Apparatus

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sensors Mode-S transponder

A4CA78

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N408BF · operated by RIDGE CREST LEASING LLC

Hex
A4CA78
Octal
51145170
Decimal
10,799,736
Country
US
Tail
N408BF
Type
CL60
No current signal · last broadcast 2d ago
Flights observed
38
Distinct callsigns
1
Country
US
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S A4CA78.

Country allocation

The ICAO 24-bit address A4CA78 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
JTL408 - 38 2026-07-15

Recent flights last 38

DateFlightRouteTakeoffLandingDuration
2026-07-15 JTL408 - Jul 15, 21:00 UTCJul 15, 22:05 UTC1h 5m
2026-07-15 JTL408 - Jul 15, 17:15 UTCJul 15, 17:45 UTC30m
2026-07-14 JTL408 - Jul 14, 18:05 UTCJul 14, 19:15 UTC1h 10m
2026-07-12 JTL408 - Jul 12, 16:40 UTCJul 12, 17:05 UTC25m
2026-07-01 JTL408 - Jul 1, 15:25 UTCJul 1, 15:45 UTC20m
2026-06-27 JTL408 HPN → EGE Jun 27, 17:59 UTCJun 27, 18:39 UTC40m
2026-06-27 JTL408 HPN → EGE Jun 27, 15:55 UTCJun 27, 16:39 UTC45m
2026-06-26 JTL408 HPN → EGE Jun 26, 19:00 UTCJun 26, 19:24 UTC25m
2026-06-26 JTL408 HPN → EGE Jun 26, 13:34 UTCJun 26, 15:49 UTC2h 15m
2026-06-25 JTL408 HPN → EGE Jun 25, 17:39 UTCJun 25, 18:34 UTC55m
2026-06-20 JTL408 HPN → EGE Jun 20, 03:44 UTCJun 20, 05:09 UTC1h 25m
2026-06-19 JTL408 HPN → EGE Jun 19, 16:55 UTCJun 19, 17:24 UTC30m
2026-06-18 JTL408 HPN → EGE Jun 18, 23:00 UTCJun 19, 01:04 UTC2h 4m
2026-06-18 JTL408 HPN → EGE Jun 18, 16:55 UTCJun 18, 20:50 UTC3h 55m
2026-06-18 JTL408 HPN → EGE Jun 18, 14:05 UTCJun 18, 14:15 UTC10m
2026-06-12 JTL408 HPN → EGE Jun 12, 22:40 UTCJun 13, 00:55 UTC2h 15m
2026-06-11 JTL408 HPN → EGE Jun 11, 23:30 UTCJun 12, 00:00 UTC30m
2026-06-07 JTL408 HPN → EGE Jun 7, 21:20 UTCJun 8, 02:05 UTC4h 45m
2026-06-06 JTL408 HPN → EGE Jun 6, 21:54 UTCJun 6, 22:44 UTC50m
2026-06-06 JTL408 HPN → EGE Jun 6, 16:50 UTCJun 6, 20:35 UTC3h 45m
2026-06-06 JTL408 HPN → EGE Jun 6, 13:15 UTCJun 6, 15:30 UTC2h 15m
2026-06-01 JTL408 HPN → EGE Jun 1, 16:00 UTCJun 1, 18:20 UTC2h 20m
2026-06-01 JTL408 HPN → EGE Jun 1, 13:45 UTCJun 1, 14:00 UTC15m
2026-05-31 JTL408 HPN → EGE May 31, 16:35 UTCMay 31, 16:55 UTC20m
2026-05-05 JTL408 HPN → EGE May 5, 18:00 UTCMay 5, 18:30 UTC30m
2026-05-05 JTL408 HPN → EGE May 5, 15:40 UTCMay 5, 17:30 UTC1h 50m
2026-05-05 JTL408 HPN → EGE May 5, 12:50 UTCMay 5, 13:30 UTC40m
2026-05-01 JTL408 HPN → EGE May 1, 21:50 UTCMay 2, 00:50 UTC3h 0m
2026-05-01 JTL408 HPN → EGE May 1, 17:05 UTCMay 1, 17:55 UTC50m
2026-05-01 JTL408 HPN → EGE May 1, 14:05 UTCMay 1, 15:35 UTC1h 30m
2026-04-30 JTL408 HPN → EGE Apr 30, 19:50 UTCApr 30, 20:55 UTC1h 5m
2026-04-30 JTL408 HPN → EGE Apr 30, 16:15 UTCApr 30, 19:05 UTC2h 50m
2026-04-29 JTL408 HPN → EGE Apr 29, 19:35 UTCApr 29, 21:05 UTC1h 30m
2026-04-29 JTL408 HPN → EGE Apr 29, 17:10 UTCApr 29, 18:45 UTC1h 35m
2026-04-17 JTL408 HPN → EGE Apr 17, 23:25 UTCApr 18, 00:25 UTC1h 0m
2026-04-17 JTL408 HPN → EGE Apr 17, 22:05 UTCApr 17, 23:20 UTC1h 15m
2026-04-13 JTL408 - Apr 13, 16:15 UTCApr 13, 16:40 UTC25m
2026-04-13 JTL408 - Apr 13, 16:00 UTCApr 13, 16:15 UTC15m

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 N408BF page for operator, model, and routing details .

Mode-S A4CA78 frequently asked

What is Mode-S code A4CA78?
A4CA78 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N408BF.
Where is Mode-S A4CA78 registered?
Mode-S code A4CA78 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 A4CA78 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A4CA78, octal 51145170, decimal 10,799,736.
What flights does A4CA78 operate?
Mode-S A4CA78 has broadcast 1 distinct callsign, including JTL408.