Apparatus

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sensors Mode-S transponder

ACD13E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N925FD · BOEING 757-200 · operated by FEDERAL EXPRESS CORP

Hex
ACD13E
Octal
53150476
Decimal
11,325,758
Country
US
Tail
N925FD
Type
B752
No current signal · last broadcast 13h ago
Flights observed
131
Distinct callsigns
20
Country
US
Last broadcast
13h ago

Last known position

Most recent position reported by Mode-S ACD13E.

Country allocation

The ICAO 24-bit address ACD13E 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
FDX1662 - 6 2026-07-10
FDX1777 FedEx Express 5 2026-05-19
FDX1767 - 5 2026-06-26
FDX1757 - 5 2026-07-08
FDX1727 - 5 2026-07-09
FDX1211 FedEx Express 5 2026-05-20
FDX1736 FedEx Express 3 2026-06-30
FDX1521 - 3 2026-07-15
FDX1469 - 3 2026-06-27
FDX1316 - 3 2026-07-17
FDX1123 FedEx Express 3 2026-04-17
FDX375 - 2 2026-07-12
FDX2640 - 2 2026-07-09
FDX2619 FedEx Express 2 2026-06-10
FDX1716 FedEx Express 2 2026-05-27
FDX1702 - 2 2026-07-10
FDX1677 FedEx Express 2 2026-05-22
FDX1667 FedEx Express 2 2026-06-03
FDX1636 - 2 2026-07-07
FDX1619 FedEx Express 2 2026-05-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 FDX1474 - Jul 17, 09:20 UTCJul 17, 10:20 UTC1h 0m
2026-07-17 FDX1474 MEM → DAY Jul 17, 09:16 UTCJul 17, 10:15 UTC59m
2026-07-17 FDX1316 - Jul 17, 02:05 UTCJul 17, 04:10 UTC2h 5m
2026-07-16 FDX1442 - Jul 16, 08:35 UTCJul 16, 10:35 UTC2h 0m
2026-07-16 FDX1321 - Jul 16, 02:45 UTCJul 16, 04:15 UTC1h 30m
2026-07-15 FDX1521 - Jul 15, 09:40 UTCJul 15, 11:00 UTC1h 20m
2026-07-15 FDX1521 MEM → FSD Jul 15, 09:35 UTCJul 15, 11:04 UTC1h 29m
2026-07-15 FDX1323 - Jul 15, 03:05 UTCJul 15, 04:10 UTC1h 5m
2026-07-14 FDX985 - Jul 14, 23:25 UTCJul 15, 00:35 UTC1h 10m
2026-07-14 FDX885 - Jul 14, 13:00 UTCJul 14, 14:05 UTC1h 5m
2026-07-14 FDX1585 - Jul 14, 11:00 UTCJul 14, 12:00 UTC1h 0m
2026-07-12 FDX375 - Jul 12, 14:45 UTCJul 12, 15:30 UTC45m
2026-07-12 FDX375 SDF → MEM Jul 12, 14:41 UTCJul 12, 15:30 UTC49m
2026-07-11 FDX1558 - Jul 11, 12:20 UTCJul 11, 13:35 UTC1h 15m
2026-07-11 FDX1558 - Jul 11, 09:45 UTCJul 11, 11:00 UTC1h 15m
2026-07-11 FDX1322 - Jul 11, 03:15 UTCJul 11, 04:45 UTC1h 30m
2026-07-10 FDX1702 - Jul 10, 08:50 UTCJul 10, 09:25 UTC35m
2026-07-10 FDX1662 - Jul 10, 02:00 UTCJul 10, 03:35 UTC1h 35m
2026-07-10 FDX1662 JAX → IND Jul 10, 02:00 UTCJul 10, 03:30 UTC1h 30m
2026-07-09 FDX1727 - Jul 9, 08:05 UTCJul 9, 09:35 UTC1h 30m
2026-07-09 FDX2640 - Jul 9, 02:55 UTCJul 9, 03:30 UTC35m
2026-07-09 FDX2640 BNA → IND Jul 9, 02:53 UTCJul 9, 03:30 UTC37m
2026-07-08 FDX1757 - Jul 8, 11:05 UTCJul 8, 12:10 UTC1h 5m
2026-07-08 FDX1757 - Jul 8, 08:20 UTCJul 8, 09:50 UTC1h 30m
2026-07-08 FDX1662 - Jul 8, 02:10 UTCJul 8, 03:35 UTC1h 25m
2026-07-07 FDX1727 - Jul 7, 08:25 UTCJul 7, 09:55 UTC1h 30m
2026-07-07 FDX1636 - Jul 7, 03:25 UTCJul 7, 04:40 UTC1h 15m
2026-06-30 FDX1736 IND → MDT Jun 30, 08:50 UTCJun 30, 10:05 UTC1h 15m
2026-06-30 FDX1606 - Jun 30, 03:10 UTCJun 30, 03:50 UTC40m
2026-06-27 FDX1469 - Jun 27, 08:49 UTCJun 27, 10:05 UTC1h 15m
2026-06-27 FDX1469 MEM → FNT Jun 27, 08:45 UTCJun 27, 10:04 UTC1h 19m
2026-06-27 FDX1316 - Jun 27, 01:59 UTCJun 27, 04:05 UTC2h 5m
2026-06-27 FDX1316 - Jun 27, 00:14 UTCJun 27, 00:34 UTC20m
2026-06-26 FDX1767 - Jun 26, 11:40 UTCJun 26, 12:10 UTC30m
2026-06-26 FDX1767 - Jun 26, 08:24 UTCJun 26, 09:35 UTC1h 10m
2026-06-26 FDX1767 IND → SYR Jun 26, 08:23 UTCJun 26, 09:35 UTC1h 12m
2026-06-25 FDX1662 - Jun 25, 02:05 UTCJun 25, 03:40 UTC1h 35m
2026-06-24 FDX1727 - Jun 24, 07:59 UTCJun 24, 09:19 UTC1h 20m
2026-06-24 FDX1662 - Jun 24, 02:05 UTCJun 24, 03:40 UTC1h 35m
2026-06-23 FDX1727 - Jun 23, 08:15 UTCJun 23, 09:40 UTC1h 25m
2026-06-23 FDX1606 - Jun 23, 02:45 UTCJun 23, 03:29 UTC45m
2026-06-19 FDX1469 - Jun 19, 08:40 UTCJun 19, 09:59 UTC1h 20m
2026-06-19 FDX1320 - Jun 19, 02:59 UTCJun 19, 03:39 UTC40m
2026-06-18 FDX1457 - Jun 18, 10:10 UTCJun 18, 11:00 UTC50m
2026-06-18 FDX1293 - Jun 18, 03:40 UTCJun 18, 05:05 UTC1h 25m
2026-06-17 FDX1493 - Jun 17, 09:15 UTCJun 17, 10:45 UTC1h 30m
2026-06-17 FDX1493 MEM → RST Jun 17, 09:13 UTCJun 17, 10:41 UTC1h 28m
2026-06-17 FDX1288 - Jun 17, 03:55 UTCJun 17, 04:40 UTC45m
2026-06-16 FDX1488 - Jun 16, 09:45 UTCJun 16, 10:09 UTC25m
2026-06-16 FDX1254 - Jun 16, 01:15 UTCJun 16, 04:00 UTC2h 45m

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 N925FD page for operator, model, and routing details .

Mode-S ACD13E frequently asked

What is Mode-S code ACD13E?
ACD13E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N925FD.
Where is Mode-S ACD13E registered?
Mode-S code ACD13E 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 ACD13E broadcasting right now?
No active broadcast right now. Last signal was 13h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACD13E, octal 53150476, decimal 11,325,758.
What flights does ACD13E operate?
Mode-S ACD13E has broadcast 20 distinct callsigns, including FDX1662, FDX1777, FDX1767, FDX1757, FDX1727.