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sensors Mode-S transponder

AAEE9C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N803SK · BOMBARDIER Regional Jet CRJ-900 · operated by SKYWEST AIRLINES INC

Hex
AAEE9C
Octal
52567234
Decimal
11,202,204
Country
US
Tail
N803SK
Type
CRJ9
No current signal · last broadcast Jul 26, 17:45 UTC
Flights observed
733
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 17:45 UTC

Last known position

Most recent position reported by Mode-S AAEE9C.

Country allocation

The ICAO 24-bit address AAEE9C 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
SKW3831 - 17 2026-07-23
SKW3920 - 14 2026-07-10
SKW3538 SkyWest Airlines 13 2026-07-22
SKW4167 SkyWest Airlines 12 2026-07-25
SKW3783 - 12 2026-07-10
SKW129W - 12 2026-07-10
SKW3836 SkyWest Airlines 11 2026-06-09
SKW3595 - 11 2026-07-15
SKW4144 - 10 2026-07-14
SKW4103 SkyWest Airlines 10 2026-07-26
SKW3971 - 10 2026-07-02
SKW3702 SkyWest Airlines 10 2026-07-25
SKW3534 SkyWest Airlines 10 2026-07-26
SKW4066 - 9 2026-07-13
SKW4007 - 9 2026-06-26
SKW3912 - 9 2026-07-21
SKW3886 SkyWest Airlines 9 2026-07-23
SKW3868 SkyWest Airlines 9 2026-07-22
SKW4143 - 8 2026-07-15
SKW4102 SkyWest Airlines 8 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW3534 ORD → BOS Jul 26, 16:55 UTCJul 26, 17:40 UTC45m
2026-07-26 SKW4103 OAK → SLC Jul 26, 14:05 UTCJul 26, 14:50 UTC45m
2026-07-26 SKW4103 OAK → SLC Jul 26, 12:15 UTCJul 26, 12:50 UTC35m
2026-07-26 SKW3840 SEA → SJC Jul 26, 10:10 UTCJul 26, 10:45 UTC35m
2026-07-25 SKW3578 LWS → SLC Jul 25, 23:50 UTCJul 26, 00:25 UTC35m
2026-07-25 SKW4167 MSP → RST Jul 25, 21:10 UTCJul 25, 22:40 UTC1h 30m
2026-07-25 SKW4167 MSP → RST Jul 25, 19:05 UTCJul 25, 20:05 UTC1h 0m
2026-07-25 SKW3666 DTW → MDW Jul 25, 17:15 UTCJul 25, 17:50 UTC35m
2026-07-25 SKW3666 DTW → MDW Jul 25, 15:15 UTCJul 25, 15:35 UTC20m
2026-07-25 SKW3702 OMA → LGA Jul 25, 11:10 UTCJul 25, 12:25 UTC1h 15m
2026-07-25 SKW3780 CLT → DTW Jul 25, 01:05 UTCJul 25, 02:05 UTC1h 0m
2026-07-24 SKW4130 PDX → SEA Jul 24, 22:45 UTCJul 24, 23:40 UTC55m
2026-07-24 SKW4130 PDX → SEA Jul 24, 20:25 UTCJul 24, 21:25 UTC1h 0m
2026-07-24 SKW3534 ORD → BOS Jul 24, 18:45 UTCJul 24, 19:20 UTC35m
2026-07-24 SKW3534 ORD → BOS Jul 24, 17:05 UTCJul 24, 17:40 UTC35m
2026-07-24 SKW4103 OAK → SLC Jul 24, 14:00 UTCJul 24, 14:45 UTC45m
2026-07-24 SKW4103 OAK → SLC Jul 24, 12:25 UTCJul 24, 13:00 UTC35m
2026-07-24 SKW3840 SEA → SJC Jul 24, 10:15 UTCJul 24, 10:50 UTC35m
2026-07-23 SKW3578 LWS → SLC Jul 23, 23:50 UTCJul 24, 00:25 UTC35m
2026-07-23 SKW3865 SJC → SEA Jul 23, 20:20 UTCJul 23, 21:30 UTC1h 10m
2026-07-23 SKW3865 SJC → SEA Jul 23, 18:10 UTCJul 23, 19:10 UTC1h 0m
2026-07-23 SKW3831 - Jul 23, 16:05 UTCJul 23, 16:55 UTC50m
2026-07-23 SKW3831 - Jul 23, 14:10 UTCJul 23, 15:00 UTC50m
2026-07-23 SKW3835 FAR → MSP Jul 23, 11:25 UTCJul 23, 12:40 UTC1h 15m
2026-07-23 SKW3886 LGA → MKE Jul 23, 01:25 UTCJul 23, 02:15 UTC50m
2026-07-22 SKW3538 ATL → LEX Jul 22, 21:55 UTCJul 22, 22:35 UTC40m
2026-07-22 SKW3538 ATL → LEX Jul 22, 20:35 UTCJul 22, 21:10 UTC35m
2026-07-22 SKW149R YYZ → MSP Jul 22, 17:52 UTCJul 22, 19:19 UTC1h 27m
2026-07-22 SKW149R YYZ → MSP Jul 22, 17:45 UTCJul 22, 19:20 UTC1h 35m
2026-07-22 SKW3868 MSP → IAD Jul 22, 14:55 UTCJul 22, 16:20 UTC1h 25m
2026-07-22 SKW3922 - Jul 22, 13:15 UTCJul 22, 13:40 UTC25m
2026-07-22 SKW3922 DLH → MSP Jul 22, 13:15 UTCJul 22, 13:39 UTC24m
2026-07-21 SKW3912 - Jul 21, 23:50 UTCJul 22, 00:10 UTC20m
2026-07-21 SKW3861 SLC → OMA Jul 21, 21:55 UTCJul 21, 22:40 UTC45m
2026-07-21 SKW3861 SLC → OMA Jul 21, 22:03 UTCJul 21, 22:34 UTC31m
2026-07-21 SKW3861 SLC → OMA Jul 21, 19:25 UTCJul 21, 20:10 UTC45m
2026-07-21 SKW4102 MKE → LGA Jul 21, 17:10 UTCJul 21, 17:55 UTC45m
2026-07-21 SKW4102 MKE → LGA Jul 21, 17:15 UTCJul 21, 17:47 UTC32m
2026-07-21 SKW4102 MKE → LGA Jul 21, 15:30 UTCJul 21, 16:10 UTC40m
2026-07-21 SKW3922 - Jul 21, 13:10 UTCJul 21, 13:40 UTC30m
2026-07-20 SKW3912 - Jul 20, 23:35 UTCJul 20, 23:55 UTC20m
2026-07-20 SKW3865 - Jul 20, 20:20 UTCJul 20, 21:35 UTC1h 15m
2026-07-20 SKW3865 MSP → GRR Jul 20, 18:25 UTCJul 20, 19:25 UTC1h 0m
2026-07-20 SKW3990 - Jul 20, 15:50 UTCJul 20, 17:00 UTC1h 10m
2026-07-20 SKW3990 MSP → GRR Jul 20, 13:35 UTCJul 20, 14:35 UTC1h 0m
2026-07-20 SKW3864 - Jul 20, 11:10 UTCJul 20, 12:15 UTC1h 5m
2026-07-20 SKW4024 IND → DTW Jul 20, 00:00 UTCJul 20, 00:50 UTC50m
2026-07-19 SKW4167 STL → MSP Jul 19, 21:32 UTCJul 19, 22:38 UTC1h 6m
2026-07-19 SKW4167 STL → MSP Jul 19, 21:30 UTCJul 19, 22:45 UTC1h 15m
2026-07-19 SKW4167 MSP → STL Jul 19, 19:30 UTCJul 19, 20:30 UTC1h 0m

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 N803SK page for operator, model, and routing details .

Mode-S AAEE9C frequently asked

What is Mode-S code AAEE9C?
AAEE9C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N803SK.
Where is Mode-S AAEE9C registered?
Mode-S code AAEE9C 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 AAEE9C broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 17:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AAEE9C, octal 52567234, decimal 11,202,204.
What flights does AAEE9C operate?
Mode-S AAEE9C has broadcast 20 distinct callsigns, including SKW3831, SKW3920, SKW3538, SKW4167, SKW3783.