sensors Mode-S transponder

A9B6B2

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N725FX · CESSNA 208 Caravan · operated by FEDERAL EXPRESS CORPORATION

Hex
A9B6B2
Octal
52333262
Decimal
11,122,354
Country
US
Tail
N725FX
Type
C208
No current signal · last broadcast 2d ago
Flights observed
66
Distinct callsigns
20
Country
US
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S A9B6B2.

Country allocation

The ICAO 24-bit address A9B6B2 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 20 distinct

Callsign Airline Flights Last seen
CPT7555 - 12 2026-07-10
CPT8589 Corporate Air 8 2026-07-09
CPT7589 - 7 2026-07-09
CPT8564 - 6 2026-06-27
CPT8555 - 6 2026-07-10
CPT725 - 5 2026-06-25
CPT8594 Corporate Air 4 2026-06-30
CPT8586 - 2 2026-07-07
CPT7583 - 2 2026-06-27
CPT7562 - 2 2026-06-06
CPT2123 - 2 2026-07-06
CPT8976 - 1 2026-05-23
CPT8975 - 1 2026-05-27
CPT883 - 1 2026-04-21
CPT85555 - 1 2026-06-26
CPT8291 - 1 2026-04-17
CPT8204 - 1 2026-07-15
CPT7599 - 1 2026-05-19
CPT7564 - 1 2026-04-15
CPT520 - 1 2026-06-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 CPT8204 - Jul 15, 14:15 UTCJul 15, 18:00 UTC3h 45m
2026-07-10 CPT7555 - Jul 10, 23:35 UTCJul 11, 00:20 UTC45m
2026-07-10 CPT8555 - Jul 10, 13:35 UTCJul 10, 14:10 UTC35m
2026-07-09 CPT7589 - Jul 9, 23:20 UTCJul 9, 23:50 UTC30m
2026-07-09 CPT8589 FAR → BJI Jul 9, 13:15 UTCJul 9, 13:30 UTC15m
2026-07-08 CPT7589 - Jul 8, 23:10 UTCJul 8, 23:45 UTC35m
2026-07-08 CPT8589 FAR → BJI Jul 8, 13:05 UTCJul 8, 13:30 UTC25m
2026-07-07 CPT8586 - Jul 7, 15:25 UTCJul 7, 15:50 UTC25m
2026-07-07 CPT8586 - Jul 7, 14:05 UTCJul 7, 14:30 UTC25m
2026-07-06 CPT7555 - Jul 6, 23:30 UTCJul 7, 00:10 UTC40m
2026-07-06 CPT2123 - Jul 6, 19:10 UTCJul 6, 19:35 UTC25m
2026-07-02 CPT7589 - Jul 2, 23:15 UTCJul 2, 23:40 UTC25m
2026-07-02 CPT8589 FAR → BJI Jul 2, 13:05 UTCJul 2, 13:25 UTC20m
2026-07-01 CPT7589 - Jul 1, 23:50 UTCJul 2, 00:15 UTC25m
2026-07-01 CPT8589 FAR → BJI Jul 1, 13:30 UTCJul 1, 13:50 UTC20m
2026-06-30 CPT8594 FAR → BIS Jun 30, 21:25 UTCJun 30, 21:45 UTC20m
2026-06-30 CPT8594 FAR → BIS Jun 30, 17:05 UTCJun 30, 17:45 UTC40m
2026-06-27 CPT7583 - Jun 27, 21:50 UTCJun 27, 22:09 UTC20m
2026-06-27 CPT8564 - Jun 27, 14:29 UTCJun 27, 14:54 UTC25m
2026-06-27 CPT7555 - Jun 27, 00:10 UTCJun 27, 00:29 UTC20m
2026-06-26 CPT85555 - Jun 26, 16:30 UTCJun 26, 17:00 UTC30m
2026-06-25 CPT725 - Jun 25, 23:30 UTCJun 26, 00:10 UTC40m
2026-06-25 CPT8594 FAR → BIS Jun 25, 14:44 UTCJun 25, 15:15 UTC30m
2026-06-23 CPT7555 - Jun 23, 23:55 UTCJun 24, 00:20 UTC25m
2026-06-23 CPT8555 - Jun 23, 15:09 UTCJun 23, 15:40 UTC30m
2026-06-20 CPT7583 BIS → FAR Jun 20, 20:45 UTCJun 20, 21:25 UTC40m
2026-06-20 CPT8564 FAR → MOT Jun 20, 14:09 UTCJun 20, 14:35 UTC25m
2026-06-19 CPT7589 - Jun 19, 23:39 UTCJun 20, 00:04 UTC25m
2026-06-19 CPT8589 FAR → BJI Jun 19, 13:09 UTCJun 19, 13:34 UTC25m
2026-06-18 CPT7589 - Jun 18, 23:35 UTCJun 19, 00:00 UTC25m
2026-06-18 CPT8589 FAR → BJI Jun 18, 13:20 UTCJun 18, 13:45 UTC25m
2026-06-17 CPT520 - Jun 17, 15:55 UTCJun 17, 17:15 UTC1h 20m
2026-06-13 CPT725 - Jun 13, 16:40 UTCJun 13, 18:05 UTC1h 25m
2026-06-12 CPT725 - Jun 12, 15:55 UTCJun 12, 16:50 UTC55m
2026-06-09 CPT8555 FAR → DIK Jun 9, 21:45 UTCJun 9, 22:10 UTC25m
2026-06-09 CPT8555 FAR → DIK Jun 9, 14:10 UTCJun 9, 14:40 UTC30m
2026-06-09 CPT7555 - Jun 9, 00:00 UTCJun 9, 00:25 UTC25m
2026-06-08 CPT2123 - Jun 8, 19:00 UTCJun 8, 19:25 UTC25m
2026-06-06 CPT7562 - Jun 6, 01:55 UTCJun 6, 02:10 UTC15m
2026-06-06 CPT7562 - Jun 6, 00:00 UTCJun 6, 00:10 UTC10m
2026-06-05 CPT725 - Jun 5, 15:30 UTCJun 5, 16:55 UTC1h 25m
2026-06-02 CPT7589 BJI → FAR Jun 2, 23:40 UTCJun 3, 00:05 UTC25m
2026-06-02 CPT8589 FAR → BJI Jun 2, 13:50 UTCJun 2, 14:15 UTC25m
2026-05-30 CPT7555 - May 30, 00:15 UTCMay 30, 00:40 UTC25m
2026-05-29 CPT8555 FAR → DIK May 29, 13:05 UTCMay 29, 13:30 UTC25m
2026-05-29 CPT7555 - May 29, 00:10 UTCMay 29, 00:30 UTC20m
2026-05-28 CPT8555 FAR → DIK May 28, 13:50 UTCMay 28, 14:25 UTC35m
2026-05-27 CPT725 - May 27, 23:15 UTCMay 27, 23:55 UTC40m
2026-05-27 CPT8975 - May 27, 14:20 UTCMay 27, 14:45 UTC25m
2026-05-26 CPT7555 - May 26, 23:54 UTCMay 27, 00:19 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 N725FX page for operator, model, and routing details .

Mode-S A9B6B2 frequently asked

What is Mode-S code A9B6B2?
A9B6B2 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N725FX.
Where is Mode-S A9B6B2 registered?
Mode-S code A9B6B2 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 A9B6B2 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A9B6B2, octal 52333262, decimal 11,122,354.
What flights does A9B6B2 operate?
Mode-S A9B6B2 has broadcast 20 distinct callsigns, including CPT7555, CPT8589, CPT7589, CPT8564, CPT8555.