Apparatus

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sensors Mode-S transponder

A30D6B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N296SY · EMBRAER ERJ-170-200 (long wing) · operated by SKYWEST AIRLINES INC

Hex
A30D6B
Octal
50606553
Decimal
10,685,803
Country
US
Tail
N296SY
Type
E75L
No current signal · last broadcast Jul 26, 22:25 UTC
Flights observed
710
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:25 UTC

Last known position

Most recent position reported by Mode-S A30D6B.

Country allocation

The ICAO 24-bit address A30D6B 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
SKW3991 SkyWest Airlines 10 2026-06-04
SKW3686 SkyWest Airlines 10 2026-07-22
SKW4091 - 8 2026-07-13
SKW3999 SkyWest Airlines 8 2026-05-09
SKW3951 SkyWest Airlines 8 2026-06-09
SKW3798 SkyWest Airlines 8 2026-07-25
SKW4042 SkyWest Airlines 7 2026-05-23
SKW4032 - 7 2026-06-23
SKW3989 SkyWest Airlines 7 2026-07-21
SKW3923 SkyWest Airlines 7 2026-06-13
SKW3777 - 7 2026-07-18
SKW3732 SkyWest Airlines 7 2026-05-24
SKW118R SkyWest Airlines 7 2026-05-27
SKW4148 SkyWest Airlines 6 2026-06-06
SKW4114 - 6 2026-07-20
SKW4063 SkyWest Airlines 6 2026-07-21
SKW4043 - 6 2026-07-12
SKW3966 SkyWest Airlines 6 2026-06-11
SKW3840 SkyWest Airlines 6 2026-06-03
SKW3828 SkyWest Airlines 6 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW3765 LAX → SJC Jul 26, 21:50 UTCJul 26, 22:25 UTC35m
2026-07-26 SKW3765 LAX → SJC Jul 26, 19:45 UTCJul 26, 20:10 UTC25m
2026-07-26 SKW4026 MSP → ATW Jul 26, 17:05 UTCJul 26, 18:35 UTC1h 30m
2026-07-26 SKW4451 SEA → SFO Jul 26, 15:00 UTCJul 26, 15:45 UTC45m
2026-07-26 SKW4115 ABQ → LAX Jul 26, 12:10 UTCJul 26, 13:45 UTC1h 35m
2026-07-26 SKW3729 SLC → ABQ Jul 26, 03:05 UTCJul 26, 04:25 UTC1h 20m
2026-07-26 SKW3828 SLC → BIL Jul 26, 01:20 UTCJul 26, 02:00 UTC40m
2026-07-25 SKW3828 SLC → BIL Jul 25, 22:30 UTCJul 25, 23:30 UTC1h 0m
2026-07-25 SKW3933 JFK → MSP Jul 25, 19:45 UTCJul 25, 21:15 UTC1h 30m
2026-07-25 SKW3933 JFK → MSP Jul 25, 17:05 UTCJul 25, 18:40 UTC1h 35m
2026-07-25 SKW3874 OMA → SLC Jul 25, 13:20 UTCJul 25, 15:30 UTC2h 10m
2026-07-25 SKW3706 BNA → JFK Jul 25, 02:55 UTCJul 25, 04:40 UTC1h 45m
2026-07-25 SKW3798 JFK → BNA Jul 25, 00:40 UTCJul 25, 01:45 UTC1h 5m
2026-07-25 SKW3798 JFK → BNA Jul 25, 00:29 UTCJul 25, 01:39 UTC1h 10m
2026-07-24 SKW3798 JFK → BNA Jul 24, 22:05 UTCJul 24, 23:15 UTC1h 10m
2026-07-24 SKW4112 JFK → ORD Jul 24, 17:10 UTCJul 24, 20:50 UTC3h 40m
2026-07-24 SKW4029 SJC → SLC Jul 24, 13:35 UTCJul 24, 15:40 UTC2h 5m
2026-07-24 SKW3703 BOS → EWR Jul 24, 02:35 UTCJul 24, 04:35 UTC2h 0m
2026-07-24 SKW144J SEA → SJC Jul 24, 00:00 UTCJul 24, 01:25 UTC1h 25m
2026-07-23 SKW144J SEA → SJC Jul 23, 23:54 UTCJul 24, 01:15 UTC1h 21m
2026-07-23 SKW108R SLC → LGB Jul 23, 21:25 UTCJul 23, 23:00 UTC1h 35m
2026-07-23 SKW3815 DLH → MSP Jul 23, 17:45 UTCJul 23, 19:55 UTC2h 10m
2026-07-23 SKW3838 OMA → MSP Jul 23, 15:55 UTCJul 23, 16:45 UTC50m
2026-07-23 SKW3844 MDW → MSP Jul 23, 12:55 UTCJul 23, 14:50 UTC1h 55m
2026-07-22 SKW3791 MSP → OKC Jul 22, 23:36 UTCJul 23, 00:47 UTC1h 11m
2026-07-22 SKW3791 MSP → OKC Jul 22, 23:20 UTCJul 23, 00:55 UTC1h 35m
2026-07-22 SKW3686 MSN → MSP Jul 22, 21:45 UTCJul 22, 22:15 UTC30m
2026-07-22 SKW3686 MSN → MSP Jul 22, 20:05 UTCJul 22, 20:30 UTC25m
2026-07-22 SKW3536 RST → MSP Jul 22, 17:00 UTCJul 22, 18:35 UTC1h 35m
2026-07-22 SKW3536 RST → MSP Jul 22, 14:30 UTCJul 22, 15:50 UTC1h 20m
2026-07-22 SKW3899 RAP → MSP Jul 22, 11:20 UTCJul 22, 13:10 UTC1h 50m
2026-07-22 SKW4035 CLE → BOS Jul 22, 01:20 UTCJul 22, 02:55 UTC1h 35m
2026-07-21 SKW4005 BIS → MSP Jul 21, 23:05 UTCJul 22, 00:05 UTC1h 0m
2026-07-21 SKW182J MSP → YWG Jul 21, 20:25 UTCJul 21, 21:40 UTC1h 15m
2026-07-21 SKW3989 PHX → LAX Jul 21, 17:35 UTCJul 21, 19:25 UTC1h 50m
2026-07-21 SKW3989 PHX → LAX Jul 21, 14:50 UTCJul 21, 16:25 UTC1h 35m
2026-07-21 SKW3660 MSP → YYZ Jul 21, 11:50 UTCJul 21, 12:50 UTC1h 0m
2026-07-21 SKW135K LAX → SJC Jul 21, 03:20 UTCJul 21, 04:25 UTC1h 5m
2026-07-21 SKW4063 SLC → OAK Jul 21, 00:20 UTCJul 21, 02:20 UTC2h 0m
2026-07-20 SKW4063 SLC → OAK Jul 20, 21:40 UTCJul 20, 23:20 UTC1h 40m
2026-07-20 SKW3848 - Jul 20, 19:10 UTCJul 20, 20:15 UTC1h 5m
2026-07-20 SKW4114 - Jul 20, 16:05 UTCJul 20, 17:55 UTC1h 50m
2026-07-20 SKW160Y - Jul 20, 01:25 UTCJul 20, 02:00 UTC35m
2026-07-19 SKW3895 DTW → ALB Jul 19, 23:50 UTCJul 20, 00:10 UTC20m
2026-07-19 SKW3916 ELM → DTW Jul 19, 19:30 UTCJul 19, 22:30 UTC3h 0m
2026-07-19 SKW4444 GEG → SLC Jul 19, 16:55 UTCJul 19, 18:30 UTC1h 35m
2026-07-19 SKW4444 SLC → GEG Jul 19, 14:15 UTCJul 19, 15:50 UTC1h 35m
2026-07-19 SKW101A - Jul 19, 12:05 UTCJul 19, 12:45 UTC40m
2026-07-19 SKW4279 ESC → MSP Jul 19, 03:05 UTCJul 19, 03:35 UTC30m
2026-07-19 SKW144J LGB → SLC Jul 19, 00:10 UTCJul 19, 01:35 UTC1h 25m

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 N296SY page for operator, model, and routing details .

Mode-S A30D6B frequently asked

What is Mode-S code A30D6B?
A30D6B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N296SY.
Where is Mode-S A30D6B registered?
Mode-S code A30D6B 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 A30D6B 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 A30D6B, octal 50606553, decimal 10,685,803.
What flights does A30D6B operate?
Mode-S A30D6B has broadcast 20 distinct callsigns, including SKW3991, SKW3686, SKW4091, SKW3999, SKW3951.