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sensors Mode-S transponder

A246CB

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N246FE · BOEING 767-300 · operated by BOEING CO

Hex
A246CB
Octal
50443313
Decimal
10,634,955
Country
US
Tail
N246FE
Type
B763
No current signal · last broadcast Jul 26, 22:45 UTC
Flights observed
195
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:45 UTC

Last known position

Most recent position reported by Mode-S A246CB.

Country allocation

The ICAO 24-bit address A246CB 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
FDX1313 FedEx Express 5 2026-07-25
FDX455 - 4 2026-07-03
FDX1874 FedEx Express 4 2026-06-11
FDX1359 FedEx Express 4 2026-04-15
FDX944 - 3 2026-07-14
FDX916 FedEx Express 3 2026-07-26
FDX764 FedEx Express 3 2026-04-20
FDX1601 FedEx Express 3 2026-06-03
FDX1573 FedEx Express 3 2026-04-14
FDX1401 - 3 2026-06-23
FDX1292 FedEx Express 3 2026-04-23
FDX986 - 2 2026-07-06
FDX694 - 2 2026-07-08
FDX657 - 2 2026-07-02
FDX644 FedEx Express 2 2026-05-26
FDX52 FedEx Express 2 2026-05-28
FDX51 FedEx Express 2 2026-04-18
FDX476 FedEx Express 2 2026-06-03
FDX3954 FedEx Express 2 2026-07-18
FDX2681 - 2 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 FDX916 MEM → ELP Jul 26, 21:45 UTCJul 26, 22:45 UTC1h 0m
2026-07-26 FDX241 YYC → MEM Jul 26, 12:45 UTCJul 26, 15:45 UTC3h 0m
2026-07-25 FDX140 MEM → YYC Jul 25, 09:30 UTCJul 25, 13:05 UTC3h 35m
2026-07-25 FDX1313 MSY → MEM Jul 25, 03:55 UTCJul 25, 04:45 UTC50m
2026-07-25 FDX1313 MSY → MEM Jul 25, 02:25 UTCJul 25, 02:50 UTC25m
2026-07-24 FDX1453 MEM → MSY Jul 24, 08:50 UTCJul 24, 09:40 UTC50m
2026-07-24 FDX1378 BUF → MEM Jul 24, 01:50 UTCJul 24, 02:55 UTC1h 5m
2026-07-23 FDX1425 MEM → IAH Jul 23, 10:35 UTCJul 23, 11:20 UTC45m
2026-07-23 FDX1425 MEM → IAH Jul 23, 08:00 UTCJul 23, 09:05 UTC1h 5m
2026-07-23 FDX1313 MSY → MEM Jul 23, 02:25 UTCJul 23, 03:15 UTC50m
2026-07-22 FDX131 YMX → MEM Jul 22, 01:40 UTCJul 22, 04:15 UTC2h 35m
2026-07-21 FDX130 MEM → YMX Jul 21, 09:20 UTCJul 21, 11:25 UTC2h 5m
2026-07-21 FDX1263 ATL → MEM Jul 21, 03:50 UTCJul 21, 04:45 UTC55m
2026-07-19 FDX727 MEM → ATL Jul 19, 22:45 UTCJul 19, 23:50 UTC1h 5m
2026-07-19 FDX668 SEA → MEM Jul 19, 12:45 UTCJul 19, 16:15 UTC3h 30m
2026-07-18 FDX3954 SEA → LAX Jul 18, 21:25 UTCJul 19, 00:30 UTC3h 5m
2026-07-18 FDX3954 SEA → LAX Jul 18, 21:22 UTCJul 19, 02:40 UTC5h 18m
2026-07-18 FDX3926 BOS → EWR Jul 18, 02:40 UTCJul 18, 03:30 UTC51m
2026-07-17 FDX1710 IND → BOS Jul 17, 08:40 UTCJul 17, 10:20 UTC1h 40m
2026-07-17 FDX1603 ATL → IND Jul 17, 03:34 UTCJul 17, 04:39 UTC1h 5m
2026-07-16 FDX1774 - Jul 16, 08:55 UTCJul 16, 09:55 UTC1h 0m
2026-07-16 FDX2681 - Jul 16, 02:00 UTCJul 16, 02:45 UTC45m
2026-07-16 FDX2681 MCO → IND Jul 16, 01:59 UTCJul 16, 03:45 UTC1h 46m
2026-07-15 FDX358 - Jul 15, 21:50 UTCJul 15, 23:20 UTC1h 30m
2026-07-15 FDX415 - Jul 15, 12:05 UTCJul 15, 15:20 UTC3h 15m
2026-07-14 FDX944 - Jul 14, 20:20 UTCJul 14, 23:25 UTC3h 4m
2026-07-14 FDX690 - Jul 14, 14:10 UTCJul 14, 17:40 UTC3h 30m
2026-07-14 FDX1705 IND → OAK Jul 14, 08:30 UTCJul 14, 12:07 UTC3h 37m
2026-07-14 FDX1705 IND → OAK Jul 14, 08:30 UTCJul 14, 12:10 UTC3h 40m
2026-07-14 FDX1635 - Jul 14, 03:10 UTCJul 14, 04:10 UTC1h 0m
2026-07-14 FDX1635 CLT → IND Jul 14, 03:05 UTCJul 14, 04:07 UTC1h 2m
2026-07-11 FDX1492 - Jul 11, 09:35 UTCJul 11, 10:40 UTC1h 5m
2026-07-11 FDX141 - Jul 11, 02:05 UTCJul 11, 05:25 UTC3h 20m
2026-07-10 FDX140 - Jul 10, 08:55 UTCJul 10, 12:20 UTC3h 25m
2026-07-10 FDX1203 - Jul 10, 01:25 UTCJul 10, 02:50 UTC1h 25m
2026-07-09 FDX1722 - Jul 9, 08:45 UTCJul 9, 09:35 UTC50m
2026-07-09 FDX1678 PHX → IND Jul 9, 02:50 UTCJul 9, 05:45 UTC2h 55m
2026-07-08 FDX904 - Jul 8, 20:55 UTCJul 8, 23:35 UTC2h 40m
2026-07-08 FDX694 - Jul 8, 11:35 UTCJul 8, 13:15 UTC1h 40m
2026-07-08 FDX1434 - Jul 8, 07:55 UTCJul 8, 09:30 UTC1h 35m
2026-07-08 FDX1381 - Jul 8, 00:40 UTCJul 8, 04:00 UTC3h 20m
2026-07-06 FDX986 - Jul 6, 23:10 UTCJul 7, 02:45 UTC3h 35m
2026-07-06 FDX986 MEM → OAK Jul 6, 23:06 UTCJul 7, 02:45 UTC3h 39m
2026-07-03 FDX455 - Jul 3, 13:50 UTCJul 3, 16:50 UTC3h 0m
2026-07-02 FDX944 - Jul 2, 20:30 UTCJul 2, 23:45 UTC3h 15m
2026-07-02 FDX657 BOS → MEM Jul 2, 12:00 UTCJul 2, 14:25 UTC2h 25m
2026-07-02 FDX657 - Jul 2, 12:00 UTCJul 2, 14:25 UTC2h 25m
2026-07-02 FDX1406 - Jul 2, 08:25 UTCJul 2, 10:35 UTC2h 10m
2026-07-02 FDX1247 ORD → MEM Jul 2, 04:15 UTCJul 2, 05:30 UTC1h 15m
2026-07-01 FDX1405 - Jul 1, 09:35 UTCJul 1, 10:50 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 N246FE page for operator, model, and routing details .

Mode-S A246CB frequently asked

What is Mode-S code A246CB?
A246CB is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N246FE.
Where is Mode-S A246CB registered?
Mode-S code A246CB 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 A246CB broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A246CB, octal 50443313, decimal 10,634,955.
What flights does A246CB operate?
Mode-S A246CB has broadcast 20 distinct callsigns, including FDX1313, FDX455, FDX1874, FDX1359, FDX944.