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sensors Mode-S transponder

A8FD2C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N679AE · EMBRAER ERJ-145 · operated by AMERICAN AIRLINES INC

Hex
A8FD2C
Octal
52176454
Decimal
11,074,860
Country
US
Tail
N679AE
Type
E145
No current signal · last broadcast 13h ago
Flights observed
809
Distinct callsigns
20
Country
US
Last broadcast
13h ago

Last known position

Most recent position reported by Mode-S A8FD2C.

Country allocation

The ICAO 24-bit address A8FD2C 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
PDT5910 - 18 2026-07-12
PDT5992 - 13 2026-06-29
PDT5957 - 10 2026-07-10
PDT5927 Piedmont Airlines 10 2026-06-02
PDT5798 - 10 2026-06-30
PDT5981 - 9 2026-07-04
PDT5822 - 9 2026-07-09
PDT6058 Piedmont Airlines 8 2026-05-06
PDT5868 Piedmont Airlines 8 2026-06-01
PDT5853 - 8 2026-07-13
PDT5831 Piedmont Airlines 8 2026-05-31
PDT6065 - 7 2026-07-10
PDT6016 - 7 2026-07-07
PDT6001 Piedmont Airlines 7 2026-05-13
PDT6000 Piedmont Airlines 7 2026-06-03
PDT5988 - 7 2026-07-07
PDT5980 Piedmont Airlines 7 2026-05-16
PDT5932 - 7 2026-07-12
PDT5859 Piedmont Airlines 7 2026-06-05
PDT6064 - 6 2026-07-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 PDT5853 - Jul 13, 17:35 UTCJul 13, 18:15 UTC40m
2026-07-13 PDT5853 - Jul 13, 16:00 UTCJul 13, 16:25 UTC25m
2026-07-13 PDT6050 - Jul 13, 13:25 UTCJul 13, 14:20 UTC55m
2026-07-13 PDT6050 - Jul 13, 12:05 UTCJul 13, 12:45 UTC40m
2026-07-13 PDT5940 - Jul 13, 00:50 UTCJul 13, 01:20 UTC30m
2026-07-12 PDT5940 - Jul 12, 23:45 UTCJul 13, 00:10 UTC25m
2026-07-12 PDT5932 - Jul 12, 21:45 UTCJul 12, 22:45 UTC1h 0m
2026-07-12 PDT5932 - Jul 12, 19:30 UTCJul 12, 20:35 UTC1h 5m
2026-07-12 PDT5910 - Jul 12, 15:05 UTCJul 12, 15:55 UTC50m
2026-07-12 PDT5910 SAV → CLT Jul 12, 15:06 UTCJul 12, 15:52 UTC46m
2026-07-12 PDT5910 - Jul 12, 13:35 UTCJul 12, 14:20 UTC45m
2026-07-12 PDT5872 - Jul 12, 09:25 UTCJul 12, 10:40 UTC1h 15m
2026-07-12 PDT5977 - Jul 12, 01:35 UTCJul 12, 02:50 UTC1h 15m
2026-07-11 PDT5825 - Jul 11, 22:25 UTCJul 11, 22:55 UTC30m
2026-07-11 PDT5825 - Jul 11, 21:05 UTCJul 11, 21:40 UTC35m
2026-07-11 PDT5789 - Jul 11, 19:10 UTCJul 11, 19:30 UTC20m
2026-07-11 PDT5789 - Jul 11, 18:05 UTCJul 11, 18:25 UTC20m
2026-07-11 PDT5906 - Jul 11, 15:50 UTCJul 11, 17:00 UTC1h 10m
2026-07-11 PDT5906 LEX → CLT Jul 11, 15:49 UTCJul 11, 16:47 UTC58m
2026-07-11 PDT5906 - Jul 11, 13:55 UTCJul 11, 15:05 UTC1h 10m
2026-07-11 PDT5872 - Jul 11, 09:25 UTCJul 11, 10:35 UTC1h 10m
2026-07-10 PDT6065 - Jul 10, 20:05 UTCJul 10, 21:20 UTC1h 15m
2026-07-10 PDT5883 - Jul 10, 17:15 UTCJul 10, 17:45 UTC30m
2026-07-10 PDT5883 MYR → CLT Jul 10, 17:03 UTCJul 10, 17:44 UTC41m
2026-07-10 PDT5883 - Jul 10, 15:50 UTCJul 10, 16:15 UTC25m
2026-07-10 PDT5962 PHL → MHT Jul 10, 13:15 UTCJul 10, 14:00 UTC45m
2026-07-10 PDT5962 PHL → MHT Jul 10, 13:15 UTCJul 10, 13:59 UTC44m
2026-07-10 PDT5882 - Jul 10, 02:35 UTCJul 10, 03:15 UTC40m
2026-07-10 PDT5882 CLT → ROA Jul 10, 02:30 UTCJul 10, 03:12 UTC42m
2026-07-10 PDT5957 - Jul 10, 00:35 UTCJul 10, 01:05 UTC30m
2026-07-09 PDT5957 - Jul 9, 23:10 UTCJul 9, 23:45 UTC35m
2026-07-09 PDT5822 - Jul 9, 17:10 UTCJul 9, 17:55 UTC45m
2026-07-09 PDT5822 ILM → CLT Jul 9, 17:06 UTCJul 9, 17:49 UTC43m
2026-07-09 PDT5822 - Jul 9, 15:35 UTCJul 9, 16:00 UTC25m
2026-07-09 PDT6105 - Jul 9, 12:25 UTCJul 9, 13:10 UTC45m
2026-07-09 PDT5787 - Jul 9, 01:45 UTCJul 9, 02:25 UTC40m
2026-07-07 PDT6067 - Jul 7, 21:50 UTCJul 7, 22:55 UTC1h 5m
2026-07-07 PDT6067 EVV → CLT Jul 7, 21:44 UTCJul 7, 22:52 UTC1h 8m
2026-07-07 PDT6067 - Jul 7, 19:45 UTCJul 7, 20:45 UTC1h 0m
2026-07-07 PDT5953 - Jul 7, 17:45 UTCJul 7, 18:20 UTC35m
2026-07-07 PDT5953 - Jul 7, 16:05 UTCJul 7, 16:35 UTC30m
2026-07-07 PDT6016 - Jul 7, 14:00 UTCJul 7, 14:35 UTC35m
2026-07-07 PDT6016 - Jul 7, 12:20 UTCJul 7, 12:45 UTC25m
2026-07-07 PDT5988 - Jul 7, 01:10 UTCJul 7, 02:20 UTC1h 10m
2026-07-06 PDT5998 - Jul 6, 22:35 UTCJul 6, 23:45 UTC1h 10m
2026-07-06 PDT5998 - Jul 6, 20:05 UTCJul 6, 20:40 UTC35m
2026-07-06 PDT6094 - Jul 6, 15:15 UTCJul 6, 16:35 UTC1h 20m
2026-07-06 PDT5901 ALB → PHL Jul 6, 12:09 UTCJul 6, 13:03 UTC54m
2026-07-05 PDT9980 - Jul 5, 23:45 UTCJul 6, 00:45 UTC1h 0m
2026-07-05 PDT5862 - Jul 5, 21:30 UTCJul 5, 22:45 UTC1h 15m

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 N679AE page for operator, model, and routing details .

Mode-S A8FD2C frequently asked

What is Mode-S code A8FD2C?
A8FD2C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N679AE.
Where is Mode-S A8FD2C registered?
Mode-S code A8FD2C 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 A8FD2C broadcasting right now?
No active broadcast right now. Last signal was 13h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8FD2C, octal 52176454, decimal 11,074,860.
What flights does A8FD2C operate?
Mode-S A8FD2C has broadcast 20 distinct callsigns, including PDT5910, PDT5992, PDT5957, PDT5927, PDT5798.