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sensors Mode-S transponder

AC279B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8820 · DE HAVILLAND DHC-2 Beaver · operated by GOODING LAKE AVIATION LLC

Hex
AC279B
Octal
53023633
Decimal
11,282,331
Country
US
Tail
N8820
Type
DHC2
No current signal · last broadcast Jul 26, 21:45 UTC
Flights observed
38
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 21:45 UTC

Last known position

Most recent position reported by Mode-S AC279B.

Country allocation

The ICAO 24-bit address AC279B 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
N8820 - 38 2026-07-26

Recent flights last 38

DateFlightRouteTakeoffLandingDuration
2026-07-26 N8820 - Jul 26, 21:15 UTCJul 26, 21:45 UTC30m
2026-07-26 N8820 - Jul 26, 19:40 UTCJul 26, 20:15 UTC35m
2026-07-26 N8820 - Jul 26, 18:10 UTCJul 26, 19:05 UTC55m
2026-07-24 N8820 - Jul 24, 00:00 UTCJul 24, 00:40 UTC40m
2026-07-22 N8820 - Jul 22, 21:05 UTCJul 22, 21:20 UTC15m
2026-07-22 N8820 - Jul 22, 20:50 UTCJul 22, 21:00 UTC10m
2026-07-22 N8820 - Jul 22, 20:35 UTCJul 22, 20:45 UTC10m
2026-07-22 N8820 - Jul 22, 19:45 UTCJul 22, 20:05 UTC20m
2026-07-06 N8820 - Jul 6, 04:50 UTCJul 6, 05:40 UTC50m
2026-07-06 N8820 - Jul 6, 00:45 UTCJul 6, 00:55 UTC10m
2026-07-05 N8820 - Jul 5, 22:40 UTCJul 5, 23:15 UTC35m
2026-07-05 N8820 - Jul 5, 18:50 UTCJul 5, 19:10 UTC20m
2026-07-05 N8820 - Jul 5, 01:20 UTCJul 5, 01:50 UTC30m
2026-07-04 N8820 - Jul 4, 19:40 UTCJul 4, 20:25 UTC45m
2026-07-03 N8820 - Jul 3, 23:50 UTCJul 4, 00:50 UTC1h 0m
2026-07-03 N8820 - Jul 3, 20:00 UTCJul 3, 20:15 UTC15m
2026-07-03 N8820 - Jul 3, 18:35 UTCJul 3, 19:20 UTC45m
2026-06-21 N8820 - Jun 21, 03:44 UTCJun 21, 04:24 UTC40m
2026-06-21 N8820 - Jun 21, 02:35 UTCJun 21, 03:10 UTC35m
2026-06-21 N8820 - Jun 21, 01:55 UTCJun 21, 02:04 UTC10m
2026-06-20 N8820 - Jun 20, 22:50 UTCJun 20, 23:50 UTC1h 0m
2026-06-20 N8820 - Jun 20, 19:55 UTCJun 20, 20:29 UTC35m
2026-06-19 N8820 - Jun 19, 17:09 UTCJun 19, 18:25 UTC1h 15m
2026-06-19 N8820 - Jun 19, 15:54 UTCJun 19, 16:34 UTC40m
2026-06-17 N8820 - Jun 17, 17:50 UTCJun 17, 18:30 UTC40m
2026-06-17 N8820 - Jun 17, 16:40 UTCJun 17, 17:15 UTC35m
2026-06-17 N8820 - Jun 17, 00:05 UTCJun 17, 00:10 UTC5m
2026-06-16 N8820 - Jun 16, 23:45 UTCJun 16, 23:50 UTC5m
2026-06-16 N8820 - Jun 16, 23:20 UTCJun 16, 23:30 UTC10m
2026-06-16 N8820 - Jun 16, 20:35 UTCJun 16, 20:40 UTC5m
2026-06-16 N8820 - Jun 16, 19:19 UTCJun 16, 19:25 UTC5m
2026-06-16 N8820 - Jun 16, 19:00 UTCJun 16, 19:05 UTC5m
2026-06-16 N8820 - Jun 16, 00:40 UTCJun 16, 00:45 UTC5m
2026-06-15 N8820 - Jun 15, 21:04 UTCJun 15, 21:30 UTC25m
2026-06-10 N8820 - Jun 10, 21:00 UTCJun 10, 22:35 UTC1h 35m
2026-06-01 N8820 - Jun 1, 21:40 UTCJun 1, 22:20 UTC40m
2026-05-18 N8820 - May 18, 21:55 UTCMay 18, 22:50 UTC55m
2026-05-18 N8820 - May 18, 19:20 UTCMay 18, 19:35 UTC15m

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 N8820 page for operator, model, and routing details .

Mode-S AC279B frequently asked

What is Mode-S code AC279B?
AC279B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8820.
Where is Mode-S AC279B registered?
Mode-S code AC279B 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 AC279B broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC279B, octal 53023633, decimal 11,282,331.
What flights does AC279B operate?
Mode-S AC279B has broadcast 1 distinct callsign, including N8820.