Apparatus

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sensors Mode-S transponder

A3C5AD

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N342KR · operated by AMERICAN AIRLINES INC

Hex
A3C5AD
Octal
50742655
Decimal
10,732,973
Country
US
Tail
N342KR
No current signal · last broadcast Jul 26, 21:15 UTC
Flights observed
377
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:15 UTC

Last known position

Most recent position reported by Mode-S A3C5AD.

Country allocation

The ICAO 24-bit address A3C5AD 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
ENY3708 Envoy Air 8 2026-07-22
ENY3966 Envoy Air 5 2026-07-26
ENY3700 Envoy Air 5 2026-06-17
ENY3636 - 5 2026-06-17
ENY3578 Envoy Air 5 2026-07-23
ENY3508 - 5 2026-07-07
ENY3484 Envoy Air 5 2026-06-16
ENY3483 Envoy Air 5 2026-07-24
ENY3449 Envoy Air 5 2026-07-20
ENY3388 - 5 2026-06-28
ENY4081 - 4 2026-07-06
ENY3964 - 4 2026-06-25
ENY3826 - 4 2026-07-07
ENY3770 Envoy Air 4 2026-07-05
ENY3750 - 4 2026-07-13
ENY3462 - 4 2026-07-13
ENY3347 - 4 2026-06-30
ENY3335 - 4 2026-07-05
ENY9881 Envoy Air 3 2026-05-30
ENY4166 Envoy Air 3 2026-06-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ENY3966 DFW → MSY Jul 26, 15:50 UTCJul 26, 21:15 UTC5h 25m
2026-07-26 ENY4073 CMI → DFW Jul 26, 12:40 UTCJul 26, 14:10 UTC1h 30m
2026-07-26 ENY3887 DFW → CMI Jul 26, 02:15 UTCJul 26, 03:55 UTC1h 40m
2026-07-25 ENY3382 MSY → DCA Jul 25, 23:30 UTCJul 26, 00:00 UTC30m
2026-07-25 ENY3382 MSY → DCA Jul 25, 22:00 UTCJul 25, 22:15 UTC15m
2026-07-25 ENY3594 AUS → RDU Jul 25, 18:10 UTCJul 25, 19:40 UTC1h 30m
2026-07-25 ENY3594 AUS → RDU Jul 25, 15:55 UTCJul 25, 17:20 UTC1h 25m
2026-07-25 ENY3867 BWI → ORD Jul 25, 13:50 UTCJul 25, 14:55 UTC1h 5m
2026-07-25 ENY3868 DCA → CVG Jul 25, 01:25 UTCJul 25, 02:10 UTC45m
2026-07-24 ENY3678 ABQ → AUS Jul 24, 22:55 UTCJul 25, 00:05 UTC1h 10m
2026-07-24 ENY3678 ABQ → AUS Jul 24, 20:40 UTCJul 24, 21:50 UTC1h 10m
2026-07-24 ENY3483 SYR → ORD Jul 24, 17:50 UTCJul 24, 18:50 UTC1h 0m
2026-07-24 ENY3483 SYR → ORD Jul 24, 15:55 UTCJul 24, 16:50 UTC55m
2026-07-24 ENY3343 DFW → ELP Jul 24, 13:50 UTCJul 24, 14:40 UTC50m
2026-07-24 ENY3541 HSV → ORD Jul 24, 02:25 UTCJul 24, 03:10 UTC45m
2026-07-23 ENY4125 MIA → CVG Jul 23, 21:55 UTCJul 24, 00:35 UTC2h 40m
2026-07-23 ENY4125 MIA → CVG Jul 23, 17:55 UTCJul 23, 20:50 UTC2h 55m
2026-07-23 ENY3578 ORD → XNA Jul 23, 14:35 UTCJul 23, 16:00 UTC1h 25m
2026-07-23 ENY3578 ORD → XNA Jul 23, 14:33 UTCJul 23, 15:58 UTC1h 25m
2026-07-23 ENY3578 ORD → XNA Jul 23, 12:20 UTCJul 23, 13:40 UTC1h 20m
2026-07-23 ENY3919 GRK → DFW Jul 23, 10:10 UTCJul 23, 10:45 UTC35m
2026-07-23 ENY3957 DCA → XNA Jul 23, 02:50 UTCJul 23, 03:25 UTC35m
2026-07-23 ENY3548 - Jul 23, 01:10 UTCJul 23, 01:40 UTC30m
2026-07-22 ENY3548 - Jul 22, 23:50 UTCJul 23, 00:20 UTC30m
2026-07-22 ENY3582 TAM → DFW Jul 22, 20:30 UTCJul 22, 22:15 UTC1h 45m
2026-07-22 ENY3582 TAM → DFW Jul 22, 18:00 UTCJul 22, 19:35 UTC1h 35m
2026-07-22 ENY3708 BOS → STL Jul 22, 15:30 UTCJul 22, 16:15 UTC45m
2026-07-22 ENY3708 BOS → STL Jul 22, 13:45 UTCJul 22, 14:25 UTC40m
2026-07-22 ENY3372 ORD → COU Jul 22, 11:10 UTCJul 22, 12:15 UTC1h 5m
2026-07-22 ENY3589 DFW → LRD Jul 22, 03:50 UTCJul 22, 04:45 UTC55m
2026-07-22 ENY3787 IND → DCA Jul 22, 01:10 UTCJul 22, 02:30 UTC1h 20m
2026-07-21 ENY3787 IND → DCA Jul 21, 23:15 UTCJul 22, 00:15 UTC1h 0m
2026-07-21 ENY3433 - Jul 21, 15:55 UTCJul 21, 21:05 UTC5h 10m
2026-07-21 ENY3624 - Jul 21, 13:25 UTCJul 21, 14:20 UTC55m
2026-07-21 ENY3665 DFW → SGF Jul 21, 03:20 UTCJul 21, 04:15 UTC55m
2026-07-21 ENY3665 DFW → SGF Jul 21, 03:19 UTCJul 21, 04:12 UTC53m
2026-07-20 ENY3449 MIA → BWI Jul 20, 23:40 UTCJul 21, 01:45 UTC2h 5m
2026-07-20 ENY3449 MIA → BWI Jul 20, 20:10 UTCJul 20, 22:15 UTC2h 5m
2026-07-20 ENY3468 ATL → ORD Jul 20, 17:30 UTCJul 20, 18:10 UTC40m
2026-07-20 ENY3468 ATL → ORD Jul 20, 17:26 UTCJul 20, 18:10 UTC44m
2026-07-20 ENY3468 ATL → ORD Jul 20, 13:55 UTCJul 20, 14:20 UTC25m
2026-07-20 ENY3664 CMH → ORD Jul 20, 10:10 UTCJul 20, 11:55 UTC1h 45m
2026-07-20 ENY3658 - Jul 20, 03:25 UTCJul 20, 05:15 UTC1h 50m
2026-07-19 ENY3502 - Jul 19, 23:45 UTCJul 20, 01:40 UTC1h 55m
2026-07-19 ENY3502 - Jul 19, 19:30 UTCJul 19, 21:35 UTC2h 5m
2026-07-19 ENY9866 - Jul 19, 17:10 UTCJul 19, 18:00 UTC50m
2026-07-16 ENY9866 - Jul 16, 20:00 UTCJul 16, 20:55 UTC55m
2026-07-16 ENY3442 - Jul 16, 15:55 UTCJul 16, 17:14 UTC1h 20m
2026-07-16 ENY3442 BRO → DFW Jul 16, 15:47 UTCJul 16, 17:08 UTC1h 21m
2026-07-16 ENY3442 - Jul 16, 13:45 UTCJul 16, 14:45 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 N342KR page for operator, model, and routing details .

Mode-S A3C5AD frequently asked

What is Mode-S code A3C5AD?
A3C5AD is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N342KR.
Where is Mode-S A3C5AD registered?
Mode-S code A3C5AD 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 A3C5AD broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3C5AD, octal 50742655, decimal 10,732,973.
What flights does A3C5AD operate?
Mode-S A3C5AD has broadcast 20 distinct callsigns, including ENY3708, ENY3966, ENY3700, ENY3636, ENY3578.