Apparatus

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sensors Mode-S transponder

A2FE8F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N292SY · EMBRAER ERJ-170-200 (long wing) · operated by SKYWEST AIRLINES INC

Hex
A2FE8F
Octal
50577217
Decimal
10,681,999
Country
US
Tail
N292SY
Type
E75L
No current signal · last broadcast Jul 26, 21:15 UTC
Flights observed
660
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:15 UTC

Last known position

Most recent position reported by Mode-S A2FE8F.

Country allocation

The ICAO 24-bit address A2FE8F 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
SKW3857 - 18 2026-07-03
SKW4179 SkyWest Airlines 15 2026-07-24
SKW4126 SkyWest Airlines 14 2026-07-25
SKW4108 SkyWest Airlines 14 2026-07-26
SKW4078 SkyWest Airlines 13 2026-07-24
SKW3735 - 13 2026-07-02
SKW4075 - 11 2026-07-17
SKW4153 - 10 2026-07-01
SKW3736 SkyWest Airlines 10 2026-06-30
SKW4125 SkyWest Airlines 9 2026-07-04
SKW4083 SkyWest Airlines 9 2026-07-25
SKW4062 - 9 2026-06-22
SKW4002 SkyWest Airlines 9 2026-07-24
SKW3869 SkyWest Airlines 9 2026-05-03
SKW3741 SkyWest Airlines 9 2026-07-24
SKW4001 SkyWest Airlines 8 2026-07-23
SKW3887 SkyWest Airlines 8 2026-07-19
SKW3843 SkyWest Airlines 8 2026-04-30
SKW3751 SkyWest Airlines 8 2026-07-23
SKW4097 SkyWest Airlines 7 2026-05-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW4108 LAX → ABQ Jul 26, 19:45 UTCJul 26, 21:15 UTC1h 30m
2026-07-26 SKW4084 SLC → ABQ Jul 26, 17:40 UTCJul 26, 18:50 UTC1h 10m
2026-07-26 SKW3708 SEA → SFO Jul 26, 13:15 UTCJul 26, 14:40 UTC1h 25m
2026-07-26 SKW137C MDT → DTW Jul 26, 03:00 UTCJul 26, 04:30 UTC1h 30m
2026-07-26 SKW4105 CLE → DTW Jul 26, 00:00 UTCJul 26, 01:30 UTC1h 30m
2026-07-25 SKW4105 CLE → DTW Jul 25, 21:10 UTCJul 25, 22:50 UTC1h 40m
2026-07-25 SKW4084 SLC → ABQ Jul 25, 18:50 UTCJul 25, 20:05 UTC1h 15m
2026-07-25 SKW4108 LAX → ABQ Jul 25, 15:35 UTCJul 25, 17:15 UTC1h 40m
2026-07-25 SKW3969 PIT → BOS Jul 25, 13:10 UTCJul 25, 14:20 UTC1h 10m
2026-07-25 SKW4083 MSP → MDW Jul 25, 04:45 UTCJul 25, 05:45 UTC1h 0m
2026-07-25 SKW4126 HPN → DTW Jul 25, 02:20 UTCJul 25, 03:25 UTC1h 5m
2026-07-24 SKW4126 HPN → DTW Jul 24, 23:55 UTCJul 25, 00:50 UTC55m
2026-07-24 SKW4002 LAX → SFO Jul 24, 22:30 UTCJul 24, 23:05 UTC35m
2026-07-24 SKW4002 LAX → SFO Jul 24, 22:24 UTCJul 24, 22:51 UTC27m
2026-07-24 SKW3741 SAN → LAS Jul 24, 20:35 UTCJul 24, 21:25 UTC50m
2026-07-24 SKW4078 SNA → LAS Jul 24, 18:05 UTCJul 24, 18:55 UTC50m
2026-07-24 SKW4078 SNA → LAS Jul 24, 16:10 UTCJul 24, 16:50 UTC40m
2026-07-24 SKW4179 SEA → EUG Jul 24, 03:55 UTCJul 24, 04:55 UTC1h 0m
2026-07-24 SKW4179 SEA → EUG Jul 24, 01:20 UTCJul 24, 02:05 UTC45m
2026-07-23 SKW3751 DTW → SBN Jul 23, 23:35 UTCJul 23, 23:45 UTC10m
2026-07-23 SKW3751 DTW → SBN Jul 23, 23:33 UTCJul 24, 00:22 UTC49m
2026-07-23 SKW4001 CMH → MSP Jul 23, 21:45 UTCJul 23, 22:20 UTC35m
2026-07-23 SKW109Y LAX → SJC Jul 23, 18:25 UTCJul 23, 20:00 UTC1h 35m
2026-07-23 SKW4084 SLC → ABQ Jul 23, 16:20 UTCJul 23, 17:30 UTC1h 10m
2026-07-23 SKW4061 SJC → LAX Jul 23, 13:10 UTCJul 23, 14:40 UTC1h 30m
2026-07-23 SKW3797 SLC → OAK Jul 23, 05:15 UTCJul 23, 06:40 UTC1h 25m
2026-07-23 SKW3726 EUG → SLC Jul 23, 02:15 UTCJul 23, 03:30 UTC1h 15m
2026-07-22 SKW3726 EUG → SLC Jul 22, 23:55 UTCJul 23, 01:15 UTC1h 20m
2026-07-22 SKW3892 ICT → MSP Jul 22, 21:05 UTCJul 22, 22:25 UTC1h 20m
2026-07-22 SKW3892 ICT → MSP Jul 22, 18:35 UTCJul 22, 19:40 UTC1h 5m
2026-07-22 SKW3719 LEX → DTW Jul 22, 16:10 UTCJul 22, 17:15 UTC1h 5m
2026-07-22 SKW3719 LEX → DTW Jul 22, 13:50 UTCJul 22, 14:55 UTC1h 5m
2026-07-22 SKW3839 SLC → HLN Jul 22, 04:15 UTCJul 22, 12:40 UTC8h 25m
2026-07-22 SKW4443 AUS → MSP Jul 22, 00:20 UTCJul 22, 01:40 UTC1h 20m
2026-07-21 SKW4443 AUS → MSP Jul 21, 21:50 UTCJul 21, 23:10 UTC1h 20m
2026-07-21 SKW4019 SLC → ABQ Jul 21, 19:40 UTCJul 21, 20:20 UTC40m
2026-07-21 SKW4019 SLC → ABQ Jul 21, 19:28 UTCJul 21, 20:07 UTC39m
2026-07-21 SKW172E SLC → SUN Jul 21, 17:35 UTCJul 21, 18:05 UTC30m
2026-07-21 SKW4138 FAT → SLC Jul 21, 13:20 UTCJul 21, 14:35 UTC1h 15m
2026-07-21 SKW4138 FAT → SLC Jul 21, 13:09 UTCJul 21, 14:23 UTC1h 14m
2026-07-21 SKW3774 SLC → FAT Jul 21, 02:45 UTCJul 21, 03:45 UTC1h 0m
2026-07-20 SKW4105 EUG → SLC Jul 20, 23:50 UTCJul 21, 01:25 UTC1h 35m
2026-07-20 SKW4105 SLC → EUG Jul 20, 21:15 UTCJul 20, 22:50 UTC1h 35m
2026-07-20 SKW3944 PDX → SEA Jul 20, 18:05 UTCJul 20, 18:35 UTC30m
2026-07-20 SKW3944 PDX → SEA Jul 20, 17:45 UTCJul 20, 18:28 UTC43m
2026-07-20 SKW3944 PDX → SEA Jul 20, 15:50 UTCJul 20, 16:15 UTC25m
2026-07-20 SKW4030 SYR → DTW Jul 20, 13:10 UTCJul 20, 14:25 UTC1h 15m
2026-07-20 SKW120W - Jul 20, 03:00 UTCJul 20, 04:05 UTC1h 5m
2026-07-20 SKW3852 - Jul 20, 00:35 UTCJul 20, 01:50 UTC1h 15m
2026-07-19 SKW3852 - Jul 19, 21:55 UTCJul 19, 23:10 UTC1h 15m

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 N292SY page for operator, model, and routing details .

Mode-S A2FE8F frequently asked

What is Mode-S code A2FE8F?
A2FE8F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N292SY.
Where is Mode-S A2FE8F registered?
Mode-S code A2FE8F 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 A2FE8F broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A2FE8F, octal 50577217, decimal 10,681,999.
What flights does A2FE8F operate?
Mode-S A2FE8F has broadcast 20 distinct callsigns, including SKW3857, SKW4179, SKW4126, SKW4108, SKW4078.