Apparatus

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sensors Mode-S transponder

ACF8BD

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N935FD · BOEING 757-200 · operated by FEDERAL EXPRESS CORP

Hex
ACF8BD
Octal
53174275
Decimal
11,335,869
Country
US
Tail
N935FD
Type
B752
No current signal · last broadcast 20d ago
Flights observed
114
Distinct callsigns
20
Country
US
Last broadcast
20d ago

Last known position

Most recent position reported by Mode-S ACF8BD.

Country allocation

The ICAO 24-bit address ACF8BD 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
FDX1767 FedEx Express 6 2026-04-29
FDX313 FedEx Express 4 2026-05-27
FDX1777 FedEx Express 4 2026-06-10
FDX1211 FedEx Express 4 2026-06-11
FDX1770 FedEx Express 3 2026-04-15
FDX1677 FedEx Express 3 2026-06-05
FDX1493 FedEx Express 3 2026-05-16
FDX1464 FedEx Express 3 2026-06-04
FDX1374 FedEx Express 3 2026-04-21
FDX1362 - 3 2026-06-20
FDX1332 - 3 2026-06-26
FDX1316 FedEx Express 3 2026-04-18
FDX380 FedEx Express 2 2026-05-20
FDX1780 FedEx Express 2 2026-06-03
FDX1757 FedEx Express 2 2026-05-12
FDX1727 FedEx Express 2 2026-06-09
FDX1667 FedEx Express 2 2026-04-30
FDX1662 FedEx Express 2 2026-06-10
FDX1661 FedEx Express 2 2026-04-16
FDX1582 - 2 2026-06-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-27 FDX9040 - Jun 27, 14:20 UTCJun 27, 15:05 UTC45m
2026-06-27 FDX155 - Jun 27, 01:15 UTCJun 27, 03:49 UTC2h 35m
2026-06-26 FDX156 - Jun 26, 09:45 UTCJun 26, 11:49 UTC2h 5m
2026-06-26 FDX1332 - Jun 26, 02:09 UTCJun 26, 04:00 UTC1h 50m
2026-06-25 FDX1487 - Jun 25, 09:14 UTCJun 25, 11:10 UTC1h 55m
2026-06-25 FDX1353 - Jun 25, 02:39 UTCJun 25, 04:29 UTC1h 50m
2026-06-24 FDX1582 - Jun 24, 09:15 UTCJun 24, 10:19 UTC1h 5m
2026-06-24 FDX1353 - Jun 24, 02:34 UTCJun 24, 04:20 UTC1h 45m
2026-06-23 FDX1582 - Jun 23, 09:29 UTCJun 23, 10:35 UTC1h 5m
2026-06-23 FDX1291 - Jun 23, 01:25 UTCJun 23, 04:19 UTC2h 55m
2026-06-20 FDX1491 - Jun 20, 08:55 UTCJun 20, 10:59 UTC2h 5m
2026-06-20 FDX1362 - Jun 20, 03:19 UTCJun 20, 04:04 UTC45m
2026-06-20 FDX1362 TYS → MEM Jun 20, 03:15 UTCJun 20, 04:10 UTC55m
2026-06-20 FDX1362 - Jun 20, 01:34 UTCJun 20, 02:14 UTC40m
2026-06-19 FDX1451 - Jun 19, 09:30 UTCJun 19, 10:35 UTC1h 5m
2026-06-19 FDX1451 MEM → ROA Jun 19, 09:24 UTCJun 19, 10:34 UTC1h 10m
2026-06-17 FDX1558 - Jun 17, 11:55 UTCJun 17, 13:15 UTC1h 20m
2026-06-17 FDX1558 - Jun 17, 09:30 UTCJun 17, 10:35 UTC1h 5m
2026-06-17 FDX2324 BNA → MEM Jun 17, 04:20 UTCJun 17, 05:00 UTC40m
2026-06-11 FDX1498 MEM → BNA Jun 11, 09:50 UTCJun 11, 10:25 UTC35m
2026-06-11 FDX1211 DSM → MEM Jun 11, 02:10 UTCJun 11, 03:30 UTC1h 20m
2026-06-10 FDX1777 IND → CID Jun 10, 10:15 UTCJun 10, 10:35 UTC20m
2026-06-10 FDX1777 IND → CID Jun 10, 08:30 UTCJun 10, 09:20 UTC50m
2026-06-10 FDX1662 JAX → IND Jun 10, 02:10 UTCJun 10, 03:55 UTC1h 45m
2026-06-09 FDX1727 IND → ORD Jun 9, 08:10 UTCJun 9, 09:40 UTC1h 30m
2026-06-05 FDX1677 LAX → IND Jun 5, 04:00 UTCJun 5, 04:50 UTC50m
2026-06-05 FDX1677 LAX → IND Jun 5, 03:59 UTCJun 5, 04:50 UTC51m
2026-06-04 FDX1464 MEM → CID Jun 4, 09:45 UTCJun 4, 10:50 UTC1h 5m
2026-06-04 FDX1310 SWF → MEM Jun 4, 01:35 UTCJun 4, 03:35 UTC2h 0m
2026-06-03 FDX1780 SWF → MDT Jun 3, 08:41 UTCJun 3, 10:14 UTC1h 33m
2026-06-03 FDX1780 SWF → MDT Jun 3, 08:45 UTCJun 3, 10:15 UTC1h 30m
2026-06-02 FDX1606 ORD → IND Jun 2, 02:30 UTCJun 2, 03:15 UTC45m
2026-05-30 FDX1469 MEM → FNT May 30, 08:55 UTCMay 30, 10:25 UTC1h 30m
2026-05-30 FDX1469 MEM → FNT May 30, 08:52 UTCMay 30, 10:25 UTC1h 33m
2026-05-30 FDX1288 BHM → MEM May 30, 03:30 UTCMay 30, 04:00 UTC30m
2026-05-29 FDX1488 CHA → BHM May 29, 09:35 UTCMay 29, 10:10 UTC35m
2026-05-29 FDX1225 PDX → MEM May 29, 03:40 UTCMay 29, 04:25 UTC45m
2026-05-28 FDX1152 AFW → STL May 28, 09:05 UTCMay 28, 10:25 UTC1h 20m
2026-05-28 FDX1103 PHX → AFW May 28, 03:20 UTCMay 28, 05:20 UTC2h 0m
2026-05-27 FDX1153 AFW → ATL May 27, 09:50 UTCMay 27, 12:00 UTC2h 10m
2026-05-27 FDX1103 PHX → AFW May 27, 04:39 UTCMay 27, 06:40 UTC2h 0m
2026-05-27 FDX313 MEM → PHL May 27, 01:39 UTCMay 27, 02:59 UTC1h 20m
2026-05-27 FDX313 MEM → PHL May 27, 00:25 UTCMay 27, 00:30 UTC5m
2026-05-26 FDX313 MEM → PHL May 26, 20:00 UTCMay 26, 22:50 UTC2h 50m
2026-05-26 FDX313 MEM → PHL May 26, 19:58 UTCMay 26, 22:45 UTC2h 47m
2026-05-26 FDX155 MEM → ANC May 26, 00:54 UTCMay 26, 03:25 UTC2h 30m
2026-05-25 FDX156 MEM → YOW May 25, 06:55 UTCMay 25, 08:55 UTC2h 0m
2026-05-22 FDX1332 COS → MEM May 22, 03:15 UTCMay 22, 05:00 UTC1h 45m
2026-05-22 FDX1332 COS → MEM May 22, 03:16 UTCMay 22, 05:05 UTC1h 49m
2026-05-21 FDX1487 MEM → COS May 21, 09:50 UTCMay 21, 11:45 UTC1h 55m

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 N935FD page for operator, model, and routing details .

Mode-S ACF8BD frequently asked

What is Mode-S code ACF8BD?
ACF8BD is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N935FD.
Where is Mode-S ACF8BD registered?
Mode-S code ACF8BD 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 ACF8BD broadcasting right now?
No active broadcast right now. Last signal was 20d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACF8BD, octal 53174275, decimal 11,335,869.
What flights does ACF8BD operate?
Mode-S ACF8BD has broadcast 20 distinct callsigns, including FDX1767, FDX313, FDX1777, FDX1211, FDX1770.