Apparatus

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sensors Mode-S transponder

A1288B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N174FE · BOEING 767-300 · operated by FEDERAL EXPRESS CORP

Hex
A1288B
Octal
50224213
Decimal
10,561,675
Country
US
Tail
N174FE
Type
B763
No current signal · last broadcast Jul 26, 22:45 UTC
Flights observed
198
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:45 UTC

Last known position

Most recent position reported by Mode-S A1288B.

Country allocation

The ICAO 24-bit address A1288B 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
FDX1728 - 7 2026-07-14
FDX141 - 5 2026-06-27
FDX142 FedEx Express 4 2026-04-23
FDX140 - 4 2026-06-26
FDX1249 FedEx Express 4 2026-05-20
FDX1885 FedEx Express 3 2026-07-24
FDX1650 - 3 2026-07-15
FDX139 FedEx Express 3 2026-04-24
FDX915 - 2 2026-06-29
FDX878 FedEx Express 2 2026-06-03
FDX853 FedEx Express 2 2026-04-22
FDX764 - 2 2026-07-09
FDX52 - 2 2026-06-24
FDX505 - 2 2026-07-07
FDX3901 - 2 2026-07-01
FDX382 FedEx Express 2 2026-07-26
FDX3646 FedEx Express 2 2026-06-18
FDX336 FedEx Express 2 2026-04-22
FDX251 - 2 2026-06-23
FDX241 FedEx Express 2 2026-04-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 FDX382 PDX → OAK Jul 26, 22:10 UTCJul 26, 22:45 UTC35m
2026-07-26 FDX874 RIC → MEM Jul 26, 12:40 UTCJul 26, 14:45 UTC2h 5m
2026-07-25 FDX3908 OAK → EWR Jul 25, 14:45 UTCJul 25, 19:40 UTC4h 55m
2026-07-25 FDX3812 SEA → OAK Jul 25, 09:55 UTCJul 25, 11:40 UTC1h 45m
2026-07-24 FDX1885 OAK → SEA Jul 24, 10:15 UTCJul 24, 11:40 UTC1h 25m
2026-07-24 FDX1885 OAK → SEA Jul 24, 10:20 UTCJul 24, 11:45 UTC1h 25m
2026-07-24 FDX1804 SLC → OAK Jul 24, 05:25 UTCJul 24, 06:00 UTC35m
2026-07-24 FDX1804 SLC → OAK Jul 24, 03:15 UTCJul 24, 04:15 UTC1h 0m
2026-07-23 FDX945 MEM → SLC Jul 23, 20:45 UTCJul 23, 23:25 UTC2h 40m
2026-07-23 FDX1222 SAN → MEM Jul 23, 02:30 UTCJul 23, 05:40 UTC3h 10m
2026-07-23 FDX1222 SAN → MEM Jul 23, 02:29 UTCJul 23, 05:40 UTC3h 11m
2026-07-22 FDX1754 IND → ONT Jul 22, 10:20 UTCJul 22, 12:30 UTC2h 10m
2026-07-22 FDX2684 - Jul 22, 02:20 UTCJul 22, 04:35 UTC2h 15m
2026-07-21 FDX331 - Jul 21, 22:20 UTCJul 22, 00:10 UTC1h 50m
2026-07-21 FDX630 SEA → MEM Jul 21, 13:20 UTCJul 21, 16:50 UTC3h 30m
2026-07-21 FDX1885 OAK → SEA Jul 21, 09:55 UTCJul 21, 11:15 UTC1h 20m
2026-07-21 FDX1838 SEA → OAK Jul 21, 04:00 UTCJul 21, 05:40 UTC1h 40m
2026-07-18 FDX710 - Jul 18, 20:50 UTCJul 19, 00:30 UTC3h 40m
2026-07-18 FDX451 - Jul 18, 12:30 UTCJul 18, 15:40 UTC3h 10m
2026-07-17 FDX1742 - Jul 17, 07:00 UTCJul 17, 10:25 UTC3h 25m
2026-07-16 FDX3629 - Jul 16, 13:40 UTCJul 16, 16:44 UTC3h 5m
2026-07-16 FDX1748 - Jul 16, 08:25 UTCJul 16, 11:15 UTC2h 50m
2026-07-16 FDX151 YYZ → IND Jul 16, 02:15 UTCJul 16, 03:15 UTC1h 0m
2026-07-15 FDX150 IND → YYZ Jul 15, 08:45 UTCJul 15, 09:50 UTC1h 5m
2026-07-15 FDX1650 - Jul 15, 02:15 UTCJul 15, 06:00 UTC3h 45m
2026-07-15 FDX1650 LAX → IND Jul 15, 02:14 UTCJul 15, 05:55 UTC3h 41m
2026-07-14 FDX1728 - Jul 14, 13:00 UTCJul 14, 14:45 UTC1h 45m
2026-07-14 FDX1728 DEN → LAX Jul 14, 12:56 UTCJul 14, 14:46 UTC1h 50m
2026-07-14 FDX1728 - Jul 14, 09:25 UTCJul 14, 11:20 UTC1h 55m
2026-07-14 FDX1617 - Jul 14, 03:35 UTCJul 14, 05:20 UTC1h 45m
2026-07-10 FDX1732 - Jul 10, 08:25 UTCJul 10, 10:15 UTC1h 50m
2026-07-10 FDX1612 JFK → IND Jul 10, 02:35 UTCJul 10, 04:10 UTC1h 35m
2026-07-10 FDX1612 JFK → IND Jul 10, 02:35 UTCJul 10, 04:05 UTC1h 30m
2026-07-09 FDX764 - Jul 9, 20:50 UTCJul 9, 23:30 UTC2h 40m
2026-07-09 FDX476 - Jul 9, 12:00 UTCJul 9, 13:25 UTC1h 25m
2026-07-09 FDX1738 - Jul 9, 08:30 UTCJul 9, 09:40 UTC1h 10m
2026-07-09 FDX1603 ATL → IND Jul 9, 03:35 UTCJul 9, 04:35 UTC1h 0m
2026-07-08 FDX1774 IND → ATL Jul 8, 08:35 UTCJul 8, 09:35 UTC1h 0m
2026-07-08 FDX1611 - Jul 8, 02:30 UTCJul 8, 03:10 UTC40m
2026-07-07 FDX505 - Jul 7, 21:30 UTCJul 7, 22:50 UTC1h 20m
2026-07-07 FDX505 MEM → DTW Jul 7, 21:29 UTCJul 7, 22:50 UTC1h 21m
2026-07-07 FDX886 - Jul 7, 14:35 UTCJul 7, 18:05 UTC3h 30m
2026-07-07 FDX1419 - Jul 7, 08:55 UTCJul 7, 12:30 UTC3h 35m
2026-07-07 FDX1227 - Jul 7, 02:55 UTCJul 7, 04:25 UTC1h 30m
2026-07-03 FDX1432 - Jul 3, 09:00 UTCJul 3, 10:10 UTC1h 10m
2026-07-03 FDX1432 MEM → AUS Jul 3, 08:56 UTCJul 3, 10:10 UTC1h 14m
2026-07-03 FDX2209 - Jul 3, 01:40 UTCJul 3, 03:15 UTC1h 35m
2026-07-03 FDX2209 MCO → MEM Jul 3, 01:37 UTCJul 3, 03:13 UTC1h 36m
2026-07-02 FDX1771 - Jul 2, 08:30 UTCJul 2, 10:15 UTC1h 45m
2026-07-02 FDX1600 EWR → IND Jul 2, 02:35 UTCJul 2, 04:00 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 N174FE page for operator, model, and routing details .

Mode-S A1288B frequently asked

What is Mode-S code A1288B?
A1288B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N174FE.
Where is Mode-S A1288B registered?
Mode-S code A1288B 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 A1288B 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 A1288B, octal 50224213, decimal 10,561,675.
What flights does A1288B operate?
Mode-S A1288B has broadcast 20 distinct callsigns, including FDX1728, FDX141, FDX142, FDX140, FDX1249.