Apparatus

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sensors Mode-S transponder

A16B84

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N1907M · CESSNA 560XL Citation XLS · operated by MEIJER DISTRIBUTION INC

Hex
A16B84
Octal
50265604
Decimal
10,578,820
Country
US
Tail
N1907M
Type
C56X
No current signal · last broadcast Jul 22, 18:10 UTC
Flights observed
85
Distinct callsigns
1
Country
US
Last broadcast
Jul 22, 18:10 UTC

Last known position

Most recent position reported by Mode-S A16B84.

Country allocation

The ICAO 24-bit address A16B84 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
N1907M - 85 2026-07-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-22 N1907M - Jul 22, 17:30 UTCJul 22, 18:10 UTC40m
2026-07-22 N1907M - Jul 22, 11:50 UTCJul 22, 12:25 UTC35m
2026-07-21 N1907M HUF → GRR Jul 21, 19:30 UTCJul 21, 20:15 UTC45m
2026-07-21 N1907M - Jul 21, 11:50 UTCJul 21, 12:30 UTC40m
2026-07-20 N1907M - Jul 20, 19:25 UTCJul 20, 19:55 UTC30m
2026-07-20 N1907M - Jul 20, 11:45 UTCJul 20, 12:10 UTC25m
2026-07-17 N1907M - Jul 17, 18:50 UTCJul 17, 19:20 UTC30m
2026-07-17 N1907M - Jul 17, 14:35 UTCJul 17, 15:00 UTC25m
2026-07-17 N1907M - Jul 17, 11:25 UTCJul 17, 12:04 UTC40m
2026-07-16 N1907M - Jul 16, 17:45 UTCJul 16, 18:10 UTC25m
2026-07-16 N1907M - Jul 16, 14:55 UTCJul 16, 15:25 UTC30m
2026-07-16 N1907M - Jul 16, 11:54 UTCJul 16, 12:40 UTC45m
2026-07-14 N1907M - Jul 14, 11:55 UTCJul 14, 13:25 UTC1h 30m
2026-07-14 N1907M - Jul 14, 10:15 UTCJul 14, 10:55 UTC40m
2026-07-13 N1907M - Jul 13, 13:20 UTCJul 13, 14:10 UTC50m
2026-07-13 N1907M - Jul 13, 11:50 UTCJul 13, 12:45 UTC55m
2026-07-08 N1907M - Jul 8, 17:05 UTCJul 8, 17:45 UTC40m
2026-07-08 N1907M - Jul 8, 11:50 UTCJul 8, 12:25 UTC35m
2026-07-07 N1907M - Jul 7, 19:25 UTCJul 7, 20:20 UTC55m
2026-07-07 N1907M - Jul 7, 11:55 UTCJul 7, 12:45 UTC50m
2026-07-06 N1907M - Jul 6, 17:50 UTCJul 6, 18:25 UTC35m
2026-07-06 N1907M - Jul 6, 11:50 UTCJul 6, 12:25 UTC35m
2026-07-01 N1907M - Jul 1, 18:55 UTCJul 1, 19:20 UTC25m
2026-07-01 N1907M - Jul 1, 11:45 UTCJul 1, 12:25 UTC40m
2026-06-30 N1907M - Jun 30, 20:05 UTCJun 30, 20:40 UTC35m
2026-06-30 N1907M - Jun 30, 11:35 UTCJun 30, 12:10 UTC35m
2026-06-24 N1907M - Jun 24, 20:35 UTCJun 24, 21:04 UTC30m
2026-06-24 N1907M - Jun 24, 11:50 UTCJun 24, 12:14 UTC25m
2026-06-22 N1907M - Jun 22, 18:00 UTCJun 22, 18:40 UTC40m
2026-06-22 N1907M - Jun 22, 11:54 UTCJun 22, 12:34 UTC40m
2026-06-17 N1907M - Jun 17, 17:45 UTCJun 17, 18:25 UTC40m
2026-06-17 N1907M - Jun 17, 12:00 UTCJun 17, 12:35 UTC35m
2026-06-11 N1907M - Jun 11, 19:00 UTCJun 11, 19:40 UTC40m
2026-06-11 N1907M - Jun 11, 17:30 UTCJun 11, 18:05 UTC35m
2026-06-10 N1907M - Jun 10, 18:55 UTCJun 10, 19:45 UTC50m
2026-06-10 N1907M - Jun 10, 12:05 UTCJun 10, 12:55 UTC50m
2026-06-09 N1907M - Jun 9, 19:10 UTCJun 9, 19:30 UTC20m
2026-06-09 N1907M - Jun 9, 11:30 UTCJun 9, 11:50 UTC20m
2026-06-08 N1907M - Jun 8, 11:10 UTCJun 8, 11:40 UTC30m
2026-06-08 N1907M - Jun 8, 10:00 UTCJun 8, 10:35 UTC35m
2026-06-04 N1907M - Jun 4, 18:55 UTCJun 4, 19:25 UTC30m
2026-06-04 N1907M - Jun 4, 17:45 UTCJun 4, 18:15 UTC30m
2026-06-01 N1907M - Jun 1, 10:05 UTCJun 1, 11:30 UTC1h 25m
2026-05-26 N1907M - May 26, 19:10 UTCMay 26, 20:05 UTC55m
2026-05-26 N1907M - May 26, 11:54 UTCMay 26, 12:54 UTC1h 0m
2026-05-20 N1907M - May 20, 19:25 UTCMay 20, 19:55 UTC30m
2026-05-20 N1907M GRR → GRB May 20, 17:30 UTCMay 20, 19:00 UTC1h 30m
2026-05-19 N1907M - May 19, 21:00 UTCMay 19, 21:30 UTC30m
2026-05-19 N1907M - May 19, 11:55 UTCMay 19, 12:30 UTC35m
2026-05-14 N1907M - May 14, 19:50 UTCMay 14, 20:35 UTC45m

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 N1907M page for operator, model, and routing details .

Mode-S A16B84 frequently asked

What is Mode-S code A16B84?
A16B84 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N1907M.
Where is Mode-S A16B84 registered?
Mode-S code A16B84 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 A16B84 broadcasting right now?
No active broadcast right now. Last signal was Jul 22, 18:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A16B84, octal 50265604, decimal 10,578,820.
What flights does A16B84 operate?
Mode-S A16B84 has broadcast 1 distinct callsign, including N1907M.