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sensors Mode-S transponder

A1701B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N192FE · BOEING 767-300 · operated by FEDERAL EXPRESS CORP

Hex
A1701B
Octal
50270033
Decimal
10,579,995
Country
US
Tail
N192FE
Type
B763
No current signal · last broadcast 3h ago
Flights observed
187
Distinct callsigns
20
Country
US
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S A1701B.

Country allocation

The ICAO 24-bit address A1701B 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
FDX1804 - 5 2026-07-07
FDX764 - 3 2026-06-18
FDX657 FedEx Express 3 2026-06-18
FDX416 FedEx Express 3 2026-06-17
FDX1837 - 3 2026-06-30
FDX1717 - 3 2026-07-03
FDX1713 - 3 2026-07-10
FDX1635 - 3 2026-07-03
FDX1406 - 3 2026-06-18
FDX980 FedEx Express 2 2026-05-06
FDX979 FedEx Express 2 2026-05-21
FDX944 - 2 2026-04-13
FDX701 FedEx Express 2 2026-04-23
FDX694 FedEx Express 2 2026-06-09
FDX653 FedEx Express 2 2026-05-03
FDX630 FedEx Express 2 2026-04-25
FDX600 FedEx Express 2 2026-07-04
FDX540 - 2 2026-06-30
FDX451 - 2 2026-06-30
FDX434 FedEx Express 2 2026-04-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 FDX402 - Jul 14, 14:50 UTCJul 14, 18:10 UTC3h 20m
2026-07-14 FDX1476 AWM → GEG Jul 14, 09:05 UTCJul 14, 12:15 UTC3h 10m
2026-07-14 FDX1227 AUS → MEM Jul 14, 02:50 UTCJul 14, 04:07 UTC1h 17m
2026-07-14 FDX1227 - Jul 14, 02:50 UTCJul 14, 04:10 UTC1h 20m
2026-07-11 FDX1432 - Jul 11, 09:10 UTCJul 11, 10:20 UTC1h 10m
2026-07-11 FDX2284 - Jul 11, 03:25 UTCJul 11, 04:40 UTC1h 15m
2026-07-10 FDX1713 - Jul 10, 08:35 UTCJul 10, 09:35 UTC1h 0m
2026-07-10 FDX1713 IND → MCI Jul 10, 08:33 UTCJul 10, 09:34 UTC1h 1m
2026-07-10 FDX1617 - Jul 10, 04:30 UTCJul 10, 06:20 UTC1h 50m
2026-07-10 FDX1617 IAH → IND Jul 10, 04:29 UTCJul 10, 06:15 UTC1h 46m
2026-07-09 FDX1732 - Jul 9, 08:30 UTCJul 9, 10:10 UTC1h 40m
2026-07-09 FDX1638 RDU → IND Jul 9, 02:25 UTCJul 9, 03:40 UTC1h 15m
2026-07-09 FDX1638 RDU → IND Jul 9, 02:25 UTCJul 9, 03:39 UTC1h 14m
2026-07-08 FDX785 MEM → RDU Jul 8, 21:25 UTCJul 8, 22:50 UTC1h 25m
2026-07-08 FDX601 - Jul 8, 11:50 UTCJul 8, 13:35 UTC1h 45m
2026-07-08 FDX1400 - Jul 8, 08:30 UTCJul 8, 10:20 UTC1h 50m
2026-07-08 FDX1290 - Jul 8, 02:10 UTCJul 8, 05:15 UTC3h 5m
2026-07-07 FDX1874 - Jul 7, 11:30 UTCJul 7, 12:20 UTC50m
2026-07-07 FDX1874 OAK → LAS Jul 7, 09:30 UTCJul 7, 10:30 UTC1h 0m
2026-07-07 FDX1804 - Jul 7, 05:35 UTCJul 7, 06:10 UTC35m
2026-07-07 FDX1804 RNO → OAK Jul 7, 05:29 UTCJul 7, 06:08 UTC39m
2026-07-07 FDX1804 - Jul 7, 03:30 UTCJul 7, 03:55 UTC25m
2026-07-05 FDX945 - Jul 5, 22:10 UTCJul 6, 00:45 UTC2h 35m
2026-07-04 FDX600 SFO → MEM Jul 4, 11:50 UTCJul 4, 15:35 UTC3h 45m
2026-07-04 FDX600 SFO → MEM Jul 4, 11:50 UTCJul 4, 15:35 UTC3h 45m
2026-07-03 FDX1717 IND → SEA Jul 3, 08:10 UTCJul 3, 12:21 UTC4h 11m
2026-07-03 FDX1717 IND → SEA Jul 3, 08:10 UTCJul 3, 12:25 UTC4h 15m
2026-07-03 FDX1635 - Jul 3, 02:45 UTCJul 3, 03:55 UTC1h 10m
2026-07-03 FDX1635 CLT → IND Jul 3, 02:43 UTCJul 3, 03:50 UTC1h 7m
2026-07-02 FDX1492 - Jul 2, 09:10 UTCJul 2, 10:20 UTC1h 10m
2026-07-02 FDX1208 GEG → MEM Jul 2, 01:50 UTCJul 2, 05:05 UTC3h 15m
2026-07-01 FDX302 - Jul 1, 20:40 UTCJul 2, 00:00 UTC3h 20m
2026-07-01 FDX876 - Jul 1, 13:25 UTCJul 1, 15:55 UTC2h 30m
2026-07-01 FDX1879 OAK → SLC Jul 1, 09:40 UTCJul 1, 11:00 UTC1h 20m
2026-06-30 FDX540 - Jun 30, 21:35 UTCJul 1, 01:15 UTC3h 40m
2026-06-30 FDX451 - Jun 30, 12:55 UTCJun 30, 15:50 UTC2h 55m
2026-06-30 FDX451 LAX → MEM Jun 30, 12:51 UTCJun 30, 15:52 UTC3h 1m
2026-06-30 FDX1876 OAK → LAX Jun 30, 08:50 UTCJun 30, 09:40 UTC50m
2026-06-30 FDX1837 PHX → OAK Jun 30, 04:19 UTCJun 30, 05:51 UTC1h 32m
2026-06-30 FDX1837 PHX → OAK Jun 30, 04:20 UTCJun 30, 05:55 UTC1h 35m
2026-06-27 FDX1865 OAK → PHX Jun 27, 09:24 UTCJun 27, 10:45 UTC1h 20m
2026-06-25 FDX1838 SEA → OAK Jun 25, 03:34 UTCJun 25, 05:05 UTC1h 30m
2026-06-24 FDX3884 OAK → SEA Jun 24, 21:50 UTCJun 24, 23:20 UTC1h 30m
2026-06-24 FDX1705 - Jun 24, 08:14 UTCJun 24, 12:14 UTC4h 0m
2026-06-24 FDX1618 MSP → IND Jun 24, 03:04 UTCJun 24, 04:20 UTC1h 15m
2026-06-23 FDX798 MEM → MSP Jun 23, 21:34 UTCJun 23, 23:44 UTC2h 10m
2026-06-23 FDX450 PHL → MEM Jun 23, 12:40 UTCJun 23, 14:39 UTC2h 0m
2026-06-23 FDX1439 - Jun 23, 08:45 UTCJun 23, 10:29 UTC1h 45m
2026-06-23 FDX2284 MCI → MEM Jun 23, 03:20 UTCJun 23, 04:19 UTC1h 0m
2026-06-19 FDX1713 - Jun 19, 08:24 UTCJun 19, 09:30 UTC1h 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 N192FE page for operator, model, and routing details .

Mode-S A1701B frequently asked

What is Mode-S code A1701B?
A1701B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N192FE.
Where is Mode-S A1701B registered?
Mode-S code A1701B 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 A1701B 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 A1701B, octal 50270033, decimal 10,579,995.
What flights does A1701B operate?
Mode-S A1701B has broadcast 20 distinct callsigns, including FDX1804, FDX764, FDX657, FDX416, FDX1837.