Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A64D97

ICAO 24-bit transponder address · allocated to United States

Hex
A64D97
Octal
51446627
Decimal
10,898,839
Country
US
No current signal · last broadcast 23d ago
Flights observed
67
Distinct callsigns
1
Country
US
Last broadcast
23d ago

Last known position

Most recent position reported by Mode-S A64D97.

Country allocation

The ICAO 24-bit address A64D97 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
N505MA - 67 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N505MA - Jul 26, 13:00 UTCJul 26, 15:15 UTC2h 15m
2026-07-25 N505MA - Jul 25, 01:25 UTCJul 25, 02:40 UTC1h 15m
2026-07-24 N505MA - Jul 24, 20:55 UTCJul 24, 21:50 UTC55m
2026-07-20 N505MA - Jul 20, 02:05 UTCJul 20, 02:15 UTC10m
2026-07-20 N505MA - Jul 20, 01:50 UTCJul 20, 02:00 UTC10m
2026-07-20 N505MA BLM → BLM Jul 20, 01:25 UTCJul 20, 01:35 UTC10m
2026-07-19 N505MA - Jul 19, 21:25 UTCJul 19, 23:00 UTC1h 35m
2026-07-19 N505MA - Jul 19, 14:00 UTCJul 19, 14:15 UTC15m
2026-06-30 N505MA - Jun 30, 18:45 UTCJun 30, 18:55 UTC10m
2026-06-28 N505MA - Jun 28, 23:54 UTCJun 29, 00:24 UTC30m
2026-06-28 N505MA - Jun 28, 14:09 UTCJun 28, 14:59 UTC50m
2026-06-26 N505MA - Jun 26, 15:49 UTCJun 26, 17:15 UTC1h 25m
2026-06-26 N505MA - Jun 26, 00:39 UTCJun 26, 01:20 UTC40m
2026-06-25 N505MA - Jun 25, 21:59 UTCJun 25, 22:34 UTC35m
2026-06-25 N505MA - Jun 25, 19:59 UTCJun 25, 20:45 UTC45m
2026-06-25 N505MA - Jun 25, 17:49 UTCJun 25, 18:50 UTC1h 0m
2026-06-25 N505MA - Jun 25, 14:39 UTCJun 25, 15:44 UTC1h 5m
2026-06-21 N505MA - Jun 21, 20:34 UTCJun 21, 22:49 UTC2h 15m
2026-06-20 N505MA - Jun 20, 12:24 UTCJun 20, 13:24 UTC1h 0m
2026-06-19 N505MA - Jun 19, 15:19 UTCJun 19, 15:39 UTC20m
2026-06-19 N505MA - Jun 19, 13:04 UTCJun 19, 13:20 UTC15m
2026-06-18 N505MA - Jun 18, 18:35 UTCJun 18, 19:00 UTC25m
2026-06-18 N505MA - Jun 18, 12:15 UTCJun 18, 12:40 UTC25m
2026-06-16 N505MA - Jun 16, 21:35 UTCJun 16, 22:15 UTC40m
2026-06-16 N505MA - Jun 16, 19:35 UTCJun 16, 20:10 UTC36m
2026-06-14 N505MA - Jun 14, 19:35 UTCJun 14, 22:20 UTC2h 45m
2026-06-12 N505MA - Jun 12, 16:25 UTCJun 12, 17:10 UTC45m
2026-06-10 N505MA - Jun 10, 14:45 UTCJun 10, 15:45 UTC1h 0m
2026-06-07 N505MA - Jun 7, 21:05 UTCJun 7, 21:40 UTC35m
2026-06-07 N505MA - Jun 7, 19:45 UTCJun 7, 20:15 UTC30m
2026-06-03 N505MA IAD → BLM Jun 3, 21:55 UTCJun 3, 23:15 UTC1h 20m
2026-06-03 N505MA - Jun 3, 19:40 UTCJun 3, 21:00 UTC1h 20m
2026-05-31 N505MA - May 31, 16:40 UTCMay 31, 17:45 UTC1h 5m
2026-05-31 N505MA - May 31, 12:45 UTCMay 31, 13:20 UTC35m
2026-05-28 N505MA BLM → BLM May 28, 19:40 UTCMay 28, 20:05 UTC25m
2026-05-28 N505MA - May 28, 14:50 UTCMay 28, 15:25 UTC35m
2026-05-22 N505MA - May 22, 16:05 UTCMay 22, 18:05 UTC2h 0m
2026-05-21 N505MA - May 21, 19:00 UTCMay 21, 19:50 UTC50m
2026-05-21 N505MA - May 21, 17:30 UTCMay 21, 18:15 UTC45m
2026-05-19 N505MA - May 19, 18:20 UTCMay 19, 19:10 UTC50m
2026-05-19 N505MA - May 19, 14:25 UTCMay 19, 15:20 UTC55m
2026-05-17 N505MA - May 17, 20:45 UTCMay 17, 22:15 UTC1h 30m
2026-05-05 N505MA JFK → BLM May 5, 21:10 UTCMay 5, 21:50 UTC40m
2026-05-05 N505MA - May 5, 19:50 UTCMay 5, 20:20 UTC30m
2026-05-05 N505MA - May 5, 17:05 UTCMay 5, 18:25 UTC1h 20m
2026-05-05 N505MA - May 5, 14:30 UTCMay 5, 16:20 UTC1h 50m
2026-05-05 N505MA JFK → BLM May 5, 13:10 UTCMay 5, 13:55 UTC45m
2026-05-05 N505MA BLM → JFK May 5, 11:30 UTCMay 5, 12:15 UTC45m
2026-05-03 N505MA BLM → BLM May 3, 15:40 UTCMay 3, 17:29 UTC1h 50m
2026-05-01 N505MA - May 1, 13:05 UTCMay 1, 13:25 UTC20m

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.

Mode-S A64D97 frequently asked

What is Mode-S code A64D97?
A64D97 is an ICAO 24-bit transponder address. Allocated to United States.
Where is Mode-S A64D97 registered?
Mode-S code A64D97 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 A64D97 broadcasting right now?
No active broadcast right now. Last signal was 23d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A64D97, octal 51446627, decimal 10,898,839.
What flights does A64D97 operate?
Mode-S A64D97 has broadcast 1 distinct callsign, including N505MA.