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
Broadcasting now · callsign ENY4064 · 35,000 ft
Flights observed
346
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Current position

A3BEFA is currently broadcasting. Map zoomed to live position.

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 6 2026-04-24
ENY4096 Envoy Air 6 2026-04-15
ENY4106 Envoy Air 5 2026-05-13
ENY4040 Envoy Air 5 2026-05-29
ENY3869 Envoy Air 5 2026-05-01
ENY3838 Envoy Air 5 2026-05-26
ENY3538 Envoy Air 5 2026-05-26
ENY3506 Envoy Air 5 2026-05-26
ENY3472 Envoy Air 5 2026-05-06
ENY4109 - 4 2026-04-13
ENY4100 Envoy Air 4 2026-05-01
ENY3386 - 4 2026-04-13
ENY4260 Envoy Air 3 2026-04-23
ENY4216 Envoy Air 3 2026-05-17
ENY4190 Envoy Air 3 2026-05-14
ENY4153 Envoy Air 3 2026-05-22
ENY4143 Envoy Air 3 2026-04-26
ENY4137 Envoy Air 3 2026-05-25
ENY4087 Envoy Air 3 2026-04-20
ENY3903 Envoy Air 3 2026-05-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 ENY3501 LIT → ORD May 29, 23:05 UTCMay 29, 23:35 UTC30m
2026-05-29 ENY3501 LIT → ORD May 29, 21:30 UTCMay 29, 22:10 UTC40m
2026-05-29 ENY4040 ORD → PIT May 29, 20:05 UTCMay 29, 20:25 UTC20m
2026-05-29 ENY4040 ORD → PIT May 29, 18:25 UTCMay 29, 18:45 UTC20m
2026-05-29 ENY3503 YYZ → ORD May 29, 15:10 UTCMay 29, 16:55 UTC1h 46m
2026-05-29 ENY3503 YYZ → ORD May 29, 15:04 UTCMay 29, 16:51 UTC1h 47m
2026-05-29 ENY3503 YYZ → ORD May 29, 12:50 UTCMay 29, 14:15 UTC1h 25m
2026-05-29 ENY3579 DOM → MIA May 29, 00:50 UTCMay 29, 02:35 UTC1h 45m
2026-05-28 ENY3579 DOM → MIA May 28, 22:40 UTCMay 29, 00:05 UTC1h 25m
2026-05-28 ENY3374 PHX → STS May 28, 19:30 UTCMay 28, 20:50 UTC1h 20m
2026-05-28 ENY3374 PHX → STS May 28, 17:05 UTCMay 28, 18:30 UTC1h 25m
2026-05-28 ENY3468 ATL → ORD May 28, 15:00 UTCMay 28, 15:40 UTC40m
2026-05-28 ENY3468 ATL → ORD May 28, 13:35 UTCMay 28, 14:10 UTC35m
2026-05-28 ENY4195 ORD → GRB May 28, 11:10 UTCMay 28, 12:05 UTC55m
2026-05-28 ENY4227 AUS → RNO May 28, 03:50 UTCMay 28, 04:30 UTC40m
2026-05-28 ENY3557 CMH → DFW May 28, 00:00 UTCMay 28, 02:00 UTC2h 0m
2026-05-27 ENY3557 CMH → DFW May 27, 21:15 UTCMay 27, 23:05 UTC1h 50m
2026-05-27 ENY4095 BIL → DFW May 27, 19:20 UTCMay 27, 20:00 UTC40m
2026-05-27 ENY4095 BIL → DFW May 27, 17:50 UTCMay 27, 18:25 UTC35m
2026-05-27 ENY3366 MSN → ORD May 27, 15:48 UTCMay 27, 16:20 UTC32m
2026-05-27 ENY3366 MSN → ORD May 27, 14:30 UTCMay 27, 14:55 UTC25m
2026-05-27 ENY3886 CLT → CVG May 27, 10:10 UTCMay 27, 12:35 UTC2h 25m
2026-05-27 ENY3619 MIA → CVG May 27, 01:19 UTCMay 27, 03:04 UTC1h 45m
2026-05-26 ENY3538 ORD → CMH May 26, 21:29 UTCMay 26, 23:35 UTC2h 5m
2026-05-26 ENY3538 ORD → CMH May 26, 18:30 UTCMay 26, 20:20 UTC1h 50m
2026-05-26 ENY3838 DCA → TLH May 26, 16:05 UTCMay 26, 16:50 UTC45m
2026-05-26 ENY3838 DCA → TLH May 26, 14:24 UTCMay 26, 15:09 UTC45m
2026-05-26 ENY4262 ORD → CVG May 26, 10:10 UTCMay 26, 12:05 UTC1h 55m
2026-05-26 ENY4262 ORD → CVG May 26, 10:05 UTCMay 26, 11:59 UTC1h 54m
2026-05-26 ENY3658 DFW → FWA May 26, 02:49 UTCMay 26, 04:35 UTC1h 45m
2026-05-26 ENY3658 DFW → FWA May 26, 02:49 UTCMay 26, 04:44 UTC1h 55m
2026-05-26 ENY3506 EVV → DFW May 26, 00:39 UTCMay 26, 01:10 UTC30m
2026-05-25 ENY3506 EVV → DFW May 25, 21:45 UTCMay 25, 21:54 UTC10m
2026-05-25 ENY3506 EVV → DFW May 25, 20:04 UTCMay 25, 21:54 UTC1h 50m
2026-05-25 ENY3506 EVV → DFW May 25, 19:59 UTCMay 25, 21:26 UTC1h 27m
2026-05-25 ENY3506 EVV → DFW May 25, 17:25 UTCMay 25, 18:40 UTC1h 15m
2026-05-25 ENY4137 DCA → RDU May 25, 14:05 UTCMay 25, 14:50 UTC45m
2026-05-25 ENY4137 DCA → RDU May 25, 14:00 UTCMay 25, 14:50 UTC50m
2026-05-25 ENY4137 DCA → RDU May 25, 12:10 UTCMay 25, 12:55 UTC45m
2026-05-25 ENY3393 RDU → ORD May 25, 10:25 UTCMay 25, 10:50 UTC25m
2026-05-25 ENY3349 STS → PHX May 25, 03:55 UTCMay 25, 04:15 UTC20m
2026-05-25 ENY3538 ORD → CMH May 25, 01:55 UTCMay 25, 02:45 UTC50m
2026-05-25 ENY3538 ORD → CMH May 25, 00:33 UTCMay 25, 02:45 UTC2h 12m
2026-05-24 ENY3538 ORD → CMH May 24, 18:30 UTCMay 24, 20:25 UTC1h 55m
2026-05-24 ENY3838 DCA → TLH May 24, 16:05 UTCMay 24, 16:55 UTC50m
2026-05-24 ENY3838 DCA → TLH May 24, 16:04 UTCMay 24, 16:54 UTC50m
2026-05-24 ENY3838 DCA → TLH May 24, 14:30 UTCMay 24, 15:20 UTC50m
2026-05-24 ENY3691 DFW → AGU May 24, 00:15 UTCMay 24, 01:15 UTC1h 0m
2026-05-23 ENY3691 DFW → AGU May 23, 22:20 UTCMay 23, 23:15 UTC55m
2026-05-23 ENY3764 BGR → ORD May 23, 15:05 UTCMay 23, 20:45 UTC5h 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 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?
Yes. Mode-S A3BEFA is currently airborne.
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, ENY4096, ENY4106, ENY4040, ENY3869.