sensors Mode-S transponder

AF9BA1

ICAO 24-bit transponder address

Currently assigned to 22-14539 · SIKORSKY UH-60 Black Hawk

Hex
AF9BA1
Octal
53715641
Decimal
11,508,641
Tail
22-14539
Type
H60
No current signal · last broadcast 1d ago
Flights observed
3
Distinct callsigns
3
Country
-
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S AF9BA1.

Callsign history 3 distinct

Callsign Airline Flights Last seen
JOLLY22 - 1 2026-04-15
JOLLY21 - 1 2026-04-16
JOLLY11 - 1 2026-04-17

Recent flights last 3

DateFlightRouteTakeoffLandingDuration
2026-04-17 JOLLY11 FOK → FOK Apr 17, 15:35 UTCApr 17, 15:45 UTC10m
2026-04-16 JOLLY21 - Apr 16, 00:15 UTCApr 16, 00:40 UTC25m
2026-04-15 JOLLY22 - Apr 15, 00:10 UTCApr 15, 00:25 UTC15m

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 22-14539 page for operator, model, and routing details .

Mode-S AF9BA1 frequently asked

What is Mode-S code AF9BA1?
AF9BA1 is an ICAO 24-bit transponder address. Assigned to 22-14539.
Is AF9BA1 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 AF9BA1, octal 53715641, decimal 11,508,641.
What flights does AF9BA1 operate?
Mode-S AF9BA1 has broadcast 3 distinct callsigns, including JOLLY22, JOLLY21, JOLLY11.