Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A183D3

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N197SY · EMBRAER ERJ-170-200 (long wing) · operated by SKYWEST AIRLINES INC

Hex
A183D3
Octal
50301723
Decimal
10,585,043
Country
US
Tail
N197SY
Type
E75L
Broadcasting now · callsign SKW3302 · 6,250 ft
Flights observed
612
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Current position

A183D3 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A183D3 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
SKW3074 - 9 2026-07-05
SKW3448 - 8 2026-06-22
SKW3346 - 8 2026-07-14
SKW3224 - 8 2026-06-30
SKW3404 SkyWest Airlines 7 2026-05-14
SKW3078 SkyWest Airlines 7 2026-06-23
SKW3073 - 7 2026-07-05
SKW3347 SkyWest Airlines 6 2026-06-19
SKW3285 SkyWest Airlines 6 2026-07-04
SKW3033 SkyWest Airlines 6 2026-05-20
SKW3019 SkyWest Airlines 6 2026-05-29
SKW3012 - 6 2026-07-07
SKW3499 - 5 2026-06-26
SKW3445 SkyWest Airlines 5 2026-05-06
SKW3415 SkyWest Airlines 5 2026-06-08
SKW3408 SkyWest Airlines 5 2026-06-29
SKW3301 SkyWest Airlines 5 2026-06-10
SKW3260 - 5 2026-06-30
SKW3225 SkyWest Airlines 5 2026-06-09
SKW3204 SkyWest Airlines 5 2026-06-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 SKW3060 PHX → SAN Jul 15, 03:10 UTCJul 15, 04:05 UTC55m
2026-07-15 SKW3061 - Jul 15, 00:45 UTCJul 15, 01:40 UTC55m
2026-07-14 SKW3221 - Jul 14, 22:40 UTCJul 14, 23:40 UTC59m
2026-07-14 SKW3346 - Jul 14, 20:05 UTCJul 14, 20:55 UTC50m
2026-07-14 SKW3313 OAK → SAN Jul 14, 17:51 UTCJul 14, 19:10 UTC1h 19m
2026-07-14 SKW3313 OAK → SAN Jul 14, 17:55 UTCJul 14, 19:15 UTC1h 20m
2026-07-14 SKW3320 SJC → PDX Jul 14, 15:35 UTCJul 14, 16:40 UTC1h 5m
2026-07-14 SKW3384 SJC → PDX Jul 14, 13:15 UTCJul 14, 14:20 UTC1h 5m
2026-07-14 SKW3384 SJC → PDX Jul 14, 13:18 UTCJul 14, 14:08 UTC50m
2026-07-13 SKW3346 - Jul 13, 20:20 UTCJul 13, 21:10 UTC50m
2026-07-13 SKW3313 OAK → SAN Jul 13, 18:05 UTCJul 13, 19:25 UTC1h 20m
2026-07-13 SKW3320 SJC → PDX Jul 13, 15:40 UTCJul 13, 16:45 UTC1h 5m
2026-07-13 SKW3384 SJC → PDX Jul 13, 13:10 UTCJul 13, 14:15 UTC1h 5m
2026-07-13 SKW3005 - Jul 13, 05:45 UTCJul 13, 06:35 UTC50m
2026-07-12 SKW3123 SLC → SAN Jul 12, 23:55 UTCJul 13, 01:30 UTC1h 35m
2026-07-12 SKW3112 PDX → SLC Jul 12, 18:25 UTCJul 12, 20:01 UTC1h 35m
2026-07-12 SKW3132 SEA → PDX Jul 12, 16:15 UTCJul 12, 16:50 UTC35m
2026-07-10 SKW3284 LAX → PDX Jul 10, 15:00 UTCJul 10, 17:25 UTC2h 25m
2026-07-10 SKW3214 - Jul 10, 03:05 UTCJul 10, 05:20 UTC2h 15m
2026-07-10 SKW3124 - Jul 10, 01:00 UTCJul 10, 01:50 UTC50m
2026-07-09 SKW3126 LAX → SFO Jul 9, 23:00 UTCJul 9, 23:40 UTC40m
2026-07-09 SKW3489 MRY → SAN Jul 9, 17:40 UTCJul 9, 21:35 UTC3h 55m
2026-07-09 SKW3370 PDX → SEA Jul 9, 14:30 UTCJul 9, 16:40 UTC2h 10m
2026-07-09 SKW3214 - Jul 9, 03:15 UTCJul 9, 05:20 UTC2h 5m
2026-07-09 SKW3124 - Jul 9, 01:05 UTCJul 9, 01:55 UTC50m
2026-07-08 SKW3126 LAX → SFO Jul 8, 23:18 UTCJul 8, 23:41 UTC23m
2026-07-08 SKW3126 LAX → SFO Jul 8, 23:05 UTCJul 8, 23:50 UTC45m
2026-07-08 SKW3489 MRY → SAN Jul 8, 20:07 UTCJul 8, 21:23 UTC1h 16m
2026-07-08 SKW3489 MRY → SAN Jul 8, 17:40 UTCJul 8, 21:25 UTC3h 45m
2026-07-08 SKW3004 - Jul 8, 14:35 UTCJul 8, 16:05 UTC1h 30m
2026-07-08 SKW3291 - Jul 8, 01:40 UTCJul 8, 03:30 UTC1h 50m
2026-07-07 SKW3041 EUG → PDX Jul 7, 23:20 UTCJul 7, 23:45 UTC25m
2026-07-07 SKW3042 - Jul 7, 21:55 UTCJul 7, 22:25 UTC30m
2026-07-07 SKW3117 SLC → PDX Jul 7, 19:05 UTCJul 7, 20:35 UTC1h 30m
2026-07-07 SKW3122 - Jul 7, 16:30 UTCJul 7, 18:00 UTC1h 30m
2026-07-07 SKW3020 - Jul 7, 03:25 UTCJul 7, 05:25 UTC2h 0m
2026-07-07 SKW3012 - Jul 7, 00:15 UTCJul 7, 02:10 UTC1h 55m
2026-07-06 SKW3482 - Jul 6, 21:50 UTCJul 6, 23:15 UTC1h 25m
2026-07-06 SKW3486 BOI → SFO Jul 6, 19:20 UTCJul 6, 20:30 UTC1h 10m
2026-07-06 SKW3287 - Jul 6, 15:45 UTCJul 6, 16:55 UTC1h 10m
2026-07-06 SKW3287 STS → SNA Jul 6, 15:48 UTCJul 6, 16:47 UTC59m
2026-07-06 SKW3432 - Jul 6, 02:40 UTCJul 6, 03:50 UTC1h 10m
2026-07-06 SKW3231 SNA → SFO Jul 6, 00:10 UTCJul 6, 01:25 UTC1h 15m
2026-07-06 SKW3231 SNA → SFO Jul 6, 00:15 UTCJul 6, 01:25 UTC1h 10m
2026-07-05 SKW3483 - Jul 5, 21:50 UTCJul 5, 23:05 UTC1h 15m
2026-07-05 SKW3074 - Jul 5, 19:55 UTCJul 5, 20:25 UTC30m
2026-07-05 SKW3074 RDM → PDX Jul 5, 20:00 UTCJul 5, 20:21 UTC21m
2026-07-05 SKW3073 PDX → RDM Jul 5, 18:25 UTCJul 5, 18:55 UTC30m
2026-07-05 SKW3487 SAN → SMF Jul 5, 14:35 UTCJul 5, 16:00 UTC1h 25m
2026-07-04 SKW3285 LAX → SEA Jul 4, 22:20 UTCJul 4, 23:55 UTC1h 35m

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 N197SY page for operator, model, and routing details .

Mode-S A183D3 frequently asked

What is Mode-S code A183D3?
A183D3 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N197SY.
Where is Mode-S A183D3 registered?
Mode-S code A183D3 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 A183D3 broadcasting right now?
Yes. Mode-S A183D3 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A183D3, octal 50301723, decimal 10,585,043.
What flights does A183D3 operate?
Mode-S A183D3 has broadcast 20 distinct callsigns, including SKW3074, SKW3448, SKW3346, SKW3224, SKW3404.