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sensors Mode-S transponder

A02DDA

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N110SY · EMBRAER ERJ-170-200 (long wing) · operated by SKYWEST AIRLINES INC

Hex
A02DDA
Octal
50026732
Decimal
10,497,498
Country
US
Tail
N110SY
Type
E75L
No current signal · last broadcast Jul 26, 22:30 UTC
Flights observed
633
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:30 UTC

Last known position

Most recent position reported by Mode-S A02DDA.

Country allocation

The ICAO 24-bit address A02DDA 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
SKW5780 - 10 2026-07-17
SKW5771 SkyWest Airlines 9 2026-07-16
SKW5745 - 9 2026-07-22
SKW5787 - 8 2026-07-02
SKW5779 - 8 2026-07-17
SKW5776 - 8 2026-07-17
SKW5560 SkyWest Airlines 8 2026-07-22
SKW5766 - 7 2026-07-16
SKW5744 - 7 2026-06-13
SKW5711 SkyWest Airlines 7 2026-07-23
SKW565J - 7 2026-07-17
SKW5444 - 7 2026-07-22
SKW4766 SkyWest Airlines 7 2026-07-26
SKW5772 - 6 2026-07-16
SKW5759 SkyWest Airlines 6 2026-06-12
SKW5652 SkyWest Airlines 6 2026-06-14
SKW5529 - 6 2026-07-13
SKW5408 SkyWest Airlines 6 2026-06-12
SKW5329 - 6 2026-07-14
SKW769W - 5 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW4766 CHS → ORD Jul 26, 20:55 UTCJul 26, 22:30 UTC1h 35m
2026-07-26 SKW5447 MFR → SFO Jul 26, 17:35 UTCJul 26, 18:05 UTC30m
2026-07-26 SKW5447 MFR → SFO Jul 26, 17:39 UTCJul 26, 18:06 UTC27m
2026-07-26 SKW318J ORD → SDF Jul 26, 15:50 UTCJul 26, 16:25 UTC35m
2026-07-26 SKW5553 SFO → SNA Jul 26, 11:15 UTCJul 26, 12:05 UTC50m
2026-07-26 SKW5255 ORD → CID Jul 26, 02:45 UTCJul 26, 03:25 UTC40m
2026-07-25 SKW5956 ASE → ORD Jul 25, 19:15 UTCJul 25, 21:40 UTC2h 25m
2026-07-25 SKW5956 ASE → ORD Jul 25, 18:57 UTCJul 25, 21:21 UTC2h 24m
2026-07-25 SKW5814 RNO → SFO Jul 25, 15:25 UTCJul 25, 17:35 UTC2h 10m
2026-07-25 SKW5259 ICT → ORD Jul 25, 12:35 UTCJul 25, 13:15 UTC40m
2026-07-25 SKW376Z DEN → SHV Jul 25, 00:25 UTCJul 25, 02:05 UTC1h 40m
2026-07-24 SKW5541 SFO → RDM Jul 24, 18:50 UTCJul 24, 20:30 UTC1h 40m
2026-07-24 SKW5481 SMF → SFO Jul 24, 16:35 UTCJul 24, 17:50 UTC1h 15m
2026-07-24 SKW5736 SLC → SFO Jul 24, 01:50 UTCJul 24, 02:30 UTC40m
2026-07-23 SKW6030 ORD → CHO Jul 23, 22:53 UTCJul 24, 00:16 UTC1h 23m
2026-07-23 SKW6030 ORD → CHO Jul 23, 22:55 UTCJul 23, 23:40 UTC45m
2026-07-23 SKW5774 ASE → DEN Jul 23, 20:00 UTCJul 23, 20:20 UTC20m
2026-07-23 SKW5769 - Jul 23, 18:00 UTCJul 23, 18:15 UTC15m
2026-07-23 SKW5769 DEN → ASE Jul 23, 17:42 UTCJul 23, 18:22 UTC40m
2026-07-23 SKW4687 - Jul 23, 14:55 UTCJul 23, 15:20 UTC25m
2026-07-23 SKW5711 PHL → ORD Jul 23, 00:05 UTCJul 23, 02:05 UTC2h 0m
2026-07-22 SKW5711 PHL → ORD Jul 22, 23:55 UTCJul 23, 01:55 UTC2h 0m
2026-07-22 SKW5560 ORD → CMH Jul 22, 22:15 UTCJul 22, 22:55 UTC40m
2026-07-22 SKW5560 ORD → CMH Jul 22, 21:35 UTCJul 22, 22:50 UTC1h 15m
2026-07-22 SKW5854 ORD → MSN Jul 22, 19:30 UTCJul 22, 20:00 UTC30m
2026-07-22 SKW5745 - Jul 22, 16:35 UTCJul 22, 18:25 UTC1h 50m
2026-07-22 SKW5444 - Jul 22, 13:55 UTCJul 22, 14:10 UTC15m
2026-07-22 SKW5895 SGF → DEN Jul 22, 11:10 UTCJul 22, 12:40 UTC1h 30m
2026-07-22 SKW5687 OKC → IAH Jul 22, 03:05 UTCJul 22, 04:25 UTC1h 20m
2026-07-22 SKW5620 ORD → ABE Jul 22, 00:25 UTCJul 22, 01:20 UTC55m
2026-07-21 SKW5294 SAN → SFO Jul 21, 22:30 UTCJul 21, 23:20 UTC50m
2026-07-21 SKW5294 SAN → SFO Jul 21, 22:33 UTCJul 21, 23:19 UTC46m
2026-07-21 SKW4686 LIT → DEN Jul 21, 19:00 UTCJul 21, 20:35 UTC1h 35m
2026-07-21 SKW5369 TYS → ORD Jul 21, 15:55 UTCJul 21, 17:25 UTC1h 30m
2026-07-21 SKW5822 ORD → SDF Jul 21, 13:30 UTCJul 21, 14:55 UTC1h 25m
2026-07-20 SKW5219 - Jul 20, 23:20 UTCJul 21, 00:40 UTC1h 19m
2026-07-20 SKW5292 ORD → MTY Jul 20, 19:25 UTCJul 20, 21:20 UTC1h 55m
2026-07-20 SKW5292 ORD → MTY Jul 20, 19:32 UTCJul 20, 21:21 UTC1h 49m
2026-07-20 SKW5299 SFO → FAT Jul 20, 17:35 UTCJul 20, 18:17 UTC42m
2026-07-20 SKW6053 ORD → MLI Jul 20, 14:15 UTCJul 20, 16:00 UTC1h 45m
2026-07-19 SKW5416 EUG → SFO Jul 19, 21:20 UTCJul 20, 00:30 UTC3h 10m
2026-07-19 SKW4788 GEG → SFO Jul 19, 14:25 UTCJul 19, 17:20 UTC2h 55m
2026-07-18 SKW5416 EUG → SFO Jul 18, 21:30 UTCJul 19, 00:10 UTC2h 40m
2026-07-18 SKW5193 - Jul 18, 16:00 UTCJul 18, 16:30 UTC30m
2026-07-18 SKW5193 DTW → ORD Jul 18, 16:01 UTCJul 18, 16:45 UTC44m
2026-07-18 SKW769W - Jul 18, 00:35 UTCJul 18, 01:25 UTC50m
2026-07-17 SKW5780 - Jul 17, 21:34 UTCJul 17, 23:00 UTC1h 25m
2026-07-17 SKW5780 MEM → ORD Jul 17, 21:16 UTCJul 17, 22:54 UTC1h 38m
2026-07-17 SKW565J - Jul 17, 17:40 UTCJul 17, 18:44 UTC1h 5m
2026-07-17 SKW565J IAH → MEM Jul 17, 17:21 UTCJul 17, 18:44 UTC1h 23m

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 N110SY page for operator, model, and routing details .

Mode-S A02DDA frequently asked

What is Mode-S code A02DDA?
A02DDA is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N110SY.
Where is Mode-S A02DDA registered?
Mode-S code A02DDA 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 A02DDA 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 A02DDA, octal 50026732, decimal 10,497,498.
What flights does A02DDA operate?
Mode-S A02DDA has broadcast 20 distinct callsigns, including SKW5780, SKW5771, SKW5745, SKW5787, SKW5779.