Apparatus

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sensors Mode-S transponder

A0FAC3

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N162SY · EMBRAER ERJ-170-200 (long wing) · operated by SKYWEST AIRLINES INC

Hex
A0FAC3
Octal
50175303
Decimal
10,549,955
Country
US
Tail
N162SY
Type
E75L
No current signal · last broadcast Jul 26, 22:45 UTC
Flights observed
677
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:45 UTC

Last known position

Most recent position reported by Mode-S A0FAC3.

Country allocation

The ICAO 24-bit address A0FAC3 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
SKW5811 - 8 2026-07-02
SKW5304 - 8 2026-07-11
SKW5478 SkyWest Airlines 7 2026-07-21
SKW5789 SkyWest Airlines 6 2026-07-23
SKW5658 - 6 2026-07-17
SKW5623 - 6 2026-07-08
SKW5247 - 6 2026-07-05
SKW5892 - 5 2026-07-11
SKW5805 SkyWest Airlines 5 2026-04-22
SKW5788 SkyWest Airlines 5 2026-07-23
SKW5497 - 5 2026-06-25
SKW5414 SkyWest Airlines 5 2026-07-22
SKW5379 - 5 2026-07-16
SKW5250 SkyWest Airlines 5 2026-06-13
SKW5222 - 5 2026-07-26
SKW5216 - 5 2026-07-12
SKW4751 SkyWest Airlines 5 2026-07-23
SKW5969 - 4 2026-07-14
SKW5937 SkyWest Airlines 4 2026-06-12
SKW5919 SkyWest Airlines 4 2026-06-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW5429 ONT → SFO Jul 26, 22:00 UTCJul 26, 22:45 UTC45m
2026-07-26 SKW5340 ORD → LGA Jul 26, 19:35 UTCJul 26, 20:25 UTC50m
2026-07-26 SKW5340 ORD → LGA Jul 26, 19:39 UTCJul 26, 20:35 UTC56m
2026-07-26 SKW5223 - Jul 26, 16:10 UTCJul 26, 17:20 UTC1h 10m
2026-07-26 SKW5223 MTY → IAH Jul 26, 16:12 UTCJul 26, 17:18 UTC1h 6m
2026-07-26 SKW5222 - Jul 26, 13:25 UTCJul 26, 14:30 UTC1h 5m
2026-07-26 SKW5453 SFO → SAT Jul 26, 10:15 UTCJul 26, 11:20 UTC1h 5m
2026-07-26 SKW5281 TUS → SFO Jul 26, 02:55 UTCJul 26, 04:00 UTC1h 5m
2026-07-25 SKW5243 SFO → GEG Jul 25, 23:35 UTCJul 26, 00:50 UTC1h 15m
2026-07-25 SKW6001 SFO → MTY Jul 25, 18:15 UTCJul 25, 21:55 UTC3h 40m
2026-07-25 SKW5479 SFO → MRY Jul 25, 12:25 UTCJul 25, 15:55 UTC3h 30m
2026-07-25 SKW5479 SFO → MRY Jul 25, 12:16 UTCJul 25, 15:46 UTC3h 30m
2026-07-25 SKW6036 SFO → SAT Jul 25, 02:05 UTCJul 25, 05:20 UTC3h 15m
2026-07-24 SKW5351 SFO → SNA Jul 24, 23:45 UTCJul 25, 00:55 UTC1h 10m
2026-07-24 SKW5440 SLC → SFO Jul 24, 21:00 UTCJul 24, 22:10 UTC1h 10m
2026-07-24 SKW5660 SFO → FAT Jul 24, 18:55 UTCJul 24, 20:05 UTC1h 10m
2026-07-24 SKW5660 SFO → FAT Jul 24, 18:26 UTCJul 24, 19:57 UTC1h 31m
2026-07-24 SKW5904 SFO → FAT Jul 24, 15:20 UTCJul 24, 16:20 UTC1h 0m
2026-07-24 SKW5904 SFO → FAT Jul 24, 15:24 UTCJul 24, 16:21 UTC57m
2026-07-24 SKW4763 IAH → SLC Jul 24, 12:15 UTCJul 24, 14:00 UTC1h 45m
2026-07-24 SKW449T DEN → SLC Jul 24, 00:10 UTCJul 24, 01:20 UTC1h 10m
2026-07-23 SKW5788 ORD → LGA Jul 23, 22:00 UTCJul 23, 22:25 UTC25m
2026-07-23 SKW5789 RDU → IAH Jul 23, 19:50 UTCJul 23, 20:10 UTC20m
2026-07-23 SKW5484 MSP → SFO Jul 23, 17:55 UTCJul 23, 18:30 UTC35m
2026-07-23 SKW4697 DCA → ORD Jul 23, 14:05 UTCJul 23, 14:45 UTC40m
2026-07-23 SKW4697 DCA → ORD Jul 23, 13:59 UTCJul 23, 15:47 UTC1h 48m
2026-07-23 SKW4751 DEN → DIK Jul 23, 11:15 UTCJul 23, 12:30 UTC1h 15m
2026-07-23 SKW5278 HPN → ORD Jul 23, 00:10 UTCJul 23, 01:10 UTC1h 0m
2026-07-22 SKW5278 HPN → ORD Jul 22, 23:54 UTCJul 23, 01:23 UTC1h 29m
2026-07-22 SKW5798 - Jul 22, 20:40 UTCJul 22, 21:55 UTC1h 15m
2026-07-22 SKW5414 FAR → DEN Jul 22, 18:25 UTCJul 22, 19:30 UTC1h 5m
2026-07-22 SKW5672 SFO → ONT Jul 22, 15:00 UTCJul 22, 16:25 UTC1h 25m
2026-07-22 SKW5360 LGA → IAH Jul 22, 12:40 UTCJul 22, 13:50 UTC1h 10m
2026-07-21 SKW5478 ORD → GSP Jul 21, 22:30 UTCJul 21, 23:30 UTC1h 0m
2026-07-21 SKW5760 DEN → LIT Jul 21, 19:40 UTCJul 21, 21:10 UTC1h 30m
2026-07-21 SKW5490 BHM → ORD Jul 21, 16:40 UTCJul 21, 17:55 UTC1h 15m
2026-07-21 SKW6029 DEN → OKC Jul 21, 14:25 UTCJul 21, 15:45 UTC1h 20m
2026-07-21 SKW5924 - Jul 21, 11:15 UTCJul 21, 12:50 UTC1h 35m
2026-07-21 SKW6027 - Jul 21, 05:10 UTCJul 21, 06:20 UTC1h 10m
2026-07-21 SKW5631 SBP → SFO Jul 21, 02:50 UTCJul 21, 04:05 UTC1h 15m
2026-07-21 SKW5631 SBP → SFO Jul 21, 02:31 UTCJul 21, 03:55 UTC1h 24m
2026-07-20 SKW5354 - Jul 20, 23:15 UTCJul 21, 00:15 UTC59m
2026-07-20 SKW5625 BFL → SFO Jul 20, 21:00 UTCJul 20, 21:45 UTC45m
2026-07-20 SKW4668 PHX → SFO Jul 20, 17:39 UTCJul 20, 19:26 UTC1h 47m
2026-07-20 SKW4668 PHX → SFO Jul 20, 17:35 UTCJul 20, 18:45 UTC1h 10m
2026-07-20 SKW5898 SGF → DEN Jul 20, 14:20 UTCJul 20, 15:50 UTC1h 30m
2026-07-20 SKW5886 DEN → SGF Jul 20, 00:05 UTCJul 20, 01:35 UTC1h 30m
2026-07-19 SKW5673 ORD → MEM Jul 19, 21:50 UTCJul 19, 22:20 UTC30m
2026-07-19 SKW5616 ATL → ORD Jul 19, 19:45 UTCJul 19, 20:15 UTC30m
2026-07-19 SKW5543 JAC → DEN Jul 19, 16:57 UTCJul 19, 18:25 UTC1h 28m

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 N162SY page for operator, model, and routing details .

Mode-S A0FAC3 frequently asked

What is Mode-S code A0FAC3?
A0FAC3 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N162SY.
Where is Mode-S A0FAC3 registered?
Mode-S code A0FAC3 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 A0FAC3 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A0FAC3, octal 50175303, decimal 10,549,955.
What flights does A0FAC3 operate?
Mode-S A0FAC3 has broadcast 20 distinct callsigns, including SKW5811, SKW5304, SKW5478, SKW5789, SKW5658.