Apparatus

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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 2h ago
Flights observed
86
Distinct callsigns
18
Country
DO
Last broadcast
2h 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 18 distinct

Callsign Airline Flights Last seen
CEY171 - 16 2026-07-11
CEY172 - 13 2026-07-12
CEY162 Air Century 10 2026-06-29
CEY161 - 10 2026-06-29
CEY181 - 8 2026-07-14
CEY111 - 8 2026-07-13
CEY290 - 4 2026-07-04
CEY288 - 3 2026-06-27
CEY287 - 3 2026-07-11
CEY151 Air Century 2 2026-06-15
CEY112 Air Century 2 2026-07-03
CEY843 - 1 2026-04-18
CEY490 Air Century 1 2026-04-24
CEY289 - 1 2026-06-13
CEY283 - 1 2026-06-06
CEY282 Air Century 1 2026-06-28
CEY281 - 1 2026-05-02
CEY184 - 1 2026-04-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CEY181 - Jul 14, 11:30 UTCJul 14, 19:55 UTC8h 25m
2026-07-13 CEY111 - Jul 13, 11:20 UTCJul 13, 14:55 UTC3h 35m
2026-07-12 CEY172 - Jul 12, 13:35 UTCJul 12, 13:55 UTC20m
2026-07-11 CEY171 - Jul 11, 18:05 UTCJul 12, 12:20 UTC18h 15m
2026-07-11 CEY171 - Jul 11, 17:55 UTCJul 12, 12:20 UTC18h 25m
2026-07-11 CEY287 - Jul 11, 13:40 UTCJul 11, 13:50 UTC10m
2026-07-08 CEY172 - Jul 8, 13:30 UTCJul 8, 13:45 UTC15m
2026-07-08 CEY171 - Jul 8, 11:50 UTCJul 8, 12:35 UTC45m
2026-07-05 CEY172 - Jul 5, 13:30 UTCJul 5, 13:45 UTC15m
2026-07-05 CEY171 - Jul 5, 12:10 UTCJul 5, 12:35 UTC25m
2026-07-04 CEY290 - Jul 4, 17:25 UTCJul 5, 03:35 UTC10h 10m
2026-07-04 CEY287 - Jul 4, 13:25 UTCJul 4, 13:35 UTC10m
2026-07-03 CEY112 SCU → JBQ Jul 3, 13:50 UTCJul 3, 14:05 UTC15m
2026-06-30 CEY181 - Jun 30, 11:40 UTCJun 30, 19:55 UTC8h 15m
2026-06-29 CEY162 SXM → JBQ Jun 29, 19:05 UTCJun 29, 19:29 UTC25m
2026-06-29 CEY161 - Jun 29, 11:20 UTCJun 29, 16:39 UTC5h 20m
2026-06-28 CEY282 HAV → PUJ Jun 28, 19:09 UTCJun 28, 19:20 UTC10m
2026-06-28 CEY290 - Jun 28, 02:25 UTCJun 28, 02:34 UTC10m
2026-06-27 CEY288 - Jun 27, 18:15 UTCJun 27, 18:29 UTC15m
2026-06-22 CEY111 - Jun 22, 11:30 UTCJun 22, 11:44 UTC15m
2026-06-21 CEY172 AUA → JBQ Jun 21, 13:24 UTCJun 21, 13:44 UTC20m
2026-06-21 CEY171 JBQ → AUA Jun 21, 03:40 UTCJun 21, 12:19 UTC8h 40m
2026-06-20 CEY290 - Jun 20, 22:45 UTCJun 21, 01:55 UTC3h 10m
2026-06-20 CEY288 - Jun 20, 16:34 UTCJun 20, 16:59 UTC25m
2026-06-19 CEY161 - Jun 19, 11:34 UTCJun 19, 19:29 UTC7h 55m
2026-06-18 CEY181 JBQ → HAV Jun 18, 11:25 UTCJun 18, 20:05 UTC8h 40m
2026-06-17 CEY172 AUA → JBQ Jun 17, 15:10 UTCJun 17, 15:25 UTC15m
2026-06-17 CEY171 JBQ → AUA Jun 17, 13:45 UTCJun 17, 14:05 UTC20m
2026-06-16 CEY181 JBQ → HAV Jun 16, 11:20 UTCJun 16, 20:20 UTC9h 1m
2026-06-15 CEY162 SXM → JBQ Jun 15, 18:10 UTCJun 15, 18:29 UTC20m
2026-06-15 CEY161 - Jun 15, 15:59 UTCJun 15, 16:19 UTC20m
2026-06-15 CEY151 JBQ → CUR Jun 15, 11:54 UTCJun 15, 12:05 UTC10m
2026-06-14 CEY172 AUA → JBQ Jun 14, 13:40 UTCJun 14, 13:55 UTC15m
2026-06-14 CEY171 JBQ → AUA Jun 14, 12:30 UTCJun 14, 12:50 UTC20m
2026-06-14 CEY290 - Jun 14, 02:05 UTCJun 14, 02:30 UTC25m
2026-06-13 CEY289 - Jun 13, 23:00 UTCJun 13, 23:10 UTC10m
2026-06-13 CEY288 - Jun 13, 16:55 UTCJun 13, 17:20 UTC25m
2026-06-12 CEY162 SXM → JBQ Jun 12, 18:40 UTCJun 12, 19:05 UTC25m
2026-06-12 CEY161 JBQ → SXM Jun 12, 16:15 UTCJun 12, 16:35 UTC20m
2026-06-12 CEY111 JBQ → SCU Jun 12, 11:40 UTCJun 12, 14:40 UTC3h 0m
2026-06-08 CEY162 SXM → JBQ Jun 8, 17:50 UTCJun 8, 18:15 UTC25m
2026-06-08 CEY161 JBQ → SXM Jun 8, 13:30 UTCJun 8, 16:10 UTC2h 40m
2026-06-07 CEY172 AUA → JBQ Jun 7, 13:35 UTCJun 7, 13:50 UTC15m
2026-06-06 CEY171 JBQ → AUA Jun 6, 19:50 UTCJun 7, 12:50 UTC17h 0m
2026-06-06 CEY171 JBQ → AUA Jun 6, 16:39 UTCJun 7, 12:50 UTC20h 10m
2026-06-06 CEY283 - Jun 6, 12:10 UTCJun 7, 00:39 UTC12h 30m
2026-05-31 CEY172 AUA → JBQ May 31, 13:45 UTCMay 31, 14:05 UTC20m
2026-05-31 CEY171 JBQ → AUA May 31, 11:55 UTCMay 31, 12:20 UTC25m
2026-05-30 CEY171 JBQ → AUA May 30, 17:35 UTCMay 31, 12:20 UTC18h 45m
2026-05-30 CEY287 - May 30, 13:00 UTCMay 31, 12:00 UTC23h 0m

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 2h 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 18 distinct callsigns, including CEY171, CEY172, CEY162, CEY161, CEY181.