Apparatus

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sensors Mode-S transponder

AA01DE

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N744EV · BOMBARDIER Regional Jet CRJ-700 · operated by SKYWEST AIRLINES INC

Hex
AA01DE
Octal
52400736
Decimal
11,141,598
Country
US
Tail
N744EV
Type
CRJ7
No current signal · last broadcast Jul 26, 21:25 UTC
Flights observed
740
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:25 UTC

Last known position

Most recent position reported by Mode-S AA01DE.

Country allocation

The ICAO 24-bit address AA01DE 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
SKW6255 SkyWest Airlines 14 2026-05-27
SKW6335 - 12 2026-07-13
SKW6191 SkyWest Airlines 12 2026-07-26
SKW6465 SkyWest Airlines 10 2026-07-21
SKW6250 - 10 2026-06-22
SKW6203 SkyWest Airlines 10 2026-07-24
SKW4949 SkyWest Airlines 10 2026-06-11
SKW6363 SkyWest Airlines 9 2026-06-12
SKW6235 - 9 2026-06-17
SKW6232 - 9 2026-07-15
SKW6194 SkyWest Airlines 9 2026-07-17
SKW6466 SkyWest Airlines 8 2026-07-25
SKW6452 SkyWest Airlines 8 2026-05-07
SKW6436 SkyWest Airlines 8 2026-05-20
SKW6236 SkyWest Airlines 8 2026-05-03
SKW4987 - 8 2026-06-23
SKW6427 - 7 2026-06-16
SKW6390 - 7 2026-07-03
SKW6362 SkyWest Airlines 7 2026-05-07
SKW6299 SkyWest Airlines 7 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW6191 BNA → ORD Jul 26, 20:25 UTCJul 26, 21:25 UTC1h 0m
2026-07-26 SKW6217 ORD → BNA Jul 26, 18:25 UTCJul 26, 19:00 UTC35m
2026-07-26 SKW6217 ORD → BNA Jul 26, 16:05 UTCJul 26, 16:45 UTC40m
2026-07-26 SKW6414 SLC → ORD Jul 26, 12:45 UTCJul 26, 14:15 UTC1h 30m
2026-07-26 SKW6414 SLC → ORD Jul 26, 12:29 UTCJul 26, 14:11 UTC1h 42m
2026-07-26 SKW6442 ORD → ASE Jul 26, 05:00 UTCJul 26, 06:30 UTC1h 30m
2026-07-26 SKW6442 ORD → ASE Jul 26, 04:59 UTCJul 26, 06:44 UTC1h 45m
2026-07-26 SKW6355 CVG → ORD Jul 26, 00:05 UTCJul 26, 01:05 UTC1h 0m
2026-07-26 SKW6355 CVG → ORD Jul 26, 00:03 UTCJul 26, 01:02 UTC59m
2026-07-25 SKW6355 CVG → ORD Jul 25, 22:05 UTCJul 25, 22:40 UTC35m
2026-07-25 SKW6299 ORD → STL Jul 25, 19:30 UTCJul 25, 20:30 UTC1h 0m
2026-07-25 SKW6299 ORD → STL Jul 25, 19:05 UTCJul 25, 20:22 UTC1h 17m
2026-07-25 SKW6299 ORD → STL Jul 25, 16:55 UTCJul 25, 19:30 UTC2h 35m
2026-07-25 SKW6299 ORD → STL Jul 25, 16:48 UTCJul 25, 18:04 UTC1h 16m
2026-07-25 SKW6466 IDA → DFW Jul 25, 13:15 UTCJul 25, 15:30 UTC2h 15m
2026-07-25 SKW6467 DFW → IDA Jul 25, 02:15 UTCJul 25, 04:35 UTC2h 20m
2026-07-24 SKW4960 TUL → PHX Jul 24, 23:45 UTCJul 25, 01:15 UTC1h 30m
2026-07-24 SKW4960 TUL → PHX Jul 24, 21:00 UTCJul 24, 22:25 UTC1h 25m
2026-07-24 SKW6413 SJC → PHX Jul 24, 18:55 UTCJul 24, 19:40 UTC45m
2026-07-24 SKW6413 SJC → PHX Jul 24, 18:45 UTCJul 24, 19:37 UTC52m
2026-07-24 SKW6413 SJC → PHX Jul 24, 17:20 UTCJul 24, 18:05 UTC45m
2026-07-24 SKW6203 ASE → ORD Jul 24, 15:35 UTCJul 24, 16:10 UTC35m
2026-07-24 SKW9910 LAX → SFO Jul 24, 14:05 UTCJul 24, 14:50 UTC45m
2026-07-24 SKW4822 DFW → FLG Jul 24, 10:45 UTCJul 24, 12:10 UTC1h 25m
2026-07-24 SKW4823 PDX → PHX Jul 24, 02:50 UTCJul 24, 04:15 UTC1h 25m
2026-07-23 SKW6343 DAY → ORD Jul 23, 15:35 UTCJul 23, 16:15 UTC40m
2026-07-23 SKW6343 DAY → ORD Jul 23, 15:24 UTCJul 23, 16:07 UTC43m
2026-07-23 SKW6343 DAY → ORD Jul 23, 13:50 UTCJul 23, 14:20 UTC30m
2026-07-23 SKW4930 MLI → ORD Jul 23, 10:15 UTCJul 23, 11:00 UTC45m
2026-07-23 SKW4885 SFO → LAX Jul 23, 04:10 UTCJul 23, 04:35 UTC25m
2026-07-22 SKW6384 MEM → ORD Jul 22, 20:35 UTCJul 22, 22:10 UTC1h 35m
2026-07-22 SKW6384 MEM → ORD Jul 22, 20:33 UTCJul 22, 22:05 UTC1h 32m
2026-07-22 SKW6384 MEM → ORD Jul 22, 17:50 UTCJul 22, 19:20 UTC1h 30m
2026-07-22 SKW6345 DFW → HRL Jul 22, 14:10 UTCJul 22, 15:45 UTC1h 35m
2026-07-22 SKW6345 DFW → HRL Jul 22, 13:49 UTCJul 22, 15:42 UTC1h 53m
2026-07-22 SKW6186 ORD → IAH Jul 22, 01:15 UTCJul 22, 03:25 UTC2h 10m
2026-07-22 SKW6186 ORD → IAH Jul 22, 01:13 UTCJul 22, 03:38 UTC2h 25m
2026-07-21 SKW4990 SBP → PHX Jul 21, 22:05 UTCJul 21, 23:10 UTC1h 5m
2026-07-21 SKW4990 SBP → PHX Jul 21, 22:05 UTCJul 21, 23:05 UTC1h 0m
2026-07-21 SKW4990 SBP → PHX Jul 21, 20:00 UTCJul 21, 21:10 UTC1h 10m
2026-07-21 SKW6204 ORD → STL Jul 21, 16:20 UTCJul 21, 18:05 UTC1h 45m
2026-07-21 SKW6204 ORD → STL Jul 21, 13:45 UTCJul 21, 15:25 UTC1h 40m
2026-07-21 SKW6465 DTW → ORD Jul 21, 10:55 UTCJul 21, 12:15 UTC1h 20m
2026-07-21 SKW4931 - Jul 21, 00:15 UTCJul 21, 01:05 UTC50m
2026-07-20 SKW6411 SFO → LAX Jul 20, 19:50 UTCJul 20, 21:55 UTC2h 5m
2026-07-20 SKW6219 LAX → DEN Jul 20, 15:30 UTCJul 20, 17:30 UTC2h 0m
2026-07-20 SKW6403 DFW → DFW Jul 20, 03:15 UTCJul 20, 13:35 UTC10h 20m
2026-07-20 SKW6385 DRO → DFW Jul 20, 01:10 UTCJul 20, 02:00 UTC50m
2026-07-19 SKW6385 DRO → DFW Jul 19, 23:30 UTCJul 20, 00:15 UTC45m
2026-07-19 SKW5002 - Jul 19, 21:20 UTCJul 19, 22:05 UTC45m

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 N744EV page for operator, model, and routing details .

Mode-S AA01DE frequently asked

What is Mode-S code AA01DE?
AA01DE is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N744EV.
Where is Mode-S AA01DE registered?
Mode-S code AA01DE 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 AA01DE broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA01DE, octal 52400736, decimal 11,141,598.
What flights does AA01DE operate?
Mode-S AA01DE has broadcast 20 distinct callsigns, including SKW6255, SKW6335, SKW6191, SKW6465, SKW6250.