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 11h ago
Flights observed
99
Distinct callsigns
16
Country
US
Last broadcast
11h 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 16 distinct

Callsign Airline Flights Last seen
CSQ101 - 32 2026-07-13
CSQ102 - 30 2026-07-13
CSQ343 - 7 2026-06-17
CSQ631 IBC Airways 5 2026-05-26
CSQ212 - 5 2026-07-03
CSQ344 - 4 2026-06-17
CSQ211 - 4 2026-07-03
CSQ104 - 3 2026-07-08
CSQ111 IBC Airways 2 2026-07-08
CSQ725 - 1 2026-06-18
CSQ706 IBC Airways 1 2026-06-26
CSQ705 IBC Airways 1 2026-06-22
CSQ346 IBC Airways 1 2026-06-04
CSQ345 IBC Airways 1 2026-06-04
CSQ112 IBC Airways 1 2026-06-10
CSQ103 - 1 2026-07-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 CSQ102 - Jul 13, 22:55 UTCJul 13, 23:20 UTC25m
2026-07-13 CSQ101 - Jul 13, 15:15 UTCJul 13, 15:40 UTC25m
2026-07-08 CSQ104 - Jul 8, 20:15 UTCJul 8, 20:45 UTC30m
2026-07-08 CSQ111 MIA → NAS Jul 8, 16:25 UTCJul 8, 16:55 UTC30m
2026-07-06 CSQ104 - Jul 6, 17:10 UTCJul 6, 17:40 UTC30m
2026-07-06 CSQ103 - Jul 6, 14:40 UTCJul 6, 14:55 UTC15m
2026-07-03 CSQ212 - Jul 3, 23:55 UTCJul 4, 00:30 UTC35m
2026-07-03 CSQ211 - Jul 3, 15:35 UTCJul 3, 16:20 UTC45m
2026-07-02 CSQ102 - Jul 2, 23:35 UTCJul 3, 00:00 UTC25m
2026-07-02 CSQ101 - Jul 2, 15:35 UTCJul 2, 16:00 UTC25m
2026-06-29 CSQ104 - Jun 29, 19:49 UTCJun 29, 20:19 UTC30m
2026-06-29 CSQ111 MIA → NAS Jun 29, 15:24 UTCJun 29, 15:54 UTC30m
2026-06-26 CSQ706 CYA → MIA Jun 26, 23:34 UTCJun 27, 00:05 UTC30m
2026-06-22 CSQ705 MIA → CYA Jun 22, 13:29 UTCJun 22, 14:10 UTC40m
2026-06-19 CSQ212 - Jun 19, 23:54 UTCJun 20, 00:24 UTC30m
2026-06-19 CSQ211 - Jun 19, 15:54 UTCJun 19, 16:25 UTC30m
2026-06-18 CSQ212 - Jun 18, 23:45 UTCJun 19, 00:20 UTC34m
2026-06-18 CSQ725 - Jun 18, 15:50 UTCJun 18, 16:30 UTC40m
2026-06-17 CSQ344 - Jun 17, 21:45 UTCJun 17, 22:15 UTC30m
2026-06-17 CSQ343 - Jun 17, 15:35 UTCJun 17, 16:05 UTC30m
2026-06-16 CSQ102 - Jun 16, 23:30 UTCJun 16, 23:45 UTC15m
2026-06-16 CSQ101 - Jun 16, 16:00 UTCJun 16, 16:35 UTC35m
2026-06-15 CSQ102 - Jun 15, 22:40 UTCJun 15, 22:59 UTC20m
2026-06-15 CSQ101 - Jun 15, 14:05 UTCJun 15, 14:34 UTC30m
2026-06-12 CSQ102 - Jun 12, 23:35 UTCJun 13, 00:00 UTC25m
2026-06-12 CSQ101 MIA → NAS Jun 12, 15:45 UTCJun 12, 16:15 UTC30m
2026-06-11 CSQ344 PLS → MIA Jun 11, 21:10 UTCJun 11, 21:45 UTC35m
2026-06-11 CSQ343 MIA → PLS Jun 11, 15:40 UTCJun 11, 16:10 UTC30m
2026-06-10 CSQ112 NAS → MIA Jun 10, 17:20 UTCJun 10, 17:50 UTC30m
2026-06-10 CSQ101 MIA → NAS Jun 10, 14:25 UTCJun 10, 14:50 UTC25m
2026-06-10 CSQ102 NAS → MIA Jun 10, 00:00 UTCJun 10, 00:30 UTC30m
2026-06-09 CSQ101 MIA → NAS Jun 9, 16:45 UTCJun 9, 17:15 UTC30m
2026-06-08 CSQ102 NAS → MIA Jun 8, 23:35 UTCJun 9, 00:15 UTC40m
2026-06-08 CSQ101 MIA → NAS Jun 8, 15:10 UTCJun 8, 15:35 UTC25m
2026-06-05 CSQ344 PLS → MIA Jun 5, 22:05 UTCJun 5, 22:30 UTC25m
2026-06-05 CSQ343 MIA → PLS Jun 5, 15:25 UTCJun 5, 15:50 UTC25m
2026-06-04 CSQ346 PLS → MIA Jun 4, 22:10 UTCJun 4, 22:40 UTC30m
2026-06-04 CSQ345 MIA → PLS Jun 4, 16:00 UTCJun 4, 16:30 UTC30m
2026-06-03 CSQ102 NAS → MIA Jun 3, 23:55 UTCJun 4, 00:30 UTC35m
2026-06-03 CSQ101 MIA → NAS Jun 3, 15:50 UTCJun 3, 16:20 UTC30m
2026-06-03 CSQ102 NAS → MIA Jun 3, 00:25 UTCJun 3, 01:00 UTC35m
2026-06-02 CSQ101 MIA → NAS Jun 2, 15:45 UTCJun 2, 16:15 UTC30m
2026-06-02 CSQ102 NAS → MIA Jun 2, 00:45 UTCJun 2, 01:30 UTC45m
2026-06-01 CSQ101 MIA → NAS Jun 1, 15:20 UTCJun 1, 15:45 UTC25m
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

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 11h 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 16 distinct callsigns, including CSQ101, CSQ102, CSQ343, CSQ631, CSQ212.