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sensors Mode-S transponder

AAAA11

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N7866Y · PIPER PA-30 Twin Comanche · operated by HENRIE AVIATION LLC

Hex
AAAA11
Octal
52525021
Decimal
11,184,657
Country
US
Tail
N7866Y
Type
PA30
No current signal · last broadcast 15h ago
Flights observed
71
Distinct callsigns
1
Country
US
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S AAAA11.

Country allocation

The ICAO 24-bit address AAAA11 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 1 distinct

Callsign Airline Flights Last seen
N7866Y - 71 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-20 N7866Y - Jul 20, 20:55 UTCJul 20, 21:50 UTC55m
2026-07-20 N7866Y - Jul 20, 18:45 UTCJul 20, 19:50 UTC1h 5m
2026-07-20 N7866Y - Jul 20, 16:05 UTCJul 20, 17:05 UTC1h 0m
2026-07-19 N7866Y CDW → CDW Jul 19, 12:55 UTCJul 19, 13:55 UTC1h 0m
2026-07-04 N7866Y - Jul 4, 15:00 UTCJul 4, 16:00 UTC1h 0m
2026-07-04 N7866Y - Jul 4, 13:00 UTCJul 4, 14:00 UTC1h 0m
2026-07-03 N7866Y - Jul 3, 14:25 UTCJul 3, 15:35 UTC1h 10m
2026-07-02 N7866Y - Jul 2, 11:40 UTCJul 2, 12:50 UTC1h 10m
2026-07-01 N7866Y - Jul 1, 15:05 UTCJul 1, 16:05 UTC1h 0m
2026-06-29 N7866Y - Jun 29, 22:00 UTCJun 29, 23:05 UTC1h 5m
2026-06-29 N7866Y - Jun 29, 13:00 UTCJun 29, 13:44 UTC45m
2026-06-28 N7866Y - Jun 28, 18:59 UTCJun 28, 20:04 UTC1h 5m
2026-06-25 N7866Y - Jun 25, 22:59 UTCJun 25, 23:55 UTC55m
2026-06-25 N7866Y - Jun 25, 14:50 UTCJun 25, 15:40 UTC50m
2026-06-25 N7866Y CDW → CDW Jun 25, 12:50 UTCJun 25, 13:45 UTC55m
2026-06-22 N7866Y - Jun 22, 15:45 UTCJun 22, 16:20 UTC35m
2026-06-22 N7866Y - Jun 22, 14:59 UTCJun 22, 15:10 UTC10m
2026-06-22 N7866Y - Jun 22, 12:44 UTCJun 22, 13:39 UTC55m
2026-06-21 N7866Y - Jun 21, 18:50 UTCJun 21, 19:45 UTC55m
2026-06-21 N7866Y - Jun 21, 14:59 UTCJun 21, 15:54 UTC55m
2026-06-19 N7866Y - Jun 19, 16:09 UTCJun 19, 16:59 UTC50m
2026-06-19 N7866Y - Jun 19, 14:04 UTCJun 19, 14:59 UTC55m
2026-06-17 N7866Y - Jun 17, 19:05 UTCJun 17, 19:40 UTC35m
2026-06-17 N7866Y - Jun 17, 14:40 UTCJun 17, 15:25 UTC45m
2026-06-16 N7866Y - Jun 16, 21:05 UTCJun 16, 21:55 UTC50m
2026-06-16 N7866Y - Jun 16, 13:00 UTCJun 16, 13:50 UTC50m
2026-06-15 N7866Y - Jun 15, 12:45 UTCJun 15, 13:25 UTC40m
2026-06-14 N7866Y - Jun 14, 13:10 UTCJun 14, 13:55 UTC45m
2026-06-12 N7866Y - Jun 12, 14:10 UTCJun 12, 14:55 UTC45m
2026-06-11 N7866Y - Jun 11, 14:50 UTCJun 11, 15:25 UTC35m
2026-06-10 N7866Y - Jun 10, 17:05 UTCJun 10, 17:45 UTC40m
2026-06-10 N7866Y - Jun 10, 13:10 UTCJun 10, 13:55 UTC45m
2026-06-09 N7866Y CDW → CDW Jun 9, 16:55 UTCJun 9, 19:05 UTC2h 10m
2026-06-08 N7866Y - Jun 8, 21:05 UTCJun 8, 22:50 UTC1h 45m
2026-06-08 N7866Y - Jun 8, 17:05 UTCJun 8, 17:50 UTC45m
2026-06-08 N7866Y - Jun 8, 12:55 UTCJun 8, 13:50 UTC55m
2026-06-03 N7866Y - Jun 3, 18:45 UTCJun 3, 19:50 UTC1h 5m
2026-05-29 N7866Y - May 29, 15:30 UTCMay 29, 16:00 UTC30m
2026-05-29 N7866Y - May 29, 14:30 UTCMay 29, 14:50 UTC20m
2026-05-28 N7866Y - May 28, 13:05 UTCMay 28, 14:00 UTC55m
2026-05-27 N7866Y - May 27, 19:00 UTCMay 27, 19:55 UTC55m
2026-05-27 N7866Y - May 27, 16:50 UTCMay 27, 17:50 UTC1h 0m
2026-05-15 N7866Y - May 15, 14:45 UTCMay 15, 15:10 UTC24m
2026-05-15 N7866Y - May 15, 12:40 UTCMay 15, 13:25 UTC45m
2026-05-13 N7866Y - May 13, 14:35 UTCMay 13, 15:25 UTC50m
2026-05-13 N7866Y CDW → CDW May 13, 12:45 UTCMay 13, 13:40 UTC55m
2026-05-12 N7866Y - May 12, 14:45 UTCMay 12, 15:40 UTC55m
2026-05-11 N7866Y - May 11, 13:00 UTCMay 11, 13:40 UTC40m
2026-05-09 N7866Y - May 9, 12:00 UTCMay 9, 12:20 UTC20m
2026-05-09 N7866Y - May 9, 11:00 UTCMay 9, 11:20 UTC20m

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 N7866Y page for operator, model, and routing details .

Mode-S AAAA11 frequently asked

What is Mode-S code AAAA11?
AAAA11 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N7866Y.
Where is Mode-S AAAA11 registered?
Mode-S code AAAA11 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 AAAA11 broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AAAA11, octal 52525021, decimal 11,184,657.
What flights does AAAA11 operate?
Mode-S AAAA11 has broadcast 1 distinct callsign, including N7866Y.