Apparatus

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sensors Mode-S transponder

A10B6B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N1668C · CESSNA 172 Skyhawk · operated by CE-172 AIRCRAFT LLC

Hex
A10B6B
Octal
50205553
Decimal
10,554,219
Country
US
Tail
N1668C
Type
C172
No current signal · last broadcast 8h ago
Flights observed
166
Distinct callsigns
1
Country
US
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S A10B6B.

Country allocation

The ICAO 24-bit address A10B6B 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 1 distinct

Callsign Airline Flights Last seen
CXK379 - 166 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 CXK379 OGD → OGD Jul 17, 14:44 UTCJul 17, 15:55 UTC1h 10m
2026-07-15 CXK379 OGD → OGD Jul 15, 12:25 UTCJul 15, 13:35 UTC1h 10m
2026-07-10 CXK379 - Jul 10, 19:40 UTCJul 10, 20:35 UTC55m
2026-07-10 CXK379 - Jul 10, 17:30 UTCJul 10, 19:05 UTC1h 35m
2026-07-09 CXK379 OGD → OGD Jul 9, 14:15 UTCJul 9, 15:45 UTC1h 30m
2026-07-07 CXK379 - Jul 7, 17:20 UTCJul 7, 18:40 UTC1h 20m
2026-07-07 CXK379 - Jul 7, 14:20 UTCJul 7, 15:30 UTC1h 10m
2026-07-07 CXK379 - Jul 7, 11:20 UTCJul 7, 12:35 UTC1h 15m
2026-07-07 CXK379 - Jul 7, 04:40 UTCJul 7, 05:50 UTC1h 10m
2026-07-07 CXK379 - Jul 7, 01:25 UTCJul 7, 02:25 UTC1h 0m
2026-07-06 CXK379 OGD → OGD Jul 6, 14:20 UTCJul 6, 15:50 UTC1h 30m
2026-07-04 CXK379 - Jul 4, 01:20 UTCJul 4, 02:10 UTC50m
2026-07-03 CXK379 - Jul 3, 22:55 UTCJul 3, 23:45 UTC50m
2026-07-03 CXK379 - Jul 3, 16:10 UTCJul 3, 16:55 UTC45m
2026-07-03 CXK379 - Jul 3, 14:15 UTCJul 3, 15:10 UTC55m
2026-07-02 CXK379 VGT → VGT Jul 2, 15:30 UTCJul 2, 16:05 UTC35m
2026-07-02 CXK379 VGT → VGT Jul 2, 13:05 UTCJul 2, 14:00 UTC55m
2026-06-29 CXK379 VGT → VGT Jun 29, 18:39 UTCJun 29, 20:40 UTC2h 0m
2026-06-29 CXK379 - Jun 29, 15:49 UTCJun 29, 16:44 UTC55m
2026-06-29 CXK379 VGT → VGT Jun 29, 15:34 UTCJun 29, 15:45 UTC10m
2026-06-29 CXK379 VGT → VGT Jun 29, 15:24 UTCJun 29, 15:30 UTC5m
2026-06-28 CXK379 HII → VGT Jun 28, 20:39 UTCJun 28, 21:45 UTC1h 5m
2026-06-28 CXK379 VGT → HII Jun 28, 18:25 UTCJun 28, 19:44 UTC1h 20m
2026-06-26 CXK379 VGT → VGT Jun 26, 01:39 UTCJun 26, 02:24 UTC45m
2026-06-21 CXK379 VGT → VGT Jun 21, 17:54 UTCJun 21, 18:10 UTC15m
2026-06-21 CXK379 VGT → VGT Jun 21, 17:24 UTCJun 21, 17:45 UTC20m
2026-06-21 CXK379 - Jun 21, 17:10 UTCJun 21, 17:20 UTC10m
2026-06-21 CXK379 VGT → VGT Jun 21, 16:49 UTCJun 21, 17:05 UTC15m
2026-06-21 CXK379 VGT → VGT Jun 21, 16:25 UTCJun 21, 16:44 UTC20m
2026-06-21 CXK379 VGT → VGT Jun 21, 13:59 UTCJun 21, 15:19 UTC1h 20m
2026-06-20 CXK379 VGT → VGT Jun 20, 17:29 UTCJun 20, 18:49 UTC1h 20m
2026-06-19 CXK379 VGT → VGT Jun 19, 14:59 UTCJun 19, 17:04 UTC2h 5m
2026-06-18 CXK379 - Jun 18, 15:05 UTCJun 18, 16:05 UTC1h 0m
2026-06-18 CXK379 - Jun 18, 12:30 UTCJun 18, 13:25 UTC55m
2026-06-17 CXK379 VGT → VGT Jun 17, 13:50 UTCJun 17, 14:00 UTC10m
2026-06-17 CXK379 VGT → VGT Jun 17, 13:30 UTCJun 17, 13:45 UTC15m
2026-06-17 CXK379 - Jun 17, 13:05 UTCJun 17, 13:15 UTC10m
2026-06-17 CXK379 VGT → VGT Jun 17, 12:30 UTCJun 17, 12:35 UTC5m
2026-06-16 CXK379 - Jun 16, 13:50 UTCJun 16, 14:20 UTC30m
2026-06-16 CXK379 - Jun 16, 12:14 UTCJun 16, 13:19 UTC1h 5m
2026-06-16 CXK379 VGT → VGT Jun 16, 11:49 UTCJun 16, 12:00 UTC10m
2026-06-15 CXK379 VGT → VGT Jun 15, 09:15 UTCJun 15, 10:15 UTC1h 0m
2026-06-14 CXK379 - Jun 14, 17:10 UTCJun 14, 18:10 UTC1h 0m
2026-06-14 CXK379 - Jun 14, 15:15 UTCJun 14, 16:25 UTC1h 10m
2026-06-12 CXK379 - Jun 12, 21:25 UTCJun 12, 22:25 UTC1h 0m
2026-06-12 CXK379 - Jun 12, 17:45 UTCJun 12, 18:50 UTC1h 5m
2026-06-11 CXK379 - Jun 11, 16:20 UTCJun 11, 17:45 UTC1h 25m
2026-06-11 CXK379 VGT → VGT Jun 11, 16:05 UTCJun 11, 16:15 UTC10m
2026-06-11 CXK379 VGT → VGT Jun 11, 13:45 UTCJun 11, 14:35 UTC50m
2026-06-11 CXK379 VGT → VGT Jun 11, 13:20 UTCJun 11, 13:40 UTC20m

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 N1668C page for operator, model, and routing details .

Mode-S A10B6B frequently asked

What is Mode-S code A10B6B?
A10B6B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N1668C.
Where is Mode-S A10B6B registered?
Mode-S code A10B6B 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 A10B6B broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A10B6B, octal 50205553, decimal 10,554,219.
What flights does A10B6B operate?
Mode-S A10B6B has broadcast 1 distinct callsign, including CXK379.