Apparatus

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sensors Mode-S transponder

A83F56

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N630SK · BOMBARDIER Regional Jet CRJ-700 · operated by SKYWEST AIRLINES INC

Hex
A83F56
Octal
52037526
Decimal
11,026,262
Country
US
Tail
N630SK
Type
CRJ7
No current signal · last broadcast 11d ago
Flights observed
617
Distinct callsigns
20
Country
US
Last broadcast
11d ago

Last known position

Most recent position reported by Mode-S A83F56.

Country allocation

The ICAO 24-bit address A83F56 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
SKW6228 - 13 2026-06-30
SKW6428 SkyWest Airlines 10 2026-05-10
SKW6386 SkyWest Airlines 10 2026-06-04
SKW6204 - 10 2026-06-26
SKW4909 - 10 2026-06-15
SKW6202 - 9 2026-06-26
SKW6433 SkyWest Airlines 8 2026-06-28
SKW6414 SkyWest Airlines 8 2026-05-06
SKW6261 SkyWest Airlines 8 2026-06-29
SKW6246 SkyWest Airlines 8 2026-05-11
SKW5003 - 8 2026-07-01
SKW6456 - 7 2026-06-24
SKW6426 - 7 2026-06-15
SKW6249 - 7 2026-06-27
SKW4987 - 7 2026-06-29
SKW4969 SkyWest Airlines 7 2026-07-02
SKW4904 SkyWest Airlines 7 2026-05-09
SKW6493 - 6 2026-06-23
SKW6387 SkyWest Airlines 6 2026-06-08
SKW6348 SkyWest Airlines 6 2026-06-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-02 SKW9908 - Jul 2, 17:45 UTCJul 2, 21:05 UTC3h 20m
2026-07-02 SKW9908 ORD → TUS Jul 2, 17:43 UTCJul 2, 21:00 UTC3h 17m
2026-07-02 SKW4969 DFW → LRD Jul 2, 14:50 UTCJul 2, 15:40 UTC50m
2026-07-02 SKW4969 DFW → LRD Jul 2, 13:00 UTCJul 2, 13:50 UTC50m
2026-07-02 SKW6358 - Jul 2, 10:30 UTCJul 2, 10:50 UTC20m
2026-07-02 SKW6358 MKE → ORD Jul 2, 10:25 UTCJul 2, 10:49 UTC24m
2026-07-02 SKW4940 - Jul 2, 00:30 UTCJul 2, 00:45 UTC15m
2026-07-01 SKW6200 DFW → SJT Jul 1, 21:05 UTCJul 1, 22:15 UTC1h 10m
2026-07-01 SKW6200 DFW → SJT Jul 1, 19:00 UTCJul 1, 20:05 UTC1h 5m
2026-07-01 SKW5003 - Jul 1, 16:05 UTCJul 1, 17:35 UTC1h 30m
2026-07-01 SKW5003 HSV → ORD Jul 1, 16:08 UTCJul 1, 17:35 UTC1h 27m
2026-07-01 SKW5003 - Jul 1, 13:40 UTCJul 1, 14:50 UTC1h 10m
2026-07-01 SKW4914 - Jul 1, 11:50 UTCJul 1, 12:30 UTC40m
2026-07-01 SKW4914 MKE → ORD Jul 1, 11:48 UTCJul 1, 12:19 UTC31m
2026-07-01 SKW4940 - Jul 1, 00:20 UTCJul 1, 00:45 UTC25m
2026-07-01 SKW4940 ORD → MKE Jul 1, 00:20 UTCJul 1, 00:44 UTC24m
2026-06-30 SKW4833 - Jun 30, 20:50 UTCJun 30, 22:00 UTC1h 10m
2026-06-30 SKW4833 LWB → ORD Jun 30, 20:40 UTCJun 30, 21:56 UTC1h 16m
2026-06-30 SKW4830 - Jun 30, 19:25 UTCJun 30, 19:55 UTC30m
2026-06-30 SKW6228 - Jun 30, 14:45 UTCJun 30, 16:15 UTC1h 30m
2026-06-30 SKW6228 LIT → CLT Jun 30, 14:41 UTCJun 30, 16:14 UTC1h 33m
2026-06-30 SKW6228 - Jun 30, 12:30 UTCJun 30, 13:45 UTC1h 15m
2026-06-30 SKW4827 - Jun 30, 09:05 UTCJun 30, 09:50 UTC45m
2026-06-30 SKW4827 SHD → CLT Jun 30, 09:02 UTCJun 30, 09:48 UTC46m
2026-06-30 SKW4832 - Jun 30, 00:30 UTCJun 30, 01:50 UTC1h 20m
2026-06-29 SKW4987 - Jun 29, 22:10 UTCJun 29, 22:55 UTC45m
2026-06-29 SKW4987 FNT → ORD Jun 29, 22:09 UTCJun 29, 22:53 UTC44m
2026-06-29 SKW4987 - Jun 29, 20:30 UTCJun 29, 21:09 UTC40m
2026-06-29 SKW6261 DFW → SBN Jun 29, 18:39 UTCJun 29, 19:05 UTC25m
2026-06-29 SKW6261 DFW → SBN Jun 29, 18:42 UTCJun 29, 18:49 UTC7m
2026-06-29 SKW6261 DFW → SBN Jun 29, 17:34 UTCJun 29, 17:55 UTC20m
2026-06-29 SKW4953 - Jun 29, 15:00 UTCJun 29, 15:49 UTC50m
2026-06-29 SKW4953 CMH → ORD Jun 29, 14:58 UTCJun 29, 15:47 UTC49m
2026-06-29 SKW4953 - Jun 29, 12:24 UTCJun 29, 13:14 UTC50m
2026-06-29 SKW6358 - Jun 29, 10:20 UTCJun 29, 10:50 UTC30m
2026-06-29 SKW4940 - Jun 29, 00:44 UTCJun 29, 01:05 UTC20m
2026-06-29 SKW4940 ORD → MKE Jun 29, 00:48 UTCJun 29, 01:03 UTC15m
2026-06-28 SKW6200 DFW → SJT Jun 28, 22:10 UTCJun 28, 23:29 UTC1h 20m
2026-06-28 SKW6200 DFW → SJT Jun 28, 19:59 UTCJun 28, 20:59 UTC1h 0m
2026-06-28 SKW6445 - Jun 28, 16:49 UTCJun 28, 18:14 UTC1h 25m
2026-06-28 SKW6445 - Jun 28, 13:34 UTCJun 28, 14:54 UTC1h 20m
2026-06-28 SKW6433 PHX → BFL Jun 28, 01:59 UTCJun 28, 02:10 UTC10m
2026-06-28 SKW6433 PHX → BFL Jun 28, 00:04 UTCJun 28, 02:10 UTC2h 5m
2026-06-28 SKW6433 PHX → BFL Jun 28, 00:09 UTCJun 28, 01:43 UTC1h 34m
2026-06-27 SKW6433 PHX → BFL Jun 27, 21:29 UTCJun 27, 23:00 UTC1h 30m
2026-06-27 SKW6249 - Jun 27, 19:00 UTCJun 27, 19:59 UTC1h 0m
2026-06-27 SKW6249 MCI → ORD Jun 27, 18:57 UTCJun 27, 19:54 UTC57m
2026-06-27 SKW6249 - Jun 27, 16:44 UTCJun 27, 17:44 UTC1h 0m
2026-06-27 SKW6391 - Jun 27, 14:14 UTCJun 27, 14:49 UTC35m
2026-06-27 SKW6391 GRR → ORD Jun 27, 14:20 UTCJun 27, 14:37 UTC17m

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 N630SK page for operator, model, and routing details .

Mode-S A83F56 frequently asked

What is Mode-S code A83F56?
A83F56 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N630SK.
Where is Mode-S A83F56 registered?
Mode-S code A83F56 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 A83F56 broadcasting right now?
No active broadcast right now. Last signal was 11d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A83F56, octal 52037526, decimal 11,026,262.
What flights does A83F56 operate?
Mode-S A83F56 has broadcast 20 distinct callsigns, including SKW6228, SKW6428, SKW6386, SKW6204, SKW4909.