Apparatus

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sensors Mode-S transponder

A8F5BE

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N677AE · EMBRAER ERJ-145 · operated by AMERICAN AIRLINES INC

Hex
A8F5BE
Octal
52172676
Decimal
11,072,958
Country
US
Tail
N677AE
Type
E145
Broadcasting now · callsign PDT5839 · 12,025 ft
Flights observed
704
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Current position

A8F5BE is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A8F5BE 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
PDT6121 - 10 2026-06-20
PDT6131 Piedmont Airlines 9 2026-05-22
PDT6124 - 9 2026-06-17
PDT6011 - 9 2026-07-08
PDT5958 Piedmont Airlines 9 2026-04-28
PDT5878 - 9 2026-06-23
PDT5796 Piedmont Airlines 9 2026-07-05
PDT6102 - 8 2026-07-13
PDT6082 Piedmont Airlines 8 2026-06-11
PDT5997 - 8 2026-06-21
PDT5965 Piedmont Airlines 8 2026-06-16
PDT6128 Piedmont Airlines 7 2026-05-12
PDT6073 - 7 2026-07-13
PDT5963 Piedmont Airlines 7 2026-06-03
PDT5950 - 7 2026-06-27
PDT5843 - 7 2026-07-01
PDT5801 - 7 2026-07-08
PDT6010 - 6 2026-07-11
PDT5894 - 6 2026-07-10
PDT5823 - 6 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 PDT5839 - Jul 14, 18:30 UTCJul 14, 19:30 UTC1h 0m
2026-07-14 PDT6062 - Jul 14, 15:45 UTCJul 14, 17:00 UTC1h 15m
2026-07-14 PDT6062 - Jul 14, 11:45 UTCJul 14, 12:50 UTC1h 5m
2026-07-14 PDT5985 - Jul 14, 09:15 UTCJul 14, 10:10 UTC55m
2026-07-14 PDT5938 - Jul 14, 03:05 UTCJul 14, 03:50 UTC45m
2026-07-14 PDT5938 CLT → PHF Jul 14, 03:01 UTCJul 14, 03:48 UTC47m
2026-07-13 PDT6102 - Jul 13, 23:45 UTCJul 14, 01:00 UTC1h 15m
2026-07-13 PDT6102 GNV → CLT Jul 13, 23:42 UTCJul 14, 00:59 UTC1h 17m
2026-07-13 PDT6102 - Jul 13, 22:05 UTCJul 13, 23:10 UTC1h 5m
2026-07-13 PDT5809 - Jul 13, 18:55 UTCJul 13, 19:25 UTC30m
2026-07-13 PDT5809 - Jul 13, 17:15 UTCJul 13, 17:40 UTC25m
2026-07-13 PDT6073 - Jul 13, 15:15 UTCJul 13, 16:00 UTC45m
2026-07-13 PDT6073 - Jul 13, 13:45 UTCJul 13, 14:15 UTC30m
2026-07-13 PDT5967 - Jul 13, 10:55 UTCJul 13, 11:55 UTC1h 0m
2026-07-13 PDT5865 - Jul 13, 03:20 UTCJul 13, 04:15 UTC55m
2026-07-13 PDT5927 - Jul 13, 00:35 UTCJul 13, 01:35 UTC1h 0m
2026-07-13 PDT5927 TLH → CLT Jul 13, 00:34 UTCJul 13, 01:46 UTC1h 12m
2026-07-12 PDT5927 - Jul 12, 22:45 UTCJul 12, 23:50 UTC1h 5m
2026-07-12 PDT5823 - Jul 12, 20:40 UTCJul 12, 21:25 UTC45m
2026-07-12 PDT5823 ILM → CLT Jul 12, 20:34 UTCJul 12, 21:11 UTC37m
2026-07-12 PDT5823 - Jul 12, 18:45 UTCJul 12, 19:15 UTC30m
2026-07-12 PDT5824 - Jul 12, 16:15 UTCJul 12, 17:25 UTC1h 10m
2026-07-12 PDT5824 - Jul 12, 13:30 UTCJul 12, 14:35 UTC1h 5m
2026-07-12 PDT6009 - Jul 12, 11:05 UTCJul 12, 11:45 UTC40m
2026-07-12 PDT5812 - Jul 12, 01:45 UTCJul 12, 02:15 UTC30m
2026-07-12 PDT5812 CLT → OAJ Jul 12, 01:44 UTCJul 12, 02:12 UTC28m
2026-07-11 PDT5851 - Jul 11, 22:35 UTCJul 11, 23:10 UTC35m
2026-07-11 PDT5851 - Jul 11, 20:50 UTCJul 11, 21:25 UTC35m
2026-07-11 PDT6077 - Jul 11, 19:10 UTCJul 11, 19:30 UTC20m
2026-07-11 PDT6077 - Jul 11, 17:55 UTCJul 11, 18:05 UTC10m
2026-07-11 PDT5946 - Jul 11, 16:00 UTCJul 11, 16:30 UTC30m
2026-07-11 PDT5946 - Jul 11, 14:35 UTCJul 11, 14:55 UTC20m
2026-07-11 PDT6010 - Jul 11, 10:10 UTCJul 11, 11:10 UTC1h 0m
2026-07-11 PDT5945 - Jul 11, 04:50 UTCJul 11, 05:10 UTC20m
2026-07-11 PDT6114 - Jul 11, 02:20 UTCJul 11, 03:15 UTC55m
2026-07-11 PDT6114 - Jul 11, 00:30 UTCJul 11, 01:30 UTC1h 0m
2026-07-10 PDT5907 - Jul 10, 22:25 UTCJul 10, 23:20 UTC55m
2026-07-10 PDT5907 ROC → PHL Jul 10, 22:21 UTCJul 10, 23:12 UTC51m
2026-07-10 PDT5907 PHL → ROC Jul 10, 20:30 UTCJul 10, 21:20 UTC50m
2026-07-10 PDT5894 - Jul 10, 18:45 UTCJul 10, 19:20 UTC35m
2026-07-10 PDT5894 RIC → PHL Jul 10, 18:44 UTCJul 10, 19:19 UTC35m
2026-07-10 PDT5894 - Jul 10, 16:35 UTCJul 10, 17:15 UTC40m
2026-07-10 PDT5925 - Jul 10, 14:45 UTCJul 10, 15:35 UTC50m
2026-07-10 PDT5925 - Jul 10, 13:00 UTCJul 10, 13:50 UTC50m
2026-07-10 PDT6111 - Jul 10, 10:40 UTCJul 10, 11:25 UTC45m
2026-07-10 PDT6111 BDL → PHL Jul 10, 10:35 UTCJul 10, 11:22 UTC47m
2026-07-09 PDT9989 - Jul 9, 21:50 UTCJul 9, 22:50 UTC1h 0m
2026-07-09 PDT5895 - Jul 9, 20:10 UTCJul 9, 21:05 UTC55m
2026-07-09 PDT5894 - Jul 9, 16:25 UTCJul 9, 17:15 UTC50m
2026-07-09 PDT5894 RIC → PHL Jul 9, 16:24 UTCJul 9, 17:08 UTC44m

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 N677AE page for operator, model, and routing details .

Mode-S A8F5BE frequently asked

What is Mode-S code A8F5BE?
A8F5BE is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N677AE.
Where is Mode-S A8F5BE registered?
Mode-S code A8F5BE 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 A8F5BE broadcasting right now?
Yes. Mode-S A8F5BE is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8F5BE, octal 52172676, decimal 11,072,958.
What flights does A8F5BE operate?
Mode-S A8F5BE has broadcast 20 distinct callsigns, including PDT6121, PDT6131, PDT6124, PDT6011, PDT5958.