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sensors Mode-S transponder

A8D6BD

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N669MB · EMBRAER ERJ-145 · operated by AMERICAN AIRLINES INC

Hex
A8D6BD
Octal
52153275
Decimal
11,065,021
Country
US
Tail
N669MB
Type
E145
No current signal · last broadcast Jul 26, 20:45 UTC
Flights observed
917
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:45 UTC

Last known position

Most recent position reported by Mode-S A8D6BD.

Country allocation

The ICAO 24-bit address A8D6BD 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
PDT5824 Piedmont Airlines 15 2026-07-22
PDT6028 - 14 2026-06-12
PDT6128 Piedmont Airlines 12 2026-05-26
PDT5952 - 11 2026-07-11
PDT5867 - 10 2026-06-18
PDT6046 Piedmont Airlines 9 2026-07-20
PDT6026 Piedmont Airlines 9 2026-06-14
PDT6019 - 9 2026-07-19
PDT5978 - 9 2026-06-22
PDT5852 - 9 2026-07-08
PDT5823 - 9 2026-07-15
PDT6124 - 8 2026-06-20
PDT6057 Piedmont Airlines 8 2026-04-29
PDT6032 - 8 2026-06-16
PDT6031 Piedmont Airlines 8 2026-06-11
PDT6000 - 8 2026-07-09
PDT5997 - 8 2026-06-28
PDT5964 Piedmont Airlines 8 2026-05-01
PDT5950 - 8 2026-07-10
PDT5869 - 8 2026-07-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 PDT5832 GSO → PHL Jul 26, 19:35 UTCJul 26, 20:45 UTC1h 10m
2026-07-26 PDT5832 GSO → PHL Jul 26, 17:25 UTCJul 26, 18:30 UTC1h 5m
2026-07-26 PDT6042 PHL → GSP Jul 26, 15:35 UTCJul 26, 16:10 UTC35m
2026-07-26 PDT6042 PHL → GSP Jul 26, 14:25 UTCJul 26, 14:50 UTC25m
2026-07-26 PDT6098 PHL → MDT Jul 26, 11:15 UTCJul 26, 12:00 UTC45m
2026-07-26 PDT6071 MDT → BOS Jul 26, 03:35 UTCJul 26, 04:10 UTC35m
2026-07-26 PDT5927 PHL → SYR Jul 26, 00:45 UTCJul 26, 01:45 UTC1h 0m
2026-07-25 PDT5927 PHL → SYR Jul 25, 23:00 UTCJul 26, 00:00 UTC1h 0m
2026-07-25 PDT6069 PHL → SYR Jul 25, 20:50 UTCJul 25, 21:30 UTC40m
2026-07-25 PDT6069 PHL → SYR Jul 25, 19:00 UTCJul 25, 19:30 UTC30m
2026-07-25 PDT5838 PHL → RDU Jul 25, 15:50 UTCJul 25, 17:05 UTC1h 15m
2026-07-25 PDT5838 PHL → RDU Jul 25, 13:25 UTCJul 25, 14:45 UTC1h 20m
2026-07-25 PDT5856 GSO → PHL Jul 25, 10:45 UTCJul 25, 11:15 UTC30m
2026-07-25 PDT5881 BNA → PHL Jul 25, 03:30 UTCJul 25, 03:45 UTC15m
2026-07-25 PDT6043 PHL → FWA Jul 25, 00:45 UTCJul 25, 01:05 UTC20m
2026-07-25 PDT6043 PHL → FWA Jul 25, 00:39 UTCJul 25, 01:05 UTC26m
2026-07-24 PDT6043 PHL → FWA Jul 24, 23:30 UTCJul 24, 23:55 UTC25m
2026-07-24 PDT5890 SBY → PHL Jul 24, 18:00 UTCJul 24, 18:45 UTC45m
2026-07-24 PDT5890 SBY → PHL Jul 24, 16:35 UTCJul 24, 17:20 UTC45m
2026-07-24 PDT6080 PHL → GSO Jul 24, 14:25 UTCJul 24, 15:25 UTC1h 0m
2026-07-24 PDT6080 PHL → GSO Jul 24, 14:18 UTCJul 24, 15:21 UTC1h 3m
2026-07-24 PDT6080 PHL → GSO Jul 24, 12:35 UTCJul 24, 13:35 UTC1h 0m
2026-07-24 PDT5975 LYH → CLT Jul 24, 10:25 UTCJul 24, 11:00 UTC35m
2026-07-23 PDT6113 ROC → PHL Jul 23, 19:40 UTCJul 23, 20:05 UTC25m
2026-07-23 PDT5810 MHT → PHL Jul 23, 17:19 UTCJul 23, 18:21 UTC1h 2m
2026-07-23 PDT5810 MHT → PHL Jul 23, 15:25 UTCJul 23, 16:30 UTC1h 5m
2026-07-23 PDT5933 PHL → MHT Jul 23, 13:10 UTCJul 23, 14:10 UTC1h 0m
2026-07-23 PDT5834 CLT → ROA Jul 23, 01:15 UTCJul 23, 01:50 UTC35m
2026-07-22 PDT6065 BOS → ROC Jul 22, 22:20 UTCJul 22, 23:50 UTC1h 30m
2026-07-22 PDT6065 BOS → ROC Jul 22, 20:05 UTCJul 22, 21:35 UTC1h 30m
2026-07-22 PDT5824 BGR → PHL Jul 22, 16:20 UTCJul 22, 17:35 UTC1h 15m
2026-07-22 PDT5824 BGR → PHL Jul 22, 14:00 UTCJul 22, 15:05 UTC1h 5m
2026-07-22 PDT5967 PVD → PHL Jul 22, 11:10 UTCJul 22, 11:45 UTC35m
2026-07-22 PDT5865 CLT → MGM Jul 22, 03:15 UTCJul 22, 04:05 UTC50m
2026-07-22 PDT5865 CLT → MGM Jul 22, 03:10 UTCJul 22, 04:06 UTC56m
2026-07-22 PDT5804 MHT → PHL Jul 22, 00:30 UTCJul 22, 01:15 UTC45m
2026-07-21 PDT5804 MHT → PHL Jul 21, 23:10 UTCJul 21, 23:40 UTC30m
2026-07-21 PDT6069 - Jul 21, 21:20 UTCJul 21, 22:05 UTC45m
2026-07-21 PDT6069 - Jul 21, 19:15 UTCJul 21, 19:55 UTC40m
2026-07-21 PDT5967 PVD → PHL Jul 21, 10:40 UTCJul 21, 11:40 UTC1h 0m
2026-07-21 PDT5967 PVD → PHL Jul 21, 10:33 UTCJul 21, 11:36 UTC1h 3m
2026-07-21 PDT5865 - Jul 21, 03:25 UTCJul 21, 04:20 UTC55m
2026-07-21 PDT6049 BGR → PHL Jul 21, 00:35 UTCJul 21, 01:20 UTC45m
2026-07-20 PDT6049 BGR → PHL Jul 20, 22:50 UTCJul 20, 23:35 UTC45m
2026-07-20 PDT6046 MHT → PHL Jul 20, 20:30 UTCJul 20, 21:00 UTC30m
2026-07-20 PDT6046 MHT → PHL Jul 20, 20:25 UTCJul 20, 20:54 UTC29m
2026-07-20 PDT6046 MHT → PHL Jul 20, 19:10 UTCJul 20, 19:25 UTC15m
2026-07-20 PDT5824 BGR → PHL Jul 20, 16:15 UTCJul 20, 17:30 UTC1h 15m
2026-07-20 PDT5824 BGR → PHL Jul 20, 13:40 UTCJul 20, 14:45 UTC1h 5m
2026-07-20 PDT6009 - Jul 20, 11:10 UTCJul 20, 11:50 UTC40m

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 N669MB page for operator, model, and routing details .

Mode-S A8D6BD frequently asked

What is Mode-S code A8D6BD?
A8D6BD is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N669MB.
Where is Mode-S A8D6BD registered?
Mode-S code A8D6BD 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 A8D6BD broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8D6BD, octal 52153275, decimal 11,065,021.
What flights does A8D6BD operate?
Mode-S A8D6BD has broadcast 20 distinct callsigns, including PDT5824, PDT6028, PDT6128, PDT5952, PDT5867.