Apparatus

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sensors Mode-S transponder

A1A116

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N204CE · operated by AVIATION FINANCIAL CORP

Hex
A1A116
Octal
50320426
Decimal
10,592,534
Country
US
Tail
N204CE
Type
SLG2
No current signal · last broadcast 1d ago
Flights observed
70
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A1A116.

Country allocation

The ICAO 24-bit address A1A116 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
N204CE - 70 2026-05-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-28 N204CE SEE → SEE May 28, 16:45 UTCMay 28, 17:25 UTC40m
2026-05-28 N204CE SEE → SEE May 28, 14:30 UTCMay 28, 15:35 UTC1h 5m
2026-05-27 N204CE - May 27, 20:20 UTCMay 27, 21:15 UTC55m
2026-05-26 N204CE SEE → SEE May 26, 18:34 UTCMay 26, 18:59 UTC25m
2026-05-26 N204CE SEE → SEE May 26, 16:40 UTCMay 26, 17:25 UTC45m
2026-05-25 N204CE SEE → SEE May 25, 17:30 UTCMay 25, 18:00 UTC30m
2026-05-23 N204CE SEE → SEE May 23, 20:10 UTCMay 23, 20:30 UTC20m
2026-05-22 N204CE SEE → SEE May 22, 19:30 UTCMay 22, 20:25 UTC55m
2026-05-22 N204CE - May 22, 17:40 UTCMay 22, 18:15 UTC35m
2026-05-21 N204CE - May 21, 16:50 UTCMay 21, 17:40 UTC50m
2026-05-20 N204CE - May 20, 20:30 UTCMay 20, 21:35 UTC1h 5m
2026-05-20 N204CE - May 20, 18:45 UTCMay 20, 19:35 UTC50m
2026-05-20 N204CE - May 20, 16:45 UTCMay 20, 17:30 UTC45m
2026-05-18 N204CE - May 18, 19:40 UTCMay 18, 20:25 UTC45m
2026-05-14 N204CE - May 14, 21:40 UTCMay 14, 22:50 UTC1h 10m
2026-05-14 N204CE - May 14, 20:20 UTCMay 14, 20:45 UTC25m
2026-05-13 N204CE - May 13, 21:30 UTCMay 13, 22:25 UTC55m
2026-05-11 N204CE - May 11, 00:19 UTCMay 11, 01:05 UTC45m
2026-05-09 N204CE - May 9, 18:00 UTCMay 9, 19:00 UTC1h 0m
2026-05-08 N204CE - May 8, 21:55 UTCMay 8, 22:30 UTC35m
2026-05-08 N204CE SEE → SEE May 8, 20:25 UTCMay 8, 20:40 UTC15m
2026-05-07 N204CE - May 7, 23:39 UTCMay 8, 00:54 UTC1h 15m
2026-05-07 N204CE AVX → SEE May 7, 19:50 UTCMay 7, 20:55 UTC1h 5m
2026-05-07 N204CE - May 7, 17:35 UTCMay 7, 18:35 UTC1h 0m
2026-05-07 N204CE - May 7, 00:15 UTCMay 7, 01:15 UTC1h 0m
2026-05-06 N204CE HII → SEE May 6, 20:05 UTCMay 6, 21:50 UTC1h 45m
2026-05-06 N204CE - May 6, 17:50 UTCMay 6, 18:50 UTC1h 0m
2026-05-06 N204CE - May 6, 16:40 UTCMay 6, 17:05 UTC25m
2026-05-04 N204CE - May 4, 01:35 UTCMay 4, 02:39 UTC1h 5m
2026-05-01 N204CE - May 1, 21:55 UTCMay 2, 00:20 UTC2h 25m
2026-04-30 N204CE - Apr 30, 19:40 UTCApr 30, 20:30 UTC50m
2026-04-30 N204CE - Apr 30, 15:40 UTCApr 30, 16:20 UTC40m
2026-04-29 N204CE - Apr 29, 23:50 UTCApr 30, 00:50 UTC1h 0m
2026-04-28 N204CE SEE → SEE Apr 28, 19:50 UTCApr 28, 20:45 UTC55m
2026-04-28 N204CE - Apr 28, 17:45 UTCApr 28, 18:35 UTC50m
2026-04-28 N204CE - Apr 28, 16:00 UTCApr 28, 16:40 UTC40m
2026-04-24 N204CE - Apr 24, 21:50 UTCApr 24, 22:45 UTC55m
2026-04-23 N204CE - Apr 23, 23:40 UTCApr 24, 00:45 UTC1h 5m
2026-04-23 N204CE SEE → SEE Apr 23, 21:45 UTCApr 23, 22:35 UTC50m
2026-04-23 N204CE - Apr 23, 19:30 UTCApr 23, 20:10 UTC40m
2026-04-23 N204CE - Apr 23, 16:35 UTCApr 23, 17:50 UTC1h 14m
2026-04-23 N204CE SEE → SEE Apr 23, 14:50 UTCApr 23, 15:30 UTC40m
2026-04-22 N204CE SEE → SEE Apr 22, 21:40 UTCApr 22, 22:30 UTC50m
2026-04-22 N204CE - Apr 22, 16:40 UTCApr 22, 17:45 UTC1h 5m
2026-04-22 N204CE SEE → SEE Apr 22, 14:30 UTCApr 22, 15:30 UTC1h 0m
2026-04-21 N204CE SEE → SEE Apr 21, 23:30 UTCApr 22, 00:50 UTC1h 20m
2026-04-21 N204CE SEE → SEE Apr 21, 19:45 UTCApr 21, 20:50 UTC1h 5m
2026-04-21 N204CE - Apr 21, 02:45 UTCApr 21, 03:45 UTC1h 0m
2026-04-21 N204CE - Apr 21, 00:15 UTCApr 21, 01:10 UTC55m
2026-04-20 N204CE - Apr 20, 23:00 UTCApr 20, 23:15 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 N204CE page for operator, model, and routing details .

Mode-S A1A116 frequently asked

What is Mode-S code A1A116?
A1A116 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N204CE.
Where is Mode-S A1A116 registered?
Mode-S code A1A116 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 A1A116 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1A116, octal 50320426, decimal 10,592,534.
What flights does A1A116 operate?
Mode-S A1A116 has broadcast 1 distinct callsign, including N204CE.