Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

DDB9F0

ICAO 24-bit transponder address

Hex
DDB9F0
Octal
67334760
Decimal
14,531,056
No current signal · last broadcast 25d ago
Flights observed
3
Distinct callsigns
3
Country
-
Last broadcast
25d ago

Last known position

Most recent position reported by Mode-S DDB9F0.

Callsign history 3 distinct

Callsign Airline Flights Last seen
KAYI07 - 1 2026-06-22
KAYI05 - 1 2026-06-15
KAYI04 - 1 2026-06-16

Recent flights last 3

DateFlightRouteTakeoffLandingDuration
2026-06-22 KAYI07 - Jun 22, 10:00 UTCJun 22, 13:29 UTC3h 30m
2026-06-16 KAYI04 - Jun 16, 16:35 UTCJun 16, 18:39 UTC2h 5m
2026-06-15 KAYI05 - Jun 15, 16:55 UTCJun 15, 17:15 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.

Mode-S DDB9F0 frequently asked

What is Mode-S code DDB9F0?
DDB9F0 is an ICAO 24-bit transponder address.
Is DDB9F0 broadcasting right now?
No active broadcast right now. Last signal was 25d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex DDB9F0, octal 67334760, decimal 14,531,056.
What flights does DDB9F0 operate?
Mode-S DDB9F0 has broadcast 3 distinct callsigns, including KAYI07, KAYI05, KAYI04.