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 Jul 26, 21:00 UTC
Flights observed
788
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:00 UTC

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
ENY3608 - 12 2026-07-01
ENY3698 Envoy Air 11 2026-07-25
ENY3491 Envoy Air 11 2026-07-26
ENY4151 - 10 2026-07-08
ENY3812 Envoy Air 10 2026-06-07
ENY3802 Envoy Air 10 2026-07-26
ENY3800 - 10 2026-07-09
ENY3625 - 10 2026-06-26
ENY4162 - 9 2026-07-03
ENY3741 - 9 2026-07-01
ENY3568 Envoy Air 9 2026-05-20
ENY3477 Envoy Air 9 2026-06-18
ENY4326 Envoy Air 8 2026-06-01
ENY4094 - 8 2026-06-27
ENY3767 - 8 2026-07-09
ENY3476 Envoy Air 8 2026-07-04
ENY3446 - 8 2026-07-12
ENY3437 - 8 2026-07-11
ENY4330 - 7 2026-07-04
ENY4328 Envoy Air 7 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ENY3802 BOS → ILM Jul 26, 19:40 UTCJul 26, 20:50 UTC1h 10m
2026-07-26 ENY3802 BOS → ILM Jul 26, 17:30 UTCJul 26, 18:25 UTC55m
2026-07-26 ENY3491 CLT → MSN Jul 26, 15:00 UTCJul 26, 15:45 UTC45m
2026-07-26 ENY3491 CLT → MSN Jul 26, 14:58 UTCJul 26, 15:48 UTC50m
2026-07-26 ENY3491 CLT → MSN Jul 26, 13:15 UTCJul 26, 14:05 UTC50m
2026-07-26 ENY4041 ROC → DCA Jul 26, 10:55 UTCJul 26, 11:45 UTC50m
2026-07-26 ENY3447 ORD → CMH Jul 26, 00:45 UTCJul 26, 01:35 UTC50m
2026-07-26 ENY3447 ORD → CMH Jul 26, 00:40 UTCJul 26, 01:32 UTC52m
2026-07-25 ENY3785 DCA → RSW Jul 25, 21:30 UTCJul 25, 23:10 UTC1h 40m
2026-07-25 ENY3785 DCA → RSW Jul 25, 18:40 UTCJul 25, 20:05 UTC1h 25m
2026-07-25 ENY3698 PHX → SJC Jul 25, 16:45 UTCJul 25, 17:20 UTC35m
2026-07-25 ENY3698 PHX → SJC Jul 25, 15:20 UTCJul 25, 15:35 UTC15m
2026-07-25 ENY4181 DFW → GRR Jul 25, 11:45 UTCJul 25, 13:30 UTC1h 45m
2026-07-25 ENY4181 DFW → GRR Jul 25, 11:41 UTCJul 25, 13:27 UTC1h 46m
2026-07-25 ENY3757 CMI → ORD Jul 25, 02:55 UTCJul 25, 04:10 UTC1h 15m
2026-07-25 ENY3757 CMI → ORD Jul 25, 02:50 UTCJul 25, 04:04 UTC1h 14m
2026-07-25 ENY3511 DCA → DSM Jul 25, 00:25 UTCJul 25, 01:20 UTC55m
2026-07-25 ENY3511 DCA → DSM Jul 25, 00:19 UTCJul 25, 01:15 UTC56m
2026-07-24 ENY3511 DCA → DSM Jul 24, 22:40 UTCJul 24, 23:15 UTC35m
2026-07-24 ENY3802 BOS → ILM Jul 24, 19:25 UTCJul 24, 20:35 UTC1h 10m
2026-07-24 ENY3802 BOS → ILM Jul 24, 17:25 UTCJul 24, 18:35 UTC1h 10m
2026-07-24 ENY3546 ORD → MCI Jul 24, 14:55 UTCJul 24, 15:40 UTC45m
2026-07-24 ENY3546 ORD → MCI Jul 24, 13:20 UTCJul 24, 14:00 UTC40m
2026-07-24 ENY4328 DFW → SAT Jul 24, 11:00 UTCJul 24, 11:40 UTC40m
2026-07-24 ENY4331 MHH → CLT Jul 24, 04:15 UTCJul 24, 04:50 UTC35m
2026-07-24 ENY3531 DFW → MTY Jul 24, 00:40 UTCJul 24, 02:35 UTC1h 55m
2026-07-23 ENY3530 RNO → AUS Jul 23, 22:30 UTCJul 23, 23:10 UTC40m
2026-07-23 ENY3530 RNO → AUS Jul 23, 20:45 UTCJul 23, 21:20 UTC35m
2026-07-23 ENY3958 ORD → BMI Jul 23, 17:41 UTCJul 23, 19:15 UTC1h 34m
2026-07-23 ENY3958 ORD → BMI Jul 23, 15:20 UTCJul 23, 16:35 UTC1h 15m
2026-07-23 ENY3525 DFW → GRR Jul 23, 12:10 UTCJul 23, 13:20 UTC1h 10m
2026-07-23 ENY4282 STL → ORD Jul 23, 02:00 UTCJul 23, 02:55 UTC55m
2026-07-23 ENY4282 STL → ORD Jul 23, 01:56 UTCJul 23, 03:06 UTC1h 10m
2026-07-22 ENY3365 CID → ORD Jul 22, 23:35 UTCJul 23, 00:10 UTC35m
2026-07-22 ENY3365 CID → ORD Jul 22, 23:30 UTCJul 23, 00:04 UTC34m
2026-07-22 ENY3365 CID → ORD Jul 22, 22:00 UTCJul 22, 22:15 UTC15m
2026-07-22 ENY3592 CMH → DFW Jul 22, 19:40 UTCJul 22, 20:40 UTC1h 0m
2026-07-22 ENY3592 CMH → DFW Jul 22, 17:55 UTCJul 22, 18:45 UTC50m
2026-07-22 ENY3573 - Jul 22, 14:55 UTCJul 22, 15:45 UTC50m
2026-07-22 ENY3573 HOU → DFW Jul 22, 14:54 UTCJul 22, 15:39 UTC45m
2026-07-22 ENY3573 - Jul 22, 13:20 UTCJul 22, 14:10 UTC50m
2026-07-22 ENY3725 - Jul 22, 11:20 UTCJul 22, 11:55 UTC35m
2026-07-22 ENY3724 MIA → MSY Jul 22, 03:10 UTCJul 22, 03:50 UTC40m
2026-07-22 ENY3724 MIA → MSY Jul 22, 03:09 UTCJul 22, 03:55 UTC46m
2026-07-21 ENY3504 XNA → DFW Jul 21, 23:50 UTCJul 22, 01:20 UTC1h 30m
2026-07-21 ENY3504 XNA → DFW Jul 21, 21:35 UTCJul 21, 23:05 UTC1h 30m
2026-07-21 ENY4040 ORD → PIT Jul 21, 20:15 UTCJul 21, 20:40 UTC25m
2026-07-21 ENY4040 ORD → PIT Jul 21, 20:08 UTCJul 21, 20:36 UTC28m
2026-07-21 ENY4040 ORD → PIT Jul 21, 18:25 UTCJul 21, 18:45 UTC20m
2026-07-21 ENY3644 DFW → MLI Jul 21, 15:45 UTCJul 21, 16:55 UTC1h 10m

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 Jul 26, 21:00 UTC.
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 ENY3608, ENY3698, ENY3491, ENY4151, ENY3812.