Apparatus

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sensors Mode-S transponder

A12D65

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N175SW · SWEARINGEN Metro · operated by DENAINA AIR TAXI LLC

Hex
A12D65
Octal
50226545
Decimal
10,562,917
Country
US
Tail
N175SW
Type
SW4
No current signal · last broadcast 17d ago
Flights observed
182
Distinct callsigns
13
Country
US
Last broadcast
17d ago

Last known position

Most recent position reported by Mode-S A12D65.

Country allocation

The ICAO 24-bit address A12D65 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 13 distinct

Callsign Airline Flights Last seen
TNV75 - 108 2026-07-21
TNV152 - 39 2026-07-21
TNV124 - 8 2026-07-21
TNV175 - 7 2026-07-17
TNV154 - 5 2026-06-10
TNV122 - 5 2026-07-02
TNV142 - 4 2026-05-20
TNV45 - 1 2026-07-03
TNV172 - 1 2026-07-12
TNV135 - 1 2026-05-15
TNV134 - 1 2026-06-25
TNV132 - 1 2026-06-25
N175SW - 1 2026-05-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-21 TNV75 - Jul 21, 21:30 UTCJul 21, 22:35 UTC1h 5m
2026-07-21 TNV124 - Jul 21, 19:45 UTCJul 21, 20:55 UTC1h 10m
2026-07-21 TNV152 - Jul 21, 18:30 UTCJul 21, 18:55 UTC25m
2026-07-21 TNV152 - Jul 21, 17:30 UTCJul 21, 17:45 UTC15m
2026-07-20 TNV75 - Jul 20, 18:45 UTCJul 20, 19:55 UTC1h 10m
2026-07-20 TNV75 - Jul 20, 17:05 UTCJul 20, 18:20 UTC1h 15m
2026-07-19 TNV75 - Jul 19, 23:10 UTCJul 20, 00:25 UTC1h 15m
2026-07-19 TNV75 ANC → AKN Jul 19, 20:40 UTCJul 19, 21:50 UTC1h 10m
2026-07-19 TNV75 - Jul 19, 17:10 UTCJul 19, 20:05 UTC2h 55m
2026-07-18 TNV75 AKN → ANC Jul 18, 18:45 UTCJul 18, 19:55 UTC1h 10m
2026-07-18 TNV75 - Jul 18, 16:50 UTCJul 18, 18:05 UTC1h 15m
2026-07-17 TNV175 - Jul 17, 20:00 UTCJul 17, 21:15 UTC1h 15m
2026-07-17 TNV175 ANC → AKN Jul 17, 18:15 UTCJul 17, 19:55 UTC1h 40m
2026-07-16 TNV152 - Jul 16, 18:05 UTCJul 16, 18:25 UTC20m
2026-07-16 TNV152 ANC → ENA Jul 16, 17:14 UTCJul 16, 17:30 UTC15m
2026-07-16 TNV75 - Jul 16, 00:30 UTCJul 16, 02:00 UTC1h 30m
2026-07-15 TNV75 - Jul 15, 21:45 UTCJul 15, 23:15 UTC1h 30m
2026-07-14 TNV152 - Jul 14, 18:20 UTCJul 14, 18:45 UTC25m
2026-07-14 TNV152 ANC → ENA Jul 14, 17:35 UTCJul 14, 17:50 UTC15m
2026-07-13 TNV175 - Jul 13, 03:25 UTCJul 13, 04:55 UTC1h 30m
2026-07-12 TNV172 - Jul 12, 22:30 UTCJul 13, 00:15 UTC1h 45m
2026-07-11 TNV75 AKN → ANC Jul 11, 22:01 UTCJul 11, 23:15 UTC1h 15m
2026-07-11 TNV75 - Jul 11, 19:10 UTCJul 11, 20:40 UTC1h 30m
2026-07-10 TNV175 - Jul 10, 19:55 UTCJul 10, 21:25 UTC1h 30m
2026-07-10 TNV175 ANC → AKN Jul 10, 18:10 UTCJul 10, 19:20 UTC1h 10m
2026-07-09 TNV152 - Jul 9, 18:15 UTCJul 9, 18:30 UTC15m
2026-07-09 TNV152 ANC → ENA Jul 9, 17:10 UTCJul 9, 17:25 UTC15m
2026-07-08 TNV152 - Jul 8, 18:10 UTCJul 8, 19:25 UTC1h 15m
2026-07-08 TNV152 - Jul 8, 17:25 UTCJul 8, 17:35 UTC10m
2026-07-07 TNV75 - Jul 7, 18:00 UTCJul 7, 18:35 UTC35m
2026-07-07 TNV75 ANC → HOM Jul 7, 17:05 UTCJul 7, 17:30 UTC25m
2026-07-07 TNV75 - Jul 7, 02:10 UTCJul 7, 04:10 UTC2h 0m
2026-07-06 TNV75 - Jul 6, 21:20 UTCJul 6, 22:55 UTC1h 35m
2026-07-03 TNV75 - Jul 3, 19:50 UTCJul 3, 20:50 UTC1h 0m
2026-07-03 TNV45 - Jul 3, 18:10 UTCJul 3, 19:25 UTC1h 15m
2026-07-02 TNV122 - Jul 2, 19:00 UTCJul 2, 19:55 UTC55m
2026-07-02 TNV122 ANC → ADQ Jul 2, 17:10 UTCJul 2, 18:15 UTC1h 5m
2026-07-01 TNV75 - Jul 1, 21:10 UTCJul 1, 22:15 UTC1h 5m
2026-07-01 TNV75 ANC → AKN Jul 1, 19:20 UTCJul 1, 20:30 UTC1h 10m
2026-06-30 TNV75 - Jun 30, 22:55 UTCJul 1, 00:05 UTC1h 10m
2026-06-30 TNV75 - Jun 30, 20:25 UTCJun 30, 21:55 UTC1h 30m
2026-06-30 TNV152 - Jun 30, 19:05 UTCJun 30, 19:35 UTC30m
2026-06-30 TNV152 ANC → ENA Jun 30, 18:10 UTCJun 30, 18:30 UTC20m
2026-06-29 TNV75 - Jun 29, 03:34 UTCJun 29, 05:04 UTC1h 30m
2026-06-28 TNV75 - Jun 28, 21:59 UTCJun 28, 23:50 UTC1h 50m
2026-06-27 TNV75 - Jun 27, 02:50 UTCJun 27, 04:29 UTC1h 40m
2026-06-26 TNV75 - Jun 26, 22:25 UTCJun 27, 00:05 UTC1h 40m
2026-06-26 TNV75 - Jun 26, 03:34 UTCJun 26, 05:35 UTC2h 0m
2026-06-25 TNV75 - Jun 25, 22:20 UTCJun 26, 00:05 UTC1h 45m
2026-06-25 TNV134 - Jun 25, 19:29 UTCJun 25, 20:30 UTC1h 0m

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 N175SW page for operator, model, and routing details .

Mode-S A12D65 frequently asked

What is Mode-S code A12D65?
A12D65 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N175SW.
Where is Mode-S A12D65 registered?
Mode-S code A12D65 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 A12D65 broadcasting right now?
No active broadcast right now. Last signal was 17d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A12D65, octal 50226545, decimal 10,562,917.
What flights does A12D65 operate?
Mode-S A12D65 has broadcast 13 distinct callsigns, including TNV75, TNV152, TNV124, TNV175, TNV154.