Apparatus

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sensors Mode-S transponder

A68485

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N519SY · EMBRAER ERJ-170-200 (long wing) · operated by SKYWEST AIRLINES INC

Hex
A68485
Octal
51502205
Decimal
10,912,901
Country
US
Tail
N519SY
Type
E75L
Broadcasting now · callsign SKW6188 · 28,225 ft
Flights observed
585
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Current position

A68485 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A68485 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
SKW6409 - 17 2026-07-05
SKW6307 SkyWest Airlines 14 2026-06-17
SKW5005 - 13 2026-07-14
SKW4957 - 13 2026-06-26
SKW4898 - 13 2026-07-08
SKW4895 - 13 2026-07-08
SKW6415 - 12 2026-06-22
SKW6366 SkyWest Airlines 12 2026-06-08
SKW6336 - 12 2026-07-14
SKW6330 - 12 2026-07-13
SKW4987 SkyWest Airlines 12 2026-05-12
SKW6221 - 10 2026-06-25
SKW6212 SkyWest Airlines 9 2026-05-09
SKW6190 - 9 2026-07-13
SKW6188 - 9 2026-07-11
SKW4920 SkyWest Airlines 9 2026-06-10
SKW4915 - 9 2026-07-02
SKW4913 SkyWest Airlines 9 2026-05-11
SKW6216 SkyWest Airlines 8 2026-06-22
SKW6353 SkyWest Airlines 7 2026-05-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SKW6336 - Jul 14, 16:45 UTCJul 14, 17:45 UTC1h 0m
2026-07-14 SKW6336 - Jul 14, 14:50 UTCJul 14, 15:55 UTC1h 5m
2026-07-14 SKW5005 - Jul 14, 02:40 UTCJul 14, 05:35 UTC2h 55m
2026-07-13 SKW5005 - Jul 13, 22:05 UTCJul 14, 01:25 UTC3h 20m
2026-07-13 SKW6330 SFO → LAX Jul 13, 18:55 UTCJul 13, 19:56 UTC1h 1m
2026-07-13 SKW6330 SFO → LAX Jul 13, 18:55 UTCJul 13, 20:00 UTC1h 5m
2026-07-13 SKW6330 - Jul 13, 16:40 UTCJul 13, 17:30 UTC50m
2026-07-13 SKW4919 - Jul 13, 13:10 UTCJul 13, 14:40 UTC1h 30m
2026-07-13 SKW4919 ABQ → LAX Jul 13, 13:14 UTCJul 13, 14:33 UTC1h 19m
2026-07-13 SKW296Y - Jul 13, 05:15 UTCJul 13, 06:50 UTC1h 35m
2026-07-13 SKW296Y LAX → ABQ Jul 13, 05:27 UTCJul 13, 06:42 UTC1h 15m
2026-07-13 SKW4946 LAS → LAX Jul 13, 03:36 UTCJul 13, 04:17 UTC41m
2026-07-13 SKW4946 - Jul 13, 03:40 UTCJul 13, 04:20 UTC40m
2026-07-13 SKW6190 - Jul 13, 01:30 UTCJul 13, 02:15 UTC45m
2026-07-12 SKW6381 - Jul 12, 20:55 UTCJul 13, 00:15 UTC3h 20m
2026-07-12 SKW6381 - Jul 12, 16:45 UTCJul 12, 19:45 UTC3h 0m
2026-07-12 SKW4919 - Jul 12, 13:15 UTCJul 12, 14:45 UTC1h 30m
2026-07-12 SKW296Y - Jul 12, 03:15 UTCJul 12, 04:55 UTC1h 40m
2026-07-12 SKW4946 - Jul 12, 01:20 UTCJul 12, 02:05 UTC45m
2026-07-11 SKW6190 LAX → LAS Jul 11, 23:25 UTCJul 12, 00:14 UTC49m
2026-07-11 SKW6188 - Jul 11, 21:05 UTCJul 11, 22:05 UTC1h 0m
2026-07-11 SKW6188 - Jul 11, 19:15 UTCJul 11, 20:10 UTC55m
2026-07-11 SKW6336 - Jul 11, 16:35 UTCJul 11, 17:40 UTC1h 5m
2026-07-11 SKW6336 SFO → LAX Jul 11, 16:32 UTCJul 11, 17:35 UTC1h 3m
2026-07-11 SKW6336 LAX → SFO Jul 11, 14:35 UTCJul 11, 15:25 UTC50m
2026-07-11 SKW5005 - Jul 11, 02:15 UTCJul 11, 05:05 UTC2h 50m
2026-07-10 SKW5005 - Jul 10, 22:00 UTCJul 11, 01:00 UTC3h 0m
2026-07-10 SKW4887 - Jul 10, 19:25 UTCJul 10, 21:10 UTC1h 45m
2026-07-10 SKW4887 - Jul 10, 15:45 UTCJul 10, 17:15 UTC1h 30m
2026-07-10 SKW6294 - Jul 10, 13:30 UTCJul 10, 14:30 UTC1h 0m
2026-07-10 SKW6294 SFO → LAX Jul 10, 13:27 UTCJul 10, 14:25 UTC58m
2026-07-10 SKW6260 - Jul 10, 05:55 UTCJul 10, 06:55 UTC1h 0m
2026-07-10 SKW6260 LAX → SFO Jul 10, 05:54 UTCJul 10, 07:02 UTC1h 8m
2026-07-10 SKW4958 - Jul 10, 02:50 UTCJul 10, 04:50 UTC2h 0m
2026-07-09 SKW4958 - Jul 9, 23:45 UTCJul 10, 01:40 UTC1h 55m
2026-07-09 SKW6330 SFO → LAX Jul 9, 19:25 UTCJul 9, 20:25 UTC1h 0m
2026-07-09 SKW6330 SFO → LAX Jul 9, 19:25 UTCJul 9, 20:21 UTC56m
2026-07-09 SKW6330 - Jul 9, 17:25 UTCJul 9, 18:25 UTC1h 0m
2026-07-09 SKW4951 - Jul 9, 12:20 UTCJul 9, 14:55 UTC2h 35m
2026-07-09 SKW4951 SAT → LAX Jul 9, 12:15 UTCJul 9, 14:52 UTC2h 37m
2026-07-09 SKW4962 - Jul 9, 03:45 UTCJul 9, 06:15 UTC2h 30m
2026-07-09 SKW4962 LAX → SAT Jul 9, 03:54 UTCJul 9, 06:15 UTC2h 21m
2026-07-09 SKW6270 - Jul 9, 00:45 UTCJul 9, 02:45 UTC2h 0m
2026-07-09 SKW6270 MSO → LAX Jul 9, 00:30 UTCJul 9, 02:46 UTC2h 16m
2026-07-08 SKW6270 - Jul 8, 21:15 UTCJul 8, 23:05 UTC1h 50m
2026-07-08 SKW6330 SFO → LAX Jul 8, 19:10 UTCJul 8, 20:15 UTC1h 5m
2026-07-08 SKW6330 SFO → LAX Jul 8, 19:10 UTCJul 8, 20:06 UTC56m
2026-07-08 SKW6330 - Jul 8, 17:05 UTCJul 8, 18:10 UTC1h 5m
2026-07-08 SKW4895 - Jul 8, 13:00 UTCJul 8, 15:45 UTC2h 45m
2026-07-08 SKW4895 OKC → LAX Jul 8, 12:56 UTCJul 8, 15:41 UTC2h 45m

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 N519SY page for operator, model, and routing details .

Mode-S A68485 frequently asked

What is Mode-S code A68485?
A68485 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N519SY.
Where is Mode-S A68485 registered?
Mode-S code A68485 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 A68485 broadcasting right now?
Yes. Mode-S A68485 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A68485, octal 51502205, decimal 10,912,901.
What flights does A68485 operate?
Mode-S A68485 has broadcast 20 distinct callsigns, including SKW6409, SKW6307, SKW5005, SKW4957, SKW4898.