Apparatus

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sensors Mode-S transponder

ACE4BA

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N93QM · operated by AIRPLANE FACTORY INC

Hex
ACE4BA
Octal
53162272
Decimal
11,330,746
Country
US
Tail
N93QM
Type
SLG4
No current signal · last broadcast 6h ago
Flights observed
105
Distinct callsigns
1
Country
US
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S ACE4BA.

Country allocation

The ICAO 24-bit address ACE4BA 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
N93QM - 105 2026-05-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 N93QM - May 30, 04:45 UTCMay 30, 05:35 UTC50m
2026-05-30 N93QM - May 30, 03:40 UTCMay 30, 04:35 UTC55m
2026-05-29 N93QM SMO → SMO May 29, 22:40 UTCMay 30, 00:25 UTC1h 45m
2026-05-29 N93QM - May 29, 16:55 UTCMay 29, 17:50 UTC55m
2026-05-29 N93QM SMO → SMO May 29, 04:25 UTCMay 29, 04:30 UTC5m
2026-05-29 N93QM SMO → SMO May 29, 03:55 UTCMay 29, 04:00 UTC5m
2026-05-28 N93QM SMO → SMO May 28, 23:30 UTCMay 29, 00:45 UTC1h 15m
2026-05-28 N93QM SMO → SMO May 28, 21:10 UTCMay 28, 22:30 UTC1h 20m
2026-05-28 N93QM SMO → SMO May 28, 18:50 UTCMay 28, 19:45 UTC55m
2026-05-28 N93QM SMO → SMO May 28, 17:45 UTCMay 28, 17:55 UTC10m
2026-05-28 N93QM SMO → SMO May 28, 17:30 UTCMay 28, 17:35 UTC5m
2026-05-28 N93QM SMO → SMO May 28, 17:15 UTCMay 28, 17:20 UTC5m
2026-05-27 N93QM SMO → SMO May 27, 21:20 UTCMay 27, 22:35 UTC1h 15m
2026-05-27 N93QM SMO → SMO May 27, 18:55 UTCMay 27, 20:20 UTC1h 25m
2026-05-27 N93QM SMO → SMO May 27, 17:05 UTCMay 27, 17:55 UTC50m
2026-05-27 N93QM TOA → SMO May 27, 00:25 UTCMay 27, 00:39 UTC15m
2026-05-26 N93QM SMO → TOA May 26, 19:34 UTCMay 26, 19:50 UTC15m
2026-05-25 N93QM - May 25, 19:00 UTCMay 25, 19:54 UTC54m
2026-05-25 N93QM SMO → SMO May 25, 18:50 UTCMay 25, 18:55 UTC5m
2026-05-25 N93QM - May 25, 17:35 UTCMay 25, 18:05 UTC30m
2026-05-25 N93QM SMO → SMO May 25, 15:25 UTCMay 25, 16:50 UTC1h 25m
2026-05-22 N93QM SMO → SMO May 22, 22:50 UTCMay 22, 23:40 UTC50m
2026-05-22 N93QM SMO → SMO May 22, 20:55 UTCMay 22, 21:55 UTC1h 0m
2026-05-21 N93QM SMO → SMO May 21, 17:00 UTCMay 21, 17:45 UTC45m
2026-05-20 N93QM SMO → SMO May 20, 20:40 UTCMay 20, 22:15 UTC1h 35m
2026-05-20 N93QM SMO → SMO May 20, 17:55 UTCMay 20, 19:40 UTC1h 45m
2026-05-20 N93QM - May 20, 16:20 UTCMay 20, 17:15 UTC55m
2026-05-20 N93QM - May 20, 15:55 UTCMay 20, 16:15 UTC20m
2026-05-20 N93QM SMO → SBD May 20, 15:05 UTCMay 20, 15:50 UTC45m
2026-05-19 N93QM TOA → SMO May 19, 22:30 UTCMay 19, 22:50 UTC20m
2026-05-19 N93QM - May 19, 20:15 UTCMay 19, 21:10 UTC55m
2026-05-19 N93QM - May 19, 18:55 UTCMay 19, 19:20 UTC25m
2026-05-16 N93QM - May 16, 17:25 UTCMay 16, 18:15 UTC50m
2026-05-16 N93QM - May 16, 05:20 UTCMay 16, 06:20 UTC1h 1m
2026-05-16 N93QM - May 16, 03:40 UTCMay 16, 04:30 UTC50m
2026-05-13 N93QM SMO → SMO May 13, 00:35 UTCMay 13, 00:55 UTC20m
2026-05-12 N93QM SMO → SMO May 12, 23:45 UTCMay 13, 00:25 UTC40m
2026-05-09 N93QM SMO → SMO May 9, 19:49 UTCMay 9, 21:00 UTC1h 10m
2026-05-08 N93QM SMO → SMO May 8, 01:04 UTCMay 8, 01:49 UTC45m
2026-05-07 N93QM SMO → SMO May 7, 22:59 UTCMay 7, 23:59 UTC1h 0m
2026-05-07 N93QM - May 7, 20:40 UTCMay 7, 22:10 UTC1h 30m
2026-05-07 N93QM SMO → SMO May 7, 19:20 UTCMay 7, 19:55 UTC35m
2026-05-07 N93QM - May 7, 19:05 UTCMay 7, 19:15 UTC10m
2026-05-07 N93QM SMO → SMO May 7, 18:40 UTCMay 7, 19:00 UTC20m
2026-05-07 N93QM SMO → SMO May 7, 16:35 UTCMay 7, 17:45 UTC1h 10m
2026-05-07 N93QM RBK → SMO May 7, 04:20 UTCMay 7, 05:20 UTC1h 0m
2026-05-07 N93QM SMO → RBK May 7, 01:25 UTCMay 7, 02:30 UTC1h 5m
2026-05-06 N93QM - May 6, 23:25 UTCMay 6, 23:40 UTC15m
2026-05-06 N93QM SMO → SMO May 6, 23:00 UTCMay 6, 23:20 UTC20m
2026-05-06 N93QM SMO → SMO May 6, 22:45 UTCMay 6, 22:55 UTC10m

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 N93QM page for operator, model, and routing details .

Mode-S ACE4BA frequently asked

What is Mode-S code ACE4BA?
ACE4BA is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N93QM.
Where is Mode-S ACE4BA registered?
Mode-S code ACE4BA 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 ACE4BA broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACE4BA, octal 53162272, decimal 11,330,746.
What flights does ACE4BA operate?
Mode-S ACE4BA has broadcast 1 distinct callsign, including N93QM.