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 2h ago
Flights observed
309
Distinct callsigns
20
Country
US
Last broadcast
2h ago

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 - 6 2026-06-30
ENY3700 Envoy Air 5 2026-06-17
ENY3636 - 5 2026-06-17
ENY3508 - 5 2026-07-07
ENY3484 Envoy Air 5 2026-06-16
ENY3388 - 5 2026-06-28
ENY4081 - 4 2026-07-06
ENY3966 Envoy Air 4 2026-06-26
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
ENY4128 Envoy Air 3 2026-06-27
ENY4126 - 3 2026-07-07
ENY4120 - 3 2026-06-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 ENY3750 - Jul 13, 23:30 UTCJul 14, 00:25 UTC55m
2026-07-13 ENY3750 - Jul 13, 21:20 UTCJul 13, 22:10 UTC50m
2026-07-13 ENY3462 - Jul 13, 18:30 UTCJul 13, 20:20 UTC1h 50m
2026-07-13 ENY3462 - Jul 13, 16:00 UTCJul 13, 17:45 UTC1h 45m
2026-07-13 ENY3710 - Jul 13, 12:40 UTCJul 13, 14:45 UTC2h 5m
2026-07-13 ENY3685 DCA → DSM Jul 13, 01:35 UTCJul 13, 03:30 UTC1h 55m
2026-07-12 ENY3750 - Jul 12, 23:05 UTCJul 13, 00:01 UTC55m
2026-07-12 ENY3750 - Jul 12, 20:20 UTCJul 12, 21:10 UTC50m
2026-07-12 ENY3841 - Jul 12, 16:01 UTCJul 12, 17:50 UTC1h 50m
2026-07-12 ENY3841 - Jul 12, 15:57 UTCJul 12, 17:51 UTC1h 54m
2026-07-12 ENY3841 - Jul 12, 13:01 UTCJul 12, 15:01 UTC2h 0m
2026-07-12 ENY3835 - Jul 12, 10:25 UTCJul 12, 11:30 UTC1h 5m
2026-07-12 ENY3914 - Jul 12, 02:15 UTCJul 12, 03:05 UTC50m
2026-07-11 ENY3622 - Jul 11, 21:30 UTCJul 11, 23:15 UTC1h 45m
2026-07-11 ENY3622 EYW → DCA Jul 11, 21:23 UTCJul 11, 23:36 UTC2h 13m
2026-07-11 ENY3622 - Jul 11, 18:00 UTCJul 11, 20:20 UTC2h 20m
2026-07-11 ENY3997 - Jul 11, 15:00 UTCJul 11, 16:25 UTC1h 25m
2026-07-11 ENY3997 - Jul 11, 12:30 UTCJul 11, 14:05 UTC1h 35m
2026-07-11 ENY4056 - Jul 11, 10:15 UTCJul 11, 11:10 UTC55m
2026-07-11 ENY3975 - Jul 11, 03:20 UTCJul 11, 04:05 UTC45m
2026-07-10 ENY3581 - Jul 10, 23:40 UTCJul 11, 01:15 UTC1h 35m
2026-07-10 ENY3581 - Jul 10, 21:00 UTCJul 10, 22:30 UTC1h 30m
2026-07-10 ENY4138 - Jul 10, 18:30 UTCJul 10, 19:55 UTC1h 25m
2026-07-10 ENY4138 - Jul 10, 15:40 UTCJul 10, 17:00 UTC1h 20m
2026-07-10 ENY3824 - Jul 10, 12:25 UTCJul 10, 14:25 UTC2h 0m
2026-07-09 ENY4086 PHX → XNA Jul 9, 23:10 UTCJul 10, 01:20 UTC2h 10m
2026-07-09 ENY3514 - Jul 9, 20:05 UTCJul 9, 21:50 UTC1h 45m
2026-07-09 ENY3514 - Jul 9, 17:35 UTCJul 9, 19:20 UTC1h 45m
2026-07-09 ENY3879 - Jul 9, 13:10 UTCJul 9, 15:50 UTC2h 40m
2026-07-09 ENY3923 - Jul 9, 02:15 UTCJul 9, 05:10 UTC2h 55m
2026-07-08 ENY3513 - Jul 8, 23:20 UTCJul 9, 00:35 UTC1h 15m
2026-07-08 ENY3513 SBP → PHX Jul 8, 23:15 UTCJul 9, 00:31 UTC1h 16m
2026-07-08 ENY3513 PHX → SBP Jul 8, 21:10 UTCJul 8, 22:20 UTC1h 10m
2026-07-08 ENY4070 - Jul 8, 18:05 UTCJul 8, 19:45 UTC1h 40m
2026-07-08 ENY4070 RAP → PHX Jul 8, 17:46 UTCJul 8, 19:45 UTC1h 59m
2026-07-08 ENY3766 - Jul 8, 15:00 UTCJul 8, 16:35 UTC1h 35m
2026-07-08 ENY3766 ORD → RAP Jul 8, 14:56 UTCJul 8, 16:44 UTC1h 48m
2026-07-08 ENY3590 - Jul 8, 11:35 UTCJul 8, 13:05 UTC1h 30m
2026-07-08 ENY4037 - Jul 8, 02:50 UTCJul 8, 04:55 UTC2h 5m
2026-07-07 ENY3826 - Jul 7, 23:20 UTCJul 8, 01:25 UTC2h 5m
2026-07-07 ENY3826 - Jul 7, 20:05 UTCJul 7, 22:10 UTC2h 5m
2026-07-07 ENY3508 - Jul 7, 16:10 UTCJul 7, 18:55 UTC2h 45m
2026-07-07 ENY3773 - Jul 7, 13:25 UTCJul 7, 14:30 UTC1h 5m
2026-07-07 ENY3773 - Jul 7, 12:30 UTCJul 7, 12:40 UTC10m
2026-07-07 ENY3597 PHX → RDM Jul 7, 03:45 UTCJul 7, 05:45 UTC2h 0m
2026-07-07 ENY4126 - Jul 7, 01:45 UTCJul 7, 02:10 UTC25m
2026-07-07 ENY4126 TUS → PHX Jul 7, 01:44 UTCJul 7, 02:12 UTC28m
2026-07-07 ENY4126 PHX → TUS Jul 7, 00:25 UTCJul 7, 00:55 UTC30m
2026-07-06 ENY4081 - Jul 6, 19:50 UTCJul 6, 22:25 UTC2h 35m
2026-07-06 ENY4081 - Jul 6, 16:00 UTCJul 6, 18:40 UTC2h 40m

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 2h ago.
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, ENY3700, ENY3636, ENY3508, ENY3484.