Apparatus

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sensors Mode-S transponder

ACB89B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N919FD · BOEING 757-200 · operated by FEDERAL EXPRESS CORP

Hex
ACB89B
Octal
53134233
Decimal
11,319,451
Country
US
Tail
N919FD
Type
B752
No current signal · last broadcast 1d ago
Flights observed
96
Distinct callsigns
9
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S ACB89B.

Country allocation

The ICAO 24-bit address ACB89B 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 9 distinct

Callsign Airline Flights Last seen
FDX1007 FedEx Express 19 2026-05-28
FDX1005 FedEx Express 17 2026-05-28
FDX1008 FedEx Express 16 2026-05-28
FDX1006 FedEx Express 15 2026-05-28
FDX1004 FedEx Express 8 2026-05-06
FDX1003 FedEx Express 7 2026-05-06
FDX1001 FedEx Express 6 2026-05-06
FDX1002 FedEx Express 5 2026-05-06
FDX9075 FedEx Express 3 2026-04-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-28 FDX1008 ITO → HNL May 28, 23:50 UTCMay 29, 00:10 UTC20m
2026-05-28 FDX1007 ATL → EWR May 28, 21:20 UTCMay 28, 21:40 UTC20m
2026-05-28 FDX1007 ATL → EWR May 28, 21:16 UTCMay 28, 21:53 UTC37m
2026-05-28 FDX1006 ITO → HNL May 28, 15:50 UTCMay 28, 16:10 UTC20m
2026-05-28 FDX1005 HNL → ITO May 28, 13:35 UTCMay 28, 13:55 UTC20m
2026-05-27 FDX1008 ITO → HNL May 27, 23:35 UTCMay 28, 00:05 UTC30m
2026-05-27 FDX1008 ITO → HNL May 27, 23:22 UTCMay 28, 00:01 UTC39m
2026-05-27 FDX1007 ATL → EWR May 27, 21:40 UTCMay 27, 22:00 UTC20m
2026-05-27 FDX1007 ATL → EWR May 27, 21:35 UTCMay 27, 22:10 UTC35m
2026-05-27 FDX1006 ITO → HNL May 27, 15:50 UTCMay 27, 16:15 UTC25m
2026-05-27 FDX1005 HNL → ITO May 27, 13:40 UTCMay 27, 14:00 UTC20m
2026-05-26 FDX1008 ITO → HNL May 26, 23:39 UTCMay 27, 00:14 UTC35m
2026-05-26 FDX1007 ATL → EWR May 26, 20:54 UTCMay 26, 21:14 UTC20m
2026-05-26 FDX1006 ITO → HNL May 26, 15:54 UTCMay 26, 16:20 UTC25m
2026-05-26 FDX1005 HNL → ITO May 26, 13:29 UTCMay 26, 13:50 UTC20m
2026-05-21 FDX1008 ITO → HNL May 21, 23:35 UTCMay 22, 00:05 UTC30m
2026-05-21 FDX1007 ATL → EWR May 21, 21:05 UTCMay 21, 21:25 UTC20m
2026-05-21 FDX1006 ITO → HNL May 21, 15:35 UTCMay 21, 16:01 UTC25m
2026-05-21 FDX1005 HNL → ITO May 21, 13:35 UTCMay 21, 13:55 UTC20m
2026-05-19 FDX1008 ITO → HNL May 19, 23:40 UTCMay 20, 00:10 UTC30m
2026-05-19 FDX1007 ATL → EWR May 19, 21:20 UTCMay 19, 21:40 UTC20m
2026-05-19 FDX1006 ITO → HNL May 19, 15:10 UTCMay 19, 15:40 UTC30m
2026-05-19 FDX1005 HNL → ITO May 19, 13:20 UTCMay 19, 13:40 UTC20m
2026-05-15 FDX1006 ITO → HNL May 15, 15:25 UTCMay 15, 15:55 UTC30m
2026-05-15 FDX1005 HNL → ITO May 15, 13:30 UTCMay 15, 13:50 UTC20m
2026-05-14 FDX1008 ITO → HNL May 14, 23:30 UTCMay 15, 00:00 UTC30m
2026-05-14 FDX1007 ATL → EWR May 14, 21:15 UTCMay 14, 21:40 UTC25m
2026-05-14 FDX1006 ITO → HNL May 14, 15:30 UTCMay 14, 16:00 UTC30m
2026-05-14 FDX1005 HNL → ITO May 14, 13:30 UTCMay 14, 13:50 UTC20m
2026-05-13 FDX1008 ITO → HNL May 13, 23:40 UTCMay 14, 00:10 UTC30m
2026-05-13 FDX1007 ATL → EWR May 13, 21:20 UTCMay 13, 21:40 UTC20m
2026-05-13 FDX1006 ITO → HNL May 13, 16:05 UTCMay 13, 16:35 UTC30m
2026-05-13 FDX1005 HNL → ITO May 13, 13:31 UTCMay 13, 13:55 UTC25m
2026-05-08 FDX1008 ITO → HNL May 8, 23:40 UTCMay 9, 00:10 UTC30m
2026-05-08 FDX1007 ATL → EWR May 8, 21:10 UTCMay 8, 21:30 UTC20m
2026-05-08 FDX1006 ITO → HNL May 8, 16:00 UTCMay 8, 16:30 UTC30m
2026-05-08 FDX1005 HNL → ITO May 8, 14:05 UTCMay 8, 14:25 UTC20m
2026-05-07 FDX1008 ITO → HNL May 7, 23:55 UTCMay 8, 00:14 UTC20m
2026-05-07 FDX1007 ATL → EWR May 7, 22:00 UTCMay 7, 22:20 UTC20m
2026-05-07 FDX1006 ITO → HNL May 7, 16:00 UTCMay 7, 16:25 UTC25m
2026-05-07 FDX1005 HNL → ITO May 7, 13:30 UTCMay 7, 13:50 UTC20m
2026-05-06 FDX1004 DFW → EWR May 6, 23:45 UTCMay 7, 00:10 UTC25m
2026-05-06 FDX1003 HNL → OGG May 6, 22:05 UTCMay 6, 22:25 UTC20m
2026-05-06 FDX1002 OGG → HNL May 6, 16:15 UTCMay 6, 16:35 UTC20m
2026-05-06 FDX1001 HNL → OGG May 6, 14:19 UTCMay 6, 14:40 UTC21m
2026-05-06 FDX1001 HNL → OGG May 6, 14:20 UTCMay 6, 14:40 UTC20m
2026-05-04 FDX1004 DFW → EWR May 4, 23:55 UTCMay 5, 00:15 UTC20m
2026-05-04 FDX1003 HNL → OGG May 4, 21:40 UTCMay 4, 22:00 UTC20m
2026-05-04 FDX1002 OGG → HNL May 4, 17:10 UTCMay 4, 17:50 UTC40m
2026-05-04 FDX1001 HNL → OGG May 4, 14:35 UTCMay 4, 14:55 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 N919FD page for operator, model, and routing details .

Mode-S ACB89B frequently asked

What is Mode-S code ACB89B?
ACB89B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N919FD.
Where is Mode-S ACB89B registered?
Mode-S code ACB89B 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 ACB89B broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACB89B, octal 53134233, decimal 11,319,451.
What flights does ACB89B operate?
Mode-S ACB89B has broadcast 9 distinct callsigns, including FDX1007, FDX1005, FDX1008, FDX1006, FDX1004.