Apparatus

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sensors Mode-S transponder

A2ED5A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N288SY · EMBRAER ERJ-170-200 (long wing) · operated by SKYWEST AIRLINES INC

Hex
A2ED5A
Octal
50566532
Decimal
10,677,594
Country
US
Tail
N288SY
Type
E75L
No current signal · last broadcast Jul 26, 22:30 UTC
Flights observed
679
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:30 UTC

Last known position

Most recent position reported by Mode-S A2ED5A.

Country allocation

The ICAO 24-bit address A2ED5A 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
SKW3852 SkyWest Airlines 16 2026-07-26
SKW3992 - 14 2026-07-03
SKW3933 SkyWest Airlines 14 2026-07-26
SKW4153 - 12 2026-07-07
SKW3944 SkyWest Airlines 12 2026-07-24
SKW4075 - 11 2026-07-09
SKW3833 SkyWest Airlines 11 2026-05-29
SKW3777 SkyWest Airlines 11 2026-06-14
SKW4449 - 10 2026-07-21
SKW3786 - 9 2026-07-15
SKW3735 - 9 2026-07-08
SKW3732 SkyWest Airlines 9 2026-07-26
SKW4131 - 8 2026-07-09
SKW4070 SkyWest Airlines 8 2026-04-29
SKW3788 - 8 2026-07-20
SKW3719 SkyWest Airlines 8 2026-06-26
SKW120W SkyWest Airlines 8 2026-07-22
SKW4084 SkyWest Airlines 7 2026-07-18
SKW4042 - 7 2026-07-12
SKW3968 - 7 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW3732 PHL → DTW Jul 26, 22:25 UTCJul 26, 22:30 UTC5m
2026-07-26 SKW3933 JFK → MSP Jul 26, 19:40 UTCJul 26, 21:05 UTC1h 25m
2026-07-26 SKW3933 JFK → MSP Jul 26, 16:55 UTCJul 26, 18:25 UTC1h 30m
2026-07-26 SKW3769 OAK → LAX Jul 26, 12:30 UTCJul 26, 13:50 UTC1h 20m
2026-07-26 SKW3722 SEA → SJC Jul 26, 03:45 UTCJul 26, 05:10 UTC1h 25m
2026-07-26 SKW3722 SEA → SJC Jul 26, 03:49 UTCJul 26, 05:05 UTC1h 16m
2026-07-26 SKW3852 FWA → MSP Jul 26, 00:55 UTCJul 26, 02:00 UTC1h 5m
2026-07-25 SKW3852 FWA → MSP Jul 25, 21:55 UTCJul 25, 23:10 UTC1h 15m
2026-07-25 SKW3727 SLC → RDM Jul 25, 19:40 UTCJul 25, 20:55 UTC1h 15m
2026-07-25 SKW3727 SLC → RDM Jul 25, 19:43 UTCJul 25, 20:52 UTC1h 9m
2026-07-25 SKW3727 SLC → RDM Jul 25, 17:10 UTCJul 25, 18:25 UTC1h 15m
2026-07-25 SKW3769 OAK → LAX Jul 25, 14:10 UTCJul 25, 15:30 UTC1h 20m
2026-07-25 SKW3769 OAK → LAX Jul 25, 14:09 UTCJul 25, 15:25 UTC1h 16m
2026-07-25 SKW3722 SEA → SJC Jul 25, 05:05 UTCJul 25, 06:30 UTC1h 25m
2026-07-25 SKW3722 SEA → SJC Jul 25, 05:10 UTCJul 25, 06:28 UTC1h 18m
2026-07-25 SKW3828 SLC → BIL Jul 25, 01:10 UTCJul 25, 02:15 UTC1h 5m
2026-07-24 SKW3828 SLC → BIL Jul 24, 23:25 UTCJul 25, 00:20 UTC55m
2026-07-24 SKW3690 BZN → SLC Jul 24, 22:00 UTCJul 24, 22:30 UTC30m
2026-07-24 SKW3689 MSP → OMA Jul 24, 19:45 UTCJul 24, 20:10 UTC25m
2026-07-24 SKW3944 PDX → SEA Jul 24, 17:40 UTCJul 24, 18:10 UTC30m
2026-07-24 SKW3944 PDX → SEA Jul 24, 15:50 UTCJul 24, 16:20 UTC30m
2026-07-24 SKW3944 PDX → SEA Jul 24, 15:48 UTCJul 24, 16:34 UTC46m
2026-07-24 SKW4138 FAT → SLC Jul 24, 13:20 UTCJul 24, 14:30 UTC1h 10m
2026-07-24 SKW3774 SLC → FAT Jul 24, 02:45 UTCJul 24, 03:55 UTC1h 10m
2026-07-24 SKW3693 HPN → ATL Jul 24, 00:00 UTCJul 24, 01:25 UTC1h 25m
2026-07-24 SKW3693 HPN → ATL Jul 24, 00:02 UTCJul 24, 01:16 UTC1h 14m
2026-07-23 SKW3693 HPN → ATL Jul 23, 21:15 UTCJul 23, 22:50 UTC1h 35m
2026-07-23 SKW3944 PDX → SEA Jul 23, 17:40 UTCJul 23, 18:10 UTC30m
2026-07-23 SKW3944 PDX → SEA Jul 23, 16:10 UTCJul 23, 16:35 UTC25m
2026-07-23 SKW4138 FAT → SLC Jul 23, 13:05 UTCJul 23, 14:15 UTC1h 10m
2026-07-23 SKW3774 SLC → FAT Jul 23, 02:40 UTCJul 23, 03:45 UTC1h 5m
2026-07-23 SKW3693 HPN → ATL Jul 23, 00:05 UTCJul 23, 01:30 UTC1h 25m
2026-07-22 SKW3693 HPN → ATL Jul 22, 21:25 UTCJul 22, 23:05 UTC1h 40m
2026-07-22 SKW3944 PDX → SEA Jul 22, 17:45 UTCJul 22, 18:10 UTC25m
2026-07-22 SKW3944 PDX → SEA Jul 22, 16:05 UTCJul 22, 16:30 UTC25m
2026-07-22 SKW4030 SYR → DTW Jul 22, 13:25 UTCJul 22, 14:35 UTC1h 10m
2026-07-22 SKW120W SLC → PSP Jul 22, 03:40 UTCJul 22, 04:45 UTC1h 5m
2026-07-22 SKW3732 PHL → DTW Jul 22, 00:55 UTCJul 22, 02:00 UTC1h 5m
2026-07-21 SKW3732 PHL → DTW Jul 21, 22:30 UTCJul 21, 23:40 UTC1h 10m
2026-07-21 SKW3933 JFK → MSP Jul 21, 19:45 UTCJul 21, 21:10 UTC1h 25m
2026-07-21 SKW3933 JFK → MSP Jul 21, 16:55 UTCJul 21, 18:25 UTC1h 30m
2026-07-21 SKW174P YYC → SLC Jul 21, 14:00 UTCJul 21, 15:40 UTC1h 40m
2026-07-21 SKW154F SLC → YYC Jul 21, 03:05 UTCJul 21, 04:40 UTC1h 35m
2026-07-21 SKW4449 COS → SLC Jul 21, 00:35 UTCJul 21, 02:00 UTC1h 25m
2026-07-20 SKW4449 SLC → COS Jul 20, 22:10 UTCJul 20, 23:35 UTC1h 25m
2026-07-20 SKW3859 LAX → OAK Jul 20, 17:10 UTCJul 20, 20:40 UTC3h 30m
2026-07-20 SKW117W COS → SLC Jul 20, 14:25 UTCJul 20, 15:45 UTC1h 20m
2026-07-20 SKW3788 SLC → COS Jul 20, 03:15 UTCJul 20, 04:30 UTC1h 15m
2026-07-20 SKW4443 - Jul 20, 00:15 UTCJul 20, 01:50 UTC1h 35m
2026-07-19 SKW4443 SLC → ONT Jul 19, 21:50 UTCJul 19, 23:10 UTC1h 20m

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 N288SY page for operator, model, and routing details .

Mode-S A2ED5A frequently asked

What is Mode-S code A2ED5A?
A2ED5A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N288SY.
Where is Mode-S A2ED5A registered?
Mode-S code A2ED5A 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 A2ED5A broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A2ED5A, octal 50566532, decimal 10,677,594.
What flights does A2ED5A operate?
Mode-S A2ED5A has broadcast 20 distinct callsigns, including SKW3852, SKW3992, SKW3933, SKW4153, SKW3944.