Apparatus

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sensors Mode-S transponder

AC3945

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N887QS · operated by TEXTRON AVIATION INC

Hex
AC3945
Octal
53034505
Decimal
11,286,853
Country
US
Tail
N887QS
Type
C700
No current signal · last broadcast 8h ago
Flights observed
112
Distinct callsigns
2
Country
US
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S AC3945.

Country allocation

The ICAO 24-bit address AC3945 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 2 distinct

Callsign Airline Flights Last seen
EJA887 NetJets 110 2026-05-30
N887QS - 2 2026-04-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 EJA887 TCL → PWK May 30, 02:50 UTCMay 30, 03:10 UTC20m
2026-05-29 EJA887 TCL → PWK May 29, 23:55 UTCMay 30, 01:35 UTC1h 40m
2026-05-29 EJA887 TCL → PWK May 29, 17:10 UTCMay 29, 22:30 UTC5h 20m
2026-05-28 EJA887 TCL → PWK May 28, 22:35 UTCMay 29, 01:25 UTC2h 50m
2026-05-28 EJA887 TCL → PWK May 28, 18:45 UTCMay 28, 21:55 UTC3h 10m
2026-05-28 EJA887 TCL → PWK May 28, 00:00 UTCMay 28, 00:55 UTC55m
2026-05-27 EJA887 TCL → PWK May 27, 20:15 UTCMay 27, 20:35 UTC20m
2026-05-27 EJA887 TCL → PWK May 27, 14:15 UTCMay 27, 19:15 UTC5h 0m
2026-05-27 EJA887 TCL → PWK May 27, 03:20 UTCMay 27, 05:35 UTC2h 15m
2026-05-27 EJA887 TCL → PWK May 27, 00:49 UTCMay 27, 02:19 UTC1h 30m
2026-05-25 EJA887 TCL → PWK May 25, 15:30 UTCMay 25, 15:50 UTC20m
2026-05-23 EJA887 TCL → PWK May 23, 20:00 UTCMay 23, 20:35 UTC35m
2026-05-23 EJA887 TCL → PWK May 23, 15:20 UTCMay 23, 16:50 UTC1h 30m
2026-05-23 EJA887 TCL → PWK May 23, 12:10 UTCMay 23, 12:20 UTC10m
2026-05-22 EJA887 TCL → PWK May 22, 15:05 UTCMay 22, 19:50 UTC4h 45m
2026-05-21 EJA887 TCL → PWK May 21, 18:45 UTCMay 22, 00:20 UTC5h 35m
2026-05-21 EJA887 TCL → PWK May 21, 02:40 UTCMay 21, 02:50 UTC10m
2026-05-20 EJA887 TCL → PWK May 20, 21:20 UTCMay 21, 01:20 UTC4h 0m
2026-05-20 EJA887 TCL → PWK May 20, 03:30 UTCMay 20, 04:55 UTC1h 26m
2026-05-20 EJA887 TCL → PWK May 20, 02:20 UTCMay 20, 02:55 UTC35m
2026-05-20 EJA887 TCL → PWK May 20, 00:30 UTCMay 20, 00:45 UTC15m
2026-05-19 EJA887 TCL → PWK May 19, 22:40 UTCMay 19, 23:30 UTC50m
2026-05-19 EJA887 TCL → PWK May 19, 20:30 UTCMay 19, 21:15 UTC45m
2026-05-19 EJA887 TCL → PWK May 19, 18:20 UTCMay 19, 18:40 UTC20m
2026-05-18 EJA887 TCL → PWK May 18, 21:55 UTCMay 18, 22:15 UTC20m
2026-05-18 EJA887 TCL → PWK May 18, 17:35 UTCMay 18, 18:30 UTC54m
2026-05-18 EJA887 TCL → PWK May 18, 15:10 UTCMay 18, 16:15 UTC1h 5m
2026-05-17 EJA887 TCL → PWK May 17, 20:20 UTCMay 18, 01:05 UTC4h 45m
2026-05-17 EJA887 TCL → PWK May 17, 16:35 UTCMay 17, 17:01 UTC25m
2026-05-17 EJA887 TCL → PWK May 17, 14:01 UTCMay 17, 15:45 UTC1h 45m
2026-05-16 EJA887 TCL → PWK May 16, 21:50 UTCMay 16, 22:50 UTC1h 0m
2026-05-16 EJA887 TCL → PWK May 16, 19:05 UTCMay 16, 19:50 UTC45m
2026-05-16 EJA887 TCL → PWK May 16, 17:01 UTCMay 16, 17:30 UTC30m
2026-05-15 EJA887 TCL → PWK May 15, 23:00 UTCMay 16, 02:10 UTC3h 10m
2026-05-15 EJA887 TCL → PWK May 15, 19:45 UTCMay 15, 21:50 UTC2h 5m
2026-05-15 EJA887 TCL → PWK May 15, 17:05 UTCMay 15, 18:05 UTC1h 0m
2026-05-15 EJA887 TCL → PWK May 15, 14:45 UTCMay 15, 15:55 UTC1h 9m
2026-05-15 EJA887 TCL → PWK May 15, 02:25 UTCMay 15, 06:30 UTC4h 5m
2026-05-14 EJA887 TCL → PWK May 14, 23:40 UTCMay 15, 01:10 UTC1h 30m
2026-05-14 EJA887 TCL → PWK May 14, 21:45 UTCMay 14, 22:15 UTC30m
2026-05-14 EJA887 TCL → PWK May 14, 15:15 UTCMay 14, 17:35 UTC2h 20m
2026-05-14 EJA887 TCL → PWK May 14, 13:15 UTCMay 14, 14:05 UTC50m
2026-05-13 EJA887 TCL → PWK May 13, 17:05 UTCMay 13, 20:20 UTC3h 15m
2026-05-13 EJA887 TCL → PWK May 13, 14:45 UTCMay 13, 15:05 UTC20m
2026-05-13 EJA887 TCL → PWK May 13, 00:10 UTCMay 13, 01:40 UTC1h 30m
2026-05-12 EJA887 TCL → PWK May 12, 19:25 UTCMay 12, 20:15 UTC50m
2026-05-12 EJA887 TCL → PWK May 12, 17:15 UTCMay 12, 18:40 UTC1h 25m
2026-05-12 EJA887 TCL → PWK May 12, 12:25 UTCMay 12, 13:35 UTC1h 10m
2026-05-11 EJA887 TCL → PWK May 11, 18:50 UTCMay 11, 21:30 UTC2h 40m
2026-05-11 EJA887 TCL → PWK May 11, 16:45 UTCMay 11, 17:05 UTC21m

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 N887QS page for operator, model, and routing details .

Mode-S AC3945 frequently asked

What is Mode-S code AC3945?
AC3945 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N887QS.
Where is Mode-S AC3945 registered?
Mode-S code AC3945 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 AC3945 broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC3945, octal 53034505, decimal 11,286,853.
What flights does AC3945 operate?
Mode-S AC3945 has broadcast 2 distinct callsigns, including EJA887, N887QS.