Apparatus

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sensors Mode-S transponder

A6A856

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N528TG · DAHER Kodiak 100 · operated by NORTHWARD BOUND LLC

Hex
A6A856
Octal
51524126
Decimal
10,922,070
Country
US
Tail
N528TG
Type
K100
No current signal · last broadcast 4d ago
Flights observed
44
Distinct callsigns
1
Country
US
Last broadcast
4d ago

Last known position

Most recent position reported by Mode-S A6A856.

Country allocation

The ICAO 24-bit address A6A856 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
N528TG - 44 2026-06-26

Recent flights last 44

DateFlightRouteTakeoffLandingDuration
2026-06-26 N528TG - Jun 26, 05:05 UTCJun 26, 05:39 UTC35m
2026-06-26 N528TG - Jun 26, 03:15 UTCJun 26, 03:50 UTC35m
2026-06-23 N528TG - Jun 23, 22:05 UTCJun 23, 22:44 UTC40m
2026-06-23 N528TG - Jun 23, 20:04 UTCJun 23, 20:40 UTC35m
2026-06-23 N528TG - Jun 23, 18:50 UTCJun 23, 19:29 UTC40m
2026-06-23 N528TG - Jun 23, 17:30 UTCJun 23, 18:04 UTC35m
2026-06-20 N528TG - Jun 20, 23:04 UTCJun 20, 23:14 UTC10m
2026-06-20 N528TG - Jun 20, 22:45 UTCJun 20, 22:59 UTC15m
2026-06-20 N528TG - Jun 20, 22:25 UTCJun 20, 22:35 UTC10m
2026-06-20 N528TG - Jun 20, 21:19 UTCJun 20, 22:20 UTC1h 0m
2026-06-20 N528TG - Jun 20, 18:40 UTCJun 20, 19:15 UTC35m
2026-06-19 N528TG - Jun 19, 02:09 UTCJun 19, 02:54 UTC45m
2026-06-19 N528TG - Jun 19, 00:00 UTCJun 19, 00:29 UTC29m
2026-06-18 N528TG - Jun 18, 22:55 UTCJun 18, 23:00 UTC5m
2026-06-18 N528TG - Jun 18, 19:35 UTCJun 18, 20:20 UTC45m
2026-06-16 N528TG - Jun 16, 22:15 UTCJun 16, 22:50 UTC35m
2026-06-16 N528TG - Jun 16, 17:00 UTCJun 16, 17:35 UTC35m
2026-06-15 N528TG - Jun 15, 18:04 UTCJun 15, 18:45 UTC40m
2026-06-15 N528TG - Jun 15, 16:49 UTCJun 15, 17:25 UTC35m
2026-06-14 N528TG - Jun 14, 04:25 UTCJun 14, 05:05 UTC40m
2026-06-14 N528TG - Jun 14, 03:10 UTCJun 14, 03:40 UTC30m
2026-06-14 N528TG - Jun 14, 01:30 UTCJun 14, 02:00 UTC30m
2026-06-13 N528TG - Jun 13, 23:55 UTCJun 14, 00:25 UTC30m
2026-06-11 N528TG - Jun 11, 01:50 UTCJun 11, 02:30 UTC40m
2026-06-11 N528TG - Jun 11, 00:05 UTCJun 11, 00:35 UTC30m
2026-06-09 N528TG - Jun 9, 01:45 UTCJun 9, 02:25 UTC40m
2026-06-09 N528TG - Jun 9, 00:00 UTCJun 9, 00:35 UTC35m
2026-06-08 N528TG - Jun 8, 01:40 UTCJun 8, 02:20 UTC40m
2026-06-08 N528TG - Jun 8, 00:05 UTCJun 8, 00:40 UTC35m
2026-06-07 N528TG - Jun 7, 02:00 UTCJun 7, 02:40 UTC40m
2026-06-07 N528TG - Jun 7, 00:14 UTCJun 7, 00:44 UTC30m
2026-06-06 N528TG - Jun 6, 01:35 UTCJun 6, 02:10 UTC35m
2026-06-06 N528TG - Jun 6, 00:00 UTCJun 6, 00:30 UTC30m
2026-06-05 N528TG - Jun 5, 01:35 UTCJun 5, 02:05 UTC30m
2026-06-04 N528TG - Jun 4, 23:50 UTCJun 5, 00:20 UTC30m
2026-06-04 N528TG - Jun 4, 00:55 UTCJun 4, 01:25 UTC30m
2026-06-03 N528TG - Jun 3, 23:00 UTCJun 3, 23:35 UTC35m
2026-05-28 N528TG - May 28, 19:35 UTCMay 28, 20:05 UTC30m
2026-05-28 N528TG - May 28, 18:00 UTCMay 28, 18:30 UTC30m
2026-05-27 N528TG - May 27, 20:05 UTCMay 27, 20:45 UTC40m
2026-05-27 N528TG - May 27, 18:35 UTCMay 27, 19:10 UTC35m
2026-05-24 N528TG - May 24, 02:10 UTCMay 24, 02:50 UTC40m
2026-05-23 N528TG - May 23, 22:10 UTCMay 23, 22:45 UTC35m
2026-04-27 N528TG WWA → ANC Apr 27, 18:05 UTCApr 27, 18:35 UTC30m

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 N528TG page for operator, model, and routing details .

Mode-S A6A856 frequently asked

What is Mode-S code A6A856?
A6A856 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N528TG.
Where is Mode-S A6A856 registered?
Mode-S code A6A856 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 A6A856 broadcasting right now?
No active broadcast right now. Last signal was 4d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A6A856, octal 51524126, decimal 10,922,070.
What flights does A6A856 operate?
Mode-S A6A856 has broadcast 1 distinct callsign, including N528TG.