sensors Mode-S transponder

ACC4BC

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N92131 · CESSNA 172 Skyhawk · operated by CAVU FLYERS OF LONG ISLAND INC

Hex
ACC4BC
Octal
53142274
Decimal
11,322,556
Country
US
Tail
N92131
Type
C172
No current signal · last broadcast 8h ago
Flights observed
34
Distinct callsigns
1
Country
US
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S ACC4BC.

Country allocation

The ICAO 24-bit address ACC4BC 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
N92131 - 34 2026-05-29

Recent flights last 34

DateFlightRouteTakeoffLandingDuration
2026-05-29 N92131 - May 29, 17:20 UTCMay 29, 17:50 UTC30m
2026-05-29 N92131 - May 29, 14:45 UTCMay 29, 15:40 UTC55m
2026-05-28 N92131 ISP → ISP May 28, 21:15 UTCMay 28, 22:35 UTC1h 20m
2026-05-26 N92131 - May 26, 22:20 UTCMay 26, 22:59 UTC40m
2026-05-22 N92131 - May 22, 23:05 UTCMay 22, 23:50 UTC45m
2026-05-22 N92131 - May 22, 19:45 UTCMay 22, 20:40 UTC55m
2026-05-22 N92131 - May 22, 13:55 UTCMay 22, 14:15 UTC20m
2026-05-22 N92131 - May 22, 12:30 UTCMay 22, 12:45 UTC15m
2026-05-19 N92131 - May 19, 17:00 UTCMay 19, 18:30 UTC1h 30m
2026-05-17 N92131 - May 17, 23:55 UTCMay 18, 00:50 UTC55m
2026-05-17 N92131 - May 17, 20:25 UTCMay 17, 21:25 UTC1h 0m
2026-05-16 N92131 - May 16, 18:00 UTCMay 16, 19:20 UTC1h 20m
2026-05-16 N92131 - May 16, 14:25 UTCMay 16, 15:25 UTC1h 0m
2026-05-15 N92131 ISP → ISP May 15, 23:05 UTCMay 16, 00:20 UTC1h 15m
2026-05-15 N92131 - May 15, 18:25 UTCMay 15, 19:00 UTC35m
2026-05-12 N92131 - May 12, 21:10 UTCMay 12, 22:05 UTC55m
2026-05-09 N92131 - May 9, 03:05 UTCMay 9, 04:15 UTC1h 10m
2026-05-08 N92131 - May 8, 23:35 UTCMay 9, 00:50 UTC1h 15m
2026-05-08 N92131 - May 8, 20:30 UTCMay 8, 21:40 UTC1h 10m
2026-05-08 N92131 - May 8, 16:50 UTCMay 8, 17:25 UTC35m
2026-05-03 N92131 ISP → ISP May 3, 14:50 UTCMay 3, 15:25 UTC35m
2026-05-02 N92131 - May 2, 14:20 UTCMay 2, 15:20 UTC1h 0m
2026-05-01 N92131 ISP → ISP May 1, 15:05 UTCMay 1, 15:50 UTC45m
2026-04-28 N92131 - Apr 28, 21:10 UTCApr 28, 22:20 UTC1h 10m
2026-04-26 N92131 - Apr 26, 15:40 UTCApr 26, 16:25 UTC45m
2026-04-25 N92131 - Apr 25, 14:15 UTCApr 25, 15:20 UTC1h 5m
2026-04-24 N92131 - Apr 24, 21:30 UTCApr 24, 22:20 UTC50m
2026-04-24 N92131 - Apr 24, 19:15 UTCApr 24, 20:10 UTC55m
2026-04-22 N92131 - Apr 22, 20:50 UTCApr 22, 21:50 UTC1h 0m
2026-04-21 N92131 - Apr 21, 21:10 UTCApr 21, 21:55 UTC45m
2026-04-17 N92131 - Apr 17, 15:20 UTCApr 17, 16:50 UTC1h 30m
2026-04-16 N92131 - Apr 16, 21:14 UTCApr 16, 22:34 UTC1h 20m
2026-04-14 N92131 - Apr 14, 21:00 UTCApr 14, 22:00 UTC1h 0m
2026-04-12 N92131 - Apr 12, 17:15 UTCApr 12, 17:35 UTC20m

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 N92131 page for operator, model, and routing details .

Mode-S ACC4BC frequently asked

What is Mode-S code ACC4BC?
ACC4BC is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N92131.
Where is Mode-S ACC4BC registered?
Mode-S code ACC4BC 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 ACC4BC 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 ACC4BC, octal 53142274, decimal 11,322,556.
What flights does ACC4BC operate?
Mode-S ACC4BC has broadcast 1 distinct callsign, including N92131.