Apparatus

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sensors Mode-S transponder

A98057

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N711FX · CESSNA 208 Caravan · operated by FEDERAL EXPRESS CORPORATION

Hex
A98057
Octal
52300127
Decimal
11,108,439
Country
US
Tail
N711FX
Type
C208
No current signal · last broadcast Jul 17, 21:50 UTC
Flights observed
118
Distinct callsigns
14
Country
US
Last broadcast
Jul 17, 21:50 UTC

Last known position

Most recent position reported by Mode-S A98057.

Country allocation

The ICAO 24-bit address A98057 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 14 distinct

Callsign Airline Flights Last seen
CFS7676 Empire Airlines 19 2026-05-13
CFS8676 Empire Airlines 17 2026-05-13
CFS8664 - 17 2026-07-03
CFS4664 - 17 2026-07-03
CFS8661 Empire Airlines 16 2026-06-05
CFS7661 Empire Airlines 14 2026-06-05
CFS8735 - 6 2026-07-17
CFS7735 - 5 2026-07-16
CFS8961 Empire Airlines 2 2026-05-04
CFS8967 - 1 2026-07-08
CFS4967 - 1 2026-07-08
CFS4961 Empire Airlines 1 2026-05-04
CFS4735 - 1 2026-07-17
CFS4661 Empire Airlines 1 2026-05-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 CFS4735 ENA → ANC Jul 17, 21:20 UTCJul 17, 21:44 UTC25m
2026-07-17 CFS8735 ANC → ENA Jul 17, 18:40 UTCJul 17, 19:15 UTC35m
2026-07-16 CFS7735 - Jul 16, 20:49 UTCJul 16, 21:25 UTC35m
2026-07-16 CFS8735 - Jul 16, 18:19 UTCJul 16, 18:40 UTC20m
2026-07-15 CFS7735 - Jul 15, 20:50 UTCJul 15, 21:20 UTC30m
2026-07-15 CFS8735 - Jul 15, 19:00 UTCJul 15, 19:25 UTC25m
2026-07-14 CFS7735 - Jul 14, 21:10 UTCJul 14, 21:50 UTC40m
2026-07-14 CFS8735 - Jul 14, 18:15 UTCJul 14, 18:35 UTC20m
2026-07-13 CFS7735 - Jul 13, 21:55 UTCJul 13, 22:20 UTC25m
2026-07-13 CFS8735 ANC → ENA Jul 13, 19:00 UTCJul 13, 19:25 UTC25m
2026-07-08 CFS4967 - Jul 8, 20:20 UTCJul 8, 21:20 UTC1h 0m
2026-07-08 CFS8967 - Jul 8, 19:00 UTCJul 8, 19:40 UTC40m
2026-07-03 CFS4664 ENA → ANC Jul 3, 18:05 UTCJul 3, 18:25 UTC20m
2026-07-03 CFS8664 ANC → ENA Jul 3, 17:00 UTCJul 3, 17:25 UTC25m
2026-07-02 CFS4664 ENA → ANC Jul 2, 18:10 UTCJul 2, 18:35 UTC25m
2026-07-02 CFS8664 ANC → ENA Jul 2, 17:00 UTCJul 2, 17:20 UTC20m
2026-07-01 CFS4664 - Jul 1, 18:25 UTCJul 1, 18:45 UTC20m
2026-07-01 CFS8664 ANC → ENA Jul 1, 17:05 UTCJul 1, 17:25 UTC20m
2026-06-30 CFS4664 ENA → ANC Jun 30, 18:00 UTCJun 30, 18:40 UTC40m
2026-06-30 CFS8664 - Jun 30, 17:00 UTCJun 30, 17:20 UTC20m
2026-06-24 CFS7735 ENA → ANC Jun 24, 21:14 UTCJun 24, 21:50 UTC35m
2026-06-24 CFS8735 ANC → ENA Jun 24, 18:50 UTCJun 24, 19:15 UTC25m
2026-06-19 CFS4664 ENA → ANC Jun 19, 18:20 UTCJun 19, 18:49 UTC30m
2026-06-19 CFS8664 - Jun 19, 16:49 UTCJun 19, 17:14 UTC25m
2026-06-18 CFS4664 ENA → ANC Jun 18, 18:05 UTCJun 18, 18:30 UTC25m
2026-06-18 CFS8664 ANC → ENA Jun 18, 16:55 UTCJun 18, 17:21 UTC26m
2026-06-17 CFS4664 ENA → ANC Jun 17, 18:10 UTCJun 17, 18:35 UTC25m
2026-06-17 CFS8664 ANC → ENA Jun 17, 16:55 UTCJun 17, 17:20 UTC25m
2026-06-16 CFS4664 ENA → ANC Jun 16, 18:05 UTCJun 16, 18:35 UTC30m
2026-06-16 CFS8664 - Jun 16, 17:05 UTCJun 16, 17:24 UTC20m
2026-06-16 CFS8664 ANC → ANC Jun 16, 16:39 UTCJun 16, 16:55 UTC15m
2026-06-12 CFS4664 ENA → ANC Jun 12, 17:25 UTCJun 12, 19:35 UTC2h 10m
2026-06-11 CFS4664 ENA → ANC Jun 11, 18:20 UTCJun 11, 18:50 UTC30m
2026-06-11 CFS8664 ANC → ENA Jun 11, 17:00 UTCJun 11, 17:20 UTC20m
2026-06-10 CFS4664 ENA → ANC Jun 10, 18:10 UTCJun 10, 18:35 UTC25m
2026-06-10 CFS8664 ANC → ENA Jun 10, 17:00 UTCJun 10, 17:20 UTC20m
2026-06-09 CFS4664 ENA → ANC Jun 9, 20:20 UTCJun 9, 21:00 UTC40m
2026-06-09 CFS8664 ANC → ENA Jun 9, 18:30 UTCJun 9, 19:25 UTC55m
2026-06-05 CFS7661 ENA → ANC Jun 5, 21:05 UTCJun 5, 21:35 UTC30m
2026-06-05 CFS8661 ANC → ENA Jun 5, 18:30 UTCJun 5, 18:50 UTC20m
2026-06-04 CFS7661 ENA → ANC Jun 4, 21:05 UTCJun 4, 21:35 UTC30m
2026-06-04 CFS8661 ANC → ENA Jun 4, 18:20 UTCJun 4, 18:40 UTC20m
2026-06-04 CFS8661 ANC → ENA Jun 4, 18:05 UTCJun 4, 18:10 UTC5m
2026-06-03 CFS7661 ENA → ANC Jun 3, 20:45 UTCJun 3, 21:15 UTC30m
2026-06-03 CFS8661 ANC → ENA Jun 3, 18:05 UTCJun 3, 18:25 UTC20m
2026-06-02 CFS7661 ENA → ANC Jun 2, 20:40 UTCJun 2, 21:20 UTC40m
2026-06-02 CFS8661 ANC → ENA Jun 2, 18:05 UTCJun 2, 18:30 UTC25m
2026-06-01 CFS7661 ENA → ANC Jun 1, 20:50 UTCJun 1, 21:25 UTC35m
2026-06-01 CFS8661 ANC → ENA Jun 1, 17:55 UTCJun 1, 18:20 UTC25m
2026-05-29 CFS7661 ENA → ANC May 29, 21:15 UTCMay 29, 21:55 UTC40m

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 N711FX page for operator, model, and routing details .

Mode-S A98057 frequently asked

What is Mode-S code A98057?
A98057 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N711FX.
Where is Mode-S A98057 registered?
Mode-S code A98057 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 A98057 broadcasting right now?
No active broadcast right now. Last signal was Jul 17, 21:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A98057, octal 52300127, decimal 11,108,439.
What flights does A98057 operate?
Mode-S A98057 has broadcast 14 distinct callsigns, including CFS7676, CFS8676, CFS8664, CFS4664, CFS8661.