Apparatus

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sensors Mode-S transponder

A8BF6E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N663AR · EMBRAER ERJ-145 · operated by AMERICAN AIRLINES INC

Hex
A8BF6E
Octal
52137556
Decimal
11,059,054
Country
US
Tail
N663AR
Type
E145
No current signal · last broadcast 37m ago
Flights observed
710
Distinct callsigns
20
Country
US
Last broadcast
37m ago

Last known position

Most recent position reported by Mode-S A8BF6E.

Country allocation

The ICAO 24-bit address A8BF6E 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
PDT6127 - 12 2026-07-11
PDT6026 - 11 2026-07-03
PDT5978 - 10 2026-07-05
PDT5902 - 10 2026-07-11
PDT6041 - 9 2026-07-06
PDT6133 - 8 2026-07-13
PDT6097 - 8 2026-07-12
PDT6058 Piedmont Airlines 8 2026-05-09
PDT6050 - 8 2026-06-17
PDT6048 - 8 2026-06-27
PDT5884 - 8 2026-07-04
PDT5847 Piedmont Airlines 8 2026-04-27
PDT5830 - 8 2026-07-01
PDT6120 - 7 2026-06-29
PDT6095 - 7 2026-07-04
PDT5843 Piedmont Airlines 7 2026-06-10
PDT5825 Piedmont Airlines 7 2026-04-26
PDT5796 Piedmont Airlines 7 2026-04-26
PDT6025 - 6 2026-06-16
PDT5998 Piedmont Airlines 6 2026-05-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 PDT6112 - Jul 14, 19:00 UTCJul 14, 19:30 UTC30m
2026-07-14 PDT6112 - Jul 14, 17:35 UTCJul 14, 18:00 UTC25m
2026-07-14 PDT5863 - Jul 14, 15:20 UTCJul 14, 16:05 UTC45m
2026-07-14 PDT5863 PGV → CLT Jul 14, 15:14 UTCJul 14, 15:58 UTC44m
2026-07-14 PDT5863 - Jul 14, 13:50 UTCJul 14, 14:20 UTC30m
2026-07-14 PDT5933 - Jul 14, 11:25 UTCJul 14, 12:10 UTC45m
2026-07-13 PDT5926 - Jul 13, 22:40 UTCJul 13, 23:40 UTC1h 0m
2026-07-13 PDT6133 - Jul 13, 20:05 UTCJul 13, 21:20 UTC1h 15m
2026-07-13 PDT6133 ILM → PHL Jul 13, 20:01 UTCJul 13, 21:20 UTC1h 19m
2026-07-13 PDT6133 - Jul 13, 17:40 UTCJul 13, 18:45 UTC1h 5m
2026-07-13 PDT5908 - Jul 13, 15:05 UTCJul 13, 16:30 UTC1h 25m
2026-07-13 PDT5908 GSP → PHL Jul 13, 15:04 UTCJul 13, 16:30 UTC1h 26m
2026-07-13 PDT5799 - Jul 13, 13:35 UTCJul 13, 14:00 UTC25m
2026-07-13 PDT5799 CLT → GSP Jul 13, 13:32 UTCJul 13, 13:56 UTC24m
2026-07-13 PDT6098 - Jul 13, 11:25 UTCJul 13, 12:10 UTC45m
2026-07-13 PDT6071 - Jul 13, 04:05 UTCJul 13, 04:40 UTC35m
2026-07-13 PDT6071 CLT → EWN Jul 13, 04:04 UTCJul 13, 04:44 UTC40m
2026-07-13 PDT5792 - Jul 13, 01:55 UTCJul 13, 02:20 UTC25m
2026-07-13 PDT5792 AVL → CLT Jul 13, 01:52 UTCJul 13, 02:19 UTC27m
2026-07-13 PDT5792 - Jul 13, 00:45 UTCJul 13, 01:05 UTC20m
2026-07-12 PDT9981 - Jul 12, 21:35 UTCJul 12, 23:20 UTC1h 45m
2026-07-12 PDT6097 - Jul 12, 01:50 UTCJul 12, 03:25 UTC1h 35m
2026-07-11 PDT5902 - Jul 11, 23:25 UTCJul 12, 00:25 UTC1h 0m
2026-07-11 PDT5902 TLH → CLT Jul 11, 23:21 UTCJul 12, 00:23 UTC1h 2m
2026-07-11 PDT5902 - Jul 11, 21:30 UTCJul 11, 22:25 UTC55m
2026-07-11 PDT6127 - Jul 11, 18:20 UTCJul 11, 19:05 UTC45m
2026-07-11 PDT6127 CHA → CLT Jul 11, 18:16 UTCJul 11, 19:02 UTC46m
2026-07-11 PDT6127 - Jul 11, 16:45 UTCJul 11, 17:30 UTC45m
2026-07-11 PDT5856 - Jul 11, 14:55 UTCJul 11, 15:25 UTC30m
2026-07-11 PDT5856 FAY → CLT Jul 11, 14:53 UTCJul 11, 15:25 UTC32m
2026-07-11 PDT5874 - Jul 11, 03:10 UTCJul 11, 03:35 UTC25m
2026-07-11 PDT5902 - Jul 11, 00:45 UTCJul 11, 01:45 UTC1h 0m
2026-07-10 PDT5902 - Jul 10, 22:35 UTCJul 10, 23:35 UTC1h 0m
2026-07-10 PDT6127 - Jul 10, 17:55 UTCJul 10, 18:15 UTC20m
2026-07-10 PDT6127 - Jul 10, 17:25 UTCJul 10, 18:15 UTC50m
2026-07-10 PDT6127 CHA → CLT Jul 10, 17:24 UTCJul 10, 17:38 UTC14m
2026-07-10 PDT6127 - Jul 10, 15:45 UTCJul 10, 16:30 UTC45m
2026-07-10 PDT5793 - Jul 10, 13:20 UTCJul 10, 13:40 UTC20m
2026-07-10 PDT5793 - Jul 10, 11:50 UTCJul 10, 12:15 UTC25m
2026-07-10 PDT5866 - Jul 10, 09:10 UTCJul 10, 09:55 UTC45m
2026-07-10 PDT5866 CHA → CLT Jul 10, 09:09 UTCJul 10, 09:52 UTC43m
2026-07-10 PDT6085 - Jul 10, 03:55 UTCJul 10, 04:35 UTC40m
2026-07-10 PDT5899 - Jul 10, 02:10 UTCJul 10, 02:40 UTC30m
2026-07-10 PDT5899 - Jul 10, 00:30 UTCJul 10, 01:10 UTC40m
2026-07-09 PDT5902 - Jul 9, 22:00 UTCJul 9, 23:10 UTC1h 10m
2026-07-09 PDT5902 TLH → CLT Jul 9, 21:53 UTCJul 9, 23:08 UTC1h 15m
2026-07-09 PDT5902 - Jul 9, 20:15 UTCJul 9, 21:15 UTC1h 0m
2026-07-09 PDT6127 - Jul 9, 17:40 UTCJul 9, 18:25 UTC45m
2026-07-09 PDT6127 - Jul 9, 16:15 UTCJul 9, 16:55 UTC40m
2026-07-09 PDT6086 - Jul 9, 13:10 UTCJul 9, 14:45 UTC1h 35m

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 N663AR page for operator, model, and routing details .

Mode-S A8BF6E frequently asked

What is Mode-S code A8BF6E?
A8BF6E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N663AR.
Where is Mode-S A8BF6E registered?
Mode-S code A8BF6E 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 A8BF6E broadcasting right now?
No active broadcast right now. Last signal was 37m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8BF6E, octal 52137556, decimal 11,059,054.
What flights does A8BF6E operate?
Mode-S A8BF6E has broadcast 20 distinct callsigns, including PDT6127, PDT6026, PDT5978, PDT5902, PDT6041.