Apparatus

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sensors Mode-S transponder

ADDE49

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N993FD · BOEING 757-200 · operated by FEDERAL EXPRESS CORP

Hex
ADDE49
Octal
53357111
Decimal
11,394,633
Country
US
Tail
N993FD
Type
B752
No current signal · last broadcast 3h ago
Flights observed
129
Distinct callsigns
20
Country
US
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S ADDE49.

Country allocation

The ICAO 24-bit address ADDE49 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
FDX1539 - 8 2026-06-16
FDX1339 - 6 2026-06-17
FDX1576 - 5 2026-06-24
FDX1544 FedEx Express 5 2026-05-23
FDX1502 - 5 2026-06-23
FDX1570 FedEx Express 4 2026-06-11
FDX1481 - 4 2026-07-01
FDX1347 FedEx Express 4 2026-06-12
FDX1329 - 4 2026-06-18
FDX1231 FedEx Express 4 2026-05-27
FDX2349 - 3 2026-07-03
FDX1926 FedEx Express 3 2026-04-17
FDX1582 - 3 2026-07-10
FDX1558 - 3 2026-07-03
FDX1474 FedEx Express 3 2026-06-04
FDX1441 - 3 2026-06-25
FDX1376 - 3 2026-06-25
FDX1323 FedEx Express 3 2026-06-05
FDX1989 FedEx Express 2 2026-04-15
FDX1559 FedEx Express 2 2026-04-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 FDX1464 - Jul 14, 09:40 UTCJul 14, 10:45 UTC1h 5m
2026-07-11 FDX1305 - Jul 11, 03:30 UTCJul 11, 04:45 UTC1h 15m
2026-07-10 FDX1582 - Jul 10, 09:40 UTCJul 10, 11:00 UTC1h 20m
2026-07-10 FDX2324 - Jul 10, 04:10 UTCJul 10, 05:05 UTC55m
2026-07-08 FDX1498 - Jul 8, 09:30 UTCJul 8, 10:15 UTC45m
2026-07-08 FDX1498 MEM → BNA Jul 8, 09:29 UTCJul 8, 10:12 UTC43m
2026-07-08 FDX1333 - Jul 8, 02:55 UTCJul 8, 04:10 UTC1h 15m
2026-07-07 FDX1512 - Jul 7, 09:50 UTCJul 7, 10:35 UTC45m
2026-07-07 FDX1381 - Jul 7, 05:45 UTCJul 7, 06:35 UTC50m
2026-07-07 FDX1381 MCI → MEM Jul 7, 05:40 UTCJul 7, 06:40 UTC1h 0m
2026-07-07 FDX981 - Jul 7, 03:10 UTCJul 7, 04:05 UTC55m
2026-07-05 FDX375 - Jul 5, 14:25 UTCJul 5, 15:15 UTC50m
2026-07-03 FDX1558 - Jul 3, 12:05 UTCJul 3, 13:10 UTC1h 5m
2026-07-03 FDX1558 CHS → SDF Jul 3, 12:04 UTCJul 3, 13:06 UTC1h 2m
2026-07-03 FDX1558 - Jul 3, 09:30 UTCJul 3, 10:50 UTC1h 20m
2026-07-03 FDX2349 - Jul 3, 02:55 UTCJul 3, 04:10 UTC1h 15m
2026-07-01 FDX1481 - Jul 1, 08:35 UTCJul 1, 09:35 UTC1h 0m
2026-07-01 FDX2349 TLH → MEM Jul 1, 02:55 UTCJul 1, 03:55 UTC1h 0m
2026-07-01 FDX2349 TLH → MEM Jul 1, 02:53 UTCJul 1, 03:55 UTC1h 2m
2026-06-26 FDX1481 - Jun 26, 08:34 UTCJun 26, 09:35 UTC1h 0m
2026-06-26 FDX1270 - Jun 26, 03:54 UTCJun 26, 04:50 UTC55m
2026-06-25 FDX1441 - Jun 25, 08:45 UTCJun 25, 09:34 UTC50m
2026-06-25 FDX1441 MEM → LFT Jun 25, 08:43 UTCJun 25, 09:31 UTC48m
2026-06-25 FDX1376 - Jun 25, 02:19 UTCJun 25, 02:59 UTC40m
2026-06-24 FDX1576 - Jun 24, 09:29 UTCJun 24, 10:10 UTC40m
2026-06-24 FDX1576 MEM → CHA Jun 24, 09:29 UTCJun 24, 10:08 UTC39m
2026-06-24 FDX1302 - Jun 24, 02:54 UTCJun 24, 04:05 UTC1h 10m
2026-06-23 FDX1502 - Jun 23, 11:10 UTCJun 23, 11:24 UTC15m
2026-06-23 FDX1502 FWA → SBN Jun 23, 11:04 UTCJun 23, 11:24 UTC20m
2026-06-23 FDX1502 - Jun 23, 09:24 UTCJun 23, 10:19 UTC55m
2026-06-23 FDX1376 - Jun 23, 02:45 UTCJun 23, 03:20 UTC35m
2026-06-19 FDX1576 - Jun 19, 09:30 UTCJun 19, 10:09 UTC40m
2026-06-19 FDX1321 - Jun 19, 02:24 UTCJun 19, 03:49 UTC1h 25m
2026-06-18 FDX1521 - Jun 18, 09:35 UTCJun 18, 11:05 UTC1h 30m
2026-06-18 FDX1329 ORD → MEM Jun 18, 05:05 UTCJun 18, 06:32 UTC1h 27m
2026-06-18 FDX1329 - Jun 18, 05:05 UTCJun 18, 06:30 UTC1h 25m
2026-06-18 FDX1329 ATW → ORD Jun 18, 01:35 UTCJun 18, 02:30 UTC55m
2026-06-17 FDX1477 - Jun 17, 09:35 UTCJun 17, 11:05 UTC1h 30m
2026-06-17 FDX1339 - Jun 17, 02:10 UTCJun 17, 03:30 UTC1h 20m
2026-06-17 FDX1339 SAV → MEM Jun 17, 02:07 UTCJun 17, 03:30 UTC1h 23m
2026-06-16 FDX1539 - Jun 16, 09:10 UTCJun 16, 10:09 UTC1h 0m
2026-06-16 FDX1539 MEM → SAV Jun 16, 09:06 UTCJun 16, 10:08 UTC1h 2m
2026-06-16 FDX1269 - Jun 16, 02:00 UTCJun 16, 03:35 UTC1h 35m
2026-06-16 FDX1269 FNT → MEM Jun 16, 01:59 UTCJun 16, 03:38 UTC1h 39m
2026-06-12 FDX1469 MEM → FNT Jun 12, 09:45 UTCJun 12, 11:10 UTC1h 25m
2026-06-12 FDX1347 ALB → MEM Jun 12, 03:25 UTCJun 12, 05:35 UTC2h 10m
2026-06-11 FDX1570 MEM → ALB Jun 11, 08:40 UTCJun 11, 10:40 UTC2h 0m
2026-06-11 FDX1339 SAV → CHA Jun 11, 02:25 UTCJun 11, 03:45 UTC1h 20m
2026-06-10 FDX1539 MEM → SAV Jun 10, 09:20 UTCJun 10, 10:30 UTC1h 10m
2026-06-10 FDX1347 ALB → MEM Jun 10, 01:50 UTCJun 10, 03:55 UTC2h 5m

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 N993FD page for operator, model, and routing details .

Mode-S ADDE49 frequently asked

What is Mode-S code ADDE49?
ADDE49 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N993FD.
Where is Mode-S ADDE49 registered?
Mode-S code ADDE49 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 ADDE49 broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ADDE49, octal 53357111, decimal 11,394,633.
What flights does ADDE49 operate?
Mode-S ADDE49 has broadcast 20 distinct callsigns, including FDX1539, FDX1339, FDX1576, FDX1544, FDX1502.