sensors Mode-S transponder

A3C94C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N343JS · operated by AMERICAN AIRLINES INC

Hex
A3C94C
Octal
50744514
Decimal
10,733,900
Country
US
Tail
N343JS
No current signal · last broadcast 3h ago
Flights observed
675
Distinct callsigns
20
Country
US
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S A3C94C.

Country allocation

The ICAO 24-bit address A3C94C 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 20 distinct

Callsign Airline Flights Last seen
ENY3609 Envoy Air 8 2026-06-09
ENY4046 - 7 2026-06-20
ENY3542 - 7 2026-06-30
ENY4171 - 6 2026-06-16
ENY3803 - 6 2026-07-13
ENY3526 - 6 2026-06-22
ENY3516 - 6 2026-07-06
ENY4173 Envoy Air 5 2026-05-30
ENY4074 Envoy Air 5 2026-06-12
ENY4004 Envoy Air 5 2026-06-11
ENY3994 - 5 2026-07-15
ENY3976 - 5 2026-06-18
ENY3969 - 5 2026-07-15
ENY3874 Envoy Air 5 2026-05-15
ENY3810 - 5 2026-07-04
ENY3809 Envoy Air 5 2026-05-14
ENY3768 - 5 2026-07-09
ENY3762 - 5 2026-07-16
ENY3651 - 5 2026-07-13
ENY3539 - 5 2026-07-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 ENY4254 DFW → BMI Jul 18, 02:14 UTCJul 18, 03:55 UTC1h 41m
2026-07-18 ENY3729 OKC → DFW Jul 18, 00:45 UTCJul 18, 01:20 UTC35m
2026-07-17 ENY3729 - Jul 17, 22:49 UTCJul 17, 23:30 UTC40m
2026-07-17 ENY3482 - Jul 17, 20:44 UTCJul 17, 21:50 UTC1h 5m
2026-07-17 ENY3482 - Jul 17, 19:05 UTCJul 17, 20:00 UTC55m
2026-07-17 ENY4142 ORD → GRR Jul 17, 16:29 UTCJul 17, 17:25 UTC55m
2026-07-17 ENY4142 ORD → GRR Jul 17, 14:44 UTCJul 17, 15:35 UTC50m
2026-07-17 ENY3737 SBP → PHX Jul 17, 13:00 UTCJul 17, 13:29 UTC30m
2026-07-17 ENY3611 - Jul 17, 02:45 UTCJul 17, 02:59 UTC15m
2026-07-17 ENY3611 DFW → ABI Jul 17, 02:44 UTCJul 17, 03:16 UTC32m
2026-07-16 ENY3762 - Jul 16, 20:15 UTCJul 17, 01:09 UTC4h 55m
2026-07-16 ENY3478 - Jul 16, 17:30 UTCJul 16, 18:29 UTC1h 0m
2026-07-16 ENY3478 - Jul 16, 14:45 UTCJul 16, 15:40 UTC55m
2026-07-16 ENY3392 - Jul 16, 11:10 UTCJul 16, 13:00 UTC1h 50m
2026-07-16 ENY3392 LEX → DFW Jul 16, 11:07 UTCJul 16, 12:55 UTC1h 48m
2026-07-16 ENY3385 DFW → LEX Jul 16, 01:30 UTCJul 16, 03:20 UTC1h 50m
2026-07-15 ENY3969 - Jul 15, 23:35 UTCJul 16, 00:30 UTC55m
2026-07-15 ENY3969 AEX → DFW Jul 15, 23:29 UTCJul 16, 00:26 UTC57m
2026-07-15 ENY3969 - Jul 15, 22:00 UTCJul 15, 22:45 UTC45m
2026-07-15 ENY3994 - Jul 15, 17:55 UTCJul 15, 20:20 UTC2h 25m
2026-07-15 ENY3994 LEX → DFW Jul 15, 17:54 UTCJul 15, 20:18 UTC2h 24m
2026-07-15 ENY3994 - Jul 15, 14:55 UTCJul 15, 17:00 UTC2h 5m
2026-07-15 ENY3370 - Jul 15, 11:50 UTCJul 15, 13:30 UTC1h 40m
2026-07-15 ENY4254 DFW → BMI Jul 15, 02:20 UTCJul 15, 03:55 UTC1h 35m
2026-07-14 ENY4113 - Jul 14, 23:55 UTCJul 15, 00:55 UTC1h 0m
2026-07-14 ENY4113 - Jul 14, 21:55 UTCJul 14, 22:55 UTC59m
2026-07-14 ENY4130 - Jul 14, 20:00 UTCJul 14, 20:40 UTC40m
2026-07-14 ENY4130 DFW → SHV Jul 14, 18:25 UTCJul 14, 18:55 UTC30m
2026-07-14 ENY3805 - Jul 14, 16:20 UTCJul 14, 16:55 UTC35m
2026-07-14 ENY3805 DFW → OKC Jul 14, 14:50 UTCJul 14, 15:30 UTC40m
2026-07-14 ENY3780 - Jul 14, 12:15 UTCJul 14, 12:55 UTC40m
2026-07-14 ENY3510 - Jul 14, 02:50 UTCJul 14, 03:35 UTC45m
2026-07-13 ENY3485 - Jul 13, 23:50 UTCJul 14, 00:55 UTC1h 5m
2026-07-13 ENY3485 - Jul 13, 22:05 UTCJul 13, 22:55 UTC50m
2026-07-13 ENY3651 - Jul 13, 19:10 UTCJul 13, 20:25 UTC1h 15m
2026-07-13 ENY3651 - Jul 13, 16:50 UTCJul 13, 18:05 UTC1h 15m
2026-07-13 ENY3401 AUS → DFW Jul 13, 14:30 UTCJul 13, 16:00 UTC1h 30m
2026-07-13 ENY3401 AUS → DFW Jul 13, 14:30 UTCJul 13, 16:02 UTC1h 32m
2026-07-13 ENY3401 DFW → AUS Jul 13, 13:00 UTCJul 13, 13:40 UTC40m
2026-07-13 ENY4075 - Jul 13, 10:20 UTCJul 13, 11:20 UTC1h 0m
2026-07-13 ENY4116 - Jul 13, 04:05 UTCJul 13, 04:50 UTC45m
2026-07-13 ENY3803 - Jul 13, 01:45 UTCJul 13, 03:01 UTC1h 15m
2026-07-12 ENY3803 - Jul 12, 22:30 UTCJul 12, 23:30 UTC1h 0m
2026-07-12 ENY3652 - Jul 12, 19:35 UTCJul 12, 20:25 UTC50m
2026-07-12 ENY3652 - Jul 12, 17:40 UTCJul 12, 18:30 UTC50m
2026-07-12 ENY3700 - Jul 12, 14:30 UTCJul 12, 15:45 UTC1h 15m
2026-07-12 ENY3700 MFE → DFW Jul 12, 14:26 UTCJul 12, 15:44 UTC1h 18m
2026-07-12 ENY3700 - Jul 12, 12:35 UTCJul 12, 13:35 UTC1h 0m
2026-07-12 ENY3579 - Jul 12, 01:10 UTCJul 12, 02:50 UTC1h 40m
2026-07-11 ENY3579 DFW → HSV Jul 11, 22:45 UTCJul 12, 00:05 UTC1h 20m

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 N343JS page for operator, model, and routing details .

Mode-S A3C94C frequently asked

What is Mode-S code A3C94C?
A3C94C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N343JS.
Where is Mode-S A3C94C registered?
Mode-S code A3C94C 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 A3C94C 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 A3C94C, octal 50744514, decimal 10,733,900.
What flights does A3C94C operate?
Mode-S A3C94C has broadcast 20 distinct callsigns, including ENY3609, ENY4046, ENY3542, ENY4171, ENY3803.