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sensors Mode-S transponder

A872FB

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N64317 · CESSNA 172 Skyhawk · operated by SPERNAK AIRWAYS INC

Hex
A872FB
Octal
52071373
Decimal
11,039,483
Country
US
Tail
N64317
Type
C172
No current signal · last broadcast 16h ago
Flights observed
144
Distinct callsigns
1
Country
US
Last broadcast
16h ago

Last known position

Most recent position reported by Mode-S A872FB.

Country allocation

The ICAO 24-bit address A872FB 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
N64317 - 144 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-11 N64317 - Jul 11, 16:25 UTCJul 11, 17:15 UTC50m
2026-07-10 N64317 BVU → MRI Jul 10, 22:40 UTCJul 11, 00:30 UTC1h 50m
2026-07-10 N64317 - Jul 10, 21:55 UTCJul 10, 22:25 UTC30m
2026-07-10 N64317 - Jul 10, 20:45 UTCJul 10, 21:15 UTC30m
2026-07-10 N64317 MRI → TYE Jul 10, 20:05 UTCJul 10, 20:35 UTC30m
2026-07-10 N64317 - Jul 10, 16:15 UTCJul 10, 18:30 UTC2h 15m
2026-07-09 N64317 - Jul 9, 16:25 UTCJul 9, 17:20 UTC55m
2026-07-08 N64317 - Jul 8, 20:25 UTCJul 8, 21:20 UTC55m
2026-07-08 N64317 - Jul 8, 16:25 UTCJul 8, 17:50 UTC1h 25m
2026-07-07 N64317 MRI → MRI Jul 7, 16:30 UTCJul 7, 17:20 UTC50m
2026-07-06 N64317 MRI → MRI Jul 6, 21:55 UTCJul 6, 23:10 UTC1h 15m
2026-07-06 N64317 - Jul 6, 19:40 UTCJul 6, 20:20 UTC40m
2026-07-06 N64317 - Jul 6, 18:50 UTCJul 6, 19:25 UTC35m
2026-07-06 N64317 - Jul 6, 16:25 UTCJul 6, 17:10 UTC45m
2026-07-02 N64317 - Jul 2, 19:45 UTCJul 2, 20:25 UTC40m
2026-07-02 N64317 - Jul 2, 18:50 UTCJul 2, 19:30 UTC40m
2026-07-02 N64317 MRI → MRI Jul 2, 16:30 UTCJul 2, 17:20 UTC50m
2026-07-01 N64317 - Jul 1, 22:30 UTCJul 1, 22:55 UTC25m
2026-07-01 N64317 - Jul 1, 22:00 UTCJul 1, 22:20 UTC20m
2026-07-01 N64317 BVU → MRI Jul 1, 20:40 UTCJul 1, 21:05 UTC25m
2026-07-01 N64317 - Jul 1, 20:00 UTCJul 1, 20:30 UTC30m
2026-07-01 N64317 MRI → MRI Jul 1, 16:20 UTCJul 1, 18:50 UTC2h 30m
2026-06-30 N64317 - Jun 30, 21:15 UTCJun 30, 22:10 UTC55m
2026-06-30 N64317 - Jun 30, 20:30 UTCJun 30, 20:55 UTC25m
2026-06-30 N64317 MRI → TYE Jun 30, 19:50 UTCJun 30, 20:15 UTC25m
2026-06-30 N64317 - Jun 30, 18:35 UTCJun 30, 19:30 UTC55m
2026-06-30 N64317 - Jun 30, 16:25 UTCJun 30, 17:00 UTC35m
2026-06-29 N64317 - Jun 29, 18:30 UTCJun 29, 19:29 UTC1h 0m
2026-06-29 N64317 - Jun 29, 16:29 UTCJun 29, 17:10 UTC40m
2026-06-27 N64317 - Jun 27, 16:35 UTCJun 27, 17:25 UTC50m
2026-06-26 N64317 - Jun 26, 16:30 UTCJun 26, 17:19 UTC50m
2026-06-25 N64317 - Jun 25, 20:49 UTCJun 25, 21:15 UTC25m
2026-06-25 N64317 - Jun 25, 20:05 UTCJun 25, 20:30 UTC25m
2026-06-25 N64317 - Jun 25, 16:39 UTCJun 25, 17:30 UTC50m
2026-06-24 N64317 - Jun 24, 22:35 UTCJun 24, 22:55 UTC20m
2026-06-24 N64317 - Jun 24, 21:54 UTCJun 24, 22:19 UTC25m
2026-06-24 N64317 - Jun 24, 19:59 UTCJun 24, 20:49 UTC50m
2026-06-24 N64317 - Jun 24, 17:40 UTCJun 24, 19:00 UTC1h 20m
2026-06-23 N64317 - Jun 23, 19:59 UTCJun 23, 20:54 UTC55m
2026-06-23 N64317 - Jun 23, 18:34 UTCJun 23, 18:55 UTC20m
2026-06-23 N64317 MRI → BVU Jun 23, 17:54 UTCJun 23, 18:20 UTC25m
2026-06-23 N64317 MRI → MRI Jun 23, 16:29 UTCJun 23, 17:30 UTC1h 0m
2026-06-22 N64317 MRI → MRI Jun 22, 16:20 UTCJun 22, 17:20 UTC1h 0m
2026-06-20 N64317 - Jun 20, 16:09 UTCJun 20, 16:55 UTC45m
2026-06-19 N64317 - Jun 19, 22:04 UTCJun 19, 22:30 UTC25m
2026-06-19 N64317 - Jun 19, 20:34 UTCJun 19, 21:49 UTC1h 15m
2026-06-19 N64317 - Jun 19, 19:54 UTCJun 19, 20:24 UTC30m
2026-06-19 N64317 MRI → MRI Jun 19, 16:25 UTCJun 19, 17:19 UTC55m
2026-06-19 N64317 BVU → MRI Jun 19, 00:05 UTCJun 19, 00:29 UTC24m
2026-06-18 N64317 - Jun 18, 23:25 UTCJun 18, 23:50 UTC25m

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 N64317 page for operator, model, and routing details .

Mode-S A872FB frequently asked

What is Mode-S code A872FB?
A872FB is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N64317.
Where is Mode-S A872FB registered?
Mode-S code A872FB 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 A872FB broadcasting right now?
No active broadcast right now. Last signal was 16h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A872FB, octal 52071373, decimal 11,039,483.
What flights does A872FB operate?
Mode-S A872FB has broadcast 1 distinct callsign, including N64317.