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sensors Mode-S transponder

A6CB2B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N537HP · CESSNA T182 Turbo Skylane · operated by BARR AIR PATROL LLC

Hex
A6CB2B
Octal
51545453
Decimal
10,930,987
Country
US
Tail
N537HP
Type
C82S
No current signal · last broadcast Jul 22, 20:35 UTC
Flights observed
48
Distinct callsigns
1
Country
US
Last broadcast
Jul 22, 20:35 UTC

Last known position

Most recent position reported by Mode-S A6CB2B.

Country allocation

The ICAO 24-bit address A6CB2B 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
N537HP - 48 2026-07-22

Recent flights last 48

DateFlightRouteTakeoffLandingDuration
2026-07-22 N537HP - Jul 22, 19:35 UTCJul 22, 20:35 UTC1h 0m
2026-07-22 N537HP - Jul 22, 17:30 UTCJul 22, 18:55 UTC1h 25m
2026-07-20 N537HP - Jul 20, 19:30 UTCJul 20, 20:25 UTC55m
2026-07-20 N537HP - Jul 20, 14:25 UTCJul 20, 15:20 UTC55m
2026-07-15 N537HP - Jul 15, 23:00 UTCJul 15, 23:50 UTC50m
2026-07-13 N537HP - Jul 13, 19:45 UTCJul 13, 20:35 UTC50m
2026-07-13 N537HP - Jul 13, 15:15 UTCJul 13, 16:50 UTC1h 35m
2026-07-11 N537HP - Jul 11, 18:50 UTCJul 11, 19:35 UTC45m
2026-07-10 N537HP - Jul 10, 19:10 UTCJul 10, 20:00 UTC50m
2026-07-01 N537HP - Jul 1, 18:05 UTCJul 1, 18:55 UTC50m
2026-06-29 N537HP - Jun 29, 17:45 UTCJun 29, 17:59 UTC15m
2026-06-29 N537HP - Jun 29, 13:44 UTCJun 29, 15:04 UTC1h 20m
2026-06-25 N537HP - Jun 25, 18:00 UTCJun 25, 20:39 UTC2h 40m
2026-06-23 N537HP - Jun 23, 18:14 UTCJun 23, 19:15 UTC1h 0m
2026-06-23 N537HP - Jun 23, 11:59 UTCJun 23, 12:40 UTC40m
2026-06-19 N537HP - Jun 19, 19:59 UTCJun 19, 22:39 UTC2h 40m
2026-06-17 N537HP - Jun 17, 12:15 UTCJun 17, 13:25 UTC1h 10m
2026-06-16 N537HP - Jun 16, 11:45 UTCJun 16, 12:14 UTC30m
2026-06-15 N537HP - Jun 15, 20:40 UTCJun 15, 21:09 UTC30m
2026-06-15 N537HP - Jun 15, 18:35 UTCJun 15, 18:50 UTC15m
2026-06-15 N537HP - Jun 15, 14:34 UTCJun 15, 15:19 UTC45m
2026-05-30 N537HP - May 30, 20:05 UTCMay 30, 21:05 UTC1h 0m
2026-05-30 N537HP - May 30, 18:30 UTCMay 30, 19:35 UTC1h 5m
2026-05-28 N537HP - May 28, 19:00 UTCMay 28, 20:10 UTC1h 10m
2026-05-22 N537HP - May 22, 19:20 UTCMay 22, 20:40 UTC1h 20m
2026-05-22 N537HP - May 22, 17:45 UTCMay 22, 18:00 UTC15m
2026-05-13 N537HP - May 13, 13:45 UTCMay 13, 15:10 UTC1h 25m
2026-05-13 N537HP - May 13, 12:15 UTCMay 13, 13:10 UTC55m
2026-05-12 N537HP - May 12, 14:40 UTCMay 12, 14:55 UTC15m
2026-05-07 N537HP - May 7, 13:40 UTCMay 7, 14:55 UTC1h 15m
2026-05-06 N537HP - May 6, 15:40 UTCMay 6, 18:05 UTC2h 24m
2026-05-04 N537HP - May 4, 13:55 UTCMay 4, 15:20 UTC1h 25m
2026-04-30 N537HP - Apr 30, 15:15 UTCApr 30, 16:30 UTC1h 15m
2026-04-28 N537HP - Apr 28, 20:10 UTCApr 28, 20:35 UTC25m
2026-04-28 N537HP - Apr 28, 18:50 UTCApr 28, 19:00 UTC10m
2026-04-28 N537HP - Apr 28, 15:45 UTCApr 28, 17:00 UTC1h 15m
2026-04-28 N537HP - Apr 28, 14:30 UTCApr 28, 15:00 UTC30m
2026-04-27 N537HP - Apr 27, 21:00 UTCApr 27, 21:10 UTC10m
2026-04-27 N537HP - Apr 27, 19:50 UTCApr 27, 20:30 UTC40m
2026-04-27 N537HP - Apr 27, 14:30 UTCApr 27, 15:00 UTC30m
2026-04-23 N537HP - Apr 23, 16:50 UTCApr 23, 17:50 UTC1h 0m
2026-04-22 N537HP - Apr 22, 21:15 UTCApr 22, 21:55 UTC40m
2026-04-14 N537HP - Apr 14, 22:00 UTCApr 14, 22:40 UTC40m
2026-04-14 N537HP - Apr 14, 14:50 UTCApr 14, 16:05 UTC1h 15m
2026-04-14 N537HP - Apr 14, 14:25 UTCApr 14, 14:45 UTC20m
2026-04-13 N537HP - Apr 13, 20:25 UTCApr 13, 20:55 UTC30m
2026-04-13 N537HP - Apr 13, 19:45 UTCApr 13, 19:55 UTC10m
2026-04-13 N537HP - Apr 13, 19:10 UTCApr 13, 19:55 UTC45m

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 N537HP page for operator, model, and routing details .

Mode-S A6CB2B frequently asked

What is Mode-S code A6CB2B?
A6CB2B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N537HP.
Where is Mode-S A6CB2B registered?
Mode-S code A6CB2B 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 A6CB2B broadcasting right now?
No active broadcast right now. Last signal was Jul 22, 20:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A6CB2B, octal 51545453, decimal 10,930,987.
What flights does A6CB2B operate?
Mode-S A6CB2B has broadcast 1 distinct callsign, including N537HP.