Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A63879

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N50KA · DE HAVILLAND DHC-3 Otter · operated by KENMORE AIR HARBOR LLC

Hex
A63879
Octal
51434171
Decimal
10,893,433
Country
US
Tail
N50KA
Type
DHC3
No current signal · last broadcast 3h ago
Flights observed
97
Distinct callsigns
1
Country
US
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S A63879.

Country allocation

The ICAO 24-bit address A63879 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
N50KA - 97 2026-06-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-26 N50KA LKE → KEH Jun 26, 23:44 UTCJun 26, 23:55 UTC10m
2026-06-26 N50KA - Jun 26, 22:44 UTCJun 26, 23:25 UTC40m
2026-06-26 N50KA - Jun 26, 21:39 UTCJun 26, 22:14 UTC35m
2026-06-26 N50KA - Jun 26, 19:55 UTCJun 26, 20:00 UTC5m
2026-06-26 N50KA - Jun 26, 18:20 UTCJun 26, 19:30 UTC1h 10m
2026-06-26 N50KA - Jun 26, 17:00 UTCJun 26, 17:54 UTC55m
2026-06-26 N50KA - Jun 26, 14:39 UTCJun 26, 16:14 UTC1h 35m
2026-06-25 N50KA - Jun 25, 23:05 UTCJun 26, 00:45 UTC1h 40m
2026-06-25 N50KA - Jun 25, 21:44 UTCJun 25, 22:20 UTC35m
2026-06-25 N50KA - Jun 25, 20:14 UTCJun 25, 20:49 UTC35m
2026-06-25 N50KA LPS → YWH Jun 25, 18:29 UTCJun 25, 18:50 UTC20m
2026-06-25 N50KA - Jun 25, 16:55 UTCJun 25, 17:09 UTC15m
2026-06-25 N50KA KEH → YWH Jun 25, 15:40 UTCJun 25, 16:24 UTC45m
2026-06-24 N50KA - Jun 24, 23:59 UTCJun 25, 01:30 UTC1h 30m
2026-06-24 N50KA - Jun 24, 23:00 UTCJun 24, 23:24 UTC25m
2026-06-24 N50KA - Jun 24, 21:00 UTCJun 24, 21:24 UTC25m
2026-06-24 N50KA - Jun 24, 19:00 UTCJun 24, 19:20 UTC20m
2026-06-24 N50KA - Jun 24, 18:15 UTCJun 24, 18:44 UTC30m
2026-06-24 N50KA LKE → LKE Jun 24, 17:40 UTCJun 24, 17:59 UTC20m
2026-06-24 N50KA - Jun 24, 16:34 UTCJun 24, 16:54 UTC20m
2026-06-24 N50KA - Jun 24, 15:14 UTCJun 24, 15:35 UTC20m
2026-06-23 N50KA - Jun 23, 23:19 UTCJun 24, 00:34 UTC1h 15m
2026-06-23 N50KA - Jun 23, 22:15 UTCJun 23, 22:55 UTC40m
2026-06-23 N50KA - Jun 23, 17:04 UTCJun 23, 18:45 UTC1h 40m
2026-06-23 N50KA - Jun 23, 00:54 UTCJun 23, 01:30 UTC35m
2026-06-22 N50KA - Jun 22, 21:10 UTCJun 22, 22:24 UTC1h 15m
2026-06-22 N50KA - Jun 22, 17:44 UTCJun 22, 19:44 UTC2h 0m
2026-06-22 N50KA - Jun 22, 01:00 UTCJun 22, 01:35 UTC35m
2026-06-21 N50KA KEH → YWH Jun 21, 23:55 UTCJun 22, 00:34 UTC40m
2026-06-21 N50KA - Jun 21, 22:29 UTCJun 21, 23:05 UTC35m
2026-06-21 N50KA - Jun 21, 21:05 UTCJun 21, 21:44 UTC40m
2026-06-21 N50KA - Jun 21, 20:00 UTCJun 21, 20:34 UTC35m
2026-06-21 N50KA - Jun 21, 18:54 UTCJun 21, 19:09 UTC15m
2026-06-21 N50KA - Jun 21, 17:10 UTCJun 21, 17:29 UTC20m
2026-06-21 N50KA KEH → YWH Jun 21, 15:59 UTCJun 21, 16:39 UTC40m
2026-06-20 N50KA - Jun 20, 22:14 UTCJun 20, 22:50 UTC35m
2026-06-20 N50KA - Jun 20, 21:10 UTCJun 20, 21:44 UTC35m
2026-06-20 N50KA LKE → LKE Jun 20, 19:44 UTCJun 20, 20:09 UTC25m
2026-06-20 N50KA - Jun 20, 18:59 UTCJun 20, 19:24 UTC25m
2026-06-20 N50KA - Jun 20, 17:39 UTCJun 20, 18:19 UTC40m
2026-06-20 N50KA - Jun 20, 16:09 UTCJun 20, 16:39 UTC30m
2026-06-20 N50KA KEH → LKE Jun 20, 15:34 UTCJun 20, 15:39 UTC5m
2026-06-20 N50KA - Jun 20, 01:14 UTCJun 20, 01:50 UTC35m
2026-06-19 N50KA - Jun 19, 23:59 UTCJun 20, 00:39 UTC40m
2026-06-19 N50KA - Jun 19, 22:39 UTCJun 19, 23:14 UTC35m
2026-06-19 N50KA - Jun 19, 21:34 UTCJun 19, 22:14 UTC40m
2026-06-19 N50KA - Jun 19, 21:09 UTCJun 19, 21:14 UTC5m
2026-06-19 N50KA - Jun 19, 17:55 UTCJun 19, 18:05 UTC10m
2026-06-19 N50KA - Jun 19, 17:09 UTCJun 19, 17:39 UTC30m
2026-06-19 N50KA - Jun 19, 15:29 UTCJun 19, 16:09 UTC40m

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 N50KA page for operator, model, and routing details .

Mode-S A63879 frequently asked

What is Mode-S code A63879?
A63879 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N50KA.
Where is Mode-S A63879 registered?
Mode-S code A63879 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 A63879 broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A63879, octal 51434171, decimal 10,893,433.
What flights does A63879 operate?
Mode-S A63879 has broadcast 1 distinct callsign, including N50KA.