Apparatus

Try JFK, AAL1290, BAW, or N225AN.

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
Broadcasting now · callsign N64317 · 1,025 ft
Flights observed
21
Distinct callsigns
1
Country
US
Last broadcast
2h ago

Current position

A872FB is currently broadcasting. Map zoomed to live position.

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 - 21 2026-05-14

Recent flights last 21

DateFlightRouteTakeoffLandingDuration
2026-05-14 N64317 MRI → MRI May 14, 16:20 UTCMay 14, 17:20 UTC1h 0m
2026-05-13 N64317 - May 13, 22:45 UTCMay 13, 23:10 UTC25m
2026-05-13 N64317 - May 13, 22:05 UTCMay 13, 22:30 UTC25m
2026-05-13 N64317 - May 13, 20:45 UTCMay 13, 21:10 UTC25m
2026-05-13 N64317 - May 13, 20:10 UTCMay 13, 20:35 UTC25m
2026-05-13 N64317 - May 13, 18:20 UTCMay 13, 19:20 UTC1h 0m
2026-05-13 N64317 - May 13, 16:20 UTCMay 13, 17:35 UTC1h 15m
2026-05-12 N64317 - May 12, 19:05 UTCMay 12, 20:20 UTC1h 15m
2026-05-12 N64317 - May 12, 16:30 UTCMay 12, 17:15 UTC45m
2026-05-11 N64317 MRI → MRI May 11, 18:30 UTCMay 11, 19:50 UTC1h 20m
2026-05-08 N64317 - May 8, 20:05 UTCMay 8, 21:10 UTC1h 5m
2026-05-05 N64317 - May 5, 17:25 UTCMay 5, 20:10 UTC2h 45m
2026-04-30 N64317 - Apr 30, 19:10 UTCApr 30, 21:05 UTC1h 55m
2026-04-29 N64317 - Apr 29, 19:30 UTCApr 29, 20:05 UTC35m
2026-04-29 N64317 MRI → SKW Apr 29, 18:15 UTCApr 29, 19:15 UTC1h 0m
2026-04-28 N64317 - Apr 28, 00:00 UTCApr 28, 00:40 UTC40m
2026-04-26 N64317 - Apr 26, 22:05 UTCApr 26, 22:50 UTC45m
2026-04-14 N64317 - Apr 14, 22:55 UTCApr 14, 23:10 UTC15m
2026-04-14 N64317 - Apr 14, 22:40 UTCApr 14, 22:50 UTC10m
2026-04-14 N64317 MRI → TYE Apr 14, 22:05 UTCApr 14, 22:30 UTC25m
2026-04-14 N64317 - Apr 14, 19:40 UTCApr 14, 20:25 UTC45m

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?
Yes. Mode-S A872FB is currently airborne.
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.