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sensors Mode-S transponder

AD3528

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N950FD · BOEING 757-200 · operated by FEDERAL EXPRESS CORP

Hex
AD3528
Octal
53232450
Decimal
11,351,336
Country
US
Tail
N950FD
Type
B752
Broadcasting now · callsign FDX1491 · 35,000 ft
Flights observed
134
Distinct callsigns
20
Country
US
Last broadcast
14m ago

Current position

AD3528 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AD3528 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
FDX1558 FedEx Express 7 2026-05-23
FDX1889 FedEx Express 5 2026-06-02
FDX1757 - 4 2026-06-26
FDX1457 - 4 2026-07-11
FDX1441 FedEx Express 4 2026-04-30
FDX1332 FedEx Express 4 2026-06-17
FDX1329 FedEx Express 4 2026-06-06
FDX1310 - 4 2026-07-07
FDX1270 FedEx Express 4 2026-05-01
FDX1839 FedEx Express 3 2026-06-02
FDX1780 - 3 2026-07-03
FDX1539 FedEx Express 3 2026-05-21
FDX1481 FedEx Express 3 2026-05-14
FDX1477 FedEx Express 3 2026-06-05
FDX1428 - 3 2026-06-18
FDX1339 FedEx Express 3 2026-05-22
FDX1333 FedEx Express 3 2026-06-10
FDX1320 - 3 2026-07-14
FDX1305 - 3 2026-06-18
FDX1245 FedEx Express 3 2026-05-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 FDX1491 - Jul 14, 08:55 UTCJul 14, 10:00 UTC1h 5m
2026-07-14 FDX1320 - Jul 14, 03:05 UTCJul 14, 03:45 UTC40m
2026-07-11 FDX1457 - Jul 11, 09:50 UTCJul 11, 10:30 UTC40m
2026-07-11 FDX1320 - Jul 11, 03:55 UTCJul 11, 04:30 UTC35m
2026-07-10 FDX1457 AWM → SGF Jul 10, 09:45 UTCJul 10, 10:25 UTC40m
2026-07-10 FDX1288 - Jul 10, 03:20 UTCJul 10, 04:00 UTC40m
2026-07-09 FDX1488 - Jul 9, 09:35 UTCJul 9, 10:10 UTC35m
2026-07-09 FDX1316 - Jul 9, 02:10 UTCJul 9, 04:15 UTC2h 5m
2026-07-08 FDX1442 - Jul 8, 08:50 UTCJul 8, 10:35 UTC1h 45m
2026-07-07 FDX1310 - Jul 7, 02:35 UTCJul 7, 04:45 UTC2h 10m
2026-07-07 FDX1310 SWF → MEM Jul 7, 02:30 UTCJul 7, 04:45 UTC2h 15m
2026-07-03 FDX1780 - Jul 3, 08:30 UTCJul 3, 09:45 UTC1h 15m
2026-07-02 FDX1662 JAX → IND Jul 2, 03:55 UTCJul 2, 05:20 UTC1h 25m
2026-07-02 FDX1662 JAX → IND Jul 2, 03:55 UTCJul 2, 05:26 UTC1h 31m
2026-07-01 FDX1727 - Jul 1, 08:05 UTCJul 1, 09:30 UTC1h 25m
2026-07-01 FDX2640 BNA → IND Jul 1, 02:35 UTCJul 1, 03:20 UTC45m
2026-06-26 FDX1757 - Jun 26, 11:00 UTCJun 26, 12:14 UTC1h 15m
2026-06-26 FDX1757 - Jun 26, 08:20 UTCJun 26, 09:55 UTC1h 35m
2026-06-26 FDX1667 - Jun 26, 02:50 UTCJun 26, 04:20 UTC1h 30m
2026-06-26 FDX1667 - Jun 26, 00:24 UTCJun 26, 00:50 UTC25m
2026-06-25 FDX1767 - Jun 25, 11:25 UTCJun 25, 11:54 UTC30m
2026-06-25 FDX1767 - Jun 25, 08:55 UTCJun 25, 09:59 UTC1h 5m
2026-06-25 FDX1606 - Jun 25, 02:39 UTCJun 25, 03:20 UTC40m
2026-06-24 FDX1469 - Jun 24, 09:05 UTCJun 24, 10:25 UTC1h 20m
2026-06-24 FDX1211 - Jun 24, 03:15 UTCJun 24, 04:15 UTC1h 0m
2026-06-24 FDX1211 DSM → CID Jun 24, 02:00 UTCJun 24, 02:24 UTC25m
2026-06-23 FDX1777 - Jun 23, 11:04 UTCJun 23, 11:29 UTC25m
2026-06-23 FDX1777 - Jun 23, 09:29 UTCJun 23, 10:19 UTC50m
2026-06-23 FDX1615 - Jun 23, 00:39 UTCJun 23, 02:09 UTC1h 30m
2026-06-18 FDX1428 - Jun 18, 08:20 UTCJun 18, 10:05 UTC1h 45m
2026-06-18 FDX1428 MEM → PHL Jun 18, 08:18 UTCJun 18, 10:06 UTC1h 48m
2026-06-18 FDX1305 - Jun 18, 04:45 UTCJun 18, 05:55 UTC1h 10m
2026-06-18 FDX1305 ICT → MEM Jun 18, 04:43 UTCJun 18, 05:55 UTC1h 12m
2026-06-17 FDX1559 - Jun 17, 09:25 UTCJun 17, 09:50 UTC25m
2026-06-17 FDX1559 - Jun 17, 07:30 UTCJun 17, 08:25 UTC55m
2026-06-17 FDX1332 COS → MEM Jun 17, 02:05 UTCJun 17, 04:25 UTC2h 20m
2026-06-17 FDX1332 COS → MEM Jun 17, 02:05 UTCJun 17, 04:18 UTC2h 13m
2026-06-16 FDX1487 - Jun 16, 09:04 UTCJun 16, 11:05 UTC2h 0m
2026-06-14 FDX853 SEA → MEM Jun 14, 12:45 UTCJun 14, 14:20 UTC1h 35m
2026-06-12 FDX1487 MEM → COS Jun 12, 09:55 UTCJun 12, 11:55 UTC2h 0m
2026-06-12 FDX1362 ROA → MEM Jun 12, 01:45 UTCJun 12, 03:10 UTC1h 25m
2026-06-11 FDX1451 MEM → ROA Jun 11, 09:35 UTCJun 11, 10:50 UTC1h 15m
2026-06-11 FDX1317 LRD → MEM Jun 11, 01:25 UTCJun 11, 02:35 UTC1h 10m
2026-06-10 FDX1500 CID → DSM Jun 10, 12:25 UTCJun 10, 13:20 UTC55m
2026-06-10 FDX1500 CID → DSM Jun 10, 09:35 UTCJun 10, 10:40 UTC1h 5m
2026-06-10 FDX1333 BMI → MEM Jun 10, 03:25 UTCJun 10, 04:25 UTC1h 0m
2026-06-09 FDX1512 MEM → BMI Jun 9, 09:55 UTCJun 9, 10:45 UTC50m
2026-06-06 FDX1329 ATW → MEM Jun 6, 02:50 UTCJun 6, 04:35 UTC1h 45m
2026-06-06 FDX1329 ATW → MEM Jun 6, 01:05 UTCJun 6, 02:10 UTC1h 5m
2026-06-05 FDX1477 MEM → MSN Jun 5, 09:20 UTCJun 5, 10:45 UTC1h 25m

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 N950FD page for operator, model, and routing details .

Mode-S AD3528 frequently asked

What is Mode-S code AD3528?
AD3528 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N950FD.
Where is Mode-S AD3528 registered?
Mode-S code AD3528 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 AD3528 broadcasting right now?
Yes. Mode-S AD3528 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD3528, octal 53232450, decimal 11,351,336.
What flights does AD3528 operate?
Mode-S AD3528 has broadcast 20 distinct callsigns, including FDX1558, FDX1889, FDX1757, FDX1457, FDX1441.