Apparatus

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sensors Mode-S transponder

AAC7B1

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N794JH · operated by AMERICAN AIRLINES INC

Hex
AAC7B1
Octal
52543661
Decimal
11,192,241
Country
US
Tail
N794JH
Type
E170
No current signal · last broadcast Jul 26, 21:35 UTC
Flights observed
806
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:35 UTC

Last known position

Most recent position reported by Mode-S AAC7B1.

Country allocation

The ICAO 24-bit address AAC7B1 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
ENY3716 - 13 2026-07-11
ENY4326 - 12 2026-06-21
ENY4174 - 12 2026-07-18
ENY3775 - 11 2026-07-16
ENY3600 - 11 2026-06-18
ENY4044 - 10 2026-07-12
ENY3410 - 10 2026-07-19
ENY3800 Envoy Air 9 2026-07-25
ENY3698 - 9 2026-07-10
ENY3626 Envoy Air 9 2026-06-10
ENY3681 - 8 2026-07-20
ENY3649 - 8 2026-07-20
ENY3612 Envoy Air 8 2026-06-27
ENY3437 Envoy Air 8 2026-07-22
ENY4200 - 7 2026-07-12
ENY4144 Envoy Air 7 2026-06-15
ENY4062 - 7 2026-07-12
ENY3738 - 7 2026-06-22
ENY3696 Envoy Air 7 2026-07-20
ENY3447 - 7 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ENY3712 CVG → ORD Jul 26, 20:40 UTCJul 26, 21:35 UTC55m
2026-07-26 ENY3712 CVG → ORD Jul 26, 18:40 UTCJul 26, 19:20 UTC40m
2026-07-26 ENY3480 MSY → AUS Jul 26, 15:50 UTCJul 26, 16:50 UTC1h 0m
2026-07-26 ENY3480 MSY → AUS Jul 26, 13:45 UTCJul 26, 14:30 UTC45m
2026-07-26 ENY4272 ORD → AUS Jul 26, 10:15 UTCJul 26, 11:55 UTC1h 40m
2026-07-26 ENY4271 EYW → DCA Jul 26, 01:45 UTCJul 26, 03:10 UTC1h 25m
2026-07-25 ENY3767 AGU → DFW Jul 25, 22:30 UTCJul 26, 00:10 UTC1h 40m
2026-07-25 ENY3767 AGU → DFW Jul 25, 18:30 UTCJul 25, 20:10 UTC1h 40m
2026-07-25 ENY3800 GSO → DCA Jul 25, 16:00 UTCJul 25, 17:20 UTC1h 20m
2026-07-25 ENY3800 GSO → DCA Jul 25, 15:56 UTCJul 25, 17:07 UTC1h 11m
2026-07-25 ENY3800 GSO → DCA Jul 25, 14:00 UTCJul 25, 15:00 UTC1h 0m
2026-07-25 ENY4293 SGF → ORD Jul 25, 10:20 UTCJul 25, 12:00 UTC1h 40m
2026-07-25 ENY4293 SGF → ORD Jul 25, 10:16 UTCJul 25, 11:53 UTC1h 37m
2026-07-25 ENY4275 CLT → PNS Jul 25, 01:35 UTCJul 25, 03:00 UTC1h 25m
2026-07-24 ENY4151 AVL → DFW Jul 24, 22:05 UTCJul 24, 22:15 UTC10m
2026-07-24 ENY4151 AVL → DFW Jul 24, 21:55 UTCJul 24, 23:16 UTC1h 21m
2026-07-24 ENY4151 AVL → DFW Jul 24, 19:55 UTCJul 24, 20:55 UTC1h 0m
2026-07-24 ENY3739 DCA → CMH Jul 24, 17:00 UTCJul 24, 18:15 UTC1h 15m
2026-07-24 ENY3739 DCA → CMH Jul 24, 15:05 UTCJul 24, 16:10 UTC1h 5m
2026-07-24 ENY4181 DFW → GRR Jul 24, 11:45 UTCJul 24, 13:20 UTC1h 35m
2026-07-24 ENY3757 CMI → ORD Jul 24, 03:20 UTCJul 24, 04:35 UTC1h 15m
2026-07-24 ENY3383 MFE → DFW Jul 24, 00:40 UTCJul 24, 01:50 UTC1h 10m
2026-07-23 ENY3383 MFE → DFW Jul 23, 22:40 UTCJul 23, 23:40 UTC1h 0m
2026-07-23 ENY3848 LEX → ORD Jul 23, 19:25 UTCJul 23, 20:45 UTC1h 20m
2026-07-23 ENY3848 LEX → ORD Jul 23, 19:20 UTCJul 23, 20:40 UTC1h 20m
2026-07-23 ENY3848 LEX → ORD Jul 23, 16:55 UTCJul 23, 18:10 UTC1h 15m
2026-07-23 ENY4103 - Jul 23, 14:35 UTCJul 23, 15:15 UTC40m
2026-07-23 ENY4103 DTW → ORD Jul 23, 14:30 UTCJul 23, 15:14 UTC44m
2026-07-23 ENY4103 - Jul 23, 12:35 UTCJul 23, 13:25 UTC50m
2026-07-23 ENY4094 CVG → ORD Jul 23, 10:10 UTCJul 23, 11:10 UTC1h 0m
2026-07-23 ENY4094 CVG → ORD Jul 23, 10:09 UTCJul 23, 11:08 UTC59m
2026-07-23 ENY3674 - Jul 23, 00:10 UTCJul 23, 00:55 UTC45m
2026-07-22 ENY3715 ORD → PVD Jul 22, 21:40 UTCJul 22, 22:15 UTC35m
2026-07-22 ENY3715 ORD → PVD Jul 22, 21:39 UTCJul 22, 22:11 UTC32m
2026-07-22 ENY4117 - Jul 22, 20:30 UTCJul 22, 20:55 UTC25m
2026-07-22 ENY3437 FSD → ORD Jul 22, 18:15 UTCJul 22, 18:55 UTC40m
2026-07-22 ENY3437 FSD → ORD Jul 22, 16:35 UTCJul 22, 17:05 UTC30m
2026-07-22 ENY3489 - Jul 22, 14:15 UTCJul 22, 15:20 UTC1h 5m
2026-07-22 ENY3489 - Jul 22, 12:30 UTCJul 22, 13:15 UTC45m
2026-07-22 ENY3765 ORD → ROC Jul 22, 09:46 UTCJul 22, 10:38 UTC52m
2026-07-22 ENY3753 - Jul 22, 03:45 UTCJul 22, 04:20 UTC35m
2026-07-21 ENY3407 ABI → DFW Jul 21, 23:25 UTCJul 22, 01:30 UTC2h 5m
2026-07-21 ENY3407 ABI → DFW Jul 21, 21:15 UTCJul 21, 22:30 UTC1h 15m
2026-07-20 ENY3696 MEM → ORD Jul 20, 22:55 UTCJul 21, 00:45 UTC1h 49m
2026-07-20 ENY3696 MEM → ORD Jul 20, 22:51 UTCJul 21, 00:44 UTC1h 53m
2026-07-20 ENY3696 MEM → ORD Jul 20, 19:40 UTCJul 20, 21:10 UTC1h 30m
2026-07-20 ENY3649 - Jul 20, 17:20 UTCJul 20, 18:15 UTC55m
2026-07-20 ENY3649 - Jul 20, 15:15 UTCJul 20, 16:00 UTC45m
2026-07-20 ENY3681 - Jul 20, 12:10 UTCJul 20, 13:25 UTC1h 15m
2026-07-20 ENY3873 MSY → MIA Jul 20, 03:15 UTCJul 20, 04:20 UTC1h 5m

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 N794JH page for operator, model, and routing details .

Mode-S AAC7B1 frequently asked

What is Mode-S code AAC7B1?
AAC7B1 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N794JH.
Where is Mode-S AAC7B1 registered?
Mode-S code AAC7B1 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 AAC7B1 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AAC7B1, octal 52543661, decimal 11,192,241.
What flights does AAC7B1 operate?
Mode-S AAC7B1 has broadcast 20 distinct callsigns, including ENY3716, ENY4326, ENY4174, ENY3775, ENY3600.