Apparatus

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sensors Mode-S transponder

A87F7E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N647CR · operated by CHRISTIANSEN AVIATION LLC

Hex
A87F7E
Octal
52077576
Decimal
11,042,686
Country
US
Tail
N647CR
Type
C172
No current signal · last broadcast 12d ago
Flights observed
94
Distinct callsigns
1
Country
US
Last broadcast
12d ago

Last known position

Most recent position reported by Mode-S A87F7E.

Country allocation

The ICAO 24-bit address A87F7E 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
ASI96 - 94 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 ASI96 DVT → DVT Jul 16, 18:34 UTCJul 16, 19:05 UTC30m
2026-07-15 ASI96 DVT → DVT Jul 15, 18:35 UTCJul 15, 19:50 UTC1h 15m
2026-07-15 ASI96 DVT → DVT Jul 15, 13:45 UTCJul 15, 16:25 UTC2h 40m
2026-07-15 ASI96 DVT → DVT Jul 15, 00:05 UTCJul 15, 01:15 UTC1h 10m
2026-07-13 ASI96 - Jul 13, 17:35 UTCJul 13, 20:00 UTC2h 25m
2026-07-13 ASI96 - Jul 13, 13:50 UTCJul 13, 16:30 UTC2h 40m
2026-07-12 ASI96 DVT → DVT Jul 12, 20:25 UTCJul 12, 20:50 UTC25m
2026-07-12 ASI96 DVT → DVT Jul 12, 17:30 UTCJul 12, 19:25 UTC1h 55m
2026-07-12 ASI96 DVT → DVT Jul 12, 13:45 UTCJul 12, 14:01 UTC15m
2026-07-12 ASI96 DVT → DVT Jul 12, 10:45 UTCJul 12, 11:01 UTC15m
2026-07-07 ASI96 - Jul 7, 17:50 UTCJul 7, 18:50 UTC1h 0m
2026-07-06 ASI96 DVT → DVT Jul 6, 16:20 UTCJul 6, 19:00 UTC2h 40m
2026-07-06 ASI96 - Jul 6, 15:05 UTCJul 6, 15:15 UTC10m
2026-07-06 ASI96 - Jul 6, 13:55 UTCJul 6, 15:00 UTC1h 5m
2026-07-06 ASI96 - Jul 6, 03:45 UTCJul 6, 04:00 UTC15m
2026-07-05 ASI96 - Jul 5, 23:45 UTCJul 6, 02:10 UTC2h 25m
2026-07-05 ASI96 DVT → DVT Jul 5, 21:05 UTCJul 5, 21:50 UTC45m
2026-07-05 ASI96 DVT → DVT Jul 5, 18:00 UTCJul 5, 19:20 UTC1h 20m
2026-07-05 ASI96 DVT → DVT Jul 5, 14:20 UTCJul 5, 16:25 UTC2h 5m
2026-07-04 ASI96 DVT → DVT Jul 4, 23:15 UTCJul 5, 00:45 UTC1h 30m
2026-07-04 ASI96 DVT → DVT Jul 4, 20:00 UTCJul 4, 21:35 UTC1h 35m
2026-07-04 ASI96 - Jul 4, 15:20 UTCJul 4, 16:50 UTC1h 30m
2026-07-01 ASI96 - Jul 1, 23:05 UTCJul 2, 00:15 UTC1h 10m
2026-07-01 ASI96 DVT → DVT Jul 1, 19:05 UTCJul 1, 21:35 UTC2h 30m
2026-07-01 ASI96 - Jul 1, 16:35 UTCJul 1, 18:15 UTC1h 40m
2026-06-30 ASI96 - Jun 30, 23:00 UTCJul 1, 00:20 UTC1h 20m
2026-06-30 ASI96 DVT → DVT Jun 30, 19:25 UTCJun 30, 20:55 UTC1h 30m
2026-06-30 ASI96 DVT → DVT Jun 30, 16:35 UTCJun 30, 18:15 UTC1h 40m
2026-06-29 ASI96 DVT → DVT Jun 29, 22:10 UTCJun 30, 00:25 UTC2h 15m
2026-06-29 ASI96 DVT → DVT Jun 29, 19:44 UTCJun 29, 21:09 UTC1h 25m
2026-06-29 ASI96 - Jun 29, 14:19 UTCJun 29, 16:44 UTC2h 25m
2026-06-28 ASI96 DVT → DVT Jun 28, 21:30 UTCJun 28, 23:29 UTC2h 0m
2026-06-27 ASI96 DVT → DVT Jun 27, 15:30 UTCJun 27, 16:39 UTC1h 10m
2026-06-24 ASI96 DVT → DVT Jun 24, 17:55 UTCJun 24, 20:20 UTC2h 25m
2026-06-24 ASI96 DVT → DVT Jun 24, 14:24 UTCJun 24, 16:34 UTC2h 10m
2026-06-23 ASI96 DVT → DVT Jun 23, 20:34 UTCJun 23, 22:49 UTC2h 15m
2026-06-23 ASI96 - Jun 23, 15:19 UTCJun 23, 17:44 UTC2h 25m
2026-06-22 ASI96 DVT → DVT Jun 22, 22:44 UTCJun 23, 01:25 UTC2h 40m
2026-06-22 ASI96 DVT → DVT Jun 22, 18:40 UTCJun 22, 21:05 UTC2h 25m
2026-06-21 ASI96 DVT → DVT Jun 21, 13:59 UTCJun 21, 16:19 UTC2h 20m
2026-06-20 ASI96 DVT → DVT Jun 20, 18:59 UTCJun 20, 20:09 UTC1h 10m
2026-05-28 ASI96 DVT → DVT May 28, 14:10 UTCMay 28, 14:45 UTC35m
2026-05-26 ASI96 DVT → DVT May 26, 22:15 UTCMay 26, 23:39 UTC1h 25m
2026-05-23 ASI96 - May 23, 19:50 UTCMay 23, 20:10 UTC20m
2026-05-23 ASI96 - May 23, 13:30 UTCMay 23, 15:25 UTC1h 55m
2026-05-22 ASI96 - May 22, 17:35 UTCMay 22, 18:05 UTC30m
2026-05-22 ASI96 - May 22, 15:05 UTCMay 22, 17:00 UTC1h 55m
2026-05-22 ASI96 - May 22, 03:35 UTCMay 22, 04:45 UTC1h 10m
2026-05-21 ASI96 - May 21, 16:30 UTCMay 21, 17:45 UTC1h 15m
2026-05-21 ASI96 - May 21, 13:25 UTCMay 21, 14:50 UTC1h 25m

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 N647CR page for operator, model, and routing details .

Mode-S A87F7E frequently asked

What is Mode-S code A87F7E?
A87F7E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N647CR.
Where is Mode-S A87F7E registered?
Mode-S code A87F7E 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 A87F7E broadcasting right now?
No active broadcast right now. Last signal was 12d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A87F7E, octal 52077576, decimal 11,042,686.
What flights does A87F7E operate?
Mode-S A87F7E has broadcast 1 distinct callsign, including ASI96.