Apparatus

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sensors Mode-S transponder

A9F3AD

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N740MR · operated by WILMINGTON TRUST CO TRUSTEE

Hex
A9F3AD
Octal
52371655
Decimal
11,137,965
Country
US
Tail
N740MR
Type
E170
No current signal · last broadcast 53m ago
Flights observed
330
Distinct callsigns
20
Country
US
Last broadcast
53m ago

Last known position

Most recent position reported by Mode-S A9F3AD.

Country allocation

The ICAO 24-bit address A9F3AD 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
ENY3568 Envoy Air 9 2026-05-20
ENY3608 Envoy Air 8 2026-05-14
ENY4162 Envoy Air 7 2026-05-12
ENY3812 Envoy Air 7 2026-05-02
ENY3598 Envoy Air 7 2026-05-03
ENY4326 Envoy Air 6 2026-05-11
ENY4215 - 5 2026-04-15
ENY4151 Envoy Air 5 2026-04-23
ENY4120 Envoy Air 5 2026-05-11
ENY3966 Envoy Air 5 2026-05-21
ENY3894 Envoy Air 5 2026-05-19
ENY3778 Envoy Air 5 2026-04-30
ENY3663 Envoy Air 5 2026-05-17
ENY3442 Envoy Air 5 2026-05-16
ENY4094 Envoy Air 4 2026-05-29
ENY3838 Envoy Air 4 2026-05-10
ENY3800 Envoy Air 4 2026-05-13
ENY3690 Envoy Air 4 2026-05-19
ENY3625 Envoy Air 4 2026-05-15
ENY3563 Envoy Air 4 2026-05-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 ENY3600 CMH → CLT May 30, 13:35 UTCMay 30, 15:15 UTC1h 40m
2026-05-30 ENY3760 DFW → CMH May 30, 10:55 UTCMay 30, 12:05 UTC1h 10m
2026-05-30 ENY3760 DFW → CMH May 30, 10:54 UTCMay 30, 12:00 UTC1h 6m
2026-05-30 ENY3789 ORD → EWR May 30, 02:55 UTCMay 30, 03:45 UTC50m
2026-05-29 ENY3750 ORD → FSD May 29, 22:35 UTCMay 29, 23:45 UTC1h 10m
2026-05-29 ENY3750 ORD → FSD May 29, 20:35 UTCMay 29, 21:30 UTC55m
2026-05-29 ENY3684 DFW → BHM May 29, 17:30 UTCMay 29, 19:05 UTC1h 35m
2026-05-29 ENY3684 DFW → BHM May 29, 14:50 UTCMay 29, 16:10 UTC1h 20m
2026-05-29 ENY4094 CVG → ORD May 29, 12:35 UTCMay 29, 13:30 UTC55m
2026-05-29 ENY3674 DEN → ORD May 29, 00:10 UTCMay 29, 00:55 UTC45m
2026-05-28 ENY3715 ORD → PVD May 28, 22:00 UTCMay 28, 22:45 UTC45m
2026-05-28 ENY4117 BOS → ORD May 28, 20:25 UTCMay 28, 20:50 UTC25m
2026-05-28 ENY3600 CMH → CLT May 28, 16:35 UTCMay 28, 18:20 UTC1h 45m
2026-05-28 ENY3600 CMH → CLT May 28, 13:30 UTCMay 28, 15:20 UTC1h 50m
2026-05-28 ENY4328 DFW → SAT May 28, 11:05 UTCMay 28, 11:40 UTC35m
2026-05-28 ENY4331 MHH → CLT May 28, 03:50 UTCMay 28, 04:20 UTC30m
2026-05-28 ENY4331 MHH → CLT May 28, 03:45 UTCMay 28, 04:19 UTC34m
2026-05-28 ENY4102 TUL → PHX May 28, 01:20 UTCMay 28, 02:35 UTC1h 15m
2026-05-27 ENY4102 TUL → PHX May 27, 23:20 UTCMay 28, 00:15 UTC55m
2026-05-27 ENY4077 DFW → CRP May 27, 21:05 UTCMay 27, 21:45 UTC40m
2026-05-27 ENY4077 DFW → CRP May 27, 19:30 UTCMay 27, 20:05 UTC35m
2026-05-27 ENY3437 FSD → ORD May 27, 17:25 UTCMay 27, 18:00 UTC35m
2026-05-27 ENY3437 FSD → ORD May 27, 17:25 UTCMay 27, 17:53 UTC28m
2026-05-27 ENY3437 FSD → ORD May 27, 15:50 UTCMay 27, 16:25 UTC35m
2026-05-27 ENY4018 ORD → BHM May 27, 13:35 UTCMay 27, 14:10 UTC35m
2026-05-27 ENY4018 ORD → BHM May 27, 12:00 UTCMay 27, 12:25 UTC25m
2026-05-27 ENY3909 TYS → ORD May 27, 09:45 UTCMay 27, 10:20 UTC35m
2026-05-27 ENY3910 CVG → ORD May 27, 02:44 UTCMay 27, 03:14 UTC30m
2026-05-26 ENY3410 ORD → MSN May 26, 23:49 UTCMay 27, 00:44 UTC55m
2026-05-26 ENY3410 ORD → MSN May 26, 22:20 UTCMay 26, 22:54 UTC35m
2026-05-26 ENY3815 CLT → BHM May 26, 19:40 UTCMay 26, 20:29 UTC50m
2026-05-26 ENY3815 CLT → BHM May 26, 19:38 UTCMay 26, 20:22 UTC44m
2026-05-26 ENY3815 CLT → BHM May 26, 17:55 UTCMay 26, 18:40 UTC45m
2026-05-26 ENY3446 CMH → ORD May 26, 14:45 UTCMay 26, 16:15 UTC1h 30m
2026-05-26 ENY3446 CMH → ORD May 26, 14:41 UTCMay 26, 16:22 UTC1h 41m
2026-05-26 ENY3446 CMH → ORD May 26, 12:05 UTCMay 26, 13:29 UTC1h 25m
2026-05-26 ENY3509 DFW → XNA May 26, 10:05 UTCMay 26, 10:34 UTC30m
2026-05-26 ENY3809 ORD → BMI May 26, 04:20 UTCMay 26, 04:39 UTC20m
2026-05-26 ENY3809 ORD → BMI May 26, 04:16 UTCMay 26, 04:38 UTC22m
2026-05-26 ENY9865 ORD → TYS May 26, 01:34 UTCMay 26, 02:44 UTC1h 10m
2026-05-24 ENY3881 IND → ORD May 24, 00:50 UTCMay 24, 01:25 UTC35m
2026-05-23 ENY4218 DFW → MSY May 23, 17:45 UTCMay 23, 18:50 UTC1h 5m
2026-05-23 ENY4218 DFW → MSY May 23, 14:50 UTCMay 23, 16:00 UTC1h 10m
2026-05-23 ENY4218 DFW → MSY May 23, 14:50 UTCMay 23, 16:16 UTC1h 26m
2026-05-23 ENY4169 MIA → MSY May 23, 11:30 UTCMay 23, 12:50 UTC1h 20m
2026-05-23 ENY4283 MDT → MIA May 23, 03:25 UTCMay 23, 04:50 UTC1h 25m
2026-05-22 ENY3530 RNO → AUS May 22, 22:35 UTCMay 22, 23:15 UTC40m
2026-05-22 ENY3530 RNO → AUS May 22, 22:30 UTCMay 22, 23:35 UTC1h 5m
2026-05-22 ENY3530 RNO → AUS May 22, 20:55 UTCMay 22, 21:30 UTC35m
2026-05-22 ENY3958 ORD → BMI May 22, 17:55 UTCMay 22, 19:45 UTC1h 50m

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 N740MR page for operator, model, and routing details .

Mode-S A9F3AD frequently asked

What is Mode-S code A9F3AD?
A9F3AD is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N740MR.
Where is Mode-S A9F3AD registered?
Mode-S code A9F3AD 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 A9F3AD broadcasting right now?
No active broadcast right now. Last signal was 53m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A9F3AD, octal 52371655, decimal 11,137,965.
What flights does A9F3AD operate?
Mode-S A9F3AD has broadcast 20 distinct callsigns, including ENY3568, ENY3608, ENY4162, ENY3812, ENY3598.