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 1h ago
Flights observed
348
Distinct callsigns
20
Country
US
Last broadcast
1h ago

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 Envoy Air 8 2026-05-29
ENY4311 Envoy Air 6 2026-05-03
ENY3950 Envoy Air 6 2026-04-26
ENY3621 Envoy Air 6 2026-04-17
ENY3601 Envoy Air 6 2026-05-14
ENY3536 Envoy Air 6 2026-05-25
ENY3361 Envoy Air 6 2026-04-25
ENY4144 Envoy Air 5 2026-05-17
ENY4058 Envoy Air 5 2026-05-13
ENY3996 Envoy Air 5 2026-05-26
ENY3350 Envoy Air 5 2026-05-15
ENY4057 Envoy Air 4 2026-05-06
ENY4008 Envoy Air 4 2026-05-26
ENY4006 Envoy Air 4 2026-05-17
ENY3911 Envoy Air 4 2026-04-26
ENY3681 Envoy Air 4 2026-05-13
ENY3663 Envoy Air 4 2026-05-11
ENY3595 Envoy Air 4 2026-04-18
ENY3545 Envoy Air 4 2026-04-14
ENY3514 Envoy Air 4 2026-05-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 ENY3490 AVL → DFW May 29, 23:40 UTCMay 30, 00:15 UTC35m
2026-05-29 ENY3490 AVL → DFW May 29, 22:15 UTCMay 29, 22:55 UTC40m
2026-05-29 ENY3716 BOS → CMH May 29, 19:55 UTCMay 29, 20:45 UTC50m
2026-05-29 ENY3716 BOS → CMH May 29, 19:54 UTCMay 29, 20:20 UTC26m
2026-05-29 ENY3716 BOS → CMH May 29, 18:50 UTCMay 29, 19:20 UTC30m
2026-05-29 ENY4190 CLT → CMH May 29, 16:25 UTCMay 29, 17:10 UTC45m
2026-05-29 ENY4190 CLT → CMH May 29, 14:45 UTCMay 29, 15:15 UTC30m
2026-05-29 ENY3676 MIA → CVG May 29, 11:40 UTCMay 29, 13:10 UTC1h 30m
2026-05-29 ENY3610 YYZ → ORD May 29, 02:35 UTCMay 29, 03:50 UTC1h 15m
2026-05-28 ENY3750 ORD → FSD May 28, 22:40 UTCMay 28, 23:50 UTC1h 10m
2026-05-28 ENY3750 ORD → FSD May 28, 20:55 UTCMay 28, 21:55 UTC1h 0m
2026-05-28 ENY3553 ORD → ALB May 28, 19:00 UTCMay 28, 19:55 UTC55m
2026-05-28 ENY3553 ORD → ALB May 28, 17:45 UTCMay 28, 18:10 UTC25m
2026-05-28 ENY4174 CVG → ORD May 28, 15:45 UTCMay 28, 16:30 UTC45m
2026-05-28 ENY4174 CVG → ORD May 28, 14:00 UTCMay 28, 14:45 UTC45m
2026-05-28 ENY4279 DFW → MAF May 28, 11:15 UTCMay 28, 12:35 UTC1h 20m
2026-05-28 ENY4320 MIA → EIS May 28, 02:20 UTCMay 28, 03:30 UTC1h 10m
2026-05-27 ENY3477 DFW → MSN May 27, 23:50 UTCMay 28, 00:25 UTC35m
2026-05-27 ENY3477 DFW → MSN May 27, 22:30 UTCMay 27, 23:00 UTC30m
2026-05-27 ENY3596 CLE → ORD May 27, 20:05 UTCMay 27, 20:55 UTC50m
2026-05-27 ENY3596 CLE → ORD May 27, 20:03 UTCMay 27, 20:44 UTC41m
2026-05-27 ENY3596 CLE → ORD May 27, 18:35 UTCMay 27, 19:10 UTC35m
2026-05-27 ENY4240 ORD → ALB May 27, 14:55 UTCMay 27, 16:55 UTC2h 0m
2026-05-27 ENY4240 ORD → ALB May 27, 12:30 UTCMay 27, 13:55 UTC1h 25m
2026-05-27 ENY4322 ALO → ORD May 27, 10:05 UTCMay 27, 10:45 UTC40m
2026-05-27 ENY4321 ORD → ALO May 27, 03:59 UTCMay 27, 04:34 UTC35m
2026-05-26 ENY3996 CVG → MIA May 26, 21:04 UTCMay 26, 23:49 UTC2h 45m
2026-05-26 ENY3996 CVG → MIA May 26, 16:45 UTCMay 26, 19:25 UTC2h 40m
2026-05-26 ENY3973 TUL → ORD May 26, 14:14 UTCMay 26, 15:20 UTC1h 5m
2026-05-26 ENY3973 TUL → ORD May 26, 12:00 UTCMay 26, 13:04 UTC1h 5m
2026-05-26 ENY3531 DFW → MTY May 26, 06:14 UTCMay 26, 07:59 UTC1h 45m
2026-05-26 ENY4008 PHX → SMF May 26, 01:49 UTCMay 26, 02:39 UTC50m
2026-05-25 ENY4008 PHX → SMF May 25, 23:10 UTCMay 25, 23:45 UTC35m
2026-05-25 ENY3536 CMH → ORD May 25, 19:10 UTCMay 25, 19:44 UTC35m
2026-05-25 ENY3536 CMH → ORD May 25, 19:03 UTCMay 25, 19:39 UTC36m
2026-05-25 ENY3536 CMH → ORD May 25, 17:35 UTCMay 25, 18:00 UTC25m
2026-05-23 ENY9868 ORD → MKE May 23, 16:35 UTCMay 23, 18:00 UTC1h 25m
2026-05-23 ENY4282 STL → ORD May 23, 02:00 UTCMay 23, 03:10 UTC1h 10m
2026-05-23 ENY4282 STL → ORD May 23, 01:57 UTCMay 23, 03:09 UTC1h 12m
2026-05-22 ENY3365 CID → ORD May 22, 23:20 UTCMay 22, 23:50 UTC30m
2026-05-22 ENY3365 CID → ORD May 22, 23:11 UTCMay 22, 23:49 UTC38m
2026-05-22 ENY3365 CID → ORD May 22, 21:45 UTCMay 22, 22:05 UTC20m
2026-05-22 ENY4040 ORD → PIT May 22, 20:00 UTCMay 22, 20:25 UTC25m
2026-05-22 ENY4040 ORD → PIT May 22, 19:55 UTCMay 22, 20:25 UTC30m
2026-05-22 ENY4040 ORD → PIT May 22, 18:25 UTCMay 22, 18:45 UTC20m
2026-05-22 ENY3644 LRD → DFW May 22, 15:45 UTCMay 22, 16:55 UTC1h 10m
2026-05-22 ENY3644 DFW → LRD May 22, 13:55 UTCMay 22, 15:00 UTC1h 5m
2026-05-22 ENY3930 GRR → MIA May 22, 11:25 UTCMay 22, 12:10 UTC45m
2026-05-22 ENY3900 EWR → ORD May 22, 03:45 UTCMay 22, 04:20 UTC35m
2026-05-22 ENY3548 GPT → DFW May 22, 01:00 UTCMay 22, 01:35 UTC35m

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 1h ago.
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, ENY4311, ENY3950, ENY3621, ENY3601.