Apparatus

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sensors Mode-S transponder

A06F5A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N127SY · EMBRAER ERJ-170-200 (long wing) · operated by SKYWEST AIRLINES INC

Hex
A06F5A
Octal
50067532
Decimal
10,514,266
Country
US
Tail
N127SY
Type
E75L
No current signal · last broadcast Jul 26, 22:25 UTC
Flights observed
567
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:25 UTC

Last known position

Most recent position reported by Mode-S A06F5A.

Country allocation

The ICAO 24-bit address A06F5A 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
SKW5549 SkyWest Airlines 8 2026-04-30
SKW6005 - 7 2026-07-12
SKW5406 SkyWest Airlines 7 2026-04-30
SKW5937 SkyWest Airlines 6 2026-04-27
SKW5926 SkyWest Airlines 5 2026-07-24
SKW5709 SkyWest Airlines 5 2026-06-09
SKW5650 - 5 2026-07-19
SKW5440 SkyWest Airlines 5 2026-04-27
SKW5413 - 5 2026-06-30
SKW5288 SkyWest Airlines 5 2026-05-24
SKW5999 - 4 2026-07-09
SKW5932 - 4 2026-07-03
SKW5875 SkyWest Airlines 4 2026-05-13
SKW5805 SkyWest Airlines 4 2026-04-27
SKW5764 SkyWest Airlines 4 2026-05-30
SKW5732 SkyWest Airlines 4 2026-07-24
SKW5584 SkyWest Airlines 4 2026-07-25
SKW5533 - 4 2026-07-13
SKW5465 SkyWest Airlines 4 2026-07-26
SKW5453 SkyWest Airlines 4 2026-06-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW4791 SFO → RDD Jul 26, 20:35 UTCJul 26, 22:25 UTC1h 50m
2026-07-26 SKW5465 ORD → HPN Jul 26, 17:35 UTCJul 26, 19:35 UTC2h 0m
2026-07-26 SKW5326 BUR → SFO Jul 26, 14:55 UTCJul 26, 16:25 UTC1h 30m
2026-07-25 SKW5588 FSD → ORD Jul 25, 23:55 UTCJul 26, 01:05 UTC1h 10m
2026-07-25 SKW5584 ORD → ABE Jul 25, 21:10 UTCJul 25, 22:15 UTC1h 5m
2026-07-25 SKW5584 ORD → ABE Jul 25, 21:23 UTCJul 25, 22:13 UTC50m
2026-07-25 SKW5381 FCA → ORD Jul 25, 18:20 UTCJul 25, 19:10 UTC50m
2026-07-25 SKW5756 SBP → SFO Jul 25, 16:20 UTCJul 25, 17:10 UTC50m
2026-07-25 SKW4673 FCA → DEN Jul 25, 12:40 UTCJul 25, 14:40 UTC2h 0m
2026-07-24 SKW5451 SFO → BFL Jul 24, 20:15 UTCJul 24, 21:55 UTC1h 40m
2026-07-24 SKW5732 ORD → TVC Jul 24, 15:50 UTCJul 24, 17:30 UTC1h 40m
2026-07-24 SKW5926 SNA → SFO Jul 24, 13:20 UTCJul 24, 14:55 UTC1h 35m
2026-07-23 SKW5209 GNV → ORD Jul 23, 21:20 UTCJul 23, 23:05 UTC1h 45m
2026-07-23 SKW5209 GNV → ORD Jul 23, 21:15 UTCJul 23, 22:45 UTC1h 30m
2026-07-23 SKW4727 DEN → MKE Jul 23, 04:55 UTCJul 23, 06:10 UTC1h 15m
2026-07-23 SKW5632 SNA → SFO Jul 23, 01:45 UTCJul 23, 03:25 UTC1h 40m
2026-07-22 SKW4783 ORD → AVL Jul 22, 20:20 UTCJul 22, 21:05 UTC45m
2026-07-22 SKW4783 ORD → AVL Jul 22, 20:17 UTCJul 22, 21:59 UTC1h 42m
2026-07-22 SKW6007 ORD → DCA Jul 22, 16:45 UTCJul 22, 18:10 UTC1h 25m
2026-07-22 SKW5476 AUS → LAX Jul 22, 14:15 UTCJul 22, 15:30 UTC1h 15m
2026-07-22 SKW5545 ORD → HPN Jul 22, 11:10 UTCJul 22, 12:20 UTC1h 10m
2026-07-21 SKW4805 - Jul 21, 20:05 UTCJul 21, 21:55 UTC1h 50m
2026-07-21 SKW5358 BOI → SFO Jul 21, 17:10 UTCJul 21, 18:30 UTC1h 20m
2026-07-21 SKW5247 ORD → AVP Jul 21, 14:20 UTCJul 21, 15:35 UTC1h 15m
2026-07-21 SKW4751 DEN → DIK Jul 21, 11:20 UTCJul 21, 12:35 UTC1h 15m
2026-07-20 SKW5278 HPN → ORD Jul 20, 23:35 UTCJul 21, 00:35 UTC1h 0m
2026-07-20 SKW5798 - Jul 20, 20:40 UTCJul 20, 21:55 UTC1h 15m
2026-07-20 SKW5414 FAR → DEN Jul 20, 17:55 UTCJul 20, 19:15 UTC1h 20m
2026-07-19 SKW5623 ORD → BHM Jul 19, 18:25 UTCJul 19, 21:20 UTC2h 55m
2026-07-19 SKW6014 - Jul 19, 15:50 UTCJul 19, 17:25 UTC1h 35m
2026-07-19 SKW6014 SFO → GEG Jul 19, 15:29 UTCJul 19, 17:20 UTC1h 51m
2026-07-19 SKW4724 BFL → SFO Jul 19, 13:16 UTCJul 19, 13:54 UTC38m
2026-07-19 SKW4724 BFL → SFO Jul 19, 13:15 UTCJul 19, 13:55 UTC40m
2026-07-19 SKW4737 - Jul 19, 06:10 UTCJul 19, 06:55 UTC45m
2026-07-19 SKW5339 SAV → ORD Jul 19, 02:40 UTCJul 19, 03:45 UTC1h 5m
2026-07-19 SKW5339 SAV → ORD Jul 19, 02:43 UTCJul 19, 03:39 UTC56m
2026-07-19 SKW5650 - Jul 19, 00:15 UTCJul 19, 01:20 UTC1h 5m
2026-07-18 SKW5650 SFO → SNA Jul 18, 23:55 UTCJul 19, 01:19 UTC1h 24m
2026-07-18 SKW5625 BFL → SFO Jul 18, 20:57 UTCJul 18, 21:34 UTC37m
2026-07-18 SKW5625 BFL → SFO Jul 18, 20:55 UTCJul 18, 21:35 UTC40m
2026-07-18 SKW4668 PHX → SFO Jul 18, 17:40 UTCJul 18, 19:35 UTC1h 55m
2026-07-18 SKW5898 SGF → DEN Jul 18, 14:10 UTCJul 18, 15:40 UTC1h 30m
2026-07-18 SKW5898 SGF → DEN Jul 18, 14:25 UTCJul 18, 15:45 UTC1h 20m
2026-07-17 SKW5886 - Jul 17, 23:50 UTCJul 18, 01:10 UTC1h 20m
2026-07-17 SKW5673 ORD → MEM Jul 17, 21:55 UTCJul 17, 22:35 UTC40m
2026-07-17 SKW5616 ATL → ORD Jul 17, 20:00 UTCJul 17, 20:20 UTC20m
2026-07-17 SKW6041 - Jul 17, 16:34 UTCJul 17, 18:10 UTC1h 35m
2026-07-17 SKW6041 BOI → DEN Jul 17, 16:35 UTCJul 17, 18:05 UTC1h 30m
2026-07-17 SKW6027 - Jul 17, 07:44 UTCJul 17, 08:54 UTC1h 10m
2026-07-17 SKW5339 - Jul 17, 03:14 UTCJul 17, 04:14 UTC1h 0m

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 N127SY page for operator, model, and routing details .

Mode-S A06F5A frequently asked

What is Mode-S code A06F5A?
A06F5A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N127SY.
Where is Mode-S A06F5A registered?
Mode-S code A06F5A 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 A06F5A broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A06F5A, octal 50067532, decimal 10,514,266.
What flights does A06F5A operate?
Mode-S A06F5A has broadcast 20 distinct callsigns, including SKW5549, SKW6005, SKW5406, SKW5937, SKW5926.