Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A0205C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N107SY · EMBRAER ERJ-170-200 (long wing) · operated by SKYWEST AIRLINES INC

Hex
A0205C
Octal
50020134
Decimal
10,494,044
Country
US
Tail
N107SY
Type
E75L
Broadcasting now · callsign SKW5487 · 30,000 ft
Flights observed
579
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:20 UTC

Current position

A0205C is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A0205C 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
SKW5672 SkyWest Airlines 8 2026-07-21
SKW5593 SkyWest Airlines 6 2026-07-20
SKW5451 SkyWest Airlines 6 2026-07-21
SKW4801 - 6 2026-07-09
SKW5972 - 5 2026-06-26
SKW5954 SkyWest Airlines 5 2026-07-26
SKW5918 SkyWest Airlines 5 2026-05-10
SKW5756 - 5 2026-07-24
SKW5365 SkyWest Airlines 5 2026-05-13
SKW5296 SkyWest Airlines 5 2026-05-13
SKW5288 - 5 2026-07-09
SKW5284 - 5 2026-07-13
SKW5214 - 5 2026-06-25
SKW5946 - 4 2026-04-16
SKW5932 SkyWest Airlines 4 2026-05-14
SKW5765 - 4 2026-07-20
SKW5717 - 4 2026-07-01
SKW5709 SkyWest Airlines 4 2026-04-27
SKW5629 SkyWest Airlines 4 2026-04-27
SKW5497 - 4 2026-06-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW5954 DEN → TUS Jul 26, 21:35 UTCJul 26, 22:20 UTC45m
2026-07-26 SKW6019 YYZ → ORD Jul 26, 19:10 UTCJul 26, 20:25 UTC1h 15m
2026-07-26 SKW482Y ORD → YYZ Jul 26, 16:30 UTCJul 26, 17:40 UTC1h 10m
2026-07-25 SKW5751 SFO → SMF Jul 25, 22:55 UTCJul 26, 00:30 UTC1h 35m
2026-07-25 SKW5757 SAT → IAH Jul 25, 20:30 UTCJul 25, 21:50 UTC1h 20m
2026-07-25 SKW5874 YUL → ORD Jul 25, 15:35 UTCJul 25, 18:10 UTC2h 35m
2026-07-25 SKW4654 TYS → ORD Jul 25, 12:35 UTCJul 25, 14:25 UTC1h 50m
2026-07-25 SKW4654 TYS → ORD Jul 25, 12:39 UTCJul 25, 14:17 UTC1h 38m
2026-07-24 SKW5483 MSP → SFO Jul 24, 23:35 UTCJul 25, 00:20 UTC45m
2026-07-24 SKW5954 DEN → TUS Jul 24, 21:30 UTCJul 24, 22:20 UTC50m
2026-07-24 SKW5381 - Jul 24, 18:40 UTCJul 24, 19:40 UTC1h 0m
2026-07-24 SKW5756 ORD → DTW Jul 24, 16:50 UTCJul 24, 17:40 UTC50m
2026-07-24 SKW4664 SFO → ABQ Jul 24, 13:10 UTCJul 24, 15:25 UTC2h 15m
2026-07-23 SKW4791 SFO → RDD Jul 23, 20:40 UTCJul 23, 22:25 UTC1h 45m
2026-07-23 SKW4653 DEN → DAY Jul 23, 16:25 UTCJul 23, 17:40 UTC1h 15m
2026-07-23 SKW4653 DEN → DAY Jul 23, 16:32 UTCJul 23, 17:28 UTC56m
2026-07-23 SKW5304 ORD → CHO Jul 23, 14:10 UTCJul 23, 15:15 UTC1h 5m
2026-07-23 SKW4728 COU → ORD Jul 23, 10:25 UTCJul 23, 12:05 UTC1h 40m
2026-07-23 SKW4728 COU → ORD Jul 23, 10:24 UTCJul 23, 11:51 UTC1h 27m
2026-07-23 SKW5275 SUN → SFO Jul 23, 00:10 UTCJul 23, 01:20 UTC1h 10m
2026-07-22 SKW5654 SUN → ORD Jul 22, 19:15 UTCJul 22, 21:25 UTC2h 10m
2026-07-22 SKW5473 SNA → SFO Jul 22, 16:15 UTCJul 22, 17:55 UTC1h 40m
2026-07-22 SKW4673 - Jul 22, 12:40 UTCJul 22, 14:45 UTC2h 5m
2026-07-21 SKW5451 SFO → BFL Jul 21, 22:15 UTCJul 21, 23:45 UTC1h 30m
2026-07-21 SKW5451 SFO → BFL Jul 21, 22:05 UTCJul 21, 23:40 UTC1h 35m
2026-07-21 SKW5672 SFO → ONT Jul 21, 15:00 UTCJul 21, 16:45 UTC1h 45m
2026-07-21 SKW5360 LGA → IAH Jul 21, 12:40 UTCJul 21, 13:50 UTC1h 10m
2026-07-21 SKW5453 OKC → IAH Jul 21, 10:10 UTCJul 21, 11:20 UTC1h 10m
2026-07-21 SKW4727 DEN → MKE Jul 21, 03:15 UTCJul 21, 04:28 UTC1h 13m
2026-07-21 SKW4727 DEN → MKE Jul 21, 03:20 UTCJul 21, 04:35 UTC1h 15m
2026-07-20 SKW5260 SFO → SNA Jul 20, 21:45 UTCJul 20, 23:30 UTC1h 45m
2026-07-20 SKW5765 - Jul 20, 19:50 UTCJul 20, 20:30 UTC40m
2026-07-20 SKW5525 - Jul 20, 17:15 UTCJul 20, 18:20 UTC1h 5m
2026-07-20 SKW5525 MEM → IAH Jul 20, 17:01 UTCJul 20, 18:16 UTC1h 15m
2026-07-20 SKW5593 DEN → SBP Jul 20, 14:55 UTCJul 20, 16:05 UTC1h 10m
2026-07-20 SKW5593 DEN → SBP Jul 20, 14:59 UTCJul 20, 16:06 UTC1h 7m
2026-07-20 SKW4707 - Jul 20, 10:25 UTCJul 20, 11:00 UTC35m
2026-07-20 SKW4707 MSN → ORD Jul 20, 10:19 UTCJul 20, 10:47 UTC28m
2026-07-19 SKW4740 GTF → DEN Jul 19, 23:30 UTCJul 20, 00:00 UTC30m
2026-07-19 SKW4740 GTF → DEN Jul 19, 23:30 UTCJul 19, 23:55 UTC25m
2026-07-19 SKW5937 SFO → SNA Jul 19, 20:05 UTCJul 19, 22:15 UTC2h 10m
2026-07-19 SKW5905 - Jul 19, 16:25 UTCJul 19, 18:45 UTC2h 20m
2026-07-19 SKW5553 SFO → SNA Jul 19, 11:25 UTCJul 19, 12:25 UTC1h 0m
2026-07-18 SKW5954 - Jul 18, 22:30 UTCJul 18, 23:15 UTC45m
2026-07-18 SKW5352 - Jul 18, 20:10 UTCJul 18, 20:45 UTC35m
2026-07-18 SKW5352 SBN → ORD Jul 18, 20:22 UTCJul 18, 20:39 UTC17m
2026-07-18 SKW5285 - Jul 18, 18:05 UTCJul 18, 18:30 UTC25m
2026-07-18 SKW5823 OKC → ORD Jul 18, 14:10 UTCJul 18, 16:00 UTC1h 50m
2026-07-18 SKW5392 ORD → OKC Jul 18, 04:20 UTCJul 18, 06:00 UTC1h 40m
2026-07-17 SKW5702 ASE → ORD Jul 17, 23:35 UTCJul 18, 02:50 UTC3h 16m

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 N107SY page for operator, model, and routing details .

Mode-S A0205C frequently asked

What is Mode-S code A0205C?
A0205C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N107SY.
Where is Mode-S A0205C registered?
Mode-S code A0205C 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 A0205C broadcasting right now?
Yes. Mode-S A0205C is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A0205C, octal 50020134, decimal 10,494,044.
What flights does A0205C operate?
Mode-S A0205C has broadcast 20 distinct callsigns, including SKW5672, SKW5593, SKW5451, SKW4801, SKW5972.