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sensors Mode-S transponder

A0EC20

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N159FE · BOEING 767-300 · operated by FEDERAL EXPRESS CORP

Hex
A0EC20
Octal
50166040
Decimal
10,546,208
Country
US
Tail
N159FE
Type
B763
No current signal · last broadcast Jul 25, 10:50 UTC
Flights observed
197
Distinct callsigns
20
Country
US
Last broadcast
Jul 25, 10:50 UTC

Last known position

Most recent position reported by Mode-S A0EC20.

Country allocation

The ICAO 24-bit address A0EC20 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
FDX540 FedEx Express 6 2026-07-23
FDX82 FedEx Express 5 2026-06-10
FDX1476 - 5 2026-07-07
FDX1219 FedEx Express 5 2026-07-24
FDX1208 - 5 2026-07-08
FDX265 - 4 2026-07-03
FDX141 FedEx Express 4 2026-04-18
FDX1359 FedEx Express 4 2026-07-21
FDX795 FedEx Express 3 2026-05-18
FDX653 FedEx Express 3 2026-05-17
FDX605 FedEx Express 3 2026-04-26
FDX1542 - 3 2026-07-17
FDX1490 - 3 2026-07-18
FDX1419 - 3 2026-07-03
FDX140 FedEx Express 3 2026-04-17
FDX1247 FedEx Express 3 2026-07-25
FDX1221 FedEx Express 3 2026-07-22
FDX89 - 2 2026-06-23
FDX830 FedEx Express 2 2026-07-23
FDX65 FedEx Express 2 2026-06-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 FDX1401 MEM → DFW Jul 25, 09:45 UTCJul 25, 10:45 UTC1h 0m
2026-07-25 FDX1247 ORD → MEM Jul 25, 04:15 UTCJul 25, 05:25 UTC1h 10m
2026-07-24 FDX1405 MEM → ORD Jul 24, 09:25 UTCJul 24, 10:45 UTC1h 20m
2026-07-24 FDX1219 SJC → MEM Jul 24, 02:00 UTCJul 24, 05:40 UTC3h 40m
2026-07-23 FDX540 MEM → SJC Jul 23, 20:05 UTCJul 23, 23:35 UTC3h 30m
2026-07-23 FDX540 MEM → SJC Jul 23, 20:01 UTCJul 23, 23:35 UTC3h 34m
2026-07-23 FDX830 MCO → MEM Jul 23, 11:50 UTCJul 23, 13:15 UTC1h 25m
2026-07-23 FDX830 MCO → MEM Jul 23, 11:45 UTCJul 23, 13:18 UTC1h 33m
2026-07-23 FDX1458 - Jul 23, 09:00 UTCJul 23, 10:25 UTC1h 25m
2026-07-23 FDX1358 MSP → MEM Jul 23, 02:30 UTCJul 23, 04:00 UTC1h 30m
2026-07-22 FDX798 MEM → MSP Jul 22, 21:50 UTCJul 22, 23:25 UTC1h 35m
2026-07-22 FDX1221 ATL → MEM Jul 22, 05:10 UTCJul 22, 05:25 UTC15m
2026-07-22 FDX1221 ATL → MEM Jul 22, 05:10 UTCJul 22, 06:08 UTC58m
2026-07-21 FDX1463 - Jul 21, 09:10 UTCJul 21, 10:00 UTC50m
2026-07-21 FDX1359 FAT → SBD Jul 21, 02:35 UTCJul 21, 06:00 UTC3h 25m
2026-07-21 FDX1359 FAT → SBD Jul 21, 00:30 UTCJul 21, 01:10 UTC40m
2026-07-18 FDX1490 - Jul 18, 14:15 UTCJul 18, 14:45 UTC30m
2026-07-18 FDX1490 RNO → FAT Jul 18, 14:14 UTCJul 18, 14:50 UTC36m
2026-07-18 FDX1490 - Jul 18, 09:40 UTCJul 18, 12:25 UTC2h 45m
2026-07-18 FDX1224 - Jul 18, 01:54 UTCJul 18, 03:30 UTC1h 36m
2026-07-17 FDX1542 - Jul 17, 09:25 UTCJul 17, 10:55 UTC1h 30m
2026-07-17 FDX68 MTY → MEM Jul 17, 02:50 UTCJul 17, 04:39 UTC1h 50m
2026-07-16 FDX67 - Jul 16, 09:30 UTCJul 16, 11:30 UTC2h 0m
2026-07-16 FDX1359 - Jul 16, 02:15 UTCJul 16, 05:30 UTC3h 15m
2026-07-16 FDX1359 - Jul 16, 00:20 UTCJul 16, 01:00 UTC40m
2026-07-15 FDX1573 MEV → FAT Jul 15, 13:15 UTCJul 15, 13:45 UTC30m
2026-07-15 FDX1573 - Jul 15, 08:45 UTCJul 15, 11:25 UTC2h 40m
2026-07-14 FDX1207 - Jul 14, 02:05 UTCJul 14, 05:45 UTC3h 40m
2026-07-14 FDX1207 OAK → SJC Jul 14, 00:00 UTCJul 14, 00:20 UTC20m
2026-07-09 FDX568 - Jul 9, 20:50 UTCJul 10, 00:35 UTC3h 45m
2026-07-09 FDX254 - Jul 9, 14:05 UTCJul 9, 16:30 UTC2h 25m
2026-07-09 FDX53 - Jul 9, 09:30 UTCJul 9, 11:40 UTC2h 10m
2026-07-09 FDX1312 - Jul 9, 03:25 UTCJul 9, 05:05 UTC1h 40m
2026-07-08 FDX1416 - Jul 8, 08:55 UTCJul 8, 10:20 UTC1h 25m
2026-07-08 FDX1208 - Jul 8, 02:05 UTCJul 8, 05:25 UTC3h 20m
2026-07-07 FDX302 - Jul 7, 21:15 UTCJul 8, 00:45 UTC3h 30m
2026-07-07 FDX402 GEG → MEM Jul 7, 14:25 UTCJul 7, 17:36 UTC3h 11m
2026-07-07 FDX402 - Jul 7, 14:25 UTCJul 7, 17:55 UTC3h 30m
2026-07-07 FDX1476 - Jul 7, 09:05 UTCJul 7, 12:20 UTC3h 15m
2026-07-07 FDX1261 - Jul 7, 01:20 UTCJul 7, 03:05 UTC1h 45m
2026-07-07 FDX1261 MIA → MEM Jul 7, 01:20 UTCJul 7, 03:08 UTC1h 48m
2026-07-05 FDX303 - Jul 5, 21:35 UTCJul 5, 23:20 UTC1h 45m
2026-07-03 FDX265 - Jul 3, 20:10 UTCJul 4, 04:20 UTC8h 10m
2026-07-03 FDX1419 - Jul 3, 07:55 UTCJul 3, 11:35 UTC3h 40m
2026-07-03 FDX1419 MEM → OAK Jul 3, 07:50 UTCJul 3, 11:30 UTC3h 40m
2026-07-03 FDX1315 - Jul 3, 02:00 UTCJul 3, 04:10 UTC2h 10m
2026-07-02 FDX916 - Jul 2, 21:40 UTCJul 2, 23:35 UTC1h 55m
2026-07-02 FDX400 - Jul 2, 13:50 UTCJul 2, 17:15 UTC3h 25m
2026-07-02 FDX1419 - Jul 2, 07:55 UTCJul 2, 11:30 UTC3h 35m
2026-07-02 FDX1378 - Jul 2, 02:20 UTCJul 2, 03:30 UTC1h 10m

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 N159FE page for operator, model, and routing details .

Mode-S A0EC20 frequently asked

What is Mode-S code A0EC20?
A0EC20 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N159FE.
Where is Mode-S A0EC20 registered?
Mode-S code A0EC20 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 A0EC20 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 10:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A0EC20, octal 50166040, decimal 10,546,208.
What flights does A0EC20 operate?
Mode-S A0EC20 has broadcast 20 distinct callsigns, including FDX540, FDX82, FDX1476, FDX1219, FDX1208.