Apparatus

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sensors Mode-S transponder

A916CC

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N685LH · PIPER PA-28-140/150/160/180 · operated by CHRISTIANSEN AVIATION LLC

Hex
A916CC
Octal
52213314
Decimal
11,081,420
Country
US
Tail
N685LH
Type
P28A
Broadcasting now · callsign LFA542 · 1,375 ft
Flights observed
217
Distinct callsigns
1
Country
US
Last broadcast
2h ago

Current position

A916CC is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A916CC 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
LFA542 - 217 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 LFA542 - Jul 14, 10:55 UTCJul 14, 11:15 UTC20m
2026-07-13 LFA542 - Jul 13, 17:45 UTCJul 13, 20:15 UTC2h 30m
2026-07-13 LFA542 - Jul 13, 15:45 UTCJul 13, 16:35 UTC50m
2026-07-13 LFA542 SFB → SFB Jul 13, 12:35 UTCJul 13, 13:20 UTC45m
2026-07-11 LFA542 SFB → SFB Jul 11, 01:10 UTCJul 11, 01:40 UTC30m
2026-07-10 LFA542 SFB → SFB Jul 10, 18:15 UTCJul 10, 19:55 UTC1h 40m
2026-07-10 LFA542 - Jul 10, 11:50 UTCJul 10, 13:45 UTC1h 55m
2026-07-09 LFA542 SFB → SFB Jul 9, 21:45 UTCJul 9, 22:10 UTC25m
2026-07-09 LFA542 SFB → SFB Jul 9, 19:00 UTCJul 9, 19:50 UTC50m
2026-07-09 LFA542 - Jul 9, 15:50 UTCJul 9, 17:55 UTC2h 5m
2026-07-09 LFA542 - Jul 9, 11:45 UTCJul 9, 13:55 UTC2h 10m
2026-07-08 LFA542 - Jul 8, 14:40 UTCJul 8, 15:05 UTC25m
2026-07-08 LFA542 - Jul 8, 11:10 UTCJul 8, 13:00 UTC1h 50m
2026-07-07 LFA542 - Jul 7, 19:15 UTCJul 7, 20:05 UTC50m
2026-07-07 LFA542 - Jul 7, 16:25 UTCJul 7, 16:45 UTC20m
2026-07-07 LFA542 - Jul 7, 13:40 UTCJul 7, 14:20 UTC40m
2026-07-07 LFA542 - Jul 7, 12:20 UTCJul 7, 13:05 UTC45m
2026-07-06 LFA542 - Jul 6, 12:45 UTCJul 6, 14:55 UTC2h 10m
2026-07-05 LFA542 - Jul 5, 16:55 UTCJul 5, 17:40 UTC45m
2026-07-05 LFA542 - Jul 5, 14:00 UTCJul 5, 14:30 UTC30m
2026-07-05 LFA542 - Jul 5, 12:55 UTCJul 5, 13:30 UTC35m
2026-07-04 LFA542 - Jul 4, 14:00 UTCJul 4, 16:05 UTC2h 5m
2026-07-04 LFA542 SFB → SFB Jul 4, 12:10 UTCJul 4, 12:50 UTC40m
2026-07-04 LFA542 - Jul 4, 10:45 UTCJul 4, 11:30 UTC45m
2026-07-03 LFA542 - Jul 3, 19:15 UTCJul 3, 20:05 UTC50m
2026-07-02 LFA542 - Jul 2, 17:05 UTCJul 2, 18:20 UTC1h 15m
2026-07-02 LFA542 - Jul 2, 12:35 UTCJul 2, 14:30 UTC1h 55m
2026-07-01 LFA542 - Jul 1, 16:20 UTCJul 1, 16:30 UTC10m
2026-07-01 LFA542 - Jul 1, 12:35 UTCJul 1, 13:40 UTC1h 5m
2026-07-01 LFA542 - Jul 1, 11:10 UTCJul 1, 12:05 UTC55m
2026-06-30 LFA542 - Jun 30, 16:40 UTCJun 30, 17:30 UTC50m
2026-06-30 LFA542 - Jun 30, 13:05 UTCJun 30, 14:30 UTC1h 25m
2026-06-29 LFA542 - Jun 29, 17:05 UTCJun 29, 18:10 UTC1h 5m
2026-06-29 LFA542 SFB → SFB Jun 29, 11:50 UTCJun 29, 13:59 UTC2h 10m
2026-06-28 LFA542 - Jun 28, 18:55 UTCJun 28, 19:29 UTC35m
2026-06-28 LFA542 - Jun 28, 16:55 UTCJun 28, 17:44 UTC50m
2026-06-28 LFA542 - Jun 28, 14:50 UTCJun 28, 15:55 UTC1h 5m
2026-06-27 LFA542 - Jun 27, 13:35 UTCJun 27, 15:34 UTC2h 0m
2026-06-26 LFA542 - Jun 26, 16:35 UTCJun 26, 17:40 UTC1h 5m
2026-06-26 LFA542 - Jun 26, 12:55 UTCJun 26, 15:29 UTC2h 35m
2026-06-25 LFA542 - Jun 25, 12:40 UTCJun 25, 14:24 UTC1h 45m
2026-06-24 LFA542 - Jun 24, 13:10 UTCJun 24, 13:30 UTC20m
2026-06-23 LFA542 - Jun 23, 22:44 UTCJun 24, 00:20 UTC1h 35m
2026-06-23 LFA542 - Jun 23, 17:20 UTCJun 23, 18:04 UTC45m
2026-06-23 LFA542 - Jun 23, 11:35 UTCJun 23, 12:40 UTC1h 5m
2026-06-22 LFA542 - Jun 22, 11:35 UTCJun 22, 14:10 UTC2h 35m
2026-06-21 LFA542 - Jun 21, 12:24 UTCJun 21, 14:44 UTC2h 20m
2026-06-19 LFA542 - Jun 19, 17:59 UTCJun 19, 18:20 UTC20m
2026-06-19 LFA542 - Jun 19, 14:39 UTCJun 19, 16:29 UTC1h 50m
2026-06-18 LFA542 - Jun 18, 20:20 UTCJun 18, 21:25 UTC1h 5m

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 N685LH page for operator, model, and routing details .

Mode-S A916CC frequently asked

What is Mode-S code A916CC?
A916CC is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N685LH.
Where is Mode-S A916CC registered?
Mode-S code A916CC 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 A916CC broadcasting right now?
Yes. Mode-S A916CC is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A916CC, octal 52213314, decimal 11,081,420.
What flights does A916CC operate?
Mode-S A916CC has broadcast 1 distinct callsign, including LFA542.