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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 Jul 26, 21:30 UTC
Flights observed
806
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:30 UTC

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
PDT5978 Piedmont Airlines 13 2026-07-26
PDT6127 - 12 2026-07-11
PDT6041 Piedmont Airlines 11 2026-07-25
PDT6026 - 11 2026-07-03
PDT5982 Piedmont Airlines 10 2026-07-25
PDT5902 - 10 2026-07-11
PDT6120 Piedmont Airlines 9 2026-07-23
PDT5919 Piedmont Airlines 9 2026-07-24
PDT5825 - 9 2026-07-15
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
PDT5789 - 8 2026-07-15
PDT6095 - 7 2026-07-04
PDT5843 Piedmont Airlines 7 2026-06-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 PDT6082 PHL → CVG Jul 26, 21:25 UTCJul 26, 21:30 UTC5m
2026-07-26 PDT6082 PHL → CVG Jul 26, 19:35 UTCJul 26, 20:20 UTC45m
2026-07-26 PDT5978 DTW → PHL Jul 26, 17:05 UTCJul 26, 18:00 UTC55m
2026-07-26 PDT5978 DTW → PHL Jul 26, 16:56 UTCJul 26, 18:06 UTC1h 10m
2026-07-26 PDT5978 DTW → PHL Jul 26, 14:55 UTCJul 26, 15:50 UTC55m
2026-07-26 PDT5928 ROA → PHL Jul 26, 12:45 UTCJul 26, 13:35 UTC50m
2026-07-25 PDT5926 PHL → TYS Jul 25, 23:00 UTCJul 26, 00:05 UTC1h 5m
2026-07-25 PDT6041 CLT → LEX Jul 25, 19:10 UTCJul 25, 20:00 UTC50m
2026-07-25 PDT6041 CLT → LEX Jul 25, 17:25 UTCJul 25, 18:20 UTC55m
2026-07-25 PDT5982 RIC → PHL Jul 25, 14:55 UTCJul 25, 15:35 UTC40m
2026-07-25 PDT5982 RIC → PHL Jul 25, 14:48 UTCJul 25, 15:33 UTC45m
2026-07-25 PDT5982 RIC → PHL Jul 25, 13:20 UTCJul 25, 13:55 UTC35m
2026-07-25 PDT5936 LEX → PHL Jul 25, 10:20 UTCJul 25, 10:45 UTC25m
2026-07-25 PDT5934 PHL → CVG Jul 25, 02:40 UTCJul 25, 03:05 UTC25m
2026-07-25 PDT5934 PHL → CVG Jul 25, 02:38 UTCJul 25, 03:11 UTC33m
2026-07-24 PDT5816 MHT → PHL Jul 24, 23:45 UTCJul 25, 00:45 UTC1h 0m
2026-07-24 PDT5816 MHT → PHL Jul 24, 23:39 UTCJul 25, 00:46 UTC1h 7m
2026-07-24 PDT5816 MHT → PHL Jul 24, 21:35 UTCJul 24, 22:35 UTC1h 0m
2026-07-24 PDT6028 ILM → PHL Jul 24, 19:05 UTCJul 24, 19:50 UTC45m
2026-07-24 PDT6028 ILM → PHL Jul 24, 17:25 UTCJul 24, 18:10 UTC45m
2026-07-24 PDT5982 RIC → PHL Jul 24, 15:20 UTCJul 24, 16:05 UTC45m
2026-07-24 PDT5982 RIC → PHL Jul 24, 13:40 UTCJul 24, 14:30 UTC50m
2026-07-24 PDT5937 MDT → BOS Jul 24, 10:40 UTCJul 24, 11:35 UTC55m
2026-07-24 PDT5919 PHL → ALB Jul 24, 02:40 UTCJul 24, 03:40 UTC1h 0m
2026-07-24 PDT5919 PHL → ALB Jul 24, 02:38 UTCJul 24, 03:37 UTC59m
2026-07-24 PDT6108 SDF → PHL Jul 24, 00:40 UTCJul 24, 01:25 UTC45m
2026-07-23 PDT6108 SDF → PHL Jul 23, 23:05 UTCJul 24, 00:00 UTC55m
2026-07-23 PDT6120 PHL → YQB Jul 23, 19:40 UTCJul 23, 20:55 UTC1h 15m
2026-07-23 PDT6120 PHL → YQB Jul 23, 17:00 UTCJul 23, 18:45 UTC1h 45m
2026-07-23 PDT5894 SAV → PHL Jul 23, 15:15 UTCJul 23, 15:50 UTC35m
2026-07-23 PDT5894 SAV → PHL Jul 23, 13:40 UTCJul 23, 14:15 UTC35m
2026-07-23 PDT5937 MDT → BOS Jul 23, 10:40 UTCJul 23, 11:30 UTC50m
2026-07-23 PDT5937 MDT → BOS Jul 23, 10:36 UTCJul 23, 11:36 UTC1h 0m
2026-07-23 PDT5919 PHL → ALB Jul 23, 03:00 UTCJul 23, 04:05 UTC1h 5m
2026-07-23 PDT5919 PHL → ALB Jul 23, 02:58 UTCJul 23, 04:02 UTC1h 4m
2026-07-23 PDT5895 CHO → PHL Jul 23, 01:30 UTCJul 23, 02:20 UTC50m
2026-07-23 PDT5895 CHO → PHL Jul 23, 01:28 UTCJul 23, 02:05 UTC37m
2026-07-23 PDT5895 CHO → PHL Jul 23, 00:00 UTCJul 23, 00:50 UTC50m
2026-07-22 PDT5907 GSO → PHL Jul 22, 21:30 UTCJul 22, 22:25 UTC55m
2026-07-22 PDT5907 GSO → PHL Jul 22, 21:27 UTCJul 22, 22:16 UTC49m
2026-07-22 PDT5907 GSO → PHL Jul 22, 19:55 UTCJul 22, 20:45 UTC50m
2026-07-22 PDT5920 PHL → ART Jul 22, 17:05 UTCJul 22, 17:40 UTC35m
2026-07-22 PDT5920 PHL → ART Jul 22, 15:50 UTCJul 22, 16:15 UTC25m
2026-07-22 PDT6013 PHL → SDF Jul 22, 11:20 UTCJul 22, 11:45 UTC25m
2026-07-21 PDT9656 PHL → DAY Jul 21, 23:30 UTCJul 22, 00:50 UTC1h 20m
2026-07-20 PDT6132 PHL → SYR Jul 20, 16:20 UTCJul 20, 17:30 UTC1h 10m
2026-07-20 PDT6117 - Jul 20, 14:25 UTCJul 20, 14:50 UTC25m
2026-07-20 PDT6117 MDT → PHL Jul 20, 14:23 UTCJul 20, 14:47 UTC24m
2026-07-20 PDT5836 - Jul 20, 12:10 UTCJul 20, 13:20 UTC1h 10m
2026-07-19 PDT6118 - Jul 19, 23:45 UTCJul 20, 01:10 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 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 Jul 26, 21:30 UTC.
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 PDT5978, PDT6127, PDT6041, PDT6026, PDT5982.