Apparatus

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sensors Mode-S transponder

A8DF8B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N671BC · SAAB 340 · operated by IBC AIRWAYS INC

Hex
A8DF8B
Octal
52157613
Decimal
11,067,275
Country
US
Tail
N671BC
Type
SF34
No current signal · last broadcast 20h ago
Flights observed
73
Distinct callsigns
18
Country
US
Last broadcast
20h ago

Last known position

Most recent position reported by Mode-S A8DF8B.

Country allocation

The ICAO 24-bit address A8DF8B 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 18 distinct

Callsign Airline Flights Last seen
CSQ104 - 12 2026-06-26
CSQ103 - 11 2026-06-26
CSQ102 - 11 2026-07-09
CSQ101 - 11 2026-07-09
CSQ705 - 5 2026-07-13
CSQ706 IBC Airways 4 2026-07-03
CSQ212 IBC Airways 3 2026-05-08
CSQ211 IBC Airways 3 2026-05-08
CSQ346 - 2 2026-06-24
CSQ344 - 2 2026-07-10
CSQ343 - 2 2026-07-10
CSQ671 IBC Airways 1 2026-05-18
CSQ348 IBC Airways 1 2026-04-23
CSQ347 IBC Airways 1 2026-04-23
CSQ345 - 1 2026-06-24
CSQ122 IBC Airways 1 2026-06-06
CSQ121 IBC Airways 1 2026-06-06
CSQ111 IBC Airways 1 2026-05-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 CSQ705 - Jul 13, 13:40 UTCJul 13, 14:20 UTC40m
2026-07-10 CSQ344 - Jul 10, 21:55 UTCJul 10, 22:30 UTC35m
2026-07-10 CSQ343 - Jul 10, 15:30 UTCJul 10, 16:00 UTC30m
2026-07-09 CSQ102 - Jul 9, 23:10 UTCJul 9, 23:35 UTC25m
2026-07-09 CSQ101 - Jul 9, 15:30 UTCJul 9, 16:05 UTC35m
2026-07-08 CSQ102 - Jul 8, 22:50 UTCJul 8, 23:15 UTC25m
2026-07-08 CSQ101 - Jul 8, 15:35 UTCJul 8, 16:05 UTC30m
2026-07-07 CSQ102 - Jul 7, 23:30 UTCJul 7, 23:55 UTC25m
2026-07-07 CSQ101 - Jul 7, 15:30 UTCJul 7, 16:00 UTC30m
2026-07-06 CSQ102 - Jul 6, 22:45 UTCJul 6, 23:05 UTC20m
2026-07-06 CSQ101 - Jul 6, 14:45 UTCJul 6, 15:05 UTC20m
2026-07-03 CSQ706 CYA → MIA Jul 3, 22:30 UTCJul 3, 22:55 UTC25m
2026-06-29 CSQ705 MIA → CYA Jun 29, 13:19 UTCJun 29, 13:59 UTC40m
2026-06-26 CSQ104 - Jun 26, 18:09 UTCJun 26, 18:44 UTC35m
2026-06-26 CSQ103 - Jun 26, 16:00 UTCJun 26, 16:24 UTC25m
2026-06-25 CSQ102 - Jun 25, 22:54 UTCJun 25, 23:19 UTC25m
2026-06-25 CSQ101 - Jun 25, 15:24 UTCJun 25, 15:54 UTC30m
2026-06-24 CSQ346 - Jun 24, 21:09 UTCJun 24, 21:50 UTC40m
2026-06-24 CSQ345 - Jun 24, 15:44 UTCJun 24, 16:19 UTC35m
2026-06-22 CSQ104 - Jun 22, 17:25 UTCJun 22, 17:55 UTC30m
2026-06-22 CSQ103 - Jun 22, 14:40 UTCJun 22, 14:59 UTC20m
2026-06-12 CSQ706 CYA → MIA Jun 12, 20:30 UTCJun 12, 21:05 UTC35m
2026-06-08 CSQ705 MIA → CYA Jun 8, 13:50 UTCJun 8, 14:30 UTC40m
2026-06-06 CSQ122 GGT → MIA Jun 6, 17:24 UTCJun 6, 18:00 UTC35m
2026-06-06 CSQ121 MIA → GGT Jun 6, 12:45 UTCJun 6, 13:15 UTC30m
2026-06-05 CSQ706 CYA → MIA Jun 5, 22:40 UTCJun 5, 23:15 UTC35m
2026-06-01 CSQ705 - Jun 1, 13:35 UTCJun 1, 14:10 UTC35m
2026-05-29 CSQ706 CYA → MIA May 29, 22:25 UTCMay 29, 22:55 UTC30m
2026-05-25 CSQ705 MIA → CYA May 25, 14:35 UTCMay 25, 15:15 UTC40m
2026-05-23 CSQ102 NAS → MIA May 23, 00:40 UTCMay 23, 01:05 UTC25m
2026-05-22 CSQ101 MIA → NAS May 22, 15:55 UTCMay 22, 16:25 UTC30m
2026-05-21 CSQ102 NAS → MIA May 21, 23:15 UTCMay 21, 23:40 UTC25m
2026-05-21 CSQ101 MIA → NAS May 21, 15:45 UTCMay 21, 16:10 UTC25m
2026-05-20 CSQ104 FPO → MIA May 20, 18:00 UTCMay 20, 18:25 UTC25m
2026-05-20 CSQ103 MIA → FPO May 20, 15:35 UTCMay 20, 15:55 UTC20m
2026-05-19 CSQ102 NAS → MIA May 19, 23:45 UTCMay 20, 00:10 UTC25m
2026-05-19 CSQ101 MIA → NAS May 19, 16:10 UTCMay 19, 16:35 UTC25m
2026-05-18 CSQ671 MIA → FLL May 18, 18:20 UTCMay 18, 20:05 UTC1h 44m
2026-05-15 CSQ104 FPO → MIA May 15, 18:25 UTCMay 15, 19:00 UTC35m
2026-05-15 CSQ103 MIA → FPO May 15, 15:25 UTCMay 15, 15:45 UTC20m
2026-05-13 CSQ104 FPO → MIA May 13, 19:35 UTCMay 13, 20:00 UTC25m
2026-05-13 CSQ103 MIA → FPO May 13, 17:05 UTCMay 13, 17:25 UTC20m
2026-05-11 CSQ104 FPO → MIA May 11, 20:30 UTCMay 11, 21:00 UTC30m
2026-05-11 CSQ111 MIA → NAS May 11, 15:30 UTCMay 11, 16:00 UTC30m
2026-05-08 CSQ212 GCM → MIA May 8, 23:40 UTCMay 9, 00:10 UTC30m
2026-05-08 CSQ211 MIA → GCM May 8, 15:50 UTCMay 8, 16:25 UTC35m
2026-05-06 CSQ104 FPO → MIA May 6, 18:05 UTCMay 6, 18:35 UTC30m
2026-05-06 CSQ103 MIA → FPO May 6, 15:25 UTCMay 6, 15:55 UTC30m
2026-05-04 CSQ104 FPO → MIA May 4, 20:35 UTCMay 4, 21:15 UTC40m
2026-05-04 CSQ103 MIA → FPO May 4, 18:15 UTCMay 4, 18:30 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 N671BC page for operator, model, and routing details .

Mode-S A8DF8B frequently asked

What is Mode-S code A8DF8B?
A8DF8B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N671BC.
Where is Mode-S A8DF8B registered?
Mode-S code A8DF8B 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 A8DF8B broadcasting right now?
No active broadcast right now. Last signal was 20h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8DF8B, octal 52157613, decimal 11,067,275.
What flights does A8DF8B operate?
Mode-S A8DF8B has broadcast 18 distinct callsigns, including CSQ104, CSQ103, CSQ102, CSQ101, CSQ705.