sensors Mode-S transponder

A1CD12

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N215LC · BELL 206 JetRanger · operated by LAKE COUNTY SHERIFFS OFFICE

Hex
A1CD12
Octal
50346422
Decimal
10,603,794
Country
US
Tail
N215LC
Type
B06
No current signal · last broadcast 7d ago
Flights observed
33
Distinct callsigns
1
Country
US
Last broadcast
7d ago

Last known position

Most recent position reported by Mode-S A1CD12.

Country allocation

The ICAO 24-bit address A1CD12 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
N215LC - 33 2026-07-07

Recent flights last 33

DateFlightRouteTakeoffLandingDuration
2026-07-07 N215LC - Jul 7, 14:25 UTCJul 7, 14:55 UTC30m
2026-07-05 N215LC - Jul 5, 00:50 UTCJul 5, 01:20 UTC30m
2026-07-02 N215LC - Jul 2, 20:20 UTCJul 2, 21:05 UTC45m
2026-06-30 N215LC - Jun 30, 00:25 UTCJun 30, 01:30 UTC1h 6m
2026-06-26 N215LC - Jun 26, 00:20 UTCJun 26, 01:10 UTC50m
2026-06-25 N215LC - Jun 25, 15:34 UTCJun 25, 16:09 UTC35m
2026-06-14 N215LC - Jun 14, 05:10 UTCJun 14, 06:35 UTC1h 25m
2026-06-05 N215LC - Jun 5, 17:30 UTCJun 5, 17:50 UTC20m
2026-06-02 N215LC - Jun 2, 13:55 UTCJun 2, 14:50 UTC55m
2026-05-28 N215LC - May 28, 13:55 UTCMay 28, 14:15 UTC20m
2026-05-26 N215LC - May 26, 02:10 UTCMay 26, 03:00 UTC50m
2026-05-22 N215LC - May 22, 13:10 UTCMay 22, 15:15 UTC2h 5m
2026-05-22 N215LC - May 22, 04:10 UTCMay 22, 05:10 UTC1h 0m
2026-05-20 N215LC - May 20, 20:35 UTCMay 20, 21:40 UTC1h 5m
2026-05-20 N215LC - May 20, 13:45 UTCMay 20, 14:25 UTC40m
2026-05-16 N215LC - May 16, 06:55 UTCMay 16, 07:41 UTC45m
2026-05-15 N215LC - May 15, 14:55 UTCMay 15, 16:25 UTC1h 30m
2026-05-15 N215LC - May 15, 06:35 UTCMay 15, 07:35 UTC1h 0m
2026-05-14 N215LC LEE → LEE May 14, 13:25 UTCMay 14, 14:01 UTC35m
2026-05-05 N215LC - May 5, 13:10 UTCMay 5, 13:35 UTC25m
2026-04-28 N215LC LEE → LEE Apr 28, 16:45 UTCApr 28, 17:30 UTC45m
2026-04-24 N215LC - Apr 24, 16:40 UTCApr 24, 18:10 UTC1h 30m
2026-04-24 N215LC - Apr 24, 01:40 UTCApr 24, 02:25 UTC45m
2026-04-23 N215LC - Apr 23, 16:50 UTCApr 23, 17:15 UTC25m
2026-04-22 N215LC - Apr 22, 17:45 UTCApr 22, 18:40 UTC55m
2026-04-22 N215LC - Apr 22, 14:10 UTCApr 22, 14:40 UTC30m
2026-04-19 N215LC - Apr 19, 01:50 UTCApr 19, 02:55 UTC1h 5m
2026-04-17 N215LC - Apr 17, 13:20 UTCApr 17, 14:05 UTC45m
2026-04-17 N215LC - Apr 17, 12:45 UTCApr 17, 13:15 UTC30m
2026-04-17 N215LC - Apr 17, 05:20 UTCApr 17, 05:45 UTC25m
2026-04-17 N215LC - Apr 17, 04:55 UTCApr 17, 05:15 UTC20m
2026-04-14 N215LC - Apr 14, 13:40 UTCApr 14, 14:45 UTC1h 5m
2026-04-13 N215LC - Apr 13, 14:00 UTCApr 13, 14:10 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 N215LC page for operator, model, and routing details .

Mode-S A1CD12 frequently asked

What is Mode-S code A1CD12?
A1CD12 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N215LC.
Where is Mode-S A1CD12 registered?
Mode-S code A1CD12 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 A1CD12 broadcasting right now?
No active broadcast right now. Last signal was 7d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1CD12, octal 50346422, decimal 10,603,794.
What flights does A1CD12 operate?
Mode-S A1CD12 has broadcast 1 distinct callsign, including N215LC.