sensors Mode-S transponder

AC9B5D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N911LA · CESSNA 172R Cutlass RG · operated by MINDY LIMITED LLC

Hex
AC9B5D
Octal
53115535
Decimal
11,311,965
Country
US
Tail
N911LA
Type
C72R
No current signal · last broadcast 4h ago
Flights observed
36
Distinct callsigns
1
Country
US
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S AC9B5D.

Country allocation

The ICAO 24-bit address AC9B5D falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States 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 1 distinct

Callsign Airline Flights Last seen
N911LA - 36 2026-05-08

Recent flights last 36

DateFlightRouteTakeoffLandingDuration
2026-05-08 N911LA - May 8, 22:25 UTCMay 8, 23:35 UTC1h 10m
2026-05-08 N911LA - May 8, 20:00 UTCMay 8, 20:15 UTC15m
2026-05-08 N911LA - May 8, 18:00 UTCMay 8, 18:55 UTC55m
2026-05-08 N911LA - May 8, 15:20 UTCMay 8, 16:35 UTC1h 15m
2026-05-07 N911LA - May 7, 17:45 UTCMay 7, 18:40 UTC55m
2026-05-07 N911LA - May 7, 15:30 UTCMay 7, 16:30 UTC1h 0m
2026-05-07 N911LA - May 7, 14:20 UTCMay 7, 14:30 UTC10m
2026-05-07 N911LA - May 7, 13:20 UTCMay 7, 13:30 UTC10m
2026-05-06 N911LA - May 6, 19:25 UTCMay 6, 20:05 UTC40m
2026-05-06 N911LA - May 6, 17:25 UTCMay 6, 18:20 UTC54m
2026-05-06 N911LA - May 6, 15:25 UTCMay 6, 16:30 UTC1h 5m
2026-05-05 N911LA - May 5, 19:45 UTCMay 5, 20:25 UTC40m
2026-05-05 N911LA - May 5, 18:35 UTCMay 5, 18:45 UTC10m
2026-05-05 N911LA - May 5, 15:30 UTCMay 5, 16:35 UTC1h 5m
2026-05-05 N911LA - May 5, 14:05 UTCMay 5, 14:25 UTC20m
2026-05-05 N911LA - May 5, 13:10 UTCMay 5, 13:25 UTC15m
2026-05-04 N911LA - May 4, 18:30 UTCMay 4, 19:05 UTC36m
2026-05-04 N911LA - May 4, 15:35 UTCMay 4, 16:20 UTC45m
2026-05-02 N911LA - May 2, 19:35 UTCMay 2, 20:45 UTC1h 10m
2026-05-02 N911LA - May 2, 16:30 UTCMay 2, 16:40 UTC10m
2026-05-02 N911LA - May 2, 15:40 UTCMay 2, 15:50 UTC10m
2026-04-29 N911LA - Apr 29, 19:40 UTCApr 29, 20:40 UTC1h 0m
2026-04-29 N911LA CBF → CBF Apr 29, 17:15 UTCApr 29, 18:20 UTC1h 5m
2026-04-28 N911LA - Apr 28, 15:25 UTCApr 28, 15:40 UTC15m
2026-04-25 N911LA - Apr 25, 13:25 UTCApr 25, 14:15 UTC50m
2026-04-24 N911LA - Apr 24, 21:45 UTCApr 24, 22:50 UTC1h 5m
2026-04-24 N911LA - Apr 24, 17:45 UTCApr 24, 19:15 UTC1h 30m
2026-04-24 N911LA CBF → CBF Apr 24, 15:45 UTCApr 24, 16:30 UTC45m
2026-04-22 N911LA - Apr 22, 13:20 UTCApr 22, 14:25 UTC1h 5m
2026-04-21 N911LA - Apr 21, 22:40 UTCApr 21, 22:50 UTC10m
2026-04-21 N911LA - Apr 21, 21:20 UTCApr 21, 21:35 UTC15m
2026-04-20 N911LA - Apr 20, 21:35 UTCApr 20, 22:45 UTC1h 10m
2026-04-20 N911LA - Apr 20, 14:15 UTCApr 20, 14:55 UTC40m
2026-04-16 N911LA - Apr 16, 21:34 UTCApr 16, 22:45 UTC1h 10m
2026-04-16 N911LA CBF → CBF Apr 16, 19:20 UTCApr 16, 20:15 UTC55m
2026-04-16 N911LA - Apr 16, 15:35 UTCApr 16, 16:15 UTC40m

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 N911LA page for operator, model, and routing details .

Mode-S AC9B5D frequently asked

What is Mode-S code AC9B5D?
AC9B5D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N911LA.
Where is Mode-S AC9B5D registered?
Mode-S code AC9B5D is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is AC9B5D broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC9B5D, octal 53115535, decimal 11,311,965.
What flights does AC9B5D operate?
Mode-S AC9B5D has broadcast 1 distinct callsign, including N911LA.