sensors Mode-S transponder

0C434A

ICAO 24-bit transponder address · allocated to Dominican Republic

Currently assigned to HI1089 · BOEING 737-700

Hex
0C434A
Octal
03041512
Decimal
803,658
Country
DO
Tail
HI1089
Type
B737
No current signal · last broadcast 1d ago
Flights observed
2
Distinct callsigns
2
Country
DO
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 0C434A.

Country allocation

The ICAO 24-bit address 0C434A 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 2 distinct

Callsign Airline Flights Last seen
SHH3914 - 1 2026-04-13
SHH3913 Airshare Holdings 1 2026-04-13

Recent flights last 2

DateFlightRouteTakeoffLandingDuration
2026-04-13 SHH3914 - Apr 13, 13:45 UTCApr 13, 14:15 UTC30m
2026-04-13 SHH3913 MIA → HAV Apr 13, 11:50 UTCApr 13, 12:15 UTC25m

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 HI1089 page for operator, model, and routing details .

Mode-S 0C434A frequently asked

What is Mode-S code 0C434A?
0C434A is an ICAO 24-bit transponder address. Allocated to Dominican Republic. Assigned to HI1089.
Where is Mode-S 0C434A registered?
Mode-S code 0C434A 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 0C434A broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 0C434A, octal 03041512, decimal 803,658.
What flights does 0C434A operate?
Mode-S 0C434A has broadcast 2 distinct callsigns, including SHH3914, SHH3913.