Apparatus

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sensors Mode-S transponder

A846C4

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N632SK · BOMBARDIER Regional Jet CRJ-700 · operated by SKYWEST AIRLINES INC

Hex
A846C4
Octal
52043304
Decimal
11,028,164
Country
US
Tail
N632SK
Type
CRJ7
No current signal · last broadcast 2d ago
Flights observed
544
Distinct callsigns
20
Country
US
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S A846C4.

Country allocation

The ICAO 24-bit address A846C4 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
SKW6299 - 9 2026-06-28
SKW4956 SkyWest Airlines 9 2026-06-26
SKW6337 - 8 2026-06-25
SKW6288 - 8 2026-06-26
SKW4936 - 7 2026-06-21
SKW6390 - 6 2026-07-10
SKW6386 - 6 2026-07-01
SKW6342 - 6 2026-06-22
SKW6246 SkyWest Airlines 6 2026-05-16
SKW4910 SkyWest Airlines 6 2026-05-30
SKW4894 SkyWest Airlines 6 2026-06-19
SKW6517 SkyWest Airlines 5 2026-06-14
SKW6433 SkyWest Airlines 5 2026-06-24
SKW6428 SkyWest Airlines 5 2026-05-17
SKW6414 SkyWest Airlines 5 2026-06-29
SKW6402 SkyWest Airlines 5 2026-05-14
SKW6363 SkyWest Airlines 5 2026-04-18
SKW6335 - 5 2026-06-26
SKW6203 - 5 2026-06-15
SKW5004 SkyWest Airlines 5 2026-04-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-11 SKW9913 - Jul 11, 16:00 UTCJul 11, 17:05 UTC1h 5m
2026-07-11 SKW9913 GJT → PSP Jul 11, 15:56 UTCJul 11, 17:17 UTC1h 21m
2026-07-11 SKW6442 - Jul 11, 04:30 UTCJul 11, 06:05 UTC1h 35m
2026-07-11 SKW6234 - Jul 11, 02:50 UTCJul 11, 03:20 UTC30m
2026-07-11 SKW6234 LAW → DFW Jul 11, 02:55 UTCJul 11, 03:17 UTC22m
2026-07-11 SKW6234 DFW → LAW Jul 11, 00:00 UTCJul 11, 00:30 UTC30m
2026-07-10 SKW6390 COS → DFW Jul 10, 21:35 UTCJul 10, 22:55 UTC1h 20m
2026-07-10 SKW6390 DFW → COS Jul 10, 18:10 UTCJul 10, 19:35 UTC1h 25m
2026-07-10 SKW4890 ACT → DFW Jul 10, 16:15 UTCJul 10, 16:50 UTC35m
2026-07-10 SKW4890 ACT → DFW Jul 10, 16:12 UTCJul 10, 16:58 UTC46m
2026-07-10 SKW4890 DFW → ACT Jul 10, 15:10 UTCJul 10, 15:30 UTC20m
2026-07-10 SKW4816 - Jul 10, 11:25 UTCJul 10, 13:25 UTC2h 0m
2026-07-10 SKW4817 - Jul 10, 03:40 UTCJul 10, 05:45 UTC2h 5m
2026-07-10 SKW6437 - Jul 10, 00:20 UTCJul 10, 01:00 UTC40m
2026-07-10 SKW6437 MLU → DFW Jul 10, 00:03 UTCJul 10, 00:58 UTC55m
2026-07-09 SKW6437 - Jul 9, 22:10 UTCJul 9, 22:45 UTC35m
2026-07-09 SKW6390 COS → DFW Jul 9, 19:25 UTCJul 9, 20:50 UTC1h 25m
2026-07-09 SKW6390 COS → DFW Jul 9, 19:25 UTCJul 9, 20:43 UTC1h 18m
2026-07-09 SKW6390 - Jul 9, 16:40 UTCJul 9, 18:05 UTC1h 25m
2026-07-09 SKW4938 - Jul 9, 13:40 UTCJul 9, 15:00 UTC1h 20m
2026-07-09 SKW4938 SAF → DFW Jul 9, 13:46 UTCJul 9, 14:52 UTC1h 6m
2026-07-09 SKW6210 - Jul 9, 01:50 UTCJul 9, 04:00 UTC2h 10m
2026-07-03 SKW6291 RST → ORD Jul 3, 00:15 UTCJul 3, 01:45 UTC1h 30m
2026-07-03 SKW6291 RST → ORD Jul 3, 00:13 UTCJul 3, 01:45 UTC1h 32m
2026-07-02 SKW6291 - Jul 2, 22:10 UTCJul 2, 23:00 UTC50m
2026-07-02 SKW6249 - Jul 2, 18:55 UTCJul 2, 20:05 UTC1h 10m
2026-07-02 SKW6249 - Jul 2, 16:45 UTCJul 2, 17:45 UTC1h 0m
2026-07-02 SKW6263 - Jul 2, 13:50 UTCJul 2, 14:15 UTC25m
2026-07-02 SKW6263 - Jul 2, 12:30 UTCJul 2, 12:55 UTC25m
2026-07-02 SKW4976 - Jul 2, 09:40 UTCJul 2, 10:30 UTC50m
2026-07-02 SKW6498 - Jul 2, 03:15 UTCJul 2, 04:05 UTC50m
2026-07-02 SKW4909 - Jul 2, 00:45 UTCJul 2, 01:40 UTC55m
2026-07-01 SKW4909 - Jul 1, 23:05 UTCJul 1, 23:55 UTC50m
2026-07-01 SKW6386 - Jul 1, 18:25 UTCJul 1, 20:35 UTC2h 10m
2026-07-01 SKW4929 - Jul 1, 14:25 UTCJul 1, 16:30 UTC2h 5m
2026-07-01 SKW4992 - Jul 1, 13:00 UTCJul 1, 13:35 UTC35m
2026-07-01 SKW4992 DFW → AUS Jul 1, 12:56 UTCJul 1, 13:30 UTC34m
2026-07-01 SKW4897 - Jul 1, 10:15 UTCJul 1, 10:55 UTC40m
2026-07-01 SKW4891 LAX → PDX Jul 1, 03:00 UTCJul 1, 03:35 UTC35m
2026-07-01 SKW4891 LAX → PDX Jul 1, 02:55 UTCJul 1, 03:42 UTC47m
2026-06-30 SKW6233 - Jun 30, 23:20 UTCJul 1, 01:15 UTC1h 55m
2026-06-30 SKW6233 - Jun 30, 20:10 UTCJun 30, 22:00 UTC1h 50m
2026-06-30 SKW4918 - Jun 30, 17:25 UTCJun 30, 19:05 UTC1h 40m
2026-06-30 SKW4918 GJT → DFW Jun 30, 17:20 UTCJun 30, 19:04 UTC1h 44m
2026-06-30 SKW4918 - Jun 30, 14:20 UTCJun 30, 16:10 UTC1h 50m
2026-06-30 SKW6511 - Jun 30, 11:35 UTCJun 30, 12:20 UTC45m
2026-06-30 SKW6339 PHX → SJC Jun 30, 01:14 UTCJun 30, 01:45 UTC31m
2026-06-30 SKW6339 PHX → SJC Jun 30, 01:10 UTCJun 30, 01:44 UTC34m
2026-06-29 SKW6191 - Jun 29, 22:30 UTCJun 29, 23:34 UTC1h 5m
2026-06-29 SKW6191 ROW → DFW Jun 29, 22:24 UTCJun 29, 23:34 UTC1h 10m

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 N632SK page for operator, model, and routing details .

Mode-S A846C4 frequently asked

What is Mode-S code A846C4?
A846C4 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N632SK.
Where is Mode-S A846C4 registered?
Mode-S code A846C4 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 A846C4 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A846C4, octal 52043304, decimal 11,028,164.
What flights does A846C4 operate?
Mode-S A846C4 has broadcast 20 distinct callsigns, including SKW6299, SKW4956, SKW6337, SKW6288, SKW4936.