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sensors Mode-S transponder

AD9A71

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N976FE · CESSNA 208 Caravan · operated by FEDERAL EXPRESS CORPORATION

Hex
AD9A71
Octal
53315161
Decimal
11,377,265
Country
US
Tail
N976FE
Type
C208
No current signal · last broadcast Jul 25, 00:45 UTC
Flights observed
137
Distinct callsigns
19
Country
US
Last broadcast
Jul 25, 00:45 UTC

Last known position

Most recent position reported by Mode-S AD9A71.

Country allocation

The ICAO 24-bit address AD9A71 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 19 distinct

Callsign Airline Flights Last seen
CFS7650 - 28 2026-07-11
CFS8650 - 27 2026-07-11
CFS8675 Empire Airlines 15 2026-05-28
CFS7675 - 12 2026-07-16
CFS7697 Empire Airlines 9 2026-05-02
CFS4650 - 9 2026-07-11
CFS8697 Empire Airlines 8 2026-05-01
CFS8655 - 6 2026-07-16
CFS7655 - 6 2026-07-16
CFS7698 Empire Airlines 4 2026-05-23
CFS8204 Empire Airlines 2 2026-05-02
CFS7701 Empire Airlines 2 2026-07-24
CFS4655 Empire Airlines 2 2026-06-01
CFS4204 Empire Airlines 2 2026-05-02
CFS8981 - 1 2026-06-25
CFS8731 Empire Airlines 1 2026-05-30
CFS7664 Empire Airlines 1 2026-05-30
CFS4697 Empire Airlines 1 2026-04-20
CFS202 Empire Airlines 1 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 CFS7701 PSC → GEG Jul 24, 23:55 UTCJul 25, 00:45 UTC50m
2026-07-24 CFS7701 PSC → GEG Jul 24, 22:50 UTCJul 24, 23:05 UTC15m
2026-07-24 CFS202 ACV → LMT Jul 24, 18:40 UTCJul 24, 19:10 UTC30m
2026-07-16 CFS7675 - Jul 16, 23:25 UTCJul 17, 00:04 UTC40m
2026-07-16 CFS8655 - Jul 16, 14:00 UTCJul 16, 15:00 UTC1h 0m
2026-07-16 CFS7655 - Jul 16, 00:05 UTCJul 16, 01:00 UTC55m
2026-07-15 CFS8655 - Jul 15, 13:50 UTCJul 15, 14:50 UTC1h 0m
2026-07-15 CFS7655 - Jul 15, 00:15 UTCJul 15, 01:10 UTC55m
2026-07-14 CFS8655 - Jul 14, 15:55 UTCJul 14, 16:50 UTC55m
2026-07-11 CFS4650 - Jul 11, 16:50 UTCJul 11, 17:25 UTC35m
2026-07-11 CFS8650 - Jul 11, 15:30 UTCJul 11, 16:05 UTC35m
2026-07-11 CFS7650 - Jul 11, 00:25 UTCJul 11, 01:00 UTC35m
2026-07-10 CFS8650 - Jul 10, 15:20 UTCJul 10, 15:55 UTC35m
2026-07-10 CFS7650 - Jul 10, 00:35 UTCJul 10, 01:10 UTC35m
2026-07-09 CFS8650 - Jul 9, 15:50 UTCJul 9, 16:25 UTC35m
2026-07-09 CFS7650 - Jul 9, 00:50 UTCJul 9, 01:15 UTC25m
2026-07-08 CFS8650 - Jul 8, 16:10 UTCJul 8, 16:45 UTC35m
2026-07-02 CFS7650 - Jul 2, 00:35 UTCJul 2, 01:05 UTC30m
2026-07-01 CFS8650 - Jul 1, 15:40 UTCJul 1, 16:10 UTC30m
2026-07-01 CFS7650 - Jul 1, 00:35 UTCJul 1, 01:05 UTC30m
2026-06-30 CFS8650 - Jun 30, 15:25 UTCJun 30, 16:00 UTC35m
2026-06-30 CFS7650 CKE → SMF Jun 30, 00:35 UTCJun 30, 01:04 UTC30m
2026-06-29 CFS4650 - Jun 29, 21:54 UTCJun 29, 22:30 UTC35m
2026-06-25 CFS8981 SMF → SMF Jun 25, 17:09 UTCJun 25, 19:09 UTC2h 0m
2026-06-24 CFS7650 - Jun 24, 00:44 UTCJun 24, 01:19 UTC35m
2026-06-23 CFS8650 - Jun 23, 15:50 UTCJun 23, 16:24 UTC35m
2026-06-23 CFS7650 - Jun 23, 00:35 UTCJun 23, 01:04 UTC30m
2026-06-22 CFS4650 - Jun 22, 21:45 UTCJun 22, 22:15 UTC30m
2026-06-20 CFS4650 SMF → UKI Jun 20, 16:44 UTCJun 20, 17:14 UTC30m
2026-06-20 CFS8650 SMF → UKI Jun 20, 15:14 UTCJun 20, 16:00 UTC45m
2026-06-20 CFS7650 - Jun 20, 00:34 UTCJun 20, 01:05 UTC30m
2026-06-19 CFS8650 SMF → UKI Jun 19, 15:09 UTCJun 19, 15:54 UTC45m
2026-06-19 CFS7650 - Jun 19, 00:34 UTCJun 19, 01:10 UTC35m
2026-06-18 CFS8650 SMF → UKI Jun 18, 15:30 UTCJun 18, 16:15 UTC45m
2026-06-18 CFS7650 - Jun 18, 00:40 UTCJun 18, 01:10 UTC30m
2026-06-17 CFS8650 SMF → UKI Jun 17, 15:25 UTCJun 17, 16:15 UTC50m
2026-06-17 CFS7650 - Jun 17, 00:35 UTCJun 17, 01:10 UTC35m
2026-06-16 CFS8650 SMF → UKI Jun 16, 14:45 UTCJun 16, 15:20 UTC35m
2026-06-16 CFS7650 - Jun 16, 00:35 UTCJun 16, 01:15 UTC40m
2026-06-15 CFS4650 SMF → UKI Jun 15, 22:05 UTCJun 15, 22:40 UTC35m
2026-06-13 CFS8650 SMF → UKI Jun 13, 15:20 UTCJun 13, 16:55 UTC1h 35m
2026-06-13 CFS7650 UKI → SMF Jun 13, 00:25 UTCJun 13, 01:00 UTC35m
2026-06-12 CFS8650 SMF → UKI Jun 12, 15:10 UTCJun 12, 15:50 UTC40m
2026-06-12 CFS7650 UKI → SMF Jun 12, 00:35 UTCJun 12, 01:05 UTC30m
2026-06-11 CFS8650 SMF → UKI Jun 11, 14:50 UTCJun 11, 15:25 UTC35m
2026-06-11 CFS7650 UKI → SMF Jun 11, 00:40 UTCJun 11, 01:10 UTC30m
2026-06-10 CFS8650 SMF → UKI Jun 10, 15:15 UTCJun 10, 15:50 UTC35m
2026-06-10 CFS7650 UKI → SMF Jun 10, 00:40 UTCJun 10, 01:10 UTC30m
2026-06-09 CFS8650 SMF → UKI Jun 9, 16:45 UTCJun 9, 17:25 UTC40m
2026-06-09 CFS7650 UKI → SMF Jun 9, 00:35 UTCJun 9, 01:05 UTC30m

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 N976FE page for operator, model, and routing details .

Mode-S AD9A71 frequently asked

What is Mode-S code AD9A71?
AD9A71 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N976FE.
Where is Mode-S AD9A71 registered?
Mode-S code AD9A71 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 AD9A71 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 00:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD9A71, octal 53315161, decimal 11,377,265.
What flights does AD9A71 operate?
Mode-S AD9A71 has broadcast 19 distinct callsigns, including CFS7650, CFS8650, CFS8675, CFS7675, CFS7697.