Apparatus

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sensors Mode-S transponder

A174F7

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N193SY · EMBRAER ERJ-170-200 (long wing) · operated by SKYWEST AIRLINES INC

Hex
A174F7
Octal
50272367
Decimal
10,581,239
Country
US
Tail
N193SY
Type
E75L
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 A174F7.

Country allocation

The ICAO 24-bit address A174F7 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
SKW3294 SkyWest Airlines 10 2026-07-24
SKW3285 SkyWest Airlines 9 2026-06-25
SKW3465 SkyWest Airlines 8 2026-06-01
SKW3012 - 8 2026-07-01
SKW3470 SkyWest Airlines 7 2026-06-09
SKW3337 - 7 2026-07-09
SKW3122 - 7 2026-06-27
SKW3448 SkyWest Airlines 6 2026-07-26
SKW3433 - 6 2026-07-21
SKW3432 - 6 2026-06-29
SKW3284 SkyWest Airlines 6 2026-07-20
SKW3081 - 6 2026-07-08
SKW3069 SkyWest Airlines 6 2026-05-30
SKW3021 SkyWest Airlines 6 2026-06-03
SKW3019 - 6 2026-07-04
SKW3006 SkyWest Airlines 6 2026-07-04
SKW3497 SkyWest Airlines 5 2026-07-25
SKW3492 - 5 2026-07-09
SKW3467 SkyWest Airlines 5 2026-07-25
SKW3372 - 5 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW3363 SFO → LAX Jul 26, 21:10 UTCJul 26, 21:45 UTC35m
2026-07-26 SKW3362 SEA → SFO Jul 26, 16:05 UTCJul 26, 17:00 UTC55m
2026-07-26 SKW3448 SFO → SLC Jul 26, 13:10 UTCJul 26, 13:35 UTC25m
2026-07-26 SKW3448 SFO → SLC Jul 26, 13:20 UTCJul 26, 13:31 UTC11m
2026-07-26 SKW3430 LAX → SFO Jul 26, 06:30 UTCJul 26, 07:00 UTC31m
2026-07-26 SKW3048 PDX → SEA Jul 26, 02:30 UTCJul 26, 03:20 UTC50m
2026-07-25 SKW3107 SJC → SAN Jul 25, 23:40 UTCJul 26, 01:15 UTC1h 35m
2026-07-25 SKW3092 SAN → SJC Jul 25, 21:30 UTCJul 25, 22:30 UTC1h 0m
2026-07-25 SKW3467 FCA → LAX Jul 25, 19:05 UTCJul 25, 20:20 UTC1h 15m
2026-07-25 SKW3467 FCA → LAX Jul 25, 19:12 UTCJul 25, 20:19 UTC1h 7m
2026-07-25 SKW3450 SNA → SFO Jul 25, 17:00 UTCJul 25, 18:10 UTC1h 10m
2026-07-25 SKW3450 SNA → SFO Jul 25, 17:13 UTCJul 25, 18:09 UTC56m
2026-07-25 SKW3497 LAX → PDX Jul 25, 15:05 UTCJul 25, 16:10 UTC1h 5m
2026-07-25 SKW3214 SJC → LAX Jul 25, 03:40 UTCJul 25, 06:00 UTC2h 20m
2026-07-25 SKW3306 OAK → PDX Jul 25, 01:40 UTCJul 25, 02:30 UTC50m
2026-07-24 SKW3305 LAX → SFO Jul 24, 23:55 UTCJul 25, 00:40 UTC45m
2026-07-24 SKW3294 GEG → SEA Jul 24, 22:15 UTCJul 24, 22:40 UTC25m
2026-07-24 SKW3294 GEG → SEA Jul 24, 20:45 UTCJul 24, 21:10 UTC25m
2026-07-24 SKW3100 SBA → PHX Jul 24, 18:30 UTCJul 24, 19:35 UTC1h 5m
2026-07-24 SKW3101 FWA → DFW Jul 24, 16:30 UTCJul 24, 17:15 UTC45m
2026-07-24 SKW3026 SEA → IDA Jul 24, 13:15 UTCJul 24, 14:05 UTC50m
2026-07-24 SKW3027 SEA → FAT Jul 24, 03:25 UTCJul 24, 04:10 UTC45m
2026-07-24 SKW3082 ACT → DFW Jul 24, 00:55 UTCJul 24, 02:25 UTC1h 30m
2026-07-23 SKW3083 PDX → STS Jul 23, 22:40 UTCJul 23, 23:45 UTC1h 5m
2026-07-23 SKW3083 PDX → STS Jul 23, 22:54 UTCJul 23, 23:50 UTC56m
2026-07-23 SKW3363 SFO → LAX Jul 23, 20:15 UTCJul 23, 21:45 UTC1h 30m
2026-07-23 SKW3362 SEA → SFO Jul 23, 17:45 UTCJul 23, 18:40 UTC55m
2026-07-23 SKW3385 - Jul 23, 13:25 UTCJul 23, 13:50 UTC25m
2026-07-23 SKW3102 LAX → SFO Jul 23, 05:15 UTCJul 23, 05:45 UTC30m
2026-07-23 SKW3048 PDX → SEA Jul 23, 02:30 UTCJul 23, 03:15 UTC45m
2026-07-22 SKW3107 SJC → SAN Jul 22, 23:30 UTCJul 23, 01:10 UTC1h 40m
2026-07-22 SKW3092 SAN → SJC Jul 22, 21:25 UTCJul 22, 22:25 UTC1h 0m
2026-07-22 SKW3467 FCA → LAX Jul 22, 19:00 UTCJul 22, 20:20 UTC1h 20m
2026-07-22 SKW3450 SNA → SFO Jul 22, 17:05 UTCJul 22, 18:15 UTC1h 10m
2026-07-22 SKW3497 LAX → PDX Jul 22, 15:05 UTCJul 22, 16:10 UTC1h 5m
2026-07-22 SKW3022 ORD → BNA Jul 22, 01:10 UTCJul 22, 03:25 UTC2h 15m
2026-07-21 SKW3041 STS → BUR Jul 21, 23:50 UTCJul 22, 00:15 UTC25m
2026-07-21 SKW3042 EUG → SEA Jul 21, 22:30 UTCJul 21, 23:00 UTC30m
2026-07-21 SKW3042 EUG → SEA Jul 21, 22:40 UTCJul 21, 22:54 UTC14m
2026-07-21 SKW3121 - Jul 21, 20:30 UTCJul 21, 21:40 UTC1h 10m
2026-07-21 SKW3110 LAX → SJC Jul 21, 16:45 UTCJul 21, 17:50 UTC1h 5m
2026-07-21 SKW3018 DFW → LAW Jul 21, 14:00 UTCJul 21, 15:30 UTC1h 30m
2026-07-21 SKW3298 LAX → SEA Jul 21, 02:35 UTCJul 21, 04:15 UTC1h 40m
2026-07-21 SKW3433 OTS → SEA Jul 21, 00:50 UTCJul 21, 01:15 UTC25m
2026-07-21 SKW3433 BLI → SEA Jul 21, 00:57 UTCJul 21, 01:14 UTC17m
2026-07-20 SKW3433 SEA → BLI Jul 20, 23:30 UTCJul 20, 23:55 UTC24m
2026-07-20 SKW3138 YLW → SEA Jul 20, 20:55 UTCJul 20, 21:45 UTC50m
2026-07-20 SKW3254 BFI → YLW Jul 20, 18:55 UTCJul 20, 19:35 UTC40m
2026-07-20 SKW3284 LAX → PDX Jul 20, 15:00 UTCJul 20, 17:10 UTC2h 10m
2026-07-20 SKW3214 SJC → LAX Jul 20, 03:30 UTCJul 20, 05:45 UTC2h 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 N193SY page for operator, model, and routing details .

Mode-S A174F7 frequently asked

What is Mode-S code A174F7?
A174F7 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N193SY.
Where is Mode-S A174F7 registered?
Mode-S code A174F7 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 A174F7 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 A174F7, octal 50272367, decimal 10,581,239.
What flights does A174F7 operate?
Mode-S A174F7 has broadcast 20 distinct callsigns, including SKW3294, SKW3285, SKW3465, SKW3012, SKW3470.