sensors Mode-S transponder

A3BEFA

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N340TC · operated by AMERICAN AIRLINES INC

Hex
A3BEFA
Octal
50737372
Decimal
10,731,258
Country
US
Tail
N340TC
No current signal · last broadcast Jul 26, 22:30 UTC
Flights observed
744
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:30 UTC

Last known position

Most recent position reported by Mode-S A3BEFA.

Country allocation

The ICAO 24-bit address A3BEFA 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
ENY4113 Envoy Air 10 2026-07-25
ENY3576 Envoy Air 9 2026-07-26
ENY3538 - 9 2026-07-16
ENY3366 Envoy Air 8 2026-06-14
ENY4100 - 7 2026-07-09
ENY3506 - 7 2026-07-08
ENY4109 - 6 2026-07-01
ENY4096 Envoy Air 6 2026-04-15
ENY3680 - 6 2026-06-30
ENY3661 - 6 2026-07-12
ENY3501 Envoy Air 6 2026-06-13
ENY3386 - 6 2026-07-01
ENY4106 Envoy Air 5 2026-05-13
ENY4087 - 5 2026-07-06
ENY4069 - 5 2026-06-25
ENY4060 - 5 2026-06-18
ENY4040 Envoy Air 5 2026-05-29
ENY3869 Envoy Air 5 2026-05-01
ENY3838 Envoy Air 5 2026-05-26
ENY3819 - 5 2026-07-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ENY3580 MSY → DCA Jul 26, 21:00 UTCJul 26, 22:30 UTC1h 30m
2026-07-26 ENY3580 MSY → DCA Jul 26, 18:25 UTCJul 26, 19:45 UTC1h 20m
2026-07-26 ENY3576 ORD → FAR Jul 26, 15:55 UTCJul 26, 17:05 UTC1h 10m
2026-07-26 ENY3576 ORD → FAR Jul 26, 13:55 UTCJul 26, 15:00 UTC1h 5m
2026-07-26 ENY3930 GRR → MIA Jul 26, 11:10 UTCJul 26, 12:05 UTC55m
2026-07-26 ENY3900 EWR → ORD Jul 26, 02:50 UTCJul 26, 03:30 UTC40m
2026-07-25 ENY4113 ILM → MIA Jul 25, 23:55 UTCJul 26, 01:05 UTC1h 10m
2026-07-25 ENY4113 ILM → MIA Jul 25, 21:55 UTCJul 25, 22:50 UTC55m
2026-07-25 ENY3516 ORD → DSM Jul 25, 19:00 UTCJul 25, 20:15 UTC1h 15m
2026-07-25 ENY3516 ORD → DSM Jul 25, 18:54 UTCJul 25, 20:09 UTC1h 15m
2026-07-25 ENY3516 ORD → DSM Jul 25, 17:00 UTCJul 25, 18:00 UTC1h 0m
2026-07-25 ENY4063 PHX → IAH Jul 25, 01:20 UTCJul 25, 15:40 UTC14h 20m
2026-07-24 ENY3481 DFW → CHS Jul 24, 22:30 UTCJul 24, 23:35 UTC1h 5m
2026-07-24 ENY3481 DFW → CHS Jul 24, 20:15 UTCJul 24, 21:25 UTC1h 10m
2026-07-24 ENY3384 CHS → DCA Jul 24, 18:35 UTCJul 24, 19:20 UTC45m
2026-07-24 ENY3384 CHS → DCA Jul 24, 16:45 UTCJul 24, 17:25 UTC40m
2026-07-24 ENY3390 EYW → ORD Jul 24, 13:55 UTCJul 24, 15:40 UTC1h 45m
2026-07-24 ENY3390 EYW → ORD Jul 24, 11:10 UTCJul 24, 12:55 UTC1h 45m
2026-07-23 ENY9866 BOS → ORD Jul 23, 23:10 UTCJul 24, 00:05 UTC55m
2026-07-19 ENY9865 - Jul 19, 19:20 UTCJul 19, 20:15 UTC55m
2026-07-19 ENY3768 DFW → DFW Jul 19, 13:45 UTCJul 19, 18:20 UTC4h 35m
2026-07-19 ENY3473 STL → MIA Jul 19, 10:30 UTCJul 19, 12:05 UTC1h 35m
2026-07-19 ENY3798 - Jul 19, 03:00 UTCJul 19, 04:35 UTC1h 35m
2026-07-19 ENY3925 BNA → DFW Jul 19, 00:00 UTCJul 19, 01:30 UTC1h 30m
2026-07-18 ENY3823 TPA → BNA Jul 18, 20:55 UTCJul 18, 22:25 UTC1h 30m
2026-07-18 ENY3823 - Jul 18, 18:40 UTCJul 18, 20:10 UTC1h 30m
2026-07-18 ENY3825 TPA → BNA Jul 18, 16:05 UTCJul 18, 17:40 UTC1h 35m
2026-07-18 ENY3825 TPA → BNA Jul 18, 16:05 UTCJul 18, 17:35 UTC1h 30m
2026-07-18 ENY3825 - Jul 18, 13:55 UTCJul 18, 15:15 UTC1h 20m
2026-07-18 ENY3912 DFW → BNA Jul 18, 11:15 UTCJul 18, 12:45 UTC1h 30m
2026-07-18 ENY3912 DFW → BNA Jul 18, 11:15 UTCJul 18, 12:47 UTC1h 32m
2026-07-17 ENY3449 - Jul 17, 23:39 UTCJul 18, 01:45 UTC2h 5m
2026-07-17 ENY3449 - Jul 17, 20:29 UTCJul 17, 22:35 UTC2h 5m
2026-07-17 ENY3577 HSV → DFW Jul 17, 17:40 UTCJul 17, 19:09 UTC1h 30m
2026-07-17 ENY3577 HSV → DFW Jul 17, 17:39 UTCJul 17, 19:06 UTC1h 27m
2026-07-17 ENY3577 DFW → HSV Jul 17, 15:00 UTCJul 17, 16:24 UTC1h 25m
2026-07-17 ENY3867 - Jul 17, 12:50 UTCJul 17, 13:55 UTC1h 5m
2026-07-17 ENY3868 - Jul 17, 02:05 UTCJul 17, 02:54 UTC50m
2026-07-16 ENY3538 - Jul 16, 22:15 UTCJul 17, 00:30 UTC2h 15m
2026-07-16 ENY3538 - Jul 16, 19:20 UTCJul 16, 21:25 UTC2h 5m
2026-07-16 ENY3503 - Jul 16, 15:19 UTCJul 16, 17:00 UTC1h 40m
2026-07-16 ENY3503 DFW → ECP Jul 16, 12:44 UTCJul 16, 14:25 UTC1h 40m
2026-07-16 ENY3411 - Jul 16, 10:20 UTCJul 16, 11:10 UTC50m
2026-07-16 ENY3357 - Jul 16, 03:55 UTCJul 16, 04:40 UTC45m
2026-07-16 ENY3357 DFW → GCK Jul 16, 03:53 UTCJul 16, 04:55 UTC1h 2m
2026-07-16 ENY3548 - Jul 16, 02:30 UTCJul 16, 03:00 UTC30m
2026-07-16 ENY3548 GRK → DFW Jul 16, 02:24 UTCJul 16, 03:00 UTC36m
2026-07-16 ENY3548 - Jul 16, 01:20 UTCJul 16, 01:40 UTC20m
2026-07-15 ENY3795 - Jul 15, 23:05 UTCJul 16, 00:10 UTC1h 5m
2026-07-15 ENY3795 - Jul 15, 20:20 UTCJul 15, 21:25 UTC1h 5m

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 N340TC page for operator, model, and routing details .

Mode-S A3BEFA frequently asked

What is Mode-S code A3BEFA?
A3BEFA is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N340TC.
Where is Mode-S A3BEFA registered?
Mode-S code A3BEFA 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 A3BEFA broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3BEFA, octal 50737372, decimal 10,731,258.
What flights does A3BEFA operate?
Mode-S A3BEFA has broadcast 20 distinct callsigns, including ENY4113, ENY3576, ENY3538, ENY3366, ENY4100.