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
650
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
ENY4104 - 9 2026-06-22
ENY3977 Envoy Air 8 2026-06-15
ENY4155 Envoy Air 7 2026-05-16
ENY3455 - 7 2026-07-02
ENY4110 Envoy Air 6 2026-06-01
ENY4101 - 6 2026-07-06
ENY3556 - 6 2026-06-28
ENY3454 Envoy Air 6 2026-06-30
ENY3439 - 6 2026-07-07
ENY3409 - 6 2026-07-07
ENY4176 - 5 2026-06-27
ENY4068 Envoy Air 5 2026-04-30
ENY4009 - 5 2026-06-22
ENY3981 - 5 2026-06-26
ENY3934 - 5 2026-06-27
ENY3930 - 5 2026-07-05
ENY3677 Envoy Air 5 2026-06-08
ENY3600 - 5 2026-06-30
ENY3523 Envoy Air 5 2026-07-02
ENY3495 Envoy Air 5 2026-05-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 ENY3484 - Jul 14, 01:55 UTCJul 14, 03:05 UTC1h 10m
2026-07-13 ENY3429 - Jul 13, 21:35 UTCJul 13, 23:55 UTC2h 20m
2026-07-13 ENY3429 - Jul 13, 18:25 UTCJul 13, 20:40 UTC2h 15m
2026-07-13 ENY3737 - Jul 13, 16:25 UTCJul 13, 17:25 UTC1h 0m
2026-07-13 ENY3737 ABI → DFW Jul 13, 16:21 UTCJul 13, 17:23 UTC1h 2m
2026-07-13 ENY3911 - Jul 13, 02:35 UTCJul 13, 04:20 UTC1h 45m
2026-07-12 ENY3826 - Jul 12, 23:15 UTCJul 13, 01:25 UTC2h 10m
2026-07-12 ENY3826 PHX → TUL Jul 12, 20:25 UTCJul 12, 22:30 UTC2h 5m
2026-07-12 ENY9872 DFW → PHX Jul 12, 17:35 UTCJul 12, 19:30 UTC1h 55m
2026-07-12 ENY3789 - Jul 12, 14:45 UTCJul 12, 15:40 UTC55m
2026-07-12 ENY3789 - Jul 12, 13:01 UTCJul 12, 14:01 UTC1h 0m
2026-07-12 ENY3828 - Jul 12, 10:35 UTCJul 12, 12:10 UTC1h 35m
2026-07-12 ENY4015 - Jul 12, 03:01 UTCJul 12, 04:50 UTC1h 50m
2026-07-12 ENY3443 - Jul 12, 00:45 UTCJul 12, 01:55 UTC1h 10m
2026-07-11 ENY3443 - Jul 11, 21:55 UTCJul 11, 22:55 UTC1h 0m
2026-07-11 ENY4263 - Jul 11, 17:55 UTCJul 11, 20:30 UTC2h 35m
2026-07-11 ENY4263 - Jul 11, 14:40 UTCJul 11, 16:50 UTC2h 10m
2026-07-11 ENY4261 - Jul 11, 11:25 UTCJul 11, 13:20 UTC1h 55m
2026-07-11 ENY4260 - Jul 11, 00:40 UTCJul 11, 02:30 UTC1h 50m
2026-07-10 ENY3580 - Jul 10, 20:55 UTCJul 10, 22:30 UTC1h 35m
2026-07-10 ENY3580 - Jul 10, 18:20 UTCJul 10, 19:40 UTC1h 20m
2026-07-10 ENY3442 - Jul 10, 15:55 UTCJul 10, 17:05 UTC1h 10m
2026-07-10 ENY3442 - Jul 10, 13:50 UTCJul 10, 14:55 UTC1h 5m
2026-07-10 ENY3353 - Jul 10, 10:40 UTCJul 10, 12:00 UTC1h 20m
2026-07-10 ENY3412 - Jul 10, 03:45 UTCJul 10, 04:45 UTC1h 0m
2026-07-10 ENY3890 - Jul 10, 00:30 UTCJul 10, 02:10 UTC1h 40m
2026-07-09 ENY3890 - Jul 9, 22:25 UTCJul 9, 23:20 UTC55m
2026-07-09 ENY3618 - Jul 9, 20:25 UTCJul 9, 21:25 UTC1h 0m
2026-07-09 ENY3618 - Jul 9, 18:45 UTCJul 9, 19:30 UTC45m
2026-07-09 ENY4097 - Jul 9, 16:40 UTCJul 9, 17:50 UTC1h 10m
2026-07-09 ENY4097 BTR → DFW Jul 9, 16:36 UTCJul 9, 17:36 UTC1h 0m
2026-07-09 ENY4097 DFW → BTR Jul 9, 14:40 UTCJul 9, 15:40 UTC1h 0m
2026-07-09 ENY4261 - Jul 9, 11:10 UTCJul 9, 13:15 UTC2h 5m
2026-07-09 ENY4260 - Jul 9, 00:50 UTCJul 9, 02:40 UTC1h 50m
2026-07-08 ENY3429 - Jul 8, 19:35 UTCJul 8, 21:55 UTC2h 20m
2026-07-08 ENY3429 - Jul 8, 16:15 UTCJul 8, 18:25 UTC2h 10m
2026-07-08 ENY4073 - Jul 8, 13:05 UTCJul 8, 14:40 UTC1h 35m
2026-07-08 ENY9866 - Jul 8, 11:55 UTCJul 8, 12:30 UTC35m
2026-07-07 ENY3409 - Jul 7, 21:35 UTCJul 7, 23:50 UTC2h 15m
2026-07-07 ENY3409 - Jul 7, 19:00 UTCJul 7, 20:40 UTC1h 40m
2026-07-07 ENY3439 BNA → ORD Jul 7, 15:55 UTCJul 7, 17:15 UTC1h 20m
2026-07-07 ENY3439 BNA → ORD Jul 7, 15:51 UTCJul 7, 17:05 UTC1h 14m
2026-07-07 ENY3439 - Jul 7, 13:45 UTCJul 7, 14:50 UTC1h 5m
2026-07-07 ENY3751 - Jul 7, 10:10 UTCJul 7, 12:00 UTC1h 50m
2026-07-07 ENY3752 - Jul 7, 02:15 UTCJul 7, 03:55 UTC1h 40m
2026-07-06 ENY4112 - Jul 6, 22:20 UTCJul 7, 00:10 UTC1h 50m
2026-07-06 ENY4112 - Jul 6, 19:15 UTCJul 6, 21:10 UTC1h 55m
2026-07-06 ENY3948 SBP → PHX Jul 6, 16:25 UTCJul 6, 17:40 UTC1h 15m
2026-07-06 ENY4101 DFW → XNA Jul 6, 01:15 UTCJul 6, 02:00 UTC45m
2026-07-06 ENY4101 DFW → XNA Jul 6, 01:10 UTCJul 6, 01:56 UTC46m

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 ENY4104, ENY3977, ENY4155, ENY3455, ENY4110.