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sensors Mode-S transponder

A4C7A2

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N407LF · BELL 407 · operated by CLASSIC HELICOPTERS INC, CLASSIC NA LLC

Hex
A4C7A2
Octal
51143642
Decimal
10,799,010
Country
US
Tail
N407LF
Type
B407
No current signal · last broadcast Jul 21, 00:45 UTC
Flights observed
65
Distinct callsigns
1
Country
US
Last broadcast
Jul 21, 00:45 UTC

Last known position

Most recent position reported by Mode-S A4C7A2.

Country allocation

The ICAO 24-bit address A4C7A2 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
N407LF - 65 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-21 N407LF - Jul 21, 00:30 UTCJul 21, 00:45 UTC15m
2026-07-20 N407LF - Jul 20, 23:20 UTCJul 20, 23:30 UTC10m
2026-07-20 N407LF - Jul 20, 21:50 UTCJul 20, 22:35 UTC45m
2026-07-19 N407LF - Jul 19, 07:50 UTCJul 19, 08:55 UTC1h 5m
2026-07-19 N407LF - Jul 19, 06:30 UTCJul 19, 07:05 UTC35m
2026-07-18 N407LF - Jul 18, 09:50 UTCJul 18, 10:50 UTC1h 0m
2026-07-18 N407LF - Jul 18, 08:30 UTCJul 18, 09:05 UTC35m
2026-07-17 N407LF - Jul 17, 16:24 UTCJul 17, 17:09 UTC45m
2026-07-17 N407LF - Jul 17, 15:35 UTCJul 17, 15:40 UTC5m
2026-07-17 N407LF - Jul 17, 14:00 UTCJul 17, 14:44 UTC45m
2026-07-15 N407LF - Jul 15, 21:25 UTCJul 15, 22:10 UTC45m
2026-07-15 N407LF - Jul 15, 17:30 UTCJul 15, 18:15 UTC45m
2026-07-14 N407LF - Jul 14, 19:10 UTCJul 14, 20:00 UTC50m
2026-07-14 N407LF - Jul 14, 18:35 UTCJul 14, 18:40 UTC5m
2026-07-14 N407LF - Jul 14, 17:05 UTCJul 14, 17:40 UTC35m
2026-07-14 N407LF - Jul 14, 07:30 UTCJul 14, 08:40 UTC1h 10m
2026-07-14 N407LF - Jul 14, 05:55 UTCJul 14, 06:35 UTC40m
2026-07-13 N407LF - Jul 13, 08:15 UTCJul 13, 09:30 UTC1h 15m
2026-07-13 N407LF - Jul 13, 06:40 UTCJul 13, 07:25 UTC45m
2026-07-12 N407LF - Jul 12, 06:35 UTCJul 12, 08:01 UTC1h 25m
2026-07-12 N407LF - Jul 12, 04:55 UTCJul 12, 05:35 UTC40m
2026-07-12 N407LF - Jul 12, 01:25 UTCJul 12, 01:50 UTC25m
2026-07-09 N407LF - Jul 9, 16:00 UTCJul 9, 16:25 UTC25m
2026-07-08 N407LF - Jul 8, 21:20 UTCJul 8, 21:30 UTC10m
2026-07-06 N407LF - Jul 6, 19:40 UTCJul 6, 20:10 UTC30m
2026-06-29 N407LF - Jun 29, 18:05 UTCJun 29, 18:19 UTC15m
2026-06-25 N407LF OGD → BTF Jun 25, 02:19 UTCJun 25, 02:35 UTC15m
2026-06-22 N407LF - Jun 22, 21:00 UTCJun 22, 21:14 UTC15m
2026-06-22 N407LF - Jun 22, 15:45 UTCJun 22, 16:10 UTC25m
2026-06-19 N407LF - Jun 19, 08:24 UTCJun 19, 08:40 UTC15m
2026-06-18 N407LF - Jun 18, 15:50 UTCJun 18, 16:05 UTC15m
2026-06-18 N407LF - Jun 18, 14:25 UTCJun 18, 14:35 UTC10m
2026-06-15 N407LF - Jun 15, 21:14 UTCJun 15, 21:45 UTC30m
2026-06-15 N407LF - Jun 15, 00:05 UTCJun 15, 01:10 UTC1h 5m
2026-06-14 N407LF - Jun 14, 07:00 UTCJun 14, 07:15 UTC15m
2026-06-14 N407LF - Jun 14, 05:40 UTCJun 14, 05:50 UTC10m
2026-06-13 N407LF - Jun 13, 05:15 UTCJun 13, 05:45 UTC30m
2026-06-13 N407LF - Jun 13, 04:30 UTCJun 13, 04:40 UTC10m
2026-06-13 N407LF - Jun 13, 00:20 UTCJun 13, 01:30 UTC1h 10m
2026-06-10 N407LF - Jun 10, 20:35 UTCJun 10, 21:40 UTC1h 5m
2026-05-20 N407LF - May 20, 20:25 UTCMay 20, 20:40 UTC15m
2026-05-20 N407LF - May 20, 18:00 UTCMay 20, 18:50 UTC50m
2026-05-20 N407LF - May 20, 17:15 UTCMay 20, 17:30 UTC15m
2026-05-20 N407LF - May 20, 15:25 UTCMay 20, 15:35 UTC10m
2026-05-11 N407LF - May 11, 17:15 UTCMay 11, 17:35 UTC20m
2026-05-10 N407LF - May 10, 21:25 UTCMay 10, 21:40 UTC15m
2026-05-10 N407LF - May 10, 20:25 UTCMay 10, 20:35 UTC10m
2026-05-10 N407LF - May 10, 16:44 UTCMay 10, 16:55 UTC10m
2026-05-10 N407LF - May 10, 15:29 UTCMay 10, 15:39 UTC10m
2026-05-10 N407LF - May 10, 01:00 UTCMay 10, 01:24 UTC25m

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 N407LF page for operator, model, and routing details .

Mode-S A4C7A2 frequently asked

What is Mode-S code A4C7A2?
A4C7A2 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N407LF.
Where is Mode-S A4C7A2 registered?
Mode-S code A4C7A2 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 A4C7A2 broadcasting right now?
No active broadcast right now. Last signal was Jul 21, 00:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A4C7A2, octal 51143642, decimal 10,799,010.
What flights does A4C7A2 operate?
Mode-S A4C7A2 has broadcast 1 distinct callsign, including N407LF.