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 SKW4988 · 4,575 ft
Flights observed
662
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:15 UTC

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 SkyWest Airlines 24 2026-07-25
SKW6336 SkyWest Airlines 16 2026-07-24
SKW6307 - 16 2026-07-15
SKW6330 SkyWest Airlines 15 2026-07-23
SKW5005 SkyWest Airlines 15 2026-07-24
SKW4898 SkyWest Airlines 15 2026-07-21
SKW6188 SkyWest Airlines 14 2026-07-24
SKW4895 - 14 2026-07-21
SKW4957 - 13 2026-06-26
SKW6415 - 12 2026-06-22
SKW6366 SkyWest Airlines 12 2026-06-08
SKW4987 SkyWest Airlines 12 2026-05-12
SKW6190 SkyWest Airlines 11 2026-07-25
SKW6294 - 10 2026-07-18
SKW6221 - 10 2026-06-25
SKW6346 - 9 2026-07-16
SKW6278 SkyWest Airlines 9 2026-07-21
SKW6212 SkyWest Airlines 9 2026-05-09
SKW6185 SkyWest Airlines 9 2026-07-23
SKW4920 SkyWest Airlines 9 2026-06-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW6272 MRY → PHX Jul 26, 19:30 UTCJul 26, 21:15 UTC1h 45m
2026-07-26 SKW6272 MRY → PHX Jul 26, 15:50 UTCJul 26, 18:25 UTC2h 35m
2026-07-26 SKW6227 MCI → ORD Jul 26, 11:20 UTCJul 26, 14:30 UTC3h 10m
2026-07-26 SKW6227 MCI → ORD Jul 26, 11:19 UTCJul 26, 14:31 UTC3h 12m
2026-07-26 SKW6224 ABQ → LAX Jul 26, 01:55 UTCJul 26, 04:55 UTC3h 0m
2026-07-26 SKW6224 ABQ → LAX Jul 26, 01:54 UTCJul 26, 04:43 UTC2h 49m
2026-07-25 SKW6409 ORD → DTW Jul 25, 22:20 UTCJul 26, 01:00 UTC2h 40m
2026-07-25 SKW6409 ORD → DTW Jul 25, 18:35 UTCJul 25, 21:20 UTC2h 45m
2026-07-25 SKW4919 SBA → PHX Jul 25, 16:00 UTCJul 25, 17:30 UTC1h 30m
2026-07-25 SKW296Y LAX → ABQ Jul 25, 04:00 UTCJul 25, 05:45 UTC1h 45m
2026-07-25 SKW4946 ORD → BUF Jul 25, 02:20 UTCJul 25, 03:05 UTC45m
2026-07-25 SKW6190 ORD → DTW Jul 25, 00:15 UTCJul 25, 01:05 UTC50m
2026-07-24 SKW6188 ORD → DTW Jul 24, 21:35 UTCJul 24, 22:35 UTC1h 0m
2026-07-24 SKW6188 ORD → DTW Jul 24, 19:25 UTCJul 24, 20:20 UTC55m
2026-07-24 SKW6336 PHX → ICT Jul 24, 16:55 UTCJul 24, 17:15 UTC20m
2026-07-24 SKW6336 PHX → ICT Jul 24, 16:56 UTCJul 24, 17:47 UTC51m
2026-07-24 SKW6336 PHX → ICT Jul 24, 15:00 UTCJul 24, 15:55 UTC55m
2026-07-24 SKW5005 PHX → STS Jul 24, 02:40 UTCJul 24, 05:50 UTC3h 10m
2026-07-23 SKW5005 PHX → STS Jul 23, 21:50 UTCJul 24, 01:20 UTC3h 30m
2026-07-23 SKW6330 BTV → ORD Jul 23, 19:15 UTCJul 23, 20:15 UTC1h 0m
2026-07-23 SKW6330 BTV → ORD Jul 23, 19:03 UTCJul 23, 20:09 UTC1h 6m
2026-07-23 SKW6330 BTV → ORD Jul 23, 17:00 UTCJul 23, 18:10 UTC1h 10m
2026-07-23 SKW6185 SFO → LAX Jul 23, 12:30 UTCJul 23, 15:10 UTC2h 40m
2026-07-22 SKW4979 DFW → MLU Jul 22, 23:50 UTCJul 23, 02:35 UTC2h 45m
2026-07-22 SKW6272 MRY → PHX Jul 22, 19:35 UTCJul 22, 22:10 UTC2h 35m
2026-07-22 SKW6272 MRY → PHX Jul 22, 15:55 UTCJul 22, 18:40 UTC2h 45m
2026-07-22 SKW4951 BNA → ORD Jul 22, 12:15 UTCJul 22, 14:45 UTC2h 30m
2026-07-22 SKW4962 LAX → SAT Jul 22, 01:35 UTCJul 22, 04:15 UTC2h 40m
2026-07-22 SKW4962 LAX → SAT Jul 22, 01:33 UTCJul 22, 04:12 UTC2h 39m
2026-07-21 SKW6278 PHX → BFL Jul 21, 21:00 UTCJul 21, 23:55 UTC2h 55m
2026-07-21 SKW6278 PHX → BFL Jul 21, 17:00 UTCJul 21, 19:45 UTC2h 45m
2026-07-21 SKW4895 - Jul 21, 12:50 UTCJul 21, 15:25 UTC2h 35m
2026-07-21 SKW4898 TUL → ORD Jul 21, 00:55 UTCJul 21, 03:45 UTC2h 50m
2026-07-21 SKW4898 TUL → ORD Jul 21, 00:50 UTCJul 21, 03:30 UTC2h 40m
2026-07-20 SKW6409 ORD → DTW Jul 20, 20:45 UTCJul 20, 23:35 UTC2h 50m
2026-07-20 SKW6409 ORD → DTW Jul 20, 17:05 UTCJul 20, 19:40 UTC2h 35m
2026-07-20 SKW6185 SFO → LAX Jul 20, 13:10 UTCJul 20, 15:50 UTC2h 40m
2026-07-20 SKW4979 DFW → MLU Jul 20, 00:05 UTCJul 20, 03:05 UTC3h 0m
2026-07-19 SKW6409 - Jul 19, 20:25 UTCJul 19, 23:00 UTC2h 35m
2026-07-19 SKW6409 AUS → LAX Jul 19, 20:21 UTCJul 19, 22:59 UTC2h 38m
2026-07-19 SKW6409 - Jul 19, 16:20 UTCJul 19, 19:10 UTC2h 50m
2026-07-19 SKW4951 BNA → ORD Jul 19, 12:00 UTCJul 19, 14:35 UTC2h 35m
2026-07-19 SKW4962 LAX → SAT Jul 19, 01:55 UTCJul 19, 04:35 UTC2h 40m
2026-07-18 SKW6278 - Jul 18, 22:05 UTCJul 19, 00:55 UTC2h 50m
2026-07-18 SKW6278 - Jul 18, 18:20 UTCJul 18, 21:05 UTC2h 45m
2026-07-18 SKW6294 - Jul 18, 13:25 UTCJul 18, 14:25 UTC1h 0m
2026-07-18 SKW6510 - Jul 18, 05:55 UTCJul 18, 06:55 UTC1h 0m
2026-07-18 SKW4971 DFW → LRD Jul 18, 01:05 UTCJul 18, 04:35 UTC3h 31m
2026-07-17 SKW4971 DFW → LRD Jul 17, 20:50 UTCJul 18, 00:04 UTC3h 15m
2026-07-17 SKW4887 - Jul 17, 18:19 UTCJul 17, 19:49 UTC1h 30m

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, SKW6336, SKW6307, SKW6330, SKW5005.