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 1h ago
Flights observed
681
Distinct callsigns
20
Country
US
Last broadcast
1h ago

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 8 2026-06-11
ENY3366 Envoy Air 8 2026-06-14
ENY4100 - 7 2026-07-09
ENY3576 Envoy Air 7 2026-06-20
ENY3538 Envoy Air 7 2026-06-08
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
2026-07-14 ENY4037 - Jul 14, 04:20 UTCJul 14, 06:20 UTC2h 0m
2026-07-13 ENY3440 - Jul 13, 22:40 UTCJul 14, 01:15 UTC2h 35m
2026-07-13 ENY3440 - Jul 13, 18:35 UTCJul 13, 21:00 UTC2h 25m
2026-07-13 ENY3992 BUR → PHX Jul 13, 16:25 UTCJul 13, 17:35 UTC1h 10m
2026-07-13 ENY3992 - Jul 13, 14:35 UTCJul 13, 15:35 UTC1h 0m
2026-07-13 ENY3984 - Jul 13, 11:40 UTCJul 13, 13:20 UTC1h 40m
2026-07-13 ENY3611 - Jul 13, 03:45 UTCJul 13, 04:10 UTC25m
2026-07-13 ENY3611 DFW → ABI Jul 13, 03:44 UTCJul 13, 04:14 UTC30m
2026-07-13 ENY3762 RAP → DFW Jul 13, 00:07 UTCJul 13, 02:41 UTC2h 34m
2026-07-12 ENY3762 - Jul 12, 20:05 UTCJul 13, 02:40 UTC6h 35m
2026-07-12 ENY3661 - Jul 12, 17:25 UTCJul 12, 18:35 UTC1h 10m
2026-07-12 ENY3661 - Jul 12, 15:10 UTCJul 12, 16:15 UTC1h 5m
2026-07-12 ENY3370 - Jul 12, 11:50 UTCJul 12, 13:35 UTC1h 45m
2026-07-12 ENY3370 BMI → DFW Jul 12, 11:46 UTCJul 12, 13:25 UTC1h 39m
2026-07-12 ENY4254 - Jul 12, 02:20 UTCJul 12, 04:15 UTC1h 55m
2026-07-12 ENY4254 DFW → BMI Jul 12, 02:17 UTCJul 12, 04:19 UTC2h 2m
2026-07-11 ENY3762 - Jul 11, 20:10 UTCJul 12, 01:00 UTC4h 50m
2026-07-11 ENY3768 DFW → DFW Jul 11, 13:25 UTCJul 11, 18:15 UTC4h 50m
2026-07-11 ENY3725 - Jul 11, 11:10 UTCJul 11, 12:00 UTC50m
2026-07-11 ENY3724 - Jul 11, 03:45 UTCJul 11, 04:25 UTC40m
2026-07-11 ENY3631 - Jul 11, 01:25 UTCJul 11, 02:15 UTC50m
2026-07-10 ENY3627 - Jul 10, 22:20 UTCJul 11, 00:15 UTC1h 55m
2026-07-10 ENY3796 MSP → DCA Jul 10, 18:55 UTCJul 10, 20:55 UTC2h 0m
2026-07-10 ENY3796 DCA → MSP Jul 10, 15:10 UTCJul 10, 17:20 UTC2h 10m
2026-07-10 ENY3630 - Jul 10, 11:10 UTCJul 10, 13:10 UTC2h 0m
2026-07-10 ENY3362 - Jul 10, 03:15 UTCJul 10, 03:55 UTC40m
2026-07-10 ENY4145 - Jul 10, 00:25 UTCJul 10, 01:10 UTC45m
2026-07-09 ENY4145 - Jul 9, 22:35 UTCJul 9, 23:15 UTC40m
2026-07-09 ENY3849 ZCL → DFW Jul 9, 19:24 UTCJul 9, 21:14 UTC1h 50m
2026-07-09 ENY3849 DFW → DFW Jul 9, 16:35 UTCJul 9, 21:15 UTC4h 40m
2026-07-09 ENY4100 - Jul 9, 14:05 UTCJul 9, 15:15 UTC1h 10m
2026-07-09 ENY4100 CRP → DFW Jul 9, 14:03 UTCJul 9, 15:09 UTC1h 6m
2026-07-09 ENY4100 - Jul 9, 12:20 UTCJul 9, 13:10 UTC50m
2026-07-09 ENY3393 - Jul 9, 10:15 UTCJul 9, 10:50 UTC35m
2026-07-09 ENY3349 DFW → ACT Jul 9, 03:50 UTCJul 9, 04:10 UTC20m
2026-07-09 ENY3349 DFW → ACT Jul 9, 03:50 UTCJul 9, 04:13 UTC23m
2026-07-09 ENY3883 - Jul 9, 00:45 UTCJul 9, 02:25 UTC1h 40m
2026-07-09 ENY3883 MOB → DFW Jul 9, 00:44 UTCJul 9, 02:14 UTC1h 30m
2026-07-08 ENY3883 - Jul 8, 22:40 UTCJul 8, 23:40 UTC1h 0m
2026-07-08 ENY3506 - Jul 8, 20:00 UTCJul 8, 21:15 UTC1h 15m
2026-07-08 ENY3506 - Jul 8, 17:30 UTCJul 8, 18:30 UTC1h 0m
2026-07-08 ENY3551 - Jul 8, 15:25 UTCJul 8, 16:10 UTC45m
2026-07-08 ENY3551 - Jul 8, 13:55 UTCJul 8, 14:15 UTC20m
2026-07-08 ENY4067 - Jul 8, 11:10 UTCJul 8, 12:20 UTC1h 10m
2026-07-08 ENY4067 BTR → DFW Jul 8, 11:07 UTCJul 8, 12:10 UTC1h 3m
2026-07-08 ENY4061 DFW → BTR Jul 8, 02:45 UTCJul 8, 03:45 UTC1h 0m
2026-07-07 ENY3443 - Jul 7, 23:55 UTCJul 8, 01:10 UTC1h 15m
2026-07-07 ENY3443 BRO → DFW Jul 7, 23:48 UTCJul 8, 01:03 UTC1h 15m
2026-07-07 ENY3443 - Jul 7, 21:30 UTCJul 7, 22:40 UTC1h 10m
2026-07-07 ENY3636 - Jul 7, 19:15 UTCJul 7, 20:10 UTC55m

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 1h ago.
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, ENY3366, ENY4100, ENY3576, ENY3538.