Apparatus

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sensors Mode-S transponder

A8418F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N631BC · SAAB 340 · operated by IBC AIRWAYS INC

Hex
A8418F
Octal
52040617
Decimal
11,026,831
Country
US
Tail
N631BC
Type
SF34
No current signal · last broadcast 7h ago
Flights observed
55
Distinct callsigns
7
Country
US
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S A8418F.

Country allocation

The ICAO 24-bit address A8418F 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 7 distinct

Callsign Airline Flights Last seen
CSQ101 IBC Airways 21 2026-05-29
CSQ102 IBC Airways 20 2026-05-29
CSQ631 IBC Airways 5 2026-05-26
CSQ343 IBC Airways 4 2026-05-04
CSQ212 IBC Airways 2 2026-05-28
CSQ211 IBC Airways 2 2026-05-28
CSQ344 IBC Airways 1 2026-04-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 CSQ102 NAS → MIA May 29, 23:45 UTCMay 30, 00:05 UTC20m
2026-05-29 CSQ101 MIA → NAS May 29, 15:40 UTCMay 29, 16:05 UTC25m
2026-05-28 CSQ212 GCM → MIA May 28, 23:35 UTCMay 29, 00:05 UTC30m
2026-05-28 CSQ211 MIA → GCM May 28, 16:10 UTCMay 28, 16:50 UTC40m
2026-05-28 CSQ102 NAS → MIA May 28, 00:05 UTCMay 28, 00:35 UTC30m
2026-05-27 CSQ101 MIA → NAS May 27, 16:00 UTCMay 27, 16:35 UTC35m
2026-05-26 CSQ631 SNU → MIA May 26, 16:30 UTCMay 26, 16:45 UTC15m
2026-05-25 CSQ631 SNU → MIA May 25, 19:05 UTCMay 25, 19:30 UTC25m
2026-05-20 CSQ102 NAS → MIA May 20, 23:35 UTCMay 21, 00:00 UTC25m
2026-05-20 CSQ101 MIA → NAS May 20, 16:40 UTCMay 20, 17:05 UTC25m
2026-05-18 CSQ102 NAS → MIA May 18, 23:25 UTCMay 18, 23:45 UTC20m
2026-05-18 CSQ101 MIA → NAS May 18, 16:35 UTCMay 18, 17:00 UTC25m
2026-05-15 CSQ102 NAS → MIA May 15, 23:10 UTCMay 15, 23:40 UTC30m
2026-05-15 CSQ101 MIA → NAS May 15, 15:45 UTCMay 15, 16:15 UTC30m
2026-05-14 CSQ102 NAS → MIA May 14, 23:30 UTCMay 14, 23:55 UTC25m
2026-05-14 CSQ101 MIA → NAS May 14, 15:30 UTCMay 14, 16:00 UTC30m
2026-05-13 CSQ102 NAS → MIA May 13, 23:35 UTCMay 13, 23:50 UTC15m
2026-05-13 CSQ101 MIA → NAS May 13, 15:35 UTCMay 13, 16:05 UTC30m
2026-05-12 CSQ102 NAS → MIA May 12, 20:40 UTCMay 12, 21:01 UTC20m
2026-05-12 CSQ101 MIA → NAS May 12, 15:50 UTCMay 12, 16:20 UTC30m
2026-05-11 CSQ101 MIA → NAS May 11, 14:30 UTCMay 11, 15:00 UTC30m
2026-05-09 CSQ102 NAS → MIA May 9, 00:15 UTCMay 9, 00:40 UTC25m
2026-05-08 CSQ101 MIA → NAS May 8, 15:55 UTCMay 8, 16:25 UTC30m
2026-05-07 CSQ102 NAS → MIA May 7, 23:24 UTCMay 7, 23:55 UTC30m
2026-05-07 CSQ101 MIA → NAS May 7, 15:25 UTCMay 7, 15:50 UTC25m
2026-05-06 CSQ102 NAS → MIA May 6, 23:40 UTCMay 7, 00:10 UTC30m
2026-05-06 CSQ101 MIA → NAS May 6, 15:35 UTCMay 6, 16:05 UTC30m
2026-05-05 CSQ102 NAS → MIA May 5, 23:05 UTCMay 5, 23:35 UTC30m
2026-05-05 CSQ101 MIA → NAS May 5, 15:01 UTCMay 5, 15:25 UTC25m
2026-05-04 CSQ343 MIA → PLS May 4, 21:15 UTCMay 4, 21:50 UTC35m
2026-05-04 CSQ343 MIA → PLS May 4, 14:55 UTCMay 4, 15:25 UTC30m
2026-05-01 CSQ102 NAS → MIA May 1, 23:30 UTCMay 1, 23:55 UTC25m
2026-05-01 CSQ101 MIA → NAS May 1, 15:35 UTCMay 1, 16:00 UTC25m
2026-04-30 CSQ102 NAS → MIA Apr 30, 23:35 UTCApr 30, 23:55 UTC20m
2026-04-30 CSQ101 MIA → NAS Apr 30, 16:30 UTCApr 30, 16:50 UTC20m
2026-04-29 CSQ343 MIA → PLS Apr 29, 15:25 UTCApr 29, 15:55 UTC30m
2026-04-28 CSQ102 NAS → MIA Apr 28, 23:29 UTCApr 28, 23:54 UTC25m
2026-04-28 CSQ101 MIA → NAS Apr 28, 16:10 UTCApr 28, 16:35 UTC25m
2026-04-27 CSQ102 NAS → MIA Apr 27, 23:45 UTCApr 28, 00:10 UTC25m
2026-04-27 CSQ101 MIA → NAS Apr 27, 17:00 UTCApr 27, 17:20 UTC20m
2026-04-24 CSQ102 NAS → MIA Apr 24, 23:40 UTCApr 25, 00:05 UTC25m
2026-04-24 CSQ101 MIA → NAS Apr 24, 16:05 UTCApr 24, 16:25 UTC20m
2026-04-24 CSQ631 SNU → MIA Apr 24, 13:15 UTCApr 24, 13:35 UTC20m
2026-04-23 CSQ631 SNU → MIA Apr 23, 12:25 UTCApr 23, 12:55 UTC30m
2026-04-21 CSQ631 SNU → MIA Apr 21, 16:01 UTCApr 21, 16:15 UTC15m
2026-04-20 CSQ102 NAS → MIA Apr 20, 23:30 UTCApr 20, 23:50 UTC20m
2026-04-20 CSQ101 MIA → NAS Apr 20, 15:20 UTCApr 20, 15:40 UTC20m
2026-04-17 CSQ344 PLS → MIA Apr 17, 21:40 UTCApr 17, 22:10 UTC30m
2026-04-17 CSQ343 MIA → PLS Apr 17, 15:50 UTCApr 17, 16:15 UTC25m
2026-04-16 CSQ102 NAS → MIA Apr 16, 23:30 UTCApr 17, 00:05 UTC35m

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 N631BC page for operator, model, and routing details .

Mode-S A8418F frequently asked

What is Mode-S code A8418F?
A8418F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N631BC.
Where is Mode-S A8418F registered?
Mode-S code A8418F 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 A8418F broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8418F, octal 52040617, decimal 11,026,831.
What flights does A8418F operate?
Mode-S A8418F has broadcast 7 distinct callsigns, including CSQ101, CSQ102, CSQ631, CSQ343, CSQ212.