Apparatus

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sensors Mode-S transponder

AA9FBB

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N784DP · operated by WILMINGTON TRUST CO TRUSTEE

Hex
AA9FBB
Octal
52517673
Decimal
11,182,011
Country
US
Tail
N784DP
Type
E170
No current signal · last broadcast Jul 26, 21:20 UTC
Flights observed
846
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:20 UTC

Last known position

Most recent position reported by Mode-S AA9FBB.

Country allocation

The ICAO 24-bit address AA9FBB 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
ENY3827 Envoy Air 13 2026-07-23
ENY3475 - 13 2026-07-02
ENY3739 Envoy Air 12 2026-07-25
ENY3556 - 11 2026-07-10
ENY3442 Envoy Air 10 2026-05-20
ENY3612 Envoy Air 9 2026-07-20
ENY3529 Envoy Air 9 2026-05-20
ENY3446 Envoy Air 9 2026-06-07
ENY3800 - 8 2026-07-04
ENY3775 Envoy Air 8 2026-05-25
ENY3663 Envoy Air 8 2026-05-12
ENY3543 Envoy Air 8 2026-07-26
ENY3407 - 8 2026-07-03
ENY3973 - 7 2026-07-09
ENY3696 - 7 2026-07-19
ENY3625 Envoy Air 7 2026-05-27
ENY3592 - 7 2026-07-01
ENY3536 - 7 2026-07-07
ENY3402 - 7 2026-06-29
ENY3399 Envoy Air 7 2026-05-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ENY3543 CMI → ORD Jul 26, 20:35 UTCJul 26, 21:20 UTC45m
2026-07-26 ENY3543 CMI → ORD Jul 26, 19:00 UTCJul 26, 19:40 UTC40m
2026-07-26 ENY3786 DFW → GJT Jul 26, 16:40 UTCJul 26, 17:30 UTC50m
2026-07-26 ENY3786 DFW → GJT Jul 26, 15:15 UTCJul 26, 16:00 UTC45m
2026-07-26 ENY3656 LIT → ORD Jul 26, 11:45 UTCJul 26, 13:10 UTC1h 25m
2026-07-26 ENY3561 ORD → LIT Jul 26, 01:05 UTCJul 26, 02:10 UTC1h 5m
2026-07-26 ENY3561 ORD → LIT Jul 26, 01:03 UTCJul 26, 02:14 UTC1h 11m
2026-07-25 ENY4000 ORD → ILM Jul 25, 22:35 UTCJul 25, 23:40 UTC1h 5m
2026-07-25 ENY4000 ORD → ILM Jul 25, 22:32 UTCJul 25, 23:32 UTC1h 0m
2026-07-25 ENY4000 ORD → ILM Jul 25, 20:30 UTCJul 25, 21:30 UTC1h 0m
2026-07-25 ENY3739 DCA → CMH Jul 25, 17:10 UTCJul 25, 18:20 UTC1h 10m
2026-07-25 ENY3739 DCA → CMH Jul 25, 17:05 UTCJul 25, 18:14 UTC1h 9m
2026-07-25 ENY3739 DCA → CMH Jul 25, 15:05 UTCJul 25, 16:05 UTC1h 0m
2026-07-25 ENY3656 LIT → ORD Jul 25, 11:50 UTCJul 25, 13:15 UTC1h 25m
2026-07-25 ENY3656 LIT → ORD Jul 25, 11:41 UTCJul 25, 13:11 UTC1h 30m
2026-07-25 ENY3561 ORD → LIT Jul 25, 01:50 UTCJul 25, 03:00 UTC1h 10m
2026-07-25 ENY3972 BOS → ORD Jul 25, 00:00 UTCJul 25, 00:35 UTC35m
2026-07-24 ENY3972 BOS → ORD Jul 24, 22:55 UTCJul 24, 23:20 UTC25m
2026-07-24 ENY4103 - Jul 24, 14:50 UTCJul 24, 15:40 UTC50m
2026-07-24 ENY4103 ORD → DTW Jul 24, 13:00 UTCJul 24, 13:45 UTC45m
2026-07-24 ENY3763 BNA → ORD Jul 24, 10:10 UTCJul 24, 10:50 UTC40m
2026-07-24 ENY3790 BDL → ORD Jul 24, 04:15 UTCJul 24, 04:45 UTC30m
2026-07-24 ENY3626 ORD → SGF Jul 24, 01:05 UTCJul 24, 02:15 UTC1h 10m
2026-07-24 ENY3626 ORD → SGF Jul 24, 01:04 UTCJul 24, 02:12 UTC1h 8m
2026-07-23 ENY3626 ORD → SGF Jul 23, 22:50 UTCJul 23, 23:55 UTC1h 5m
2026-07-23 ENY3543 CMI → ORD Jul 23, 20:30 UTCJul 23, 21:10 UTC40m
2026-07-23 ENY3543 CMI → ORD Jul 23, 20:28 UTCJul 23, 21:09 UTC41m
2026-07-23 ENY3543 CMI → ORD Jul 23, 19:00 UTCJul 23, 19:35 UTC35m
2026-07-23 ENY3786 DFW → GJT Jul 23, 16:45 UTCJul 23, 17:30 UTC45m
2026-07-23 ENY3786 DFW → GJT Jul 23, 15:00 UTCJul 23, 15:45 UTC45m
2026-07-23 ENY3758 MEM → ORD Jul 23, 11:40 UTCJul 23, 13:00 UTC1h 20m
2026-07-23 ENY3945 ORD → MEM Jul 23, 04:25 UTCJul 23, 05:40 UTC1h 15m
2026-07-23 ENY3827 BOS → ORD Jul 23, 00:55 UTCJul 23, 02:20 UTC1h 25m
2026-07-23 ENY3827 BOS → ORD Jul 23, 00:51 UTCJul 23, 02:16 UTC1h 25m
2026-07-22 ENY3827 BOS → ORD Jul 22, 22:25 UTCJul 22, 23:50 UTC1h 25m
2026-07-22 ENY3472 - Jul 22, 11:10 UTCJul 22, 11:40 UTC30m
2026-07-22 ENY3769 ORD → PVD Jul 22, 04:30 UTCJul 22, 05:15 UTC45m
2026-07-22 ENY3769 ORD → PVD Jul 22, 04:29 UTCJul 22, 05:11 UTC42m
2026-07-22 ENY3827 BOS → ORD Jul 22, 01:25 UTCJul 22, 02:45 UTC1h 20m
2026-07-22 ENY3827 BOS → ORD Jul 22, 01:22 UTCJul 22, 02:44 UTC1h 22m
2026-07-21 ENY3827 BOS → ORD Jul 21, 22:50 UTCJul 22, 00:15 UTC1h 25m
2026-07-21 ENY3543 CMI → ORD Jul 21, 20:50 UTCJul 21, 21:35 UTC45m
2026-07-21 ENY3543 CMI → ORD Jul 21, 20:46 UTCJul 21, 21:24 UTC38m
2026-07-21 ENY3543 CMI → ORD Jul 21, 19:30 UTCJul 21, 20:10 UTC40m
2026-07-21 ENY3739 DCA → CMH Jul 21, 17:00 UTCJul 21, 18:10 UTC1h 10m
2026-07-21 ENY3739 DCA → CMH Jul 21, 14:55 UTCJul 21, 16:00 UTC1h 5m
2026-07-21 ENY4181 DFW → GRR Jul 21, 11:40 UTCJul 21, 13:25 UTC1h 45m
2026-07-21 ENY4181 DFW → GRR Jul 21, 11:36 UTCJul 21, 13:15 UTC1h 39m
2026-07-21 ENY3757 CMI → ORD Jul 21, 03:05 UTCJul 21, 04:20 UTC1h 15m
2026-07-21 ENY3740 AUS → ABQ Jul 21, 00:25 UTCJul 21, 01:10 UTC45m

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 N784DP page for operator, model, and routing details .

Mode-S AA9FBB frequently asked

What is Mode-S code AA9FBB?
AA9FBB is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N784DP.
Where is Mode-S AA9FBB registered?
Mode-S code AA9FBB 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 AA9FBB broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA9FBB, octal 52517673, decimal 11,182,011.
What flights does AA9FBB operate?
Mode-S AA9FBB has broadcast 20 distinct callsigns, including ENY3827, ENY3475, ENY3739, ENY3556, ENY3442.