Apparatus

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sensors Mode-S transponder

A6BB6F

ICAO 24-bit transponder address · allocated to United States

Hex
A6BB6F
Octal
51535557
Decimal
10,926,959
Country
US
No current signal · last broadcast Jul 25, 01:40 UTC
Flights observed
88
Distinct callsigns
1
Country
US
Last broadcast
Jul 25, 01:40 UTC

Last known position

Most recent position reported by Mode-S A6BB6F.

Country allocation

The ICAO 24-bit address A6BB6F 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
N5329A - 88 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 N5329A - Jul 25, 01:15 UTCJul 25, 01:40 UTC25m
2026-07-24 N5329A - Jul 24, 21:45 UTCJul 24, 22:15 UTC30m
2026-07-21 N5329A - Jul 21, 23:40 UTCJul 22, 00:40 UTC1h 0m
2026-07-21 N5329A - Jul 21, 00:00 UTCJul 21, 01:00 UTC1h 0m
2026-07-17 N5329A - Jul 17, 16:34 UTCJul 17, 17:20 UTC45m
2026-07-17 N5329A - Jul 17, 11:45 UTCJul 17, 12:35 UTC50m
2026-07-16 N5329A - Jul 16, 19:50 UTCJul 16, 21:45 UTC1h 55m
2026-07-16 N5329A - Jul 16, 15:40 UTCJul 16, 17:35 UTC1h 55m
2026-07-15 N5329A - Jul 15, 19:55 UTCJul 16, 01:30 UTC5h 35m
2026-07-14 N5329A - Jul 14, 22:25 UTCJul 15, 00:30 UTC2h 4m
2026-07-14 N5329A - Jul 14, 19:00 UTCJul 14, 21:45 UTC2h 45m
2026-07-13 N5329A - Jul 13, 23:00 UTCJul 13, 23:50 UTC50m
2026-07-09 N5329A - Jul 9, 18:45 UTCJul 9, 22:15 UTC3h 30m
2026-07-08 N5329A - Jul 8, 19:15 UTCJul 8, 22:20 UTC3h 5m
2026-07-06 N5329A - Jul 6, 17:40 UTCJul 6, 20:45 UTC3h 5m
2026-07-06 N5329A - Jul 6, 15:10 UTCJul 6, 16:40 UTC1h 30m
2026-07-06 N5329A - Jul 6, 13:55 UTCJul 6, 14:30 UTC35m
2026-07-04 N5329A - Jul 4, 13:45 UTCJul 4, 15:05 UTC1h 20m
2026-07-03 N5329A - Jul 3, 19:45 UTCJul 3, 20:20 UTC35m
2026-07-03 N5329A - Jul 3, 16:50 UTCJul 3, 17:40 UTC50m
2026-06-29 N5329A - Jun 29, 20:44 UTCJun 29, 22:05 UTC1h 20m
2026-06-29 N5329A - Jun 29, 18:44 UTCJun 29, 20:04 UTC1h 20m
2026-06-29 N5329A - Jun 29, 02:45 UTCJun 29, 04:50 UTC2h 5m
2026-06-29 N5329A - Jun 29, 01:10 UTCJun 29, 01:55 UTC45m
2026-06-29 N5329A - Jun 29, 00:05 UTCJun 29, 00:14 UTC10m
2026-06-28 N5329A - Jun 28, 19:44 UTCJun 28, 20:45 UTC1h 0m
2026-06-28 N5329A - Jun 28, 18:29 UTCJun 28, 19:14 UTC45m
2026-06-26 N5329A - Jun 26, 20:15 UTCJun 26, 20:44 UTC30m
2026-06-26 N5329A - Jun 26, 11:49 UTCJun 26, 12:14 UTC25m
2026-06-24 N5329A - Jun 24, 21:34 UTCJun 24, 23:10 UTC1h 35m
2026-06-24 N5329A - Jun 24, 20:20 UTCJun 24, 20:35 UTC15m
2026-06-24 N5329A - Jun 24, 18:29 UTCJun 24, 18:55 UTC25m
2026-06-24 N5329A - Jun 24, 16:59 UTCJun 24, 17:40 UTC40m
2026-06-24 N5329A - Jun 24, 12:20 UTCJun 24, 14:20 UTC2h 0m
2026-06-22 N5329A - Jun 22, 22:10 UTCJun 22, 23:20 UTC1h 10m
2026-06-22 N5329A - Jun 22, 18:24 UTCJun 22, 19:14 UTC50m
2026-06-22 N5329A - Jun 22, 13:49 UTCJun 22, 15:35 UTC1h 45m
2026-06-17 N5329A - Jun 17, 17:55 UTCJun 17, 18:50 UTC55m
2026-06-17 N5329A - Jun 17, 14:15 UTCJun 17, 16:05 UTC1h 50m
2026-06-14 N5329A - Jun 14, 23:00 UTCJun 15, 00:55 UTC1h 54m
2026-06-14 N5329A - Jun 14, 21:10 UTCJun 14, 21:40 UTC30m
2026-06-14 N5329A - Jun 14, 19:50 UTCJun 14, 20:25 UTC35m
2026-06-11 N5329A - Jun 11, 16:55 UTCJun 11, 17:15 UTC20m
2026-06-11 N5329A - Jun 11, 15:55 UTCJun 11, 16:20 UTC25m
2026-06-11 N5329A - Jun 11, 03:00 UTCJun 11, 03:25 UTC25m
2026-06-11 N5329A - Jun 11, 00:00 UTCJun 11, 01:30 UTC1h 30m
2026-06-10 N5329A - Jun 10, 20:35 UTCJun 10, 21:10 UTC35m
2026-06-10 N5329A - Jun 10, 02:30 UTCJun 10, 03:10 UTC40m
2026-06-10 N5329A - Jun 10, 00:55 UTCJun 10, 02:00 UTC1h 5m
2026-06-09 N5329A - Jun 9, 21:35 UTCJun 9, 23:25 UTC1h 50m

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.

Mode-S A6BB6F frequently asked

What is Mode-S code A6BB6F?
A6BB6F is an ICAO 24-bit transponder address. Allocated to United States.
Where is Mode-S A6BB6F registered?
Mode-S code A6BB6F 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 A6BB6F broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 01:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A6BB6F, octal 51535557, decimal 10,926,959.
What flights does A6BB6F operate?
Mode-S A6BB6F has broadcast 1 distinct callsign, including N5329A.