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sensors Mode-S transponder

AD40C7

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N953LA · AEROSPATIALE AS-350 Ecureuil · operated by COUNTY OF LOS ANGELES

Hex
AD40C7
Octal
53240307
Decimal
11,354,311
Country
US
Tail
N953LA
Type
AS50
No current signal · last broadcast Jul 14, 06:00 UTC
Flights observed
122
Distinct callsigns
1
Country
US
Last broadcast
Jul 14, 06:00 UTC

Last known position

Most recent position reported by Mode-S AD40C7.

Country allocation

The ICAO 24-bit address AD40C7 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
N953LA - 122 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 N953LA - Jul 14, 05:35 UTCJul 14, 06:00 UTC25m
2026-07-14 N953LA - Jul 14, 04:15 UTCJul 14, 04:45 UTC30m
2026-07-13 N953LA - Jul 13, 22:40 UTCJul 13, 23:10 UTC30m
2026-07-13 N953LA - Jul 13, 05:05 UTCJul 13, 06:01 UTC55m
2026-07-12 N953LA - Jul 12, 22:30 UTCJul 12, 23:10 UTC40m
2026-07-11 N953LA - Jul 11, 23:00 UTCJul 11, 23:55 UTC55m
2026-07-11 N953LA LGB → LGB Jul 11, 19:25 UTCJul 11, 21:15 UTC1h 50m
2026-07-11 N953LA - Jul 11, 16:10 UTCJul 11, 18:25 UTC2h 15m
2026-07-10 N953LA - Jul 10, 17:45 UTCJul 10, 17:55 UTC10m
2026-07-09 N953LA - Jul 9, 08:00 UTCJul 9, 09:55 UTC1h 55m
2026-07-09 N953LA - Jul 9, 02:55 UTCJul 9, 05:05 UTC2h 10m
2026-07-08 N953LA - Jul 8, 08:00 UTCJul 8, 10:50 UTC2h 50m
2026-07-08 N953LA - Jul 8, 03:00 UTCJul 8, 05:40 UTC2h 40m
2026-07-07 N953LA - Jul 7, 08:05 UTCJul 7, 11:00 UTC2h 55m
2026-07-07 N953LA LGB → LGB Jul 7, 03:00 UTCJul 7, 05:15 UTC2h 15m
2026-07-06 N953LA LGB → LGB Jul 6, 08:00 UTCJul 6, 10:55 UTC2h 55m
2026-07-06 N953LA - Jul 6, 04:10 UTCJul 6, 05:15 UTC1h 5m
2026-07-06 N953LA - Jul 6, 03:15 UTCJul 6, 03:25 UTC10m
2026-07-04 N953LA - Jul 4, 18:05 UTCJul 4, 21:05 UTC3h 0m
2026-07-04 N953LA - Jul 4, 13:10 UTCJul 4, 16:10 UTC3h 0m
2026-07-03 N953LA - Jul 3, 19:20 UTCJul 3, 20:55 UTC1h 35m
2026-07-03 N953LA - Jul 3, 18:05 UTCJul 3, 19:00 UTC55m
2026-07-03 N953LA LGB → LGB Jul 3, 13:20 UTCJul 3, 15:50 UTC2h 30m
2026-07-02 N953LA - Jul 2, 21:30 UTCJul 2, 21:55 UTC25m
2026-07-02 N953LA - Jul 2, 19:10 UTCJul 2, 19:50 UTC40m
2026-07-02 N953LA - Jul 2, 18:15 UTCJul 2, 18:40 UTC25m
2026-07-02 N953LA - Jul 2, 13:55 UTCJul 2, 16:00 UTC2h 5m
2026-06-25 N953LA LGB → LGB Jun 25, 21:35 UTCJun 25, 23:55 UTC2h 20m
2026-06-25 N953LA CPM → LGB Jun 25, 16:39 UTCJun 25, 18:15 UTC1h 35m
2026-06-24 N953LA - Jun 24, 06:04 UTCJun 24, 07:54 UTC1h 50m
2026-06-24 N953LA - Jun 24, 01:39 UTCJun 24, 02:49 UTC1h 10m
2026-06-24 N953LA - Jun 24, 00:15 UTCJun 24, 01:34 UTC1h 20m
2026-06-18 N953LA - Jun 18, 20:50 UTCJun 18, 23:10 UTC2h 20m
2026-06-18 N953LA - Jun 18, 00:45 UTCJun 18, 03:55 UTC3h 10m
2026-06-17 N953LA LGB → LGB Jun 17, 21:20 UTCJun 17, 21:40 UTC20m
2026-06-17 N953LA - Jun 17, 03:30 UTCJun 17, 04:15 UTC45m
2026-06-16 N953LA - Jun 16, 23:00 UTCJun 16, 23:30 UTC30m
2026-06-16 N953LA - Jun 16, 21:00 UTCJun 16, 21:20 UTC20m
2026-06-14 N953LA - Jun 14, 05:30 UTCJun 14, 06:10 UTC40m
2026-06-14 N953LA LGB → LGB Jun 14, 00:50 UTCJun 14, 03:30 UTC2h 40m
2026-06-13 N953LA - Jun 13, 04:30 UTCJun 13, 06:50 UTC2h 20m
2026-06-12 N953LA - Jun 12, 22:55 UTCJun 13, 00:55 UTC2h 0m
2026-06-11 N953LA - Jun 11, 05:50 UTCJun 11, 08:05 UTC2h 15m
2026-06-11 N953LA - Jun 11, 00:25 UTCJun 11, 03:00 UTC2h 35m
2026-06-07 N953LA - Jun 7, 05:15 UTCJun 7, 08:10 UTC2h 55m
2026-06-07 N953LA LGB → LGB Jun 7, 00:00 UTCJun 7, 03:05 UTC3h 5m
2026-06-04 N953LA - Jun 4, 21:45 UTCJun 5, 00:00 UTC2h 15m
2026-06-04 N953LA - Jun 4, 16:50 UTCJun 4, 19:50 UTC3h 0m
2026-06-03 N953LA CPM → LGB Jun 3, 05:25 UTCJun 3, 06:45 UTC1h 20m
2026-06-03 N953LA - Jun 3, 02:10 UTCJun 3, 02:20 UTC10m

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 N953LA page for operator, model, and routing details .

Mode-S AD40C7 frequently asked

What is Mode-S code AD40C7?
AD40C7 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N953LA.
Where is Mode-S AD40C7 registered?
Mode-S code AD40C7 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 AD40C7 broadcasting right now?
No active broadcast right now. Last signal was Jul 14, 06:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD40C7, octal 53240307, decimal 11,354,311.
What flights does AD40C7 operate?
Mode-S AD40C7 has broadcast 1 distinct callsign, including N953LA.