Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AAE377

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N800SK · BOMBARDIER Regional Jet CRJ-900 · operated by SKYWEST AIRLINES INC

Hex
AAE377
Octal
52561567
Decimal
11,199,351
Country
US
Tail
N800SK
Type
CRJ9
No current signal · last broadcast Jul 26, 21:45 UTC
Flights observed
696
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:45 UTC

Last known position

Most recent position reported by Mode-S AAE377.

Country allocation

The ICAO 24-bit address AAE377 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
SKW3861 SkyWest Airlines 22 2026-07-24
SKW4130 - 18 2026-07-09
SKW3971 SkyWest Airlines 16 2026-07-24
SKW4144 - 14 2026-07-17
SKW4096 SkyWest Airlines 12 2026-04-27
SKW3870 SkyWest Airlines 12 2026-05-26
SKW4066 - 11 2026-07-19
SKW3538 SkyWest Airlines 11 2026-06-28
SKW3823 SkyWest Airlines 10 2026-04-28
SKW4158 SkyWest Airlines 9 2026-07-26
SKW4136 - 9 2026-07-13
SKW4024 SkyWest Airlines 9 2026-07-25
SKW3967 SkyWest Airlines 9 2026-07-26
SKW3864 SkyWest Airlines 9 2026-07-25
SKW3595 SkyWest Airlines 9 2026-07-25
SKW4466 SkyWest Airlines 8 2026-07-26
SKW4154 SkyWest Airlines 8 2026-07-26
SKW4080 - 8 2026-07-17
SKW4032 SkyWest Airlines 8 2026-05-18
SKW3990 - 8 2026-07-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW3967 SAN → LAS Jul 26, 21:15 UTCJul 26, 21:45 UTC30m
2026-07-26 SKW3967 SAN → LAS Jul 26, 18:15 UTCJul 26, 19:15 UTC1h 0m
2026-07-26 SKW4466 MSP → MKE Jul 26, 15:00 UTCJul 26, 15:55 UTC55m
2026-07-26 SKW4466 MSP → MKE Jul 26, 12:55 UTCJul 26, 13:40 UTC45m
2026-07-26 SKW4158 MOT → MSP Jul 26, 10:30 UTCJul 26, 11:15 UTC45m
2026-07-26 SKW4154 MSP → CMH Jul 26, 03:05 UTCJul 26, 04:05 UTC1h 0m
2026-07-25 SKW3595 ATL → CHA Jul 25, 21:15 UTCJul 25, 22:40 UTC1h 25m
2026-07-25 SKW3595 ATL → CHA Jul 25, 18:40 UTCJul 25, 19:50 UTC1h 10m
2026-07-25 SKW3864 BUR → SLC Jul 25, 11:30 UTCJul 25, 12:15 UTC45m
2026-07-25 SKW4024 IND → DTW Jul 25, 00:20 UTCJul 25, 01:10 UTC50m
2026-07-24 SKW3861 SLC → OMA Jul 24, 21:35 UTCJul 24, 22:25 UTC50m
2026-07-24 SKW3861 SLC → OMA Jul 24, 19:30 UTCJul 24, 20:15 UTC45m
2026-07-24 SKW3971 DTW → MKE Jul 24, 17:25 UTCJul 24, 18:20 UTC55m
2026-07-24 SKW3971 DTW → MKE Jul 24, 15:00 UTCJul 24, 16:05 UTC1h 5m
2026-07-24 SKW4073 DTW → HPN Jul 24, 12:00 UTCJul 24, 13:45 UTC1h 45m
2026-07-24 SKW125R SLC → YVR Jul 24, 01:35 UTCJul 24, 03:00 UTC1h 25m
2026-07-23 SKW3948 HPN → ATL Jul 23, 22:55 UTCJul 23, 23:45 UTC50m
2026-07-23 SKW188F MSP → OMA Jul 23, 20:55 UTCJul 23, 21:40 UTC45m
2026-07-23 SKW3534 ORD → BOS Jul 23, 18:55 UTCJul 23, 19:25 UTC30m
2026-07-23 SKW3534 ORD → BOS Jul 23, 17:20 UTCJul 23, 17:55 UTC35m
2026-07-23 SKW4103 OAK → SLC Jul 23, 14:00 UTCJul 23, 14:45 UTC45m
2026-07-23 SKW4103 OAK → SLC Jul 23, 12:20 UTCJul 23, 13:00 UTC40m
2026-07-23 SKW3840 SEA → SJC Jul 23, 10:10 UTCJul 23, 10:45 UTC35m
2026-07-22 SKW3578 LWS → SLC Jul 22, 23:50 UTCJul 23, 00:30 UTC40m
2026-07-22 SKW3578 LWS → SLC Jul 22, 23:56 UTCJul 23, 00:21 UTC25m
2026-07-22 SKW3861 SLC → OMA Jul 22, 21:20 UTCJul 22, 22:00 UTC40m
2026-07-22 SKW3861 SLC → OMA Jul 22, 19:30 UTCJul 22, 20:10 UTC40m
2026-07-22 SKW4102 MKE → LGA Jul 22, 17:10 UTCJul 22, 17:55 UTC45m
2026-07-22 SKW4102 MKE → LGA Jul 22, 15:25 UTCJul 22, 16:05 UTC40m
2026-07-22 SKW3864 BUR → SLC Jul 22, 11:35 UTCJul 22, 12:20 UTC45m
2026-07-22 SKW4024 IND → DTW Jul 22, 00:35 UTCJul 22, 01:20 UTC45m
2026-07-21 SKW4167 STL → MSP Jul 21, 21:05 UTCJul 21, 22:20 UTC1h 15m
2026-07-21 SKW4167 STL → MSP Jul 21, 21:09 UTCJul 21, 22:16 UTC1h 7m
2026-07-21 SKW4167 MSP → STL Jul 21, 19:05 UTCJul 21, 20:05 UTC1h 0m
2026-07-21 SKW3666 - Jul 21, 17:00 UTCJul 21, 17:30 UTC30m
2026-07-21 SKW3666 - Jul 21, 15:10 UTCJul 21, 15:30 UTC20m
2026-07-21 SKW3542 - Jul 21, 12:40 UTCJul 21, 14:00 UTC1h 20m
2026-07-21 SKW3542 ICT → MSP Jul 21, 12:42 UTCJul 21, 13:51 UTC1h 9m
2026-07-21 SKW3541 MSP → ICT Jul 21, 01:50 UTCJul 21, 03:10 UTC1h 20m
2026-07-20 SKW3948 HPN → ATL Jul 20, 23:25 UTCJul 21, 00:15 UTC49m
2026-07-20 SKW188F MSP → OMA Jul 20, 21:10 UTCJul 20, 22:00 UTC50m
2026-07-20 SKW4089 SFO → SEA Jul 20, 17:30 UTCJul 20, 19:10 UTC1h 40m
2026-07-20 SKW4089 SFO → SEA Jul 20, 14:40 UTCJul 20, 16:25 UTC1h 45m
2026-07-20 SKW4460 - Jul 20, 11:45 UTCJul 20, 12:55 UTC1h 10m
2026-07-20 SKW4464 MSP → MKE Jul 20, 00:25 UTCJul 20, 01:05 UTC40m
2026-07-19 SKW3967 - Jul 19, 21:05 UTCJul 19, 22:00 UTC55m
2026-07-19 SKW3967 RAP → MSP Jul 19, 20:56 UTCJul 19, 21:50 UTC54m
2026-07-19 SKW3967 - Jul 19, 18:35 UTCJul 19, 19:40 UTC1h 5m
2026-07-19 SKW4066 - Jul 19, 16:35 UTCJul 19, 17:25 UTC50m
2026-07-19 SKW4066 - Jul 19, 14:20 UTCJul 19, 15:10 UTC50m

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 N800SK page for operator, model, and routing details .

Mode-S AAE377 frequently asked

What is Mode-S code AAE377?
AAE377 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N800SK.
Where is Mode-S AAE377 registered?
Mode-S code AAE377 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 AAE377 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AAE377, octal 52561567, decimal 11,199,351.
What flights does AAE377 operate?
Mode-S AAE377 has broadcast 20 distinct callsigns, including SKW3861, SKW4130, SKW3971, SKW4144, SKW4096.