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sensors Mode-S transponder

AA0300

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N744SK · BOMBARDIER Regional Jet CRJ-700 · operated by SKYWEST AIRLINES INC

Hex
AA0300
Octal
52401400
Decimal
11,141,888
Country
US
Tail
N744SK
Type
CRJ7
No current signal · last broadcast Jul 26, 21:10 UTC
Flights observed
678
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:10 UTC

Last known position

Most recent position reported by Mode-S AA0300.

Country allocation

The ICAO 24-bit address AA0300 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
SKW5000 SkyWest Airlines 14 2026-05-06
SKW4954 - 12 2026-07-03
SKW6229 SkyWest Airlines 10 2026-07-26
SKW6444 - 9 2026-06-21
SKW6284 - 9 2026-07-14
SKW4999 SkyWest Airlines 9 2026-07-18
SKW6511 - 8 2026-07-19
SKW6466 - 8 2026-07-20
SKW6446 SkyWest Airlines 8 2026-07-20
SKW6392 SkyWest Airlines 8 2026-07-23
SKW6238 - 8 2026-07-16
SKW4918 - 8 2026-07-22
SKW6408 SkyWest Airlines 7 2026-05-08
SKW6234 SkyWest Airlines 7 2026-07-21
SKW4891 SkyWest Airlines 7 2026-05-07
SKW4829 SkyWest Airlines 7 2026-07-08
SKW6488 SkyWest Airlines 6 2026-06-04
SKW6450 SkyWest Airlines 6 2026-05-24
SKW6438 SkyWest Airlines 6 2026-06-30
SKW6437 SkyWest Airlines 6 2026-05-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW6229 MLI → ORD Jul 26, 20:45 UTCJul 26, 21:10 UTC25m
2026-07-26 SKW6352 ORD → HSV Jul 26, 18:35 UTCJul 26, 19:30 UTC55m
2026-07-26 SKW6352 ORD → HSV Jul 26, 18:35 UTCJul 26, 19:26 UTC51m
2026-07-26 SKW6352 ORD → HSV Jul 26, 17:10 UTCJul 26, 17:50 UTC40m
2026-07-26 SKW6209 MAF → DFW Jul 26, 13:20 UTCJul 26, 15:25 UTC2h 5m
2026-07-26 SKW6210 DRO → DFW Jul 26, 00:15 UTCJul 26, 02:30 UTC2h 15m
2026-07-25 SKW4913 PHX → YUM Jul 25, 21:20 UTCJul 25, 22:30 UTC1h 10m
2026-07-25 SKW4913 PHX → YUM Jul 25, 19:15 UTCJul 25, 20:25 UTC1h 10m
2026-07-25 SKW9909 BHM → ORD Jul 25, 14:59 UTCJul 25, 17:46 UTC2h 47m
2026-07-25 SKW9909 BHM → ORD Jul 25, 14:50 UTCJul 25, 18:00 UTC3h 10m
2026-07-23 SKW6383 ORD → OKC Jul 23, 19:15 UTCJul 23, 19:45 UTC30m
2026-07-23 SKW6383 ORD → OKC Jul 23, 19:09 UTCJul 23, 19:37 UTC28m
2026-07-23 SKW6383 ORD → OKC Jul 23, 17:45 UTCJul 23, 18:10 UTC25m
2026-07-23 SKW6392 OKC → PHX Jul 23, 14:10 UTCJul 23, 16:10 UTC2h 0m
2026-07-23 SKW6392 OKC → PHX Jul 23, 14:16 UTCJul 23, 16:01 UTC1h 45m
2026-07-23 SKW6206 PHX → SFO Jul 23, 12:55 UTCJul 23, 13:30 UTC35m
2026-07-23 SKW4897 - Jul 23, 10:15 UTCJul 23, 10:55 UTC40m
2026-07-23 SKW4897 AMA → DFW Jul 23, 10:06 UTCJul 23, 10:54 UTC48m
2026-07-23 SKW4933 DFW → CLL Jul 23, 03:15 UTCJul 23, 03:55 UTC40m
2026-07-23 SKW4933 DFW → CLL Jul 23, 03:14 UTCJul 23, 03:56 UTC42m
2026-07-23 SKW4956 DFW → SJT Jul 23, 00:15 UTCJul 23, 01:45 UTC1h 30m
2026-07-22 SKW4956 DFW → SJT Jul 22, 20:55 UTCJul 22, 22:15 UTC1h 20m
2026-07-22 SKW4918 - Jul 22, 17:15 UTCJul 22, 18:50 UTC1h 35m
2026-07-22 SKW4918 - Jul 22, 14:15 UTCJul 22, 16:00 UTC1h 45m
2026-07-22 SKW6331 - Jul 22, 11:30 UTCJul 22, 12:35 UTC1h 5m
2026-07-22 SKW6333 ORD → RST Jul 22, 02:50 UTCJul 22, 03:50 UTC1h 0m
2026-07-21 SKW4960 TUL → PHX Jul 21, 23:20 UTCJul 22, 00:50 UTC1h 30m
2026-07-21 SKW4960 TUL → PHX Jul 21, 20:45 UTCJul 21, 22:00 UTC1h 15m
2026-07-21 SKW4984 GJT → ORD Jul 21, 17:35 UTCJul 21, 18:55 UTC1h 20m
2026-07-21 SKW4984 GJT → ORD Jul 21, 15:00 UTCJul 21, 16:25 UTC1h 25m
2026-07-21 SKW6331 - Jul 21, 11:20 UTCJul 21, 12:25 UTC1h 5m
2026-07-21 SKW6333 - Jul 21, 02:50 UTCJul 21, 03:50 UTC1h 0m
2026-07-21 SKW6234 ORD → ICT Jul 21, 00:10 UTCJul 21, 00:40 UTC30m
2026-07-21 SKW6234 ORD → ICT Jul 21, 00:08 UTCJul 21, 00:36 UTC28m
2026-07-20 SKW6234 ORD → ICT Jul 20, 22:45 UTCJul 20, 23:20 UTC35m
2026-07-20 SKW6446 PHX → ELP Jul 20, 20:10 UTCJul 20, 21:30 UTC1h 20m
2026-07-20 SKW6446 PHX → ELP Jul 20, 17:20 UTCJul 20, 18:40 UTC1h 20m
2026-07-20 SKW6466 - Jul 20, 13:15 UTCJul 20, 15:30 UTC2h 15m
2026-07-20 SKW6466 IDA → DFW Jul 20, 13:11 UTCJul 20, 15:32 UTC2h 21m
2026-07-20 SKW6467 DFW → IDA Jul 20, 01:30 UTCJul 20, 03:35 UTC2h 5m
2026-07-19 SKW6191 - Jul 19, 22:30 UTCJul 19, 23:40 UTC1h 10m
2026-07-19 SKW6191 - Jul 19, 20:25 UTCJul 19, 21:30 UTC1h 5m
2026-07-19 SKW4918 - Jul 19, 17:10 UTCJul 19, 18:45 UTC1h 35m
2026-07-19 SKW4918 GJT → DFW Jul 19, 16:56 UTCJul 19, 18:43 UTC1h 47m
2026-07-19 SKW4918 - Jul 19, 14:20 UTCJul 19, 15:50 UTC1h 30m
2026-07-19 SKW6511 - Jul 19, 11:00 UTCJul 19, 11:40 UTC40m
2026-07-19 SKW6511 SHV → DFW Jul 19, 10:57 UTCJul 19, 11:38 UTC41m
2026-07-19 SKW6339 - Jul 19, 01:05 UTCJul 19, 01:35 UTC30m
2026-07-18 SKW6191 - Jul 18, 22:35 UTCJul 18, 23:45 UTC1h 10m
2026-07-18 SKW6191 ROW → DFW Jul 18, 22:32 UTCJul 18, 23:45 UTC1h 13m

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 N744SK page for operator, model, and routing details .

Mode-S AA0300 frequently asked

What is Mode-S code AA0300?
AA0300 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N744SK.
Where is Mode-S AA0300 registered?
Mode-S code AA0300 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 AA0300 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA0300, octal 52401400, decimal 11,141,888.
What flights does AA0300 operate?
Mode-S AA0300 has broadcast 20 distinct callsigns, including SKW5000, SKW4954, SKW6229, SKW6444, SKW6284.