Apparatus

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sensors Mode-S transponder

A16DD7

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N191WA · BEECH 99 Airliner · operated by AMERIFLIGHT LLC

Hex
A16DD7
Octal
50266727
Decimal
10,579,415
Country
US
Tail
N191WA
Type
BE99
No current signal · last broadcast 1d ago
Flights observed
96
Distinct callsigns
11
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A16DD7.

Country allocation

The ICAO 24-bit address A16DD7 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 11 distinct

Callsign Airline Flights Last seen
AMF1544 - 41 2026-07-14
AMF1543 - 37 2026-07-14
AMF1531 - 5 2026-04-21
AMF1532 - 4 2026-04-21
AMF8008 - 2 2026-06-10
AMF1558 - 2 2026-04-24
AMF6602 - 1 2026-07-16
AMF6601 - 1 2026-07-16
AMF2218 - 1 2026-06-10
AMF1557 - 1 2026-04-27
AMF1057 - 1 2026-04-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 AMF6602 - Jul 16, 21:35 UTCJul 16, 22:49 UTC1h 15m
2026-07-16 AMF6601 - Jul 16, 19:25 UTCJul 16, 20:00 UTC35m
2026-07-14 AMF1543 - Jul 14, 23:05 UTCJul 14, 23:55 UTC50m
2026-07-14 AMF1544 - Jul 14, 11:55 UTCJul 14, 12:20 UTC25m
2026-07-13 AMF1543 - Jul 13, 23:05 UTCJul 13, 23:50 UTC45m
2026-07-10 AMF1544 - Jul 10, 14:05 UTCJul 10, 14:15 UTC10m
2026-07-10 AMF1544 - Jul 10, 12:40 UTCJul 10, 13:00 UTC20m
2026-07-09 AMF1543 - Jul 9, 22:55 UTCJul 9, 23:45 UTC50m
2026-07-09 AMF1544 - Jul 9, 11:50 UTCJul 9, 12:15 UTC25m
2026-07-08 AMF1543 BGR → MHT Jul 8, 23:10 UTCJul 9, 00:00 UTC50m
2026-07-08 AMF1544 - Jul 8, 11:55 UTCJul 8, 12:20 UTC25m
2026-07-07 AMF1543 - Jul 7, 23:00 UTCJul 7, 23:50 UTC50m
2026-07-07 AMF1544 - Jul 7, 12:10 UTCJul 7, 12:30 UTC20m
2026-07-06 AMF1543 BGR → MHT Jul 6, 23:05 UTCJul 6, 23:55 UTC50m
2026-07-03 AMF1544 - Jul 3, 11:30 UTCJul 3, 11:50 UTC20m
2026-07-02 AMF1543 - Jul 2, 23:00 UTCJul 2, 23:45 UTC45m
2026-07-02 AMF1544 - Jul 2, 11:50 UTCJul 2, 12:15 UTC25m
2026-07-01 AMF1543 - Jul 1, 23:10 UTCJul 2, 00:00 UTC50m
2026-07-01 AMF1544 - Jul 1, 12:00 UTCJul 1, 12:25 UTC25m
2026-06-30 AMF1543 - Jun 30, 23:15 UTCJul 1, 00:00 UTC45m
2026-06-30 AMF1544 - Jun 30, 12:25 UTCJun 30, 12:50 UTC25m
2026-06-29 AMF1543 BGR → MHT Jun 29, 23:14 UTCJun 30, 00:00 UTC45m
2026-06-26 AMF1544 - Jun 26, 13:24 UTCJun 26, 13:45 UTC20m
2026-06-25 AMF1543 - Jun 25, 22:59 UTCJun 25, 23:49 UTC50m
2026-06-25 AMF1544 - Jun 25, 13:45 UTCJun 25, 13:55 UTC10m
2026-06-25 AMF1544 - Jun 25, 12:10 UTCJun 25, 12:30 UTC20m
2026-06-24 AMF1543 - Jun 24, 23:10 UTCJun 24, 23:54 UTC45m
2026-06-24 AMF1544 - Jun 24, 12:25 UTCJun 24, 12:50 UTC25m
2026-06-23 AMF1543 - Jun 23, 22:49 UTCJun 23, 23:39 UTC50m
2026-06-23 AMF1544 - Jun 23, 11:54 UTCJun 23, 12:15 UTC20m
2026-06-22 AMF1543 - Jun 22, 22:59 UTCJun 22, 23:55 UTC55m
2026-06-19 AMF1544 - Jun 19, 11:39 UTCJun 19, 11:59 UTC20m
2026-06-18 AMF1543 BGR → MHT Jun 18, 23:20 UTCJun 19, 00:14 UTC54m
2026-06-18 AMF1544 - Jun 18, 14:15 UTCJun 18, 14:55 UTC40m
2026-06-17 AMF1543 - Jun 17, 23:35 UTCJun 18, 00:20 UTC45m
2026-06-17 AMF1544 - Jun 17, 11:55 UTCJun 17, 12:15 UTC20m
2026-06-16 AMF1543 - Jun 16, 23:15 UTCJun 17, 00:00 UTC45m
2026-06-16 AMF1544 - Jun 16, 12:00 UTCJun 16, 12:20 UTC20m
2026-06-15 AMF1543 - Jun 15, 22:54 UTCJun 15, 23:45 UTC50m
2026-06-12 AMF1544 - Jun 12, 13:35 UTCJun 12, 13:45 UTC10m
2026-06-12 AMF1544 - Jun 12, 12:15 UTCJun 12, 12:35 UTC20m
2026-06-11 AMF1543 - Jun 11, 23:00 UTCJun 11, 23:50 UTC50m
2026-06-11 AMF1544 - Jun 11, 12:10 UTCJun 11, 12:55 UTC45m
2026-06-10 AMF1543 - Jun 10, 23:15 UTCJun 11, 00:05 UTC50m
2026-06-10 AMF2218 - Jun 10, 21:30 UTCJun 10, 22:15 UTC45m
2026-06-10 AMF8008 - Jun 10, 16:25 UTCJun 10, 17:00 UTC35m
2026-06-10 AMF8008 - Jun 10, 15:05 UTCJun 10, 15:10 UTC5m
2026-06-10 AMF1544 - Jun 10, 11:55 UTCJun 10, 12:20 UTC25m
2026-06-09 AMF1543 - Jun 9, 23:15 UTCJun 10, 00:00 UTC45m
2026-06-09 AMF1544 - Jun 9, 11:35 UTCJun 9, 11:55 UTC20m

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 N191WA page for operator, model, and routing details .

Mode-S A16DD7 frequently asked

What is Mode-S code A16DD7?
A16DD7 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N191WA.
Where is Mode-S A16DD7 registered?
Mode-S code A16DD7 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 A16DD7 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 A16DD7, octal 50266727, decimal 10,579,415.
What flights does A16DD7 operate?
Mode-S A16DD7 has broadcast 11 distinct callsigns, including AMF1544, AMF1543, AMF1531, AMF1532, AMF8008.