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sensors Mode-S transponder

A2A213

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N269SY · EMBRAER ERJ-170-200 (long wing) · operated by SKYWEST AIRLINES INC

Hex
A2A213
Octal
50521023
Decimal
10,658,323
Country
US
Tail
N269SY
Type
E75L
No current signal · last broadcast 4h ago
Flights observed
437
Distinct callsigns
20
Country
US
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S A2A213.

Country allocation

The ICAO 24-bit address A2A213 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
SKW3935 - 29 2026-06-29
SKW3989 - 15 2026-06-30
SKW3771 - 15 2026-07-11
SKW4025 - 14 2026-07-11
SKW4473 - 13 2026-07-11
SKW3995 - 13 2026-06-21
SKW4470 - 12 2026-07-10
SKW4454 SkyWest Airlines 12 2026-05-07
SKW4019 SkyWest Airlines 12 2026-05-16
SKW172E SkyWest Airlines 12 2026-05-16
SKW3927 - 11 2026-06-20
SKW3689 - 11 2026-07-10
SKW4457 SkyWest Airlines 10 2026-05-01
SKW4129 - 9 2026-06-30
SKW3996 - 9 2026-06-30
SKW3925 - 9 2026-07-09
SKW4038 SkyWest Airlines 8 2026-05-01
SKW3903 - 8 2026-07-13
SKW4134 - 7 2026-07-13
SKW4102 SkyWest Airlines 7 2026-05-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SKW120W - Jul 14, 03:00 UTCJul 14, 04:10 UTC1h 10m
2026-07-13 SKW166C SLC → SLC Jul 13, 22:15 UTCJul 14, 01:45 UTC3h 30m
2026-07-13 SKW4134 OAK → SLC Jul 13, 19:35 UTCJul 13, 21:05 UTC1h 30m
2026-07-13 SKW4134 SLC → OAK Jul 13, 16:55 UTCJul 13, 18:30 UTC1h 35m
2026-07-13 SKW4069 SBA → SLC Jul 13, 13:06 UTCJul 13, 14:28 UTC1h 22m
2026-07-13 SKW4069 SBA → SLC Jul 13, 13:00 UTCJul 13, 14:30 UTC1h 30m
2026-07-13 SKW3803 SLC → SBA Jul 13, 03:40 UTCJul 13, 05:10 UTC1h 30m
2026-07-13 SKW3903 OAK → SLC Jul 13, 01:10 UTCJul 13, 02:40 UTC1h 30m
2026-07-12 SKW3903 SLC → OAK Jul 12, 22:55 UTCJul 13, 00:25 UTC1h 30m
2026-07-12 SKW3859 GTF → SLC Jul 12, 19:35 UTCJul 12, 20:38 UTC1h 3m
2026-07-12 SKW3859 SLC → SLC Jul 12, 17:10 UTCJul 12, 20:40 UTC3h 30m
2026-07-12 SKW4022 - Jul 12, 14:25 UTCJul 12, 14:50 UTC25m
2026-07-12 SKW4022 JAC → SLC Jul 12, 14:18 UTCJul 12, 14:49 UTC31m
2026-07-12 SKW4086 MSP → JAC Jul 12, 00:16 UTCJul 12, 02:11 UTC1h 55m
2026-07-12 SKW4086 - Jul 12, 00:05 UTCJul 12, 01:45 UTC1h 40m
2026-07-11 SKW4473 RST → MSP Jul 11, 22:01 UTCJul 11, 22:22 UTC21m
2026-07-11 SKW4473 RST → MSP Jul 11, 21:55 UTCJul 11, 22:25 UTC30m
2026-07-11 SKW4473 MSP → RST Jul 11, 20:30 UTCJul 11, 20:50 UTC20m
2026-07-11 SKW3771 - Jul 11, 18:30 UTCJul 11, 19:15 UTC45m
2026-07-11 SKW3771 MSP → FAR Jul 11, 16:25 UTCJul 11, 17:05 UTC40m
2026-07-11 SKW3931 - Jul 11, 13:35 UTCJul 11, 15:05 UTC1h 30m
2026-07-11 SKW4025 - Jul 11, 01:15 UTCJul 11, 01:40 UTC25m
2026-07-10 SKW3690 - Jul 10, 22:00 UTCJul 10, 22:35 UTC35m
2026-07-10 SKW3689 - Jul 10, 20:20 UTCJul 10, 20:50 UTC30m
2026-07-10 SKW3689 SLC → SUN Jul 10, 19:41 UTCJul 10, 20:59 UTC1h 18m
2026-07-10 SKW4470 - Jul 10, 17:50 UTCJul 10, 18:20 UTC30m
2026-07-10 SKW4470 - Jul 10, 15:45 UTCJul 10, 16:10 UTC25m
2026-07-10 SKW4030 - Jul 10, 13:15 UTCJul 10, 14:30 UTC1h 15m
2026-07-10 SKW120W - Jul 10, 03:05 UTCJul 10, 04:15 UTC1h 10m
2026-07-10 SKW3903 OAK → SLC Jul 10, 00:15 UTCJul 10, 01:40 UTC1h 25m
2026-07-09 SKW3903 SLC → OAK Jul 9, 21:30 UTCJul 9, 23:05 UTC1h 35m
2026-07-09 SKW3880 SLC → SLC Jul 9, 16:55 UTCJul 9, 20:30 UTC3h 35m
2026-07-09 SKW4022 - Jul 9, 14:40 UTCJul 9, 15:15 UTC35m
2026-07-09 SKW3925 - Jul 9, 00:00 UTCJul 9, 01:45 UTC1h 45m
2026-07-08 SKW4473 RST → MSP Jul 8, 22:00 UTCJul 8, 22:25 UTC25m
2026-07-08 SKW4473 MSP → RST Jul 8, 20:35 UTCJul 8, 21:00 UTC25m
2026-07-08 SKW3771 MSP → FWA Jul 8, 18:20 UTCJul 8, 19:05 UTC45m
2026-07-08 SKW3771 MSP → FWA Jul 8, 16:25 UTCJul 8, 17:00 UTC35m
2026-07-07 SKW3925 MSP → MSP Jul 7, 23:55 UTCJul 8, 15:00 UTC15h 5m
2026-07-07 SKW4473 RST → MSP Jul 7, 21:50 UTCJul 7, 22:20 UTC30m
2026-07-07 SKW4473 RST → MSP Jul 7, 21:50 UTCJul 7, 22:16 UTC26m
2026-07-07 SKW4473 MSP → RST Jul 7, 20:30 UTCJul 7, 20:50 UTC20m
2026-07-07 SKW3771 MSP → FWA Jul 7, 18:30 UTCJul 7, 19:05 UTC35m
2026-07-07 SKW3771 MSP → FWA Jul 7, 18:32 UTCJul 7, 19:05 UTC33m
2026-07-07 SKW3771 MSP → FWA Jul 7, 16:25 UTCJul 7, 17:05 UTC40m
2026-07-07 SKW3931 - Jul 7, 13:40 UTCJul 7, 15:10 UTC1h 30m
2026-07-07 SKW4025 SLC → JAC Jul 7, 00:42 UTCJul 7, 01:09 UTC27m
2026-07-07 SKW4025 - Jul 7, 00:35 UTCJul 7, 00:55 UTC20m
2026-07-06 SKW3690 BZN → SLC Jul 6, 21:25 UTCJul 6, 21:55 UTC30m
2026-07-06 SKW3689 - Jul 6, 19:35 UTCJul 6, 20:00 UTC25m

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 N269SY page for operator, model, and routing details .

Mode-S A2A213 frequently asked

What is Mode-S code A2A213?
A2A213 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N269SY.
Where is Mode-S A2A213 registered?
Mode-S code A2A213 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 A2A213 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A2A213, octal 50521023, decimal 10,658,323.
What flights does A2A213 operate?
Mode-S A2A213 has broadcast 20 distinct callsigns, including SKW3935, SKW3989, SKW3771, SKW4025, SKW4473.