Apparatus

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sensors Mode-S transponder

ACE97C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N931BC · operated by BANK OF UTAH TRUSTEE

Hex
ACE97C
Octal
53164574
Decimal
11,331,964
Country
US
Tail
N931BC
Type
SF34
No current signal · last broadcast 10d ago
Flights observed
113
Distinct callsigns
20
Country
US
Last broadcast
10d ago

Last known position

Most recent position reported by Mode-S ACE97C.

Country allocation

The ICAO 24-bit address ACE97C 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 20 distinct

Callsign Airline Flights Last seen
CSQ211 - 23 2026-06-30
CSQ212 - 21 2026-06-30
CSQ834 IBC Airways 8 2026-06-20
CSQ833 - 8 2026-06-20
CSQ344 - 8 2026-07-03
CSQ343 - 7 2026-07-03
CSQ812 IBC Airways 4 2026-06-20
CSQ811 IBC Airways 4 2026-06-20
CSQ104 IBC Airways 4 2026-06-19
CSQ103 - 4 2026-06-19
CSQ814 IBC Airways 3 2026-05-22
CSQ813 IBC Airways 3 2026-05-22
CSQ705 IBC Airways 3 2026-05-26
CSQ931 - 2 2026-05-21
CSQ706 IBC Airways 2 2026-05-15
CSQ102 IBC Airways 2 2026-06-04
CSQ101 IBC Airways 2 2026-06-04
CSQ726 - 1 2026-06-18
CSQ7060 - 1 2026-05-26
CSQ345 IBC Airways 1 2026-06-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-03 CSQ344 - Jul 3, 20:35 UTCJul 3, 21:10 UTC35m
2026-07-03 CSQ343 - Jul 3, 15:40 UTCJul 3, 16:15 UTC35m
2026-07-02 CSQ344 - Jul 2, 21:20 UTCJul 2, 21:55 UTC35m
2026-07-02 CSQ343 - Jul 2, 15:35 UTCJul 2, 16:15 UTC40m
2026-07-01 CSQ344 - Jul 1, 20:50 UTCJul 1, 21:15 UTC25m
2026-07-01 CSQ343 - Jul 1, 15:35 UTCJul 1, 16:05 UTC30m
2026-06-30 CSQ212 - Jun 30, 23:25 UTCJul 1, 00:00 UTC35m
2026-06-30 CSQ211 - Jun 30, 15:35 UTCJun 30, 16:10 UTC35m
2026-06-29 CSQ212 - Jun 29, 23:44 UTCJun 30, 00:25 UTC40m
2026-06-29 CSQ211 - Jun 29, 14:29 UTCJun 29, 15:09 UTC40m
2026-06-26 CSQ212 - Jun 26, 23:55 UTCJun 27, 00:20 UTC25m
2026-06-26 CSQ211 - Jun 26, 15:49 UTCJun 26, 16:30 UTC40m
2026-06-25 CSQ212 - Jun 25, 23:30 UTCJun 26, 00:05 UTC35m
2026-06-25 CSQ211 - Jun 25, 15:34 UTCJun 25, 16:09 UTC35m
2026-06-24 CSQ212 - Jun 24, 23:29 UTCJun 25, 00:09 UTC40m
2026-06-24 CSQ211 - Jun 24, 15:44 UTCJun 24, 16:24 UTC40m
2026-06-23 CSQ212 - Jun 23, 23:29 UTCJun 24, 00:05 UTC35m
2026-06-23 CSQ211 - Jun 23, 15:40 UTCJun 23, 16:14 UTC35m
2026-06-22 CSQ212 - Jun 22, 23:29 UTCJun 23, 00:04 UTC35m
2026-06-22 CSQ211 - Jun 22, 14:24 UTCJun 22, 15:05 UTC40m
2026-06-20 CSQ812 SNU → MIA Jun 20, 19:15 UTCJun 20, 19:55 UTC40m
2026-06-20 CSQ811 MIA → SNU Jun 20, 16:55 UTCJun 20, 17:34 UTC40m
2026-06-20 CSQ834 CFG → MIA Jun 20, 14:44 UTCJun 20, 15:14 UTC30m
2026-06-20 CSQ833 - Jun 20, 12:30 UTCJun 20, 13:04 UTC35m
2026-06-19 CSQ104 FPO → MIA Jun 19, 17:55 UTCJun 19, 18:25 UTC30m
2026-06-19 CSQ103 - Jun 19, 15:34 UTCJun 19, 15:54 UTC20m
2026-06-18 CSQ726 - Jun 18, 19:10 UTCJun 18, 19:45 UTC35m
2026-06-18 CSQ211 - Jun 18, 13:45 UTCJun 18, 14:20 UTC35m
2026-06-17 CSQ212 - Jun 17, 23:35 UTCJun 18, 00:10 UTC35m
2026-06-17 CSQ211 - Jun 17, 15:50 UTCJun 17, 16:35 UTC45m
2026-06-16 CSQ344 - Jun 16, 20:55 UTCJun 16, 21:30 UTC35m
2026-06-16 CSQ345 MIA → PLS Jun 16, 15:30 UTCJun 16, 16:05 UTC35m
2026-06-15 CSQ106 - Jun 15, 17:10 UTCJun 15, 17:34 UTC25m
2026-06-15 CSQ105 - Jun 15, 15:30 UTCJun 15, 15:55 UTC25m
2026-06-12 CSQ212 GCM → MIA Jun 12, 23:25 UTCJun 13, 00:00 UTC35m
2026-06-12 CSQ211 - Jun 12, 15:35 UTCJun 12, 16:15 UTC40m
2026-06-11 CSQ212 GCM → MIA Jun 11, 23:45 UTCJun 12, 00:10 UTC25m
2026-06-11 CSQ211 MIA → GCM Jun 11, 15:50 UTCJun 11, 16:20 UTC30m
2026-06-10 CSQ212 GCM → MIA Jun 10, 23:05 UTCJun 10, 23:50 UTC45m
2026-06-10 CSQ211 MIA → GCM Jun 10, 16:00 UTCJun 10, 16:40 UTC40m
2026-06-09 CSQ344 PLS → MIA Jun 9, 20:45 UTCJun 9, 21:15 UTC30m
2026-06-09 CSQ343 MIA → PLS Jun 9, 15:25 UTCJun 9, 15:50 UTC25m
2026-06-08 CSQ104 FPO → MIA Jun 8, 20:20 UTCJun 8, 20:50 UTC30m
2026-06-08 CSQ103 MIA → FPO Jun 8, 18:45 UTCJun 8, 19:00 UTC15m
2026-06-08 CSQ834 CFG → MIA Jun 8, 17:00 UTCJun 8, 17:30 UTC30m
2026-06-08 CSQ833 MIA → CFG Jun 8, 14:25 UTCJun 8, 14:50 UTC25m
2026-06-06 CSQ812 SNU → MIA Jun 6, 16:24 UTCJun 6, 17:00 UTC35m
2026-06-06 CSQ811 MIA → SNU Jun 6, 14:00 UTCJun 6, 14:34 UTC35m
2026-06-05 CSQ212 GCM → MIA Jun 5, 23:35 UTCJun 6, 00:15 UTC40m
2026-06-05 CSQ211 MIA → GCM Jun 5, 15:40 UTCJun 5, 16:20 UTC40m

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 N931BC page for operator, model, and routing details .

Mode-S ACE97C frequently asked

What is Mode-S code ACE97C?
ACE97C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N931BC.
Where is Mode-S ACE97C registered?
Mode-S code ACE97C 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 ACE97C broadcasting right now?
No active broadcast right now. Last signal was 10d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACE97C, octal 53164574, decimal 11,331,964.
What flights does ACE97C operate?
Mode-S ACE97C has broadcast 20 distinct callsigns, including CSQ211, CSQ212, CSQ834, CSQ833, CSQ344.