Apparatus

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sensors Mode-S transponder

A7C8EF

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N600TG · CESSNA 208 Caravan · operated by T & T CAPITAL INC

Hex
A7C8EF
Octal
51744357
Decimal
10,995,951
Country
US
Tail
N600TG
Type
C208
No current signal · last broadcast 16h ago
Flights observed
41
Distinct callsigns
8
Country
US
Last broadcast
16h ago

Last known position

Most recent position reported by Mode-S A7C8EF.

Country allocation

The ICAO 24-bit address A7C8EF 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 8 distinct

Callsign Airline Flights Last seen
SNC408 - 13 2026-07-17
SNC962 - 12 2026-07-15
SNC407 - 7 2026-07-17
SNC961 - 3 2026-06-25
SNC939 Air Cargo Carriers 3 2026-06-25
SNC611 Air Cargo Carriers 1 2026-05-30
SNC601 Air Cargo Carriers 1 2026-06-04
SNC100 Air Cargo Carriers 1 2026-05-25

Recent flights last 41

DateFlightRouteTakeoffLandingDuration
2026-07-17 SNC408 - Jul 17, 22:49 UTCJul 17, 23:10 UTC20m
2026-07-17 SNC407 - Jul 17, 17:40 UTCJul 17, 18:00 UTC20m
2026-07-16 SNC408 - Jul 16, 22:59 UTCJul 16, 23:15 UTC15m
2026-07-15 SNC962 - Jul 15, 22:55 UTCJul 15, 23:15 UTC20m
2026-07-10 SNC408 - Jul 10, 23:30 UTCJul 10, 23:45 UTC15m
2026-07-09 SNC962 - Jul 9, 23:15 UTCJul 9, 23:30 UTC15m
2026-07-07 SNC962 - Jul 7, 23:10 UTCJul 7, 23:20 UTC10m
2026-07-03 SNC408 SXM → SJU Jul 3, 23:10 UTCJul 3, 23:30 UTC20m
2026-07-03 SNC407 SJU → SXM Jul 3, 17:45 UTCJul 3, 17:55 UTC10m
2026-07-03 SNC408 SXM → SJU Jul 3, 00:40 UTCJul 3, 00:55 UTC15m
2026-06-30 SNC962 - Jun 30, 23:05 UTCJun 30, 23:15 UTC10m
2026-06-26 SNC408 SXM → SJU Jun 26, 22:40 UTCJun 26, 22:55 UTC15m
2026-06-26 SNC407 SJU → SXM Jun 26, 17:25 UTCJun 26, 17:40 UTC15m
2026-06-25 SNC962 - Jun 25, 22:49 UTCJun 25, 23:05 UTC15m
2026-06-25 SNC961 - Jun 25, 17:39 UTCJun 25, 17:49 UTC10m
2026-06-25 SNC939 SIG → SJU Jun 25, 13:35 UTCJun 25, 15:15 UTC1h 40m
2026-06-23 SNC962 - Jun 23, 23:10 UTCJun 23, 23:19 UTC10m
2026-06-18 SNC962 - Jun 18, 22:35 UTCJun 18, 22:45 UTC10m
2026-06-17 SNC962 - Jun 17, 22:45 UTCJun 17, 22:55 UTC10m
2026-06-12 SNC408 SXM → SJU Jun 12, 23:30 UTCJun 12, 23:40 UTC10m
2026-06-12 SNC407 SJU → SXM Jun 12, 19:20 UTCJun 12, 19:40 UTC20m
2026-06-11 SNC408 SXM → SJU Jun 11, 23:00 UTCJun 11, 23:15 UTC15m
2026-06-11 SNC407 SJU → SXM Jun 11, 17:50 UTCJun 11, 18:10 UTC20m
2026-06-10 SNC408 SXM → SJU Jun 10, 23:20 UTCJun 10, 23:35 UTC15m
2026-06-10 SNC407 SJU → SXM Jun 10, 18:10 UTCJun 10, 18:20 UTC10m
2026-06-09 SNC408 SXM → SJU Jun 9, 22:10 UTCJun 9, 22:30 UTC20m
2026-06-09 SNC407 SJU → SXM Jun 9, 17:15 UTCJun 9, 17:25 UTC10m
2026-06-05 SNC961 SJU → STT Jun 5, 17:10 UTCJun 5, 17:20 UTC10m
2026-06-04 SNC601 EIS → SJU Jun 4, 15:10 UTCJun 4, 15:20 UTC10m
2026-06-02 SNC962 STT → SJU Jun 2, 23:00 UTCJun 2, 23:10 UTC10m
2026-05-30 SNC611 EIS → SJU May 30, 14:40 UTCMay 30, 14:50 UTC10m
2026-05-29 SNC962 STT → SJU May 29, 23:00 UTCMay 29, 23:10 UTC10m
2026-05-28 SNC939 SIG → SJU May 28, 14:35 UTCMay 28, 15:25 UTC50m
2026-05-28 SNC939 SIG → SJU May 28, 12:35 UTCMay 28, 13:35 UTC1h 0m
2026-05-26 SNC961 SJU → STT May 26, 16:30 UTCMay 26, 16:40 UTC10m
2026-05-25 SNC100 BKW → MKE May 25, 19:54 UTCMay 25, 20:24 UTC30m
2026-04-24 SNC408 SXM → SJU Apr 24, 22:45 UTCApr 24, 23:05 UTC20m
2026-04-23 SNC962 STT → SJU Apr 23, 22:55 UTCApr 23, 23:05 UTC10m
2026-04-17 SNC962 STT → SJU Apr 17, 22:55 UTCApr 17, 23:10 UTC15m
2026-04-14 SNC408 - Apr 14, 23:10 UTCApr 14, 23:20 UTC10m
2026-04-13 SNC408 - Apr 13, 22:20 UTCApr 13, 22:30 UTC10m

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 N600TG page for operator, model, and routing details .

Mode-S A7C8EF frequently asked

What is Mode-S code A7C8EF?
A7C8EF is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N600TG.
Where is Mode-S A7C8EF registered?
Mode-S code A7C8EF 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 A7C8EF broadcasting right now?
No active broadcast right now. Last signal was 16h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A7C8EF, octal 51744357, decimal 10,995,951.
What flights does A7C8EF operate?
Mode-S A7C8EF has broadcast 8 distinct callsigns, including SNC408, SNC962, SNC407, SNC961, SNC939.