sensors Mode-S transponder

A0F99E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N162FE · BOEING 767-300 · operated by FEDERAL EXPRESS CORP

Hex
A0F99E
Octal
50174636
Decimal
10,549,662
Country
US
Tail
N162FE
Type
B763
No current signal · last broadcast 10h ago
Flights observed
105
Distinct callsigns
20
Country
US
Last broadcast
10h ago

Last known position

Most recent position reported by Mode-S A0F99E.

Country allocation

The ICAO 24-bit address A0F99E 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
FDX1573 FedEx Express 4 2026-05-07
FDX1415 FedEx Express 4 2026-05-13
FDX1359 FedEx Express 4 2026-05-08
FDX1542 FedEx Express 3 2026-05-27
FDX1468 FedEx Express 3 2026-04-18
FDX1385 FedEx Express 3 2026-05-16
FDX1234 FedEx Express 3 2026-05-01
FDX1203 FedEx Express 3 2026-04-18
FDX811 FedEx Express 2 2026-05-27
FDX733 FedEx Express 2 2026-05-17
FDX630 FedEx Express 2 2026-04-16
FDX619 FedEx Express 2 2026-04-14
FDX52 FedEx Express 2 2026-05-15
FDX451 FedEx Express 2 2026-05-09
FDX446 FedEx Express 2 2026-05-05
FDX3884 FedEx Express 2 2026-04-15
FDX1722 FedEx Express 2 2026-04-17
FDX1707 FedEx Express 2 2026-04-14
FDX1635 FedEx Express 2 2026-05-05
FDX1437 FedEx Express 2 2026-05-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 FDX1407 MEM → MSP May 30, 09:05 UTCMay 30, 10:35 UTC1h 30m
2026-05-30 FDX1407 MEM → MSP May 30, 09:04 UTCMay 30, 10:34 UTC1h 30m
2026-05-30 FDX1208 GEG → MEM May 30, 01:50 UTCMay 30, 05:20 UTC3h 30m
2026-05-29 FDX1476 MEM → GEG May 29, 08:40 UTCMay 29, 11:45 UTC3h 5m
2026-05-29 FDX1301 SFO → MEM May 29, 02:10 UTCMay 29, 05:40 UTC3h 30m
2026-05-28 FDX1545 MEM → SFO May 28, 08:35 UTCMay 28, 12:10 UTC3h 35m
2026-05-28 FDX1224 RIC → MEM May 28, 03:45 UTCMay 28, 05:30 UTC1h 45m
2026-05-27 FDX794 MEM → RIC May 27, 22:00 UTCMay 28, 00:00 UTC2h 0m
2026-05-27 FDX811 PHL → MEM May 27, 13:40 UTCMay 27, 15:25 UTC1h 45m
2026-05-27 FDX811 PHL → MEM May 27, 13:39 UTCMay 27, 15:25 UTC1h 46m
2026-05-27 FDX1542 MEM → RIC May 27, 09:25 UTCMay 27, 10:45 UTC1h 20m
2026-05-27 FDX1238 BUR → MEM May 27, 02:34 UTCMay 27, 03:50 UTC1h 15m
2026-05-22 FDX1437 MEM → MKE May 22, 08:50 UTCMay 22, 10:00 UTC1h 10m
2026-05-22 FDX1224 RIC → MEM May 22, 01:55 UTCMay 22, 03:30 UTC1h 35m
2026-05-21 FDX1542 MEM → RIC May 21, 09:15 UTCMay 21, 10:40 UTC1h 25m
2026-05-21 FDX1542 MEM → RIC May 21, 09:11 UTCMay 21, 10:46 UTC1h 35m
2026-05-21 FDX131 YMX → MEM May 21, 01:35 UTCMay 21, 04:10 UTC2h 35m
2026-05-20 FDX130 MEM → YMX May 20, 09:25 UTCMay 20, 11:35 UTC2h 10m
2026-05-20 FDX1346 CLE → MEM May 20, 02:35 UTCMay 20, 04:05 UTC1h 30m
2026-05-19 FDX1552 MEM → CLE May 19, 09:00 UTCMay 19, 10:20 UTC1h 20m
2026-05-19 FDX1273 BOS → MEM May 19, 02:10 UTCMay 19, 04:40 UTC2h 30m
2026-05-17 FDX733 MEM → BOS May 17, 22:01 UTCMay 18, 00:20 UTC2h 20m
2026-05-16 FDX1385 TPA → MEM May 16, 04:50 UTCMay 16, 05:56 UTC1h 6m
2026-05-16 FDX1385 TPA → MEM May 16, 04:49 UTCMay 16, 05:55 UTC1h 6m
2026-05-16 FDX1385 TPA → MEM May 16, 02:10 UTCMay 16, 03:35 UTC1h 25m
2026-05-15 FDX1585 MEM → DFW May 15, 09:40 UTCMay 15, 11:50 UTC2h 10m
2026-05-15 FDX52 SJU → MEM May 15, 03:10 UTCMay 15, 05:15 UTC2h 5m
2026-05-15 FDX52 SJU → MEM May 15, 01:20 UTCMay 15, 01:30 UTC10m
2026-05-14 FDX251 MEM → SJU May 14, 20:00 UTCMay 14, 23:25 UTC3h 25m
2026-05-14 FDX1216 PDX → MEM May 14, 01:50 UTCMay 14, 05:15 UTC3h 25m
2026-05-14 FDX1216 PDX → MEM May 14, 01:46 UTCMay 14, 05:15 UTC3h 29m
2026-05-13 FDX1415 MEM → PDX May 13, 08:20 UTCMay 13, 12:15 UTC3h 55m
2026-05-13 FDX1248 GSO → MEM May 13, 01:55 UTCMay 13, 03:15 UTC1h 20m
2026-05-13 FDX1248 GSO → MEM May 13, 01:52 UTCMay 13, 03:16 UTC1h 24m
2026-05-12 FDX1580 MEM → LAX May 12, 09:40 UTCMay 12, 10:45 UTC1h 5m
2026-05-12 FDX1273 BOS → MEM May 12, 02:45 UTCMay 12, 04:40 UTC1h 55m
2026-05-10 FDX733 MEM → BOS May 10, 22:49 UTCMay 11, 01:05 UTC2h 15m
2026-05-09 FDX451 LAX → MEM May 9, 13:05 UTCMay 9, 16:20 UTC3h 15m
2026-05-09 FDX451 LAX → MEM May 9, 13:04 UTCMay 9, 16:20 UTC3h 16m
2026-05-09 FDX1515 MEM → TPA May 9, 07:50 UTCMay 9, 11:05 UTC3h 15m
2026-05-09 FDX1229 SMF → MEM May 9, 01:55 UTCMay 9, 05:15 UTC3h 20m
2026-05-08 FDX1429 MEM → SMF May 8, 08:34 UTCMay 8, 12:20 UTC3h 45m
2026-05-08 FDX1359 FAT → SBD May 8, 02:09 UTCMay 8, 05:09 UTC3h 0m
2026-05-08 FDX1359 FAT → SBD May 8, 00:14 UTCMay 8, 00:54 UTC40m
2026-05-07 FDX1573 ICT → FAT May 7, 13:30 UTCMay 7, 13:55 UTC25m
2026-05-07 FDX1573 ICT → FAT May 7, 08:45 UTCMay 7, 11:55 UTC3h 10m
2026-05-07 FDX1299 IAH → MEM May 7, 03:25 UTCMay 7, 04:25 UTC1h 0m
2026-05-06 FDX1732 IND → IAH May 6, 08:20 UTCMay 6, 10:30 UTC2h 10m
2026-05-06 FDX1631 CLE → IND May 6, 03:00 UTCMay 6, 04:00 UTC1h 0m
2026-05-05 FDX361 MEM → PIT May 5, 22:20 UTCMay 5, 23:35 UTC1h 15m

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 N162FE page for operator, model, and routing details .

Mode-S A0F99E frequently asked

What is Mode-S code A0F99E?
A0F99E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N162FE.
Where is Mode-S A0F99E registered?
Mode-S code A0F99E 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 A0F99E broadcasting right now?
No active broadcast right now. Last signal was 10h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A0F99E, octal 50174636, decimal 10,549,662.
What flights does A0F99E operate?
Mode-S A0F99E has broadcast 20 distinct callsigns, including FDX1573, FDX1415, FDX1359, FDX1542, FDX1468.