Apparatus

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sensors Mode-S transponder

A5006A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N421MA · SWEARINGEN Metro · operated by UAS TRANSERVICES INC

Hex
A5006A
Octal
51200152
Decimal
10,813,546
Country
US
Tail
N421MA
Type
SW4
No current signal · last broadcast 1d ago
Flights observed
89
Distinct callsigns
5
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A5006A.

Country allocation

The ICAO 24-bit address A5006A 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 5 distinct

Callsign Airline Flights Last seen
AMF1944 - 43 2026-07-11
AMF1943 - 42 2026-07-14
AMF2226 - 2 2026-06-11
AMF8055 - 1 2026-07-03
AMF2177 - 1 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 AMF2177 BUR → PHX Jul 16, 15:05 UTCJul 16, 16:40 UTC1h 35m
2026-07-14 AMF1943 - Jul 14, 00:50 UTCJul 14, 01:25 UTC35m
2026-07-11 AMF1944 - Jul 11, 15:45 UTCJul 11, 16:25 UTC40m
2026-07-11 AMF1943 SMX → ONT Jul 11, 00:55 UTCJul 11, 01:40 UTC45m
2026-07-10 AMF1944 BUR → SMX Jul 10, 13:30 UTCJul 10, 14:10 UTC40m
2026-07-10 AMF1943 - Jul 10, 00:55 UTCJul 10, 01:25 UTC30m
2026-07-09 AMF1944 BUR → SMX Jul 9, 13:25 UTCJul 9, 14:05 UTC40m
2026-07-09 AMF1943 SMX → BUR Jul 9, 00:50 UTCJul 9, 01:20 UTC30m
2026-07-08 AMF1944 - Jul 8, 13:10 UTCJul 8, 13:50 UTC40m
2026-07-08 AMF1943 SMX → BUR Jul 8, 00:55 UTCJul 8, 01:30 UTC35m
2026-07-07 AMF1944 BUR → SMX Jul 7, 13:35 UTCJul 7, 14:15 UTC40m
2026-07-03 AMF8055 SMX → BUR Jul 3, 20:05 UTCJul 3, 21:15 UTC1h 10m
2026-07-03 AMF1944 - Jul 3, 13:15 UTCJul 3, 13:50 UTC35m
2026-07-03 AMF1943 SMX → BUR Jul 3, 00:45 UTCJul 3, 01:20 UTC35m
2026-07-02 AMF1944 BUR → SMX Jul 2, 13:40 UTCJul 2, 14:10 UTC30m
2026-06-30 AMF1943 SMX → BUR Jun 30, 00:55 UTCJun 30, 01:30 UTC36m
2026-06-27 AMF1944 - Jun 27, 14:09 UTCJun 27, 15:00 UTC50m
2026-06-27 AMF1943 - Jun 27, 00:50 UTCJun 27, 01:24 UTC35m
2026-06-26 AMF1944 - Jun 26, 21:35 UTCJun 26, 21:59 UTC25m
2026-06-26 AMF1943 SMX → BUR Jun 26, 00:55 UTCJun 26, 01:24 UTC30m
2026-06-25 AMF1944 - Jun 25, 14:59 UTCJun 25, 15:34 UTC35m
2026-06-25 AMF1943 - Jun 25, 00:55 UTCJun 25, 01:30 UTC35m
2026-06-24 AMF1944 BUR → SMX Jun 24, 14:04 UTCJun 24, 14:39 UTC35m
2026-06-24 AMF1943 SMX → BUR Jun 24, 00:59 UTCJun 24, 01:34 UTC35m
2026-06-23 AMF1944 - Jun 23, 13:45 UTCJun 23, 14:15 UTC30m
2026-06-23 AMF1943 SMX → BUR Jun 23, 00:50 UTCJun 23, 01:30 UTC40m
2026-06-20 AMF1944 - Jun 20, 14:50 UTCJun 20, 15:29 UTC40m
2026-06-20 AMF1943 - Jun 20, 01:05 UTCJun 20, 01:44 UTC40m
2026-06-19 AMF1944 BUR → SMX Jun 19, 13:44 UTCJun 19, 14:15 UTC30m
2026-06-19 AMF1943 - Jun 19, 00:55 UTCJun 19, 01:29 UTC35m
2026-06-18 AMF1944 BUR → SMX Jun 18, 21:40 UTCJun 18, 22:10 UTC30m
2026-06-16 AMF1943 - Jun 16, 00:50 UTCJun 16, 01:25 UTC35m
2026-06-13 AMF1944 ONT → SMX Jun 13, 15:20 UTCJun 13, 16:05 UTC45m
2026-06-13 AMF1943 SMX → ONT Jun 13, 00:50 UTCJun 13, 01:40 UTC50m
2026-06-12 AMF1944 - Jun 12, 15:40 UTCJun 12, 16:15 UTC35m
2026-06-12 AMF1943 SMX → BUR Jun 12, 00:55 UTCJun 12, 01:35 UTC40m
2026-06-11 AMF2226 BUR → SMX Jun 11, 19:55 UTCJun 11, 20:25 UTC30m
2026-06-11 AMF2226 - Jun 11, 18:15 UTCJun 11, 18:55 UTC40m
2026-06-11 AMF1944 - Jun 11, 15:45 UTCJun 11, 16:25 UTC40m
2026-06-11 AMF1944 BUR → ONT Jun 11, 13:15 UTCJun 11, 13:30 UTC15m
2026-06-11 AMF1943 - Jun 11, 00:50 UTCJun 11, 01:25 UTC35m
2026-06-10 AMF1944 BUR → SMX Jun 10, 13:45 UTCJun 10, 14:15 UTC30m
2026-06-10 AMF1943 SMX → BUR Jun 10, 00:55 UTCJun 10, 01:30 UTC35m
2026-06-09 AMF1944 BUR → SMX Jun 9, 14:40 UTCJun 9, 15:20 UTC40m
2026-06-09 AMF1943 - Jun 9, 00:50 UTCJun 9, 01:25 UTC35m
2026-06-06 AMF1944 - Jun 6, 14:50 UTCJun 6, 15:34 UTC45m
2026-06-06 AMF1943 SMX → ONT Jun 6, 00:50 UTCJun 6, 01:35 UTC45m
2026-06-05 AMF1944 - Jun 5, 13:30 UTCJun 5, 14:15 UTC45m
2026-06-05 AMF1943 - Jun 5, 00:55 UTCJun 5, 01:25 UTC30m
2026-06-04 AMF1944 BUR → SMX Jun 4, 13:40 UTCJun 4, 14:15 UTC35m

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 N421MA page for operator, model, and routing details .

Mode-S A5006A frequently asked

What is Mode-S code A5006A?
A5006A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N421MA.
Where is Mode-S A5006A registered?
Mode-S code A5006A 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 A5006A broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A5006A, octal 51200152, decimal 10,813,546.
What flights does A5006A operate?
Mode-S A5006A has broadcast 5 distinct callsigns, including AMF1944, AMF1943, AMF2226, AMF8055, AMF2177.