Apparatus

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sensors Mode-S transponder

A8C6E8

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N665BC · EMBRAER ERJ-145 · operated by AMERICAN AIRLINES INC

Hex
A8C6E8
Octal
52143350
Decimal
11,060,968
Country
US
Tail
N665BC
Type
E145
No current signal · last broadcast Jul 26, 21:40 UTC
Flights observed
877
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:40 UTC

Last known position

Most recent position reported by Mode-S A8C6E8.

Country allocation

The ICAO 24-bit address A8C6E8 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
PDT5802 Piedmont Airlines 13 2026-07-21
PDT6119 - 12 2026-06-17
PDT6032 - 11 2026-07-23
PDT5941 Piedmont Airlines 11 2026-06-05
PDT5803 - 11 2026-07-17
PDT6026 Piedmont Airlines 10 2026-07-26
PDT5988 - 10 2026-07-14
PDT5946 Piedmont Airlines 10 2026-07-22
PDT6133 Piedmont Airlines 9 2026-07-06
PDT6065 Piedmont Airlines 9 2026-05-27
PDT6046 - 9 2026-07-19
PDT5982 - 9 2026-06-30
PDT5957 - 9 2026-07-12
PDT5793 Piedmont Airlines 9 2026-07-18
PDT6053 - 8 2026-07-10
PDT5994 Piedmont Airlines 8 2026-06-09
PDT5838 - 8 2026-07-17
PDT6122 Piedmont Airlines 7 2026-05-13
PDT6113 - 7 2026-07-13
PDT6100 Piedmont Airlines 7 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 PDT6025 BOS → ROC Jul 26, 20:30 UTCJul 26, 21:35 UTC1h 5m
2026-07-26 PDT6023 SYR → PHL Jul 26, 17:45 UTCJul 26, 18:55 UTC1h 10m
2026-07-26 PDT6023 SYR → PHL Jul 26, 17:42 UTCJul 26, 18:49 UTC1h 7m
2026-07-26 PDT6026 CLT → ROA Jul 26, 15:20 UTCJul 26, 16:00 UTC40m
2026-07-26 PDT6026 CLT → ROA Jul 26, 13:35 UTCJul 26, 14:20 UTC45m
2026-07-26 PDT5846 SDF → PHL Jul 26, 09:50 UTCJul 26, 11:00 UTC1h 10m
2026-07-26 PDT6093 CLT → LYH Jul 26, 02:05 UTCJul 26, 03:25 UTC1h 20m
2026-07-26 PDT6093 CLT → LYH Jul 26, 02:04 UTCJul 26, 03:24 UTC1h 20m
2026-07-25 PDT5816 MHT → PHL Jul 25, 23:35 UTCJul 26, 00:30 UTC55m
2026-07-25 PDT5816 MHT → PHL Jul 25, 23:28 UTCJul 26, 00:43 UTC1h 15m
2026-07-25 PDT5816 MHT → PHL Jul 25, 21:25 UTCJul 25, 22:20 UTC55m
2026-07-25 PDT6132 PHL → SYR Jul 25, 18:40 UTCJul 25, 19:50 UTC1h 10m
2026-07-25 PDT6132 PHL → SYR Jul 25, 18:36 UTCJul 25, 19:49 UTC1h 13m
2026-07-25 PDT6132 PHL → SYR Jul 25, 16:20 UTCJul 25, 17:40 UTC1h 20m
2026-07-25 PDT6117 YYZ → PHL Jul 25, 14:25 UTCJul 25, 14:45 UTC20m
2026-07-25 PDT5836 CAE → CLT Jul 25, 12:00 UTCJul 25, 13:05 UTC1h 5m
2026-07-25 PDT5836 CAE → CLT Jul 25, 11:58 UTCJul 25, 13:01 UTC1h 3m
2026-07-25 PDT6100 YUL → PHL Jul 25, 09:25 UTCJul 25, 10:35 UTC1h 10m
2026-07-25 PDT6100 YUL → PHL Jul 25, 09:23 UTCJul 25, 10:22 UTC59m
2026-07-25 PDT5990 PHL → SYR Jul 25, 00:05 UTCJul 25, 00:15 UTC10m
2026-07-24 PDT5990 PHL → SYR Jul 24, 23:15 UTCJul 25, 00:00 UTC45m
2026-07-24 PDT5889 GSP → PHL Jul 24, 21:05 UTCJul 24, 21:50 UTC45m
2026-07-24 PDT5889 GSP → PHL Jul 24, 19:15 UTCJul 24, 19:45 UTC30m
2026-07-24 PDT5813 PHL → MDT Jul 24, 16:40 UTCJul 24, 17:20 UTC40m
2026-07-24 PDT5813 PHL → MDT Jul 24, 16:32 UTCJul 24, 17:19 UTC47m
2026-07-24 PDT5813 - Jul 24, 14:45 UTCJul 24, 15:15 UTC30m
2026-07-24 PDT5813 PHL → MDT Jul 24, 14:43 UTCJul 24, 15:28 UTC45m
2026-07-24 PDT6105 PHL → YUL Jul 24, 12:25 UTCJul 24, 13:10 UTC45m
2026-07-24 PDT5787 CLT → CHA Jul 24, 01:35 UTCJul 24, 02:15 UTC40m
2026-07-23 PDT5823 GSO → PHL Jul 23, 21:35 UTCJul 23, 22:30 UTC55m
2026-07-23 PDT5823 GSO → PHL Jul 23, 21:28 UTCJul 23, 22:24 UTC56m
2026-07-23 PDT5823 GSO → PHL Jul 23, 19:05 UTCJul 23, 19:40 UTC35m
2026-07-23 PDT5998 ORD → ALB Jul 23, 16:50 UTCJul 23, 17:15 UTC25m
2026-07-23 PDT6094 LEX → CLT Jul 23, 14:20 UTCJul 23, 15:45 UTC1h 25m
2026-07-23 PDT6094 LEX → CLT Jul 23, 14:18 UTCJul 23, 15:43 UTC1h 25m
2026-07-23 PDT5841 CLT → GSP Jul 23, 12:40 UTCJul 23, 13:00 UTC20m
2026-07-23 PDT5990 PHL → SYR Jul 23, 02:15 UTCJul 23, 03:25 UTC1h 10m
2026-07-23 PDT5990 PHL → SYR Jul 23, 02:13 UTCJul 23, 03:27 UTC1h 14m
2026-07-23 PDT6032 - Jul 23, 00:10 UTCJul 23, 00:35 UTC25m
2026-07-23 PDT6032 AVL → CLT Jul 23, 00:08 UTCJul 23, 00:32 UTC24m
2026-07-22 PDT6032 - Jul 22, 23:05 UTCJul 22, 23:25 UTC20m
2026-07-22 PDT5932 BUF → PHL Jul 22, 20:00 UTCJul 22, 21:05 UTC1h 5m
2026-07-22 PDT5932 BUF → PHL Jul 22, 18:10 UTCJul 22, 19:15 UTC1h 5m
2026-07-22 PDT5946 ILM → PHL Jul 22, 15:40 UTCJul 22, 16:05 UTC25m
2026-07-22 PDT5946 ILM → PHL Jul 22, 14:15 UTCJul 22, 14:40 UTC25m
2026-07-22 PDT6089 - Jul 22, 11:30 UTCJul 22, 12:30 UTC1h 0m
2026-07-22 PDT6079 CAE → PHL Jul 22, 02:45 UTCJul 22, 03:40 UTC55m
2026-07-21 PDT6131 MDT → PHL Jul 21, 20:25 UTCJul 21, 20:50 UTC25m
2026-07-21 PDT6131 MDT → PHL Jul 21, 20:22 UTCJul 21, 20:49 UTC27m
2026-07-21 PDT6131 MDT → PHL Jul 21, 19:20 UTCJul 21, 19:35 UTC15m

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 N665BC page for operator, model, and routing details .

Mode-S A8C6E8 frequently asked

What is Mode-S code A8C6E8?
A8C6E8 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N665BC.
Where is Mode-S A8C6E8 registered?
Mode-S code A8C6E8 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 A8C6E8 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8C6E8, octal 52143350, decimal 11,060,968.
What flights does A8C6E8 operate?
Mode-S A8C6E8 has broadcast 20 distinct callsigns, including PDT5802, PDT6119, PDT6032, PDT5941, PDT5803.