Apparatus

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sensors Mode-S transponder

A7EA48

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N609SK · BOMBARDIER Regional Jet CRJ-700 · operated by SKYWEST AIRLINES INC

Hex
A7EA48
Octal
51765110
Decimal
11,004,488
Country
US
Tail
N609SK
Type
CRJ7
No current signal · last broadcast Jul 26, 21:05 UTC
Flights observed
600
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:05 UTC

Last known position

Most recent position reported by Mode-S A7EA48.

Country allocation

The ICAO 24-bit address A7EA48 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
SKW6288 - 13 2026-07-15
SKW6385 - 9 2026-07-16
SKW6207 SkyWest Airlines 9 2026-05-24
SKW6355 SkyWest Airlines 8 2026-07-19
SKW6436 - 7 2026-07-04
SKW6245 - 7 2026-06-27
SKW6235 - 7 2026-06-29
SKW6191 SkyWest Airlines 7 2026-07-23
SKW4955 SkyWest Airlines 7 2026-06-02
SKW4917 - 7 2026-07-21
SKW6340 - 6 2026-07-07
SKW6335 - 6 2026-07-15
SKW6210 - 6 2026-07-14
SKW4996 - 6 2026-07-18
SKW4956 SkyWest Airlines 6 2026-07-06
SKW9921 SkyWest Airlines 5 2026-05-19
SKW6465 SkyWest Airlines 5 2026-06-01
SKW6445 - 5 2026-07-13
SKW6418 SkyWest Airlines 5 2026-06-05
SKW6390 SkyWest Airlines 5 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW6386 LBB → DFW Jul 26, 19:00 UTCJul 26, 21:05 UTC2h 5m
2026-07-26 SKW4929 DFW → DRO Jul 26, 14:25 UTCJul 26, 16:25 UTC2h 0m
2026-07-26 SKW4929 DFW → DRO Jul 26, 14:21 UTCJul 26, 16:44 UTC2h 23m
2026-07-26 SKW4992 ICT → ORD Jul 26, 12:55 UTCJul 26, 13:30 UTC35m
2026-07-25 SKW6295 PHX → SFO Jul 25, 21:20 UTCJul 26, 00:55 UTC3h 35m
2026-07-25 SKW5002 ORD → RST Jul 25, 17:50 UTCJul 25, 19:20 UTC1h 30m
2026-07-25 SKW5002 ORD → RST Jul 25, 15:05 UTCJul 25, 16:25 UTC1h 20m
2026-07-25 SKW6408 ORD → FNT Jul 25, 11:50 UTCJul 25, 13:20 UTC1h 30m
2026-07-25 SKW6408 ORD → FNT Jul 25, 11:46 UTCJul 25, 13:15 UTC1h 29m
2026-07-25 SKW6267 DFW → COS Jul 25, 00:35 UTCJul 25, 00:40 UTC5m
2026-07-24 SKW6267 DFW → COS Jul 24, 22:50 UTCJul 25, 00:40 UTC1h 50m
2026-07-24 SKW6267 DFW → COS Jul 24, 22:49 UTCJul 25, 00:18 UTC1h 29m
2026-07-24 SKW6446 PHX → ELP Jul 24, 19:55 UTCJul 24, 21:25 UTC1h 30m
2026-07-24 SKW6446 PHX → ELP Jul 24, 17:35 UTCJul 24, 19:00 UTC1h 25m
2026-07-24 SKW6466 IDA → DFW Jul 24, 13:20 UTCJul 24, 15:35 UTC2h 15m
2026-07-24 SKW6466 IDA → DFW Jul 24, 13:10 UTCJul 24, 15:24 UTC2h 14m
2026-07-24 SKW6467 DFW → IDA Jul 24, 01:28 UTCJul 24, 03:53 UTC2h 25m
2026-07-24 SKW6467 DFW → IDA Jul 24, 01:25 UTCJul 24, 03:45 UTC2h 20m
2026-07-23 SKW6191 BNA → ORD Jul 23, 22:20 UTCJul 23, 23:30 UTC1h 10m
2026-07-23 SKW6191 BNA → ORD Jul 23, 22:16 UTCJul 23, 23:26 UTC1h 10m
2026-07-23 SKW6191 BNA → ORD Jul 23, 20:15 UTCJul 23, 21:25 UTC1h 10m
2026-07-23 SKW4918 - Jul 23, 17:10 UTCJul 23, 18:50 UTC1h 40m
2026-07-23 SKW4918 - Jul 23, 14:15 UTCJul 23, 16:00 UTC1h 45m
2026-07-23 SKW6331 BTV → ORD Jul 23, 11:10 UTCJul 23, 12:20 UTC1h 10m
2026-07-23 SKW6333 ORD → RST Jul 23, 02:45 UTCJul 23, 03:45 UTC1h 0m
2026-07-22 SKW6233 STL → ORD Jul 22, 22:50 UTCJul 23, 00:40 UTC1h 50m
2026-07-22 SKW6233 STL → ORD Jul 22, 19:50 UTCJul 22, 21:40 UTC1h 50m
2026-07-22 SKW4963 SJC → LAX Jul 22, 16:40 UTCJul 22, 18:25 UTC1h 45m
2026-07-22 SKW4963 SJC → LAX Jul 22, 13:50 UTCJul 22, 15:10 UTC1h 20m
2026-07-22 SKW4933 DFW → CLL Jul 22, 02:50 UTCJul 22, 03:30 UTC40m
2026-07-22 SKW6234 ORD → ICT Jul 22, 00:05 UTCJul 22, 00:35 UTC30m
2026-07-21 SKW6234 ORD → ICT Jul 21, 22:45 UTCJul 21, 23:05 UTC20m
2026-07-21 SKW6390 COS → DFW Jul 21, 19:20 UTCJul 21, 20:40 UTC1h 20m
2026-07-21 SKW6390 COS → DFW Jul 21, 16:40 UTCJul 21, 18:00 UTC1h 20m
2026-07-21 SKW6390 COS → DFW Jul 21, 16:38 UTCJul 21, 18:05 UTC1h 27m
2026-07-21 SKW4917 PVU → DFW Jul 21, 12:40 UTCJul 21, 14:50 UTC2h 10m
2026-07-21 SKW4917 PVU → DFW Jul 21, 12:45 UTCJul 21, 14:44 UTC1h 59m
2026-07-21 SKW4886 DFW → PVU Jul 21, 02:25 UTCJul 21, 04:35 UTC2h 10m
2026-07-20 SKW6337 - Jul 20, 22:20 UTCJul 20, 23:05 UTC45m
2026-07-20 SKW6337 SHV → DFW Jul 20, 22:19 UTCJul 20, 23:00 UTC41m
2026-07-20 SKW6337 DFW → SHV Jul 20, 20:50 UTCJul 20, 21:30 UTC40m
2026-07-20 SKW6413 SJC → PHX Jul 20, 17:55 UTCJul 20, 18:40 UTC45m
2026-07-20 SKW6413 SJC → PHX Jul 20, 17:50 UTCJul 20, 18:37 UTC47m
2026-07-20 SKW6413 SJC → PHX Jul 20, 16:10 UTCJul 20, 16:55 UTC45m
2026-07-20 SKW6203 ASE → ORD Jul 20, 13:35 UTCJul 20, 14:10 UTC35m
2026-07-20 SKW238P PHX → OKC Jul 20, 02:10 UTCJul 20, 04:10 UTC2h 0m
2026-07-19 SKW6455 TIJ → PHX Jul 19, 23:20 UTCJul 20, 00:15 UTC55m
2026-07-19 SKW6455 TIJ → PHX Jul 19, 23:19 UTCJul 20, 00:14 UTC55m
2026-07-19 SKW6455 TIJ → PHX Jul 19, 21:25 UTCJul 19, 22:10 UTC45m
2026-07-19 SKW6383 - Jul 19, 19:20 UTCJul 19, 19:50 UTC30m

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 N609SK page for operator, model, and routing details .

Mode-S A7EA48 frequently asked

What is Mode-S code A7EA48?
A7EA48 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N609SK.
Where is Mode-S A7EA48 registered?
Mode-S code A7EA48 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 A7EA48 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A7EA48, octal 51765110, decimal 11,004,488.
What flights does A7EA48 operate?
Mode-S A7EA48 has broadcast 20 distinct callsigns, including SKW6288, SKW6385, SKW6207, SKW6355, SKW6436.