Apparatus

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sensors Mode-S transponder

A8920F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N651SP · CESSNA T206 Turbo Stationair · operated by NEW YORK STATE POLICE

Hex
A8920F
Octal
52111017
Decimal
11,047,439
Country
US
Tail
N651SP
Type
T206
No current signal · last broadcast Jul 24, 17:55 UTC
Flights observed
62
Distinct callsigns
1
Country
US
Last broadcast
Jul 24, 17:55 UTC

Last known position

Most recent position reported by Mode-S A8920F.

Country allocation

The ICAO 24-bit address A8920F 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
GRYDR51 - 62 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 GRYDR51 - Jul 24, 17:40 UTCJul 24, 17:50 UTC10m
2026-07-24 GRYDR51 ROC → IUA Jul 24, 13:00 UTCJul 24, 17:00 UTC4h 0m
2026-07-22 GRYDR51 ROC → ROC Jul 22, 18:05 UTCJul 22, 22:05 UTC4h 0m
2026-07-22 GRYDR51 - Jul 22, 16:30 UTCJul 22, 17:10 UTC40m
2026-07-22 GRYDR51 - Jul 22, 15:35 UTCJul 22, 15:55 UTC20m
2026-07-08 GRYDR51 - Jul 8, 17:10 UTCJul 8, 17:25 UTC15m
2026-07-08 GRYDR51 - Jul 8, 16:00 UTCJul 8, 16:15 UTC15m
2026-06-30 GRYDR51 - Jun 30, 17:20 UTCJun 30, 19:25 UTC2h 5m
2026-06-30 GRYDR51 - Jun 30, 13:40 UTCJun 30, 16:30 UTC2h 50m
2026-06-29 GRYDR51 - Jun 29, 19:05 UTCJun 29, 19:20 UTC15m
2026-06-29 GRYDR51 - Jun 29, 18:05 UTCJun 29, 18:34 UTC30m
2026-06-29 GRYDR51 - Jun 29, 16:15 UTCJun 29, 17:14 UTC1h 0m
2026-06-29 GRYDR51 - Jun 29, 12:34 UTCJun 29, 13:54 UTC1h 20m
2026-06-28 GRYDR51 ROC → ROC Jun 28, 19:04 UTCJun 28, 20:45 UTC1h 40m
2026-06-26 GRYDR51 - Jun 26, 18:20 UTCJun 26, 18:39 UTC20m
2026-06-26 GRYDR51 - Jun 26, 16:49 UTCJun 26, 17:44 UTC55m
2026-06-26 GRYDR51 - Jun 26, 15:34 UTCJun 26, 15:45 UTC10m
2026-06-26 GRYDR51 - Jun 26, 13:49 UTCJun 26, 13:59 UTC10m
2026-06-26 GRYDR51 - Jun 26, 12:44 UTCJun 26, 13:04 UTC20m
2026-06-24 GRYDR51 - Jun 24, 18:39 UTCJun 24, 19:10 UTC30m
2026-06-24 GRYDR51 - Jun 24, 12:34 UTCJun 24, 13:00 UTC25m
2026-06-23 GRYDR51 - Jun 23, 21:39 UTCJun 23, 22:10 UTC30m
2026-06-23 GRYDR51 - Jun 23, 15:15 UTCJun 23, 16:14 UTC1h 0m
2026-06-22 GRYDR51 - Jun 22, 20:10 UTCJun 22, 20:39 UTC30m
2026-06-22 GRYDR51 - Jun 22, 18:49 UTCJun 22, 19:14 UTC25m
2026-06-22 GRYDR51 - Jun 22, 17:25 UTCJun 22, 18:09 UTC45m
2026-06-22 GRYDR51 - Jun 22, 16:20 UTCJun 22, 16:54 UTC35m
2026-06-19 GRYDR51 - Jun 19, 14:04 UTCJun 19, 15:49 UTC1h 45m
2026-06-19 GRYDR51 - Jun 19, 00:29 UTCJun 19, 00:45 UTC15m
2026-06-18 GRYDR51 - Jun 18, 23:20 UTCJun 18, 23:45 UTC25m
2026-06-17 GRYDR51 - Jun 17, 18:50 UTCJun 17, 19:40 UTC50m
2026-06-17 GRYDR51 ALB → ALB Jun 17, 13:25 UTCJun 17, 16:35 UTC3h 10m
2026-06-16 GRYDR51 - Jun 16, 16:25 UTCJun 16, 16:55 UTC30m
2026-06-16 GRYDR51 - Jun 16, 13:25 UTCJun 16, 15:24 UTC2h 0m
2026-06-15 GRYDR51 - Jun 15, 20:04 UTCJun 15, 20:34 UTC30m
2026-06-15 GRYDR51 - Jun 15, 18:55 UTCJun 15, 19:25 UTC30m
2026-06-15 GRYDR51 - Jun 15, 17:04 UTCJun 15, 17:34 UTC30m
2026-06-15 GRYDR51 - Jun 15, 15:15 UTCJun 15, 15:35 UTC20m
2026-06-12 GRYDR51 - Jun 12, 17:20 UTCJun 12, 17:30 UTC10m
2026-06-10 GRYDR51 ROC → ALB Jun 10, 14:05 UTCJun 10, 15:20 UTC1h 15m
2026-06-08 GRYDR51 ROC → ROC Jun 8, 19:10 UTCJun 8, 21:15 UTC2h 5m
2026-06-07 GRYDR51 ROC → ROC Jun 7, 19:10 UTCJun 7, 20:30 UTC1h 20m
2026-05-31 GRYDR51 - May 31, 21:55 UTCMay 31, 23:30 UTC1h 35m
2026-05-31 GRYDR51 - May 31, 17:25 UTCMay 31, 18:20 UTC55m
2026-05-27 GRYDR51 - May 27, 17:55 UTCMay 27, 18:30 UTC35m
2026-05-27 GRYDR51 - May 27, 16:30 UTCMay 27, 17:10 UTC40m
2026-05-21 GRYDR51 ROC → ALB May 21, 18:05 UTCMay 21, 19:15 UTC1h 10m
2026-05-21 GRYDR51 - May 21, 01:50 UTCMay 21, 02:00 UTC10m
2026-05-21 GRYDR51 - May 21, 01:40 UTCMay 21, 01:45 UTC5m
2026-05-20 GRYDR51 ROC → ROC May 20, 16:55 UTCMay 20, 18:45 UTC1h 50m

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 N651SP page for operator, model, and routing details .

Mode-S A8920F frequently asked

What is Mode-S code A8920F?
A8920F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N651SP.
Where is Mode-S A8920F registered?
Mode-S code A8920F 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 A8920F broadcasting right now?
No active broadcast right now. Last signal was Jul 24, 17:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8920F, octal 52111017, decimal 11,047,439.
What flights does A8920F operate?
Mode-S A8920F has broadcast 1 distinct callsign, including GRYDR51.