19:55 UTCApr 16, 20:05 UTC10m
2026-04-16 CEY181 - Apr 16, 11:20 UTCApr 16, 11:35 UTC15m
2026-04-15 CEY172 - Apr 15, 13:50 UTCApr 15, 14:05 UTC15m
2026-04-15 CEY171 - Apr 15, 12:40 UTCApr 15, 12:55 UTC15m
2026-04-13 CEY162 - Apr 13, 17:45 UTCApr 13, 18:10 UTC25m
2026-04-13 CEY162 - Apr 13, 15:50 UTCApr 13, 18:10 UTC2h 20m
2026-04-13 CEY161 JBQ → SXM Apr 13, 15:40 UTCApr 13, 16:00 UTC20m

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 HI1034 page for operator, model, and routing details .

Mode-S 0C40C8 frequently asked

What is Mode-S code 0C40C8?
0C40C8 is an ICAO 24-bit transponder address. Allocated to Dominican Republic. Assigned to HI1034.
Where is Mode-S 0C40C8 registered?
Mode-S code 0C40C8 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 0C40C8 broadcasting right now?
No active broadcast right now. Last signal was 22h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 0C40C8, octal 03040310, decimal 803,016.
What flights does 0C40C8 operate?
Mode-S 0C40C8 has broadcast 12 distinct callsigns, including CEY162, CEY172, CEY171, CEY161, CEY111.