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sensors Mode-S transponder

A9F7DD

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N741SM · AEROSPATIALE AS-350 Ecureuil · operated by LAS VEGAS METROPOLITAN POLICE DEPARTMENT

Hex
A9F7DD
Octal
52373735
Decimal
11,139,037
Country
US
Tail
N741SM
Type
AS50
No current signal · last broadcast 11h ago
Flights observed
206
Distinct callsigns
1
Country
US
Last broadcast
11h ago

Last known position

Most recent position reported by Mode-S A9F7DD.

Country allocation

The ICAO 24-bit address A9F7DD 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
N741SM - 206 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 N741SM - Jul 17, 20:25 UTCJul 17, 21:55 UTC1h 30m
2026-07-17 N741SM VGT → VGT Jul 17, 16:10 UTCJul 17, 18:00 UTC1h 50m
2026-07-17 N741SM VGT → VGT Jul 17, 09:30 UTCJul 17, 10:30 UTC1h 0m
2026-07-17 N741SM - Jul 17, 06:25 UTCJul 17, 08:15 UTC1h 50m
2026-07-17 N741SM - Jul 17, 03:34 UTCJul 17, 05:25 UTC1h 50m
2026-07-16 N741SM VGT → VGT Jul 16, 22:25 UTCJul 17, 00:25 UTC2h 0m
2026-07-16 N741SM - Jul 16, 19:30 UTCJul 16, 20:39 UTC1h 10m
2026-07-16 N741SM VGT → HSH Jul 16, 18:25 UTCJul 16, 18:34 UTC10m
2026-07-16 N741SM - Jul 16, 16:00 UTCJul 16, 17:49 UTC1h 50m
2026-07-13 N741SM - Jul 13, 07:25 UTCJul 13, 10:05 UTC2h 40m
2026-07-13 N741SM - Jul 13, 02:05 UTCJul 13, 04:35 UTC2h 30m
2026-07-12 N741SM VGT → VGT Jul 12, 07:20 UTCJul 12, 09:20 UTC2h 0m
2026-07-12 N741SM - Jul 12, 04:20 UTCJul 12, 06:01 UTC1h 40m
2026-07-12 N741SM VGT → VGT Jul 12, 02:10 UTCJul 12, 03:45 UTC1h 35m
2026-07-11 N741SM - Jul 11, 09:15 UTCJul 11, 10:15 UTC1h 0m
2026-07-11 N741SM - Jul 11, 06:35 UTCJul 11, 08:25 UTC1h 50m
2026-07-11 N741SM - Jul 11, 04:20 UTCJul 11, 05:40 UTC1h 20m
2026-07-11 N741SM VGT → VGT Jul 11, 02:30 UTCJul 11, 03:40 UTC1h 10m
2026-07-10 N741SM - Jul 10, 09:00 UTCJul 10, 09:25 UTC25m
2026-07-10 N741SM VGT → HSH Jul 10, 07:40 UTCJul 10, 08:55 UTC1h 15m
2026-07-10 N741SM VGT → VGT Jul 10, 04:35 UTCJul 10, 05:30 UTC55m
2026-07-10 N741SM - Jul 10, 01:50 UTCJul 10, 04:00 UTC2h 10m
2026-07-09 N741SM VGT → VGT Jul 9, 06:25 UTCJul 9, 08:30 UTC2h 5m
2026-07-09 N741SM VGT → VGT Jul 9, 02:20 UTCJul 9, 04:15 UTC1h 55m
2026-07-06 N741SM - Jul 6, 07:30 UTCJul 6, 09:25 UTC1h 55m
2026-07-06 N741SM - Jul 6, 05:30 UTCJul 6, 07:05 UTC1h 35m
2026-07-06 N741SM - Jul 6, 02:30 UTCJul 6, 03:25 UTC55m
2026-07-06 N741SM - Jul 6, 01:25 UTCJul 6, 02:25 UTC1h 0m
2026-07-05 N741SM - Jul 5, 09:15 UTCJul 5, 10:20 UTC1h 5m
2026-07-04 N741SM - Jul 4, 23:15 UTCJul 5, 00:20 UTC1h 5m
2026-07-04 N741SM VGT → VGT Jul 4, 22:15 UTCJul 4, 22:50 UTC35m
2026-07-04 N741SM VGT → VGT Jul 4, 21:25 UTCJul 4, 22:10 UTC45m
2026-07-04 N741SM - Jul 4, 18:00 UTCJul 4, 19:35 UTC1h 35m
2026-07-04 N741SM - Jul 4, 16:15 UTCJul 4, 17:40 UTC1h 25m
2026-07-03 N741SM VGT → VGT Jul 3, 23:40 UTCJul 4, 00:45 UTC1h 5m
2026-07-03 N741SM VGT → VGT Jul 3, 22:15 UTCJul 3, 22:35 UTC20m
2026-07-03 N741SM - Jul 3, 18:05 UTCJul 3, 19:55 UTC1h 50m
2026-07-03 N741SM - Jul 3, 16:20 UTCJul 3, 17:40 UTC1h 20m
2026-07-03 N741SM VGT → VGT Jul 3, 07:45 UTCJul 3, 10:25 UTC2h 40m
2026-07-03 N741SM - Jul 3, 04:50 UTCJul 3, 05:30 UTC40m
2026-07-03 N741SM - Jul 3, 02:45 UTCJul 3, 04:20 UTC1h 35m
2026-07-03 N741SM VGT → VGT Jul 3, 01:40 UTCJul 3, 02:10 UTC30m
2026-07-02 N741SM VGT → VGT Jul 2, 09:50 UTCJul 2, 10:25 UTC35m
2026-07-02 N741SM - Jul 2, 07:40 UTCJul 2, 09:10 UTC1h 30m
2026-07-02 N741SM - Jul 2, 04:45 UTCJul 2, 06:15 UTC1h 30m
2026-07-02 N741SM VGT → VGT Jul 2, 02:55 UTCJul 2, 04:20 UTC1h 25m
2026-07-01 N741SM - Jul 1, 09:20 UTCJul 1, 10:05 UTC45m
2026-07-01 N741SM VGT → VGT Jul 1, 07:10 UTCJul 1, 09:10 UTC2h 0m
2026-07-01 N741SM - Jul 1, 03:10 UTCJul 1, 04:10 UTC1h 0m
2026-07-01 N741SM VGT → VGT Jul 1, 02:10 UTCJul 1, 03:05 UTC55m

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 N741SM page for operator, model, and routing details .

Mode-S A9F7DD frequently asked

What is Mode-S code A9F7DD?
A9F7DD is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N741SM.
Where is Mode-S A9F7DD registered?
Mode-S code A9F7DD 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 A9F7DD broadcasting right now?
No active broadcast right now. Last signal was 11h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A9F7DD, octal 52373735, decimal 11,139,037.
What flights does A9F7DD operate?
Mode-S A9F7DD has broadcast 1 distinct callsign, including N741SM.