Apparatus

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sensors Mode-S transponder

ACA608

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N914FD · BOEING 757-200 · operated by FEDERAL EXPRESS CORP

Hex
ACA608
Octal
53123010
Decimal
11,314,696
Country
US
Tail
N914FD
Type
B752
No current signal · last broadcast 2h ago
Flights observed
76
Distinct callsigns
6
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S ACA608.

Country allocation

The ICAO 24-bit address ACA608 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 6 distinct

Callsign Airline Flights Last seen
FDX1005 FedEx Express 21 2026-05-29
FDX1006 FedEx Express 19 2026-05-29
FDX1007 FedEx Express 17 2026-05-29
FDX1008 FedEx Express 14 2026-05-29
FDX1003 FedEx Express 3 2026-05-08
FDX1004 FedEx Express 2 2026-05-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 FDX1008 ITO → HNL May 29, 23:35 UTCMay 30, 00:05 UTC30m
2026-05-29 FDX1007 ATL → EWR May 29, 21:30 UTCMay 29, 21:50 UTC20m
2026-05-29 FDX1006 ITO → HNL May 29, 15:30 UTCMay 29, 16:00 UTC30m
2026-05-29 FDX1005 HNL → ITO May 29, 13:35 UTCMay 29, 13:55 UTC20m
2026-05-29 FDX1005 HNL → ITO May 29, 13:31 UTCMay 29, 14:10 UTC39m
2026-05-22 FDX1008 ITO → HNL May 22, 23:40 UTCMay 23, 00:15 UTC35m
2026-05-22 FDX1007 ATL → EWR May 22, 21:15 UTCMay 22, 21:35 UTC20m
2026-05-22 FDX1006 ITO → HNL May 22, 15:40 UTCMay 22, 16:10 UTC30m
2026-05-22 FDX1006 ITO → HNL May 22, 15:29 UTCMay 22, 16:05 UTC36m
2026-05-22 FDX1005 HNL → ITO May 22, 13:30 UTCMay 22, 13:50 UTC20m
2026-05-20 FDX1008 ITO → HNL May 20, 23:50 UTCMay 21, 00:30 UTC40m
2026-05-20 FDX1007 ATL → EWR May 20, 21:35 UTCMay 20, 21:55 UTC20m
2026-05-20 FDX1006 ITO → HNL May 20, 15:55 UTCMay 20, 16:25 UTC30m
2026-05-20 FDX1005 HNL → ITO May 20, 13:22 UTCMay 20, 14:00 UTC38m
2026-05-20 FDX1005 HNL → ITO May 20, 13:25 UTCMay 20, 13:45 UTC20m
2026-05-18 FDX1008 ITO → HNL May 18, 23:45 UTCMay 19, 00:20 UTC35m
2026-05-18 FDX1007 ATL → EWR May 18, 21:10 UTCMay 18, 21:48 UTC38m
2026-05-18 FDX1007 ATL → EWR May 18, 21:10 UTCMay 18, 21:35 UTC25m
2026-05-18 FDX1006 ITO → HNL May 18, 16:25 UTCMay 18, 16:55 UTC30m
2026-05-18 FDX1006 ITO → HNL May 18, 16:16 UTCMay 18, 16:55 UTC39m
2026-05-18 FDX1005 HNL → ITO May 18, 13:40 UTCMay 18, 14:00 UTC20m
2026-05-15 FDX1008 ITO → HNL May 15, 23:30 UTCMay 16, 00:00 UTC30m
2026-05-15 FDX1007 ATL → EWR May 15, 21:20 UTCMay 15, 21:40 UTC20m
2026-05-13 FDX1008 ITO → HNL May 13, 00:25 UTCMay 13, 00:55 UTC30m
2026-05-12 FDX1007 ATL → EWR May 12, 21:25 UTCMay 12, 21:50 UTC25m
2026-05-12 FDX1006 ITO → HNL May 12, 15:25 UTCMay 12, 15:55 UTC30m
2026-05-12 FDX1005 HNL → ITO May 12, 13:25 UTCMay 12, 13:45 UTC20m
2026-05-11 FDX1007 ATL → EWR May 11, 21:15 UTCMay 11, 21:40 UTC25m
2026-05-11 FDX1006 ITO → HNL May 11, 16:05 UTCMay 11, 16:35 UTC30m
2026-05-11 FDX1005 HNL → ITO May 11, 13:30 UTCMay 11, 13:55 UTC25m
2026-05-11 FDX1005 HNL → ITO May 11, 13:30 UTCMay 11, 14:10 UTC40m
2026-05-08 FDX1004 DFW → EWR May 8, 23:45 UTCMay 9, 00:20 UTC35m
2026-05-08 FDX1003 HNL → OGG May 8, 21:40 UTCMay 8, 22:00 UTC20m
2026-05-08 FDX1004 DFW → EWR May 8, 00:25 UTCMay 8, 00:49 UTC25m
2026-05-07 FDX1003 HNL → OGG May 7, 22:25 UTCMay 7, 22:45 UTC20m
2026-05-07 FDX1003 HNL → OGG May 7, 22:20 UTCMay 7, 22:45 UTC25m
2026-05-06 FDX1008 ITO → HNL May 6, 23:35 UTCMay 7, 00:10 UTC35m
2026-05-06 FDX1007 ATL → EWR May 6, 21:45 UTCMay 6, 22:05 UTC20m
2026-05-06 FDX1006 ITO → HNL May 6, 15:40 UTCMay 6, 16:15 UTC35m
2026-05-06 FDX1005 HNL → ITO May 6, 13:35 UTCMay 6, 13:55 UTC20m
2026-05-05 FDX1008 ITO → HNL May 5, 23:25 UTCMay 5, 23:55 UTC30m
2026-05-05 FDX1007 ATL → EWR May 5, 21:25 UTCMay 5, 21:50 UTC25m
2026-05-05 FDX1006 ITO → HNL May 5, 15:55 UTCMay 5, 16:20 UTC25m
2026-05-05 FDX1006 ITO → HNL May 5, 15:40 UTCMay 5, 16:20 UTC40m
2026-05-05 FDX1005 HNL → ITO May 5, 13:30 UTCMay 5, 13:50 UTC20m
2026-04-29 FDX1008 ITO → HNL Apr 29, 23:40 UTCApr 30, 00:10 UTC30m
2026-04-29 FDX1007 ATL → EWR Apr 29, 21:40 UTCApr 29, 22:00 UTC20m
2026-04-29 FDX1006 ITO → HNL Apr 29, 16:05 UTCApr 29, 16:40 UTC35m
2026-04-29 FDX1006 ITO → HNL Apr 29, 15:56 UTCApr 29, 16:35 UTC39m
2026-04-29 FDX1005 HNL → ITO Apr 29, 13:30 UTCApr 29, 13:50 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.

Prefer a tail-number view? See the N914FD page for operator, model, and routing details .

Mode-S ACA608 frequently asked

What is Mode-S code ACA608?
ACA608 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N914FD.
Where is Mode-S ACA608 registered?
Mode-S code ACA608 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 ACA608 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACA608, octal 53123010, decimal 11,314,696.
What flights does ACA608 operate?
Mode-S ACA608 has broadcast 6 distinct callsigns, including FDX1005, FDX1006, FDX1007, FDX1008, FDX1003.