Apparatus

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sensors Mode-S transponder

A11CE7

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N171AC · operated by PIERRE-EMMANUEL DE TAILLY

Hex
A11CE7
Octal
50216347
Decimal
10,558,695
Country
US
Tail
N171AC
Type
S64
No current signal · last broadcast 21h ago
Flights observed
55
Distinct callsigns
1
Country
US
Last broadcast
21h ago

Last known position

Most recent position reported by Mode-S A11CE7.

Country allocation

The ICAO 24-bit address A11CE7 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
ICFAN - 55 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 ICFAN - Jul 13, 13:15 UTCJul 13, 13:30 UTC15m
2026-07-13 ICFAN - Jul 13, 11:55 UTCJul 13, 12:40 UTC45m
2026-07-13 ICFAN MXP → MXP Jul 13, 09:15 UTCJul 13, 11:00 UTC1h 45m
2026-07-13 ICFAN - Jul 13, 08:01 UTCJul 13, 08:20 UTC20m
2026-07-13 ICFAN - Jul 13, 06:35 UTCJul 13, 07:15 UTC40m
2026-07-12 ICFAN - Jul 12, 16:15 UTCJul 12, 16:30 UTC15m
2026-07-12 ICFAN - Jul 12, 14:35 UTCJul 12, 14:50 UTC15m
2026-07-12 ICFAN - Jul 12, 12:50 UTCJul 12, 13:35 UTC45m
2026-07-12 ICFAN - Jul 12, 11:55 UTCJul 12, 12:05 UTC10m
2026-07-12 ICFAN - Jul 12, 10:15 UTCJul 12, 10:55 UTC40m
2026-07-12 ICFAN - Jul 12, 09:15 UTCJul 12, 09:25 UTC10m
2026-07-12 ICFAN - Jul 12, 08:05 UTCJul 12, 08:20 UTC15m
2026-07-12 ICFAN - Jul 12, 06:35 UTCJul 12, 06:50 UTC15m
2026-07-11 ICFAN - Jul 11, 13:05 UTCJul 11, 13:25 UTC20m
2026-07-11 ICFAN - Jul 11, 11:45 UTCJul 11, 11:55 UTC10m
2026-07-11 ICFAN MXP → MXP Jul 11, 11:35 UTCJul 11, 11:40 UTC5m
2026-07-11 ICFAN - Jul 11, 10:35 UTCJul 11, 10:50 UTC15m
2026-07-11 ICFAN - Jul 11, 09:05 UTCJul 11, 09:20 UTC15m
2026-07-11 ICFAN - Jul 11, 08:10 UTCJul 11, 08:25 UTC15m
2026-07-11 ICFAN - Jul 11, 07:15 UTCJul 11, 07:30 UTC15m
2026-07-10 ICFAN - Jul 10, 14:10 UTCJul 10, 14:30 UTC20m
2026-07-10 ICFAN - Jul 10, 13:00 UTCJul 10, 13:15 UTC15m
2026-07-10 ICFAN - Jul 10, 11:45 UTCJul 10, 12:05 UTC20m
2026-07-10 ICFAN - Jul 10, 10:00 UTCJul 10, 10:15 UTC15m
2026-07-10 ICFAN - Jul 10, 08:50 UTCJul 10, 09:05 UTC15m
2026-07-10 ICFAN - Jul 10, 07:15 UTCJul 10, 07:30 UTC15m
2026-07-09 ICFAN - Jul 9, 15:55 UTCJul 9, 16:10 UTC15m
2026-07-09 ICFAN - Jul 9, 14:20 UTCJul 9, 14:35 UTC15m
2026-07-09 ICFAN MXP → MXP Jul 9, 11:35 UTCJul 9, 13:25 UTC1h 50m
2026-07-09 ICFAN - Jul 9, 08:55 UTCJul 9, 10:20 UTC1h 25m
2026-07-09 ICFAN - Jul 9, 06:35 UTCJul 9, 07:45 UTC1h 10m
2026-07-07 ICFAN - Jul 7, 16:40 UTCJul 7, 17:40 UTC1h 0m
2026-07-07 ICFAN - Jul 7, 14:30 UTCJul 7, 16:00 UTC1h 30m
2026-07-06 ICFAN - Jul 6, 15:35 UTCJul 6, 16:55 UTC1h 20m
2026-07-06 ICFAN - Jul 6, 12:55 UTCJul 6, 14:35 UTC1h 40m
2026-07-05 ICFAN - Jul 5, 16:40 UTCJul 5, 17:40 UTC1h 0m
2026-07-05 ICFAN - Jul 5, 14:25 UTCJul 5, 15:25 UTC1h 0m
2026-07-01 ICFAN - Jul 1, 12:05 UTCJul 1, 12:10 UTC5m
2026-06-30 ICFAN - Jun 30, 15:45 UTCJun 30, 15:50 UTC5m
2026-06-30 ICFAN PEG → PEG Jun 30, 14:50 UTCJun 30, 14:55 UTC5m
2026-06-29 ICFAN - Jun 29, 16:15 UTCJun 29, 16:55 UTC40m
2026-06-29 ICFAN - Jun 29, 13:44 UTCJun 29, 15:09 UTC1h 25m
2026-06-28 ICFAN - Jun 28, 15:14 UTCJun 28, 17:00 UTC1h 45m
2026-06-25 ICFAN - Jun 25, 10:35 UTCJun 25, 11:50 UTC1h 15m
2026-06-24 ICFAN - Jun 24, 16:45 UTCJun 24, 16:59 UTC15m
2026-06-12 ICFAN - Jun 12, 16:50 UTCJun 12, 17:10 UTC20m
2026-06-12 ICFAN - Jun 12, 15:30 UTCJun 12, 15:50 UTC20m
2026-05-24 ICFAN - May 24, 15:35 UTCMay 24, 15:45 UTC10m
2026-05-07 ICFAN - May 7, 09:05 UTCMay 7, 09:45 UTC40m
2026-05-06 ICFAN - May 6, 12:25 UTCMay 6, 13:15 UTC50m

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 N171AC page for operator, model, and routing details .

Mode-S A11CE7 frequently asked

What is Mode-S code A11CE7?
A11CE7 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N171AC.
Where is Mode-S A11CE7 registered?
Mode-S code A11CE7 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 A11CE7 broadcasting right now?
No active broadcast right now. Last signal was 21h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A11CE7, octal 50216347, decimal 10,558,695.
What flights does A11CE7 operate?
Mode-S A11CE7 has broadcast 1 distinct callsign, including ICFAN.