Apparatus

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sensors Mode-S transponder

A657F0

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N508CX · ROBINSON R-44 Raven · operated by AV8 FLIGHT ASSETS LLC

Hex
A657F0
Octal
51453760
Decimal
10,901,488
Country
US
Tail
N508CX
Type
R44
No current signal · last broadcast Jul 26, 19:30 UTC
Flights observed
111
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 19:30 UTC

Last known position

Most recent position reported by Mode-S A657F0.

Country allocation

The ICAO 24-bit address A657F0 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
BRW1 - 111 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 BRW1 FCM → FCM Jul 26, 18:40 UTCJul 26, 19:30 UTC50m
2026-07-25 BRW1 FCM → FCM Jul 25, 16:45 UTCJul 25, 17:25 UTC40m
2026-07-25 BRW1 FCM → FCM Jul 25, 16:35 UTCJul 25, 16:40 UTC5m
2026-07-24 BRW1 FCM → FCM Jul 24, 16:30 UTCJul 24, 17:35 UTC1h 5m
2026-07-20 BRW1 FCM → FCM Jul 20, 21:25 UTCJul 20, 22:20 UTC55m
2026-07-17 BRW1 - Jul 17, 21:44 UTCJul 17, 22:15 UTC30m
2026-07-17 BRW1 - Jul 17, 11:39 UTCJul 17, 12:19 UTC40m
2026-07-15 BRW1 - Jul 15, 21:30 UTCJul 15, 22:15 UTC45m
2026-07-15 BRW1 FCM → FCM Jul 15, 18:15 UTCJul 15, 19:35 UTC1h 20m
2026-07-15 BRW1 FCM → FCM Jul 15, 15:55 UTCJul 15, 17:25 UTC1h 30m
2026-07-15 BRW1 - Jul 15, 02:50 UTCJul 15, 04:45 UTC1h 55m
2026-07-14 BRW1 - Jul 14, 20:50 UTCJul 14, 22:25 UTC1h 35m
2026-07-14 BRW1 - Jul 14, 16:40 UTCJul 14, 17:55 UTC1h 15m
2026-07-13 BRW1 FCM → FCM Jul 13, 20:35 UTCJul 13, 21:05 UTC30m
2026-07-13 BRW1 FCM → FCM Jul 13, 20:05 UTCJul 13, 20:30 UTC25m
2026-07-13 BRW1 FCM → FCM Jul 13, 13:10 UTCJul 13, 14:50 UTC1h 40m
2026-07-12 BRW1 - Jul 12, 17:50 UTCJul 12, 18:45 UTC55m
2026-07-12 BRW1 - Jul 12, 16:40 UTCJul 12, 17:10 UTC30m
2026-07-11 BRW1 FCM → FCM Jul 11, 14:20 UTCJul 11, 14:30 UTC10m
2026-07-11 BRW1 - Jul 11, 13:25 UTCJul 11, 14:15 UTC50m
2026-07-10 BRW1 - Jul 10, 13:20 UTCJul 10, 15:15 UTC1h 55m
2026-07-09 BRW1 - Jul 9, 20:30 UTCJul 9, 21:35 UTC1h 5m
2026-07-09 BRW1 - Jul 9, 19:15 UTCJul 9, 19:40 UTC25m
2026-07-09 BRW1 FCM → FCM Jul 9, 16:45 UTCJul 9, 16:55 UTC10m
2026-07-07 BRW1 FCM → FCM Jul 7, 20:00 UTCJul 7, 21:15 UTC1h 15m
2026-07-03 BRW1 FCM → FCM Jul 3, 18:00 UTCJul 3, 18:05 UTC5m
2026-07-02 BRW1 - Jul 2, 17:50 UTCJul 2, 18:05 UTC15m
2026-06-30 BRW1 - Jun 30, 21:40 UTCJun 30, 22:20 UTC40m
2026-06-30 BRW1 - Jun 30, 20:15 UTCJun 30, 20:50 UTC35m
2026-06-30 BRW1 - Jun 30, 16:15 UTCJun 30, 17:15 UTC1h 0m
2026-06-30 BRW1 - Jun 30, 14:05 UTCJun 30, 15:05 UTC1h 0m
2026-06-29 BRW1 FCM → FCM Jun 29, 13:49 UTCJun 29, 15:00 UTC1h 10m
2026-06-27 BRW1 - Jun 27, 13:09 UTCJun 27, 15:14 UTC2h 5m
2026-06-26 BRW1 - Jun 26, 18:44 UTCJun 26, 20:34 UTC1h 50m
2026-06-26 BRW1 - Jun 26, 16:30 UTCJun 26, 17:15 UTC45m
2026-06-26 BRW1 FCM → FCM Jun 26, 13:15 UTCJun 26, 14:50 UTC1h 35m
2026-06-25 BRW1 - Jun 25, 19:44 UTCJun 25, 20:09 UTC25m
2026-06-25 BRW1 - Jun 25, 17:30 UTCJun 25, 19:09 UTC1h 40m
2026-06-25 BRW1 FCM → FCM Jun 25, 16:09 UTCJun 25, 16:50 UTC40m
2026-06-24 BRW1 - Jun 24, 22:04 UTCJun 24, 22:29 UTC25m
2026-06-24 BRW1 - Jun 24, 18:34 UTCJun 24, 21:04 UTC2h 30m
2026-06-24 BRW1 - Jun 24, 14:55 UTCJun 24, 17:40 UTC2h 45m
2026-06-24 BRW1 - Jun 24, 13:54 UTCJun 24, 14:09 UTC15m
2026-06-22 BRW1 - Jun 22, 22:15 UTCJun 22, 22:49 UTC35m
2026-06-22 BRW1 - Jun 22, 19:29 UTCJun 22, 20:30 UTC1h 0m
2026-06-22 BRW1 FCM → FCM Jun 22, 15:59 UTCJun 22, 16:24 UTC25m
2026-06-21 BRW1 - Jun 21, 16:19 UTCJun 21, 16:39 UTC20m
2026-06-21 BRW1 - Jun 21, 14:15 UTCJun 21, 14:30 UTC15m
2026-06-20 BRW1 FCM → FCM Jun 20, 15:14 UTCJun 20, 15:39 UTC25m
2026-06-20 BRW1 - Jun 20, 13:19 UTCJun 20, 14:19 UTC1h 0m

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 N508CX page for operator, model, and routing details .

Mode-S A657F0 frequently asked

What is Mode-S code A657F0?
A657F0 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N508CX.
Where is Mode-S A657F0 registered?
Mode-S code A657F0 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 A657F0 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 19:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A657F0, octal 51453760, decimal 10,901,488.
What flights does A657F0 operate?
Mode-S A657F0 has broadcast 1 distinct callsign, including BRW1.