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sensors Mode-S transponder

A86540

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N640AE · EMBRAER ERJ-145 · operated by AMERICAN AIRLINES INC

Hex
A86540
Octal
52062500
Decimal
11,035,968
Country
US
Tail
N640AE
Type
E145
No current signal · last broadcast 9h ago
Flights observed
771
Distinct callsigns
20
Country
US
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S A86540.

Country allocation

The ICAO 24-bit address A86540 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
PDT6053 - 13 2026-06-29
PDT6054 - 11 2026-07-05
PDT6043 Piedmont Airlines 10 2026-06-07
PDT5910 - 10 2026-07-03
PDT5816 - 10 2026-07-08
PDT5806 - 10 2026-07-03
PDT6128 Piedmont Airlines 9 2026-05-31
PDT6062 Piedmont Airlines 9 2026-05-31
PDT6125 - 7 2026-07-07
PDT5950 Piedmont Airlines 7 2026-05-01
PDT5805 - 7 2026-06-28
PDT6077 - 6 2026-06-27
PDT6041 - 6 2026-07-08
PDT6017 - 6 2026-06-18
PDT5999 Piedmont Airlines 6 2026-05-20
PDT5988 Piedmont Airlines 6 2026-06-06
PDT5964 - 6 2026-07-13
PDT5874 - 6 2026-06-29
PDT5852 Piedmont Airlines 6 2026-06-07
PDT5832 - 6 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 PDT5801 - Jul 13, 22:40 UTCJul 14, 00:05 UTC1h 25m
2026-07-13 PDT5801 - Jul 13, 19:55 UTCJul 13, 21:20 UTC1h 25m
2026-07-13 PDT5915 - Jul 13, 16:25 UTCJul 13, 18:00 UTC1h 35m
2026-07-13 PDT5915 SDF → PHL Jul 13, 16:22 UTCJul 13, 17:55 UTC1h 33m
2026-07-13 PDT5915 PHL → SDF Jul 13, 14:05 UTCJul 13, 15:30 UTC1h 25m
2026-07-13 PDT5830 - Jul 13, 11:55 UTCJul 13, 12:30 UTC35m
2026-07-13 PDT5964 - Jul 13, 02:15 UTCJul 13, 03:10 UTC55m
2026-07-12 PDT6024 - Jul 12, 23:25 UTCJul 13, 00:30 UTC1h 5m
2026-07-12 PDT6024 - Jul 12, 21:05 UTCJul 12, 21:50 UTC45m
2026-07-12 PDT9976 - Jul 12, 18:50 UTCJul 12, 19:30 UTC40m
2026-07-12 PDT5969 - Jul 12, 00:10 UTCJul 12, 00:50 UTC40m
2026-07-12 PDT5969 PHL → RIC Jul 12, 00:08 UTCJul 12, 00:50 UTC42m
2026-07-11 PDT5840 - Jul 11, 21:30 UTCJul 11, 22:40 UTC1h 10m
2026-07-11 PDT5840 PHL → MHT Jul 11, 17:20 UTCJul 11, 18:15 UTC55m
2026-07-11 PDT5997 - Jul 11, 14:50 UTCJul 11, 15:35 UTC45m
2026-07-11 PDT5997 BDL → PHL Jul 11, 14:49 UTCJul 11, 15:34 UTC45m
2026-07-11 PDT5997 - Jul 11, 13:30 UTCJul 11, 14:10 UTC40m
2026-07-11 PDT5873 - Jul 11, 09:40 UTCJul 11, 10:30 UTC50m
2026-07-11 PDT5911 PHL → BUF Jul 11, 02:40 UTCJul 11, 03:25 UTC45m
2026-07-11 PDT6108 ROC → PHL Jul 11, 00:15 UTCJul 11, 01:05 UTC50m
2026-07-11 PDT6108 ROC → PHL Jul 11, 00:14 UTCJul 11, 01:05 UTC51m
2026-07-10 PDT6108 - Jul 10, 22:30 UTCJul 10, 23:15 UTC45m
2026-07-10 PDT5840 - Jul 10, 19:55 UTCJul 10, 21:05 UTC1h 10m
2026-07-10 PDT5840 MHT → PHL Jul 10, 19:54 UTCJul 10, 21:05 UTC1h 11m
2026-07-10 PDT5840 PHL → MHT Jul 10, 17:20 UTCJul 10, 18:15 UTC55m
2026-07-10 PDT6126 - Jul 10, 14:50 UTCJul 10, 15:35 UTC45m
2026-07-10 PDT6126 - Jul 10, 13:15 UTCJul 10, 14:05 UTC50m
2026-07-10 PDT6022 - Jul 10, 11:25 UTCJul 10, 12:10 UTC45m
2026-07-10 PDT6022 ART → PHL Jul 10, 11:20 UTCJul 10, 12:13 UTC53m
2026-07-10 PDT9978 - Jul 10, 00:50 UTCJul 10, 01:35 UTC45m
2026-07-09 PDT5832 - Jul 9, 18:20 UTCJul 9, 19:25 UTC1h 5m
2026-07-09 PDT6101 - Jul 9, 16:35 UTCJul 9, 16:55 UTC20m
2026-07-09 PDT6091 PHL → AVL Jul 9, 14:15 UTCJul 9, 15:37 UTC1h 22m
2026-07-09 PDT6091 - Jul 9, 14:15 UTCJul 9, 15:40 UTC1h 25m
2026-07-09 PDT5904 ROC → PHL Jul 9, 11:10 UTCJul 9, 12:00 UTC50m
2026-07-09 PDT6090 - Jul 9, 02:20 UTCJul 9, 03:10 UTC50m
2026-07-08 PDT5816 - Jul 8, 23:30 UTCJul 9, 00:50 UTC1h 20m
2026-07-08 PDT5816 - Jul 8, 21:30 UTCJul 8, 22:30 UTC1h 0m
2026-07-08 PDT6041 - Jul 8, 19:00 UTCJul 8, 19:50 UTC50m
2026-07-08 PDT6041 BUF → PHL Jul 8, 18:57 UTCJul 8, 19:48 UTC51m
2026-07-08 PDT6041 PSQ → BUF Jul 8, 17:00 UTCJul 8, 17:50 UTC50m
2026-07-08 PDT6122 - Jul 8, 15:10 UTCJul 8, 15:45 UTC35m
2026-07-08 PDT6122 PHL → ORF Jul 8, 13:45 UTCJul 8, 14:30 UTC45m
2026-07-08 PDT5904 ROC → PHL Jul 8, 11:23 UTCJul 8, 12:24 UTC1h 1m
2026-07-08 PDT5904 ROC → PHL Jul 8, 11:05 UTCJul 8, 11:55 UTC50m
2026-07-08 PDT6090 PHL → ROC Jul 8, 02:35 UTCJul 8, 03:25 UTC50m
2026-07-08 PDT6090 PHL → ROC Jul 8, 02:33 UTCJul 8, 03:24 UTC51m
2026-07-07 PDT6084 - Jul 7, 23:05 UTCJul 8, 00:20 UTC1h 15m
2026-07-07 PDT5875 - Jul 7, 21:45 UTCJul 7, 22:05 UTC20m
2026-07-07 PDT5875 CLT → CAE Jul 7, 21:44 UTCJul 7, 22:08 UTC24m

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 N640AE page for operator, model, and routing details .

Mode-S A86540 frequently asked

What is Mode-S code A86540?
A86540 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N640AE.
Where is Mode-S A86540 registered?
Mode-S code A86540 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 A86540 broadcasting right now?
No active broadcast right now. Last signal was 9h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A86540, octal 52062500, decimal 11,035,968.
What flights does A86540 operate?
Mode-S A86540 has broadcast 20 distinct callsigns, including PDT6053, PDT6054, PDT6043, PDT5910, PDT5816.