sensors Mode-S transponder

A3A4ED

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N334CR · operated by AMERICAN AIRLINES INC

Hex
A3A4ED
Octal
50722355
Decimal
10,724,589
Country
US
Tail
N334CR
No current signal · last broadcast 1h ago
Flights observed
330
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S A3A4ED.

Country allocation

The ICAO 24-bit address A3A4ED 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
ENY4155 Envoy Air 7 2026-05-16
ENY4068 Envoy Air 5 2026-04-30
ENY3495 Envoy Air 5 2026-05-22
ENY3441 Envoy Air 5 2026-05-22
ENY4101 Envoy Air 4 2026-04-15
ENY4043 Envoy Air 4 2026-04-16
ENY3880 Envoy Air 4 2026-04-22
ENY3781 Envoy Air 4 2026-04-17
ENY3695 Envoy Air 4 2026-05-18
ENY3652 Envoy Air 4 2026-05-26
ENY3642 Envoy Air 4 2026-05-26
ENY3542 Envoy Air 4 2026-05-28
ENY3463 Envoy Air 4 2026-05-10
ENY4304 Envoy Air 3 2026-05-11
ENY4300 Envoy Air 3 2026-04-26
ENY4296 Envoy Air 3 2026-05-01
ENY4212 Envoy Air 3 2026-04-30
ENY4202 Envoy Air 3 2026-05-16
ENY4167 Envoy Air 3 2026-04-29
ENY4166 Envoy Air 3 2026-04-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 ENY3443 BOS → CMH May 29, 23:50 UTCMay 30, 01:05 UTC1h 15m
2026-05-29 ENY3443 BOS → CMH May 29, 21:45 UTCMay 29, 22:50 UTC1h 5m
2026-05-29 ENY4110 GGT → MIA May 29, 19:10 UTCMay 29, 20:15 UTC1h 5m
2026-05-29 ENY4110 GGT → MIA May 29, 19:04 UTCMay 29, 20:05 UTC1h 1m
2026-05-29 ENY4110 GGT → MIA May 29, 17:10 UTCMay 29, 18:00 UTC50m
2026-05-29 ENY3924 CMI → DFW May 29, 01:15 UTCMay 29, 16:10 UTC14h 55m
2026-05-28 ENY3538 ORD → CMH May 28, 21:30 UTCMay 28, 23:40 UTC2h 10m
2026-05-28 ENY3538 ORD → CMH May 28, 21:24 UTCMay 28, 23:37 UTC2h 13m
2026-05-28 ENY3538 ORD → CMH May 28, 18:25 UTCMay 28, 20:20 UTC1h 55m
2026-05-28 ENY3442 ORD → EWR May 28, 16:00 UTCMay 28, 17:10 UTC1h 10m
2026-05-28 ENY3442 ORD → EWR May 28, 15:55 UTCMay 28, 17:13 UTC1h 18m
2026-05-28 ENY3442 ORD → EWR May 28, 14:00 UTCMay 28, 15:00 UTC1h 0m
2026-05-28 ENY4179 DTW → DFW May 28, 11:15 UTCMay 28, 12:00 UTC45m
2026-05-28 ENY4179 DTW → DFW May 28, 11:10 UTCMay 28, 11:55 UTC45m
2026-05-28 ENY3537 DFW → FSM May 28, 04:10 UTCMay 28, 04:45 UTC35m
2026-05-28 ENY3542 CVG → BOS May 28, 01:20 UTCMay 28, 02:35 UTC1h 15m
2026-05-28 ENY3542 CVG → BOS May 28, 01:15 UTCMay 28, 02:32 UTC1h 17m
2026-05-27 ENY3542 CVG → BOS May 27, 23:20 UTCMay 28, 00:30 UTC1h 10m
2026-05-27 ENY3506 EVV → DFW May 27, 20:25 UTCMay 27, 22:00 UTC1h 35m
2026-05-27 ENY3506 EVV → DFW May 27, 18:15 UTCMay 27, 19:30 UTC1h 15m
2026-05-27 ENY3748 CVG → CLT May 27, 14:50 UTCMay 27, 16:45 UTC1h 55m
2026-05-27 ENY3748 CVG → CLT May 27, 14:46 UTCMay 27, 16:40 UTC1h 54m
2026-05-27 ENY3748 CVG → CLT May 27, 12:35 UTCMay 27, 14:00 UTC1h 25m
2026-05-27 ENY3787 IND → DCA May 27, 01:39 UTCMay 27, 02:59 UTC1h 20m
2026-05-26 ENY3787 IND → DCA May 26, 23:45 UTCMay 27, 00:49 UTC1h 5m
2026-05-26 ENY3977 DFW → STS May 26, 17:55 UTCMay 26, 20:05 UTC2h 10m
2026-05-26 ENY3977 DFW → STS May 26, 14:50 UTCMay 26, 16:50 UTC2h 0m
2026-05-26 ENY3642 DFW → LIT May 26, 03:19 UTCMay 26, 04:24 UTC1h 5m
2026-05-26 ENY3642 DFW → LIT May 26, 01:40 UTCMay 26, 02:44 UTC1h 5m
2026-05-26 ENY3652 ORD → MCI May 26, 00:19 UTCMay 26, 00:49 UTC30m
2026-05-25 ENY3652 ORD → MCI May 25, 19:40 UTCMay 25, 21:09 UTC1h 30m
2026-05-25 ENY3652 ORD → MCI May 25, 19:34 UTCMay 25, 21:15 UTC1h 41m
2026-05-25 ENY3652 ORD → MCI May 25, 17:45 UTCMay 25, 18:30 UTC45m
2026-05-25 ENY3644 DFW → MLI May 25, 15:45 UTCMay 25, 16:50 UTC1h 5m
2026-05-25 ENY3644 DFW → MLI May 25, 13:45 UTCMay 25, 14:55 UTC1h 10m
2026-05-24 ENY3526 DFW → SAT May 24, 16:50 UTCMay 24, 19:10 UTC2h 20m
2026-05-24 ENY3526 DFW → SAT May 24, 13:35 UTCMay 24, 15:50 UTC2h 15m
2026-05-24 ENY3828 SGF → DFW May 24, 10:30 UTCMay 24, 12:10 UTC1h 40m
2026-05-24 ENY3828 SGF → DFW May 24, 10:25 UTCMay 24, 12:06 UTC1h 41m
2026-05-24 ENY4015 DFW → EVV May 24, 02:40 UTCMay 24, 04:00 UTC1h 20m
2026-05-23 ENY3583 MHK → ORD May 23, 23:20 UTCMay 24, 00:05 UTC45m
2026-05-23 ENY3583 MHK → ORD May 23, 21:05 UTCMay 23, 21:55 UTC50m
2026-05-23 ENY3539 ORD → ICT May 23, 17:00 UTCMay 23, 19:00 UTC2h 1m
2026-05-23 ENY3539 ORD → ICT May 23, 16:59 UTCMay 23, 19:02 UTC2h 3m
2026-05-23 ENY3539 ORD → ICT May 23, 14:25 UTCMay 23, 15:35 UTC1h 10m
2026-05-23 ENY3369 CLT → CVG May 23, 02:25 UTCMay 23, 13:00 UTC10h 34m
2026-05-23 ENY3402 ORD → SYR May 23, 00:00 UTCMay 23, 00:45 UTC45m
2026-05-22 ENY3402 ORD → SYR May 22, 23:57 UTCMay 23, 00:40 UTC43m
2026-05-22 ENY3402 ORD → SYR May 22, 22:35 UTCMay 22, 23:10 UTC35m
2026-05-22 ENY3441 GSP → MIA May 22, 20:00 UTCMay 22, 21:20 UTC1h 20m

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 N334CR page for operator, model, and routing details .

Mode-S A3A4ED frequently asked

What is Mode-S code A3A4ED?
A3A4ED is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N334CR.
Where is Mode-S A3A4ED registered?
Mode-S code A3A4ED 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 A3A4ED 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 A3A4ED, octal 50722355, decimal 10,724,589.
What flights does A3A4ED operate?
Mode-S A3A4ED has broadcast 20 distinct callsigns, including ENY4155, ENY4068, ENY3495, ENY3441, ENY4101.