Apparatus

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sensors Mode-S transponder

A314D9

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N298SY · EMBRAER ERJ-170-200 (long wing) · operated by SKYWEST AIRLINES INC

Hex
A314D9
Octal
50612331
Decimal
10,687,705
Country
US
Tail
N298SY
Type
E75L
No current signal · last broadcast Jul 26, 21:30 UTC
Flights observed
693
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:30 UTC

Last known position

Most recent position reported by Mode-S A314D9.

Country allocation

The ICAO 24-bit address A314D9 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
SKW4449 SkyWest Airlines 24 2026-07-24
SKW3768 - 24 2026-07-21
SKW3786 - 17 2026-07-12
SKW4004 - 14 2026-07-20
SKW3756 - 13 2026-07-20
SKW116X - 13 2026-07-12
SKW4042 - 12 2026-07-22
SKW3882 - 12 2026-07-12
SKW3694 SkyWest Airlines 11 2026-06-17
SKW4052 SkyWest Airlines 10 2026-05-19
SKW3839 - 10 2026-07-11
SKW3800 SkyWest Airlines 10 2026-07-22
SKW3774 - 10 2026-07-10
SKW3728 - 10 2026-06-28
SKW3693 - 10 2026-07-11
SKW117W SkyWest Airlines 10 2026-07-23
SKW104T - 10 2026-07-20
SKW3944 - 9 2026-07-10
SKW3933 SkyWest Airlines 9 2026-07-19
SKW129H - 9 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW3741 SAN → LAS Jul 26, 20:35 UTCJul 26, 21:25 UTC50m
2026-07-26 SKW4078 SNA → LAS Jul 26, 18:10 UTCJul 26, 19:05 UTC55m
2026-07-26 SKW4078 SNA → LAS Jul 26, 16:00 UTCJul 26, 16:40 UTC40m
2026-07-26 SKW4179 SEA → EUG Jul 26, 03:05 UTCJul 26, 03:55 UTC50m
2026-07-26 SKW4179 SEA → EUG Jul 26, 01:20 UTCJul 26, 02:00 UTC40m
2026-07-25 SKW3751 DTW → SBN Jul 25, 22:55 UTCJul 25, 23:50 UTC55m
2026-07-25 SKW4001 CMH → MSP Jul 25, 21:35 UTCJul 25, 22:05 UTC30m
2026-07-25 SKW4001 CMH → MSP Jul 25, 21:31 UTCJul 25, 21:59 UTC28m
2026-07-25 SKW4108 LAX → ABQ Jul 25, 18:55 UTCJul 25, 20:25 UTC1h 30m
2026-07-25 SKW4084 SLC → ABQ Jul 25, 16:30 UTCJul 25, 17:40 UTC1h 10m
2026-07-25 SKW3862 SLC → SLC Jul 25, 03:30 UTCJul 25, 13:05 UTC9h 35m
2026-07-24 SKW4105 CLE → DTW Jul 24, 23:55 UTCJul 25, 01:25 UTC1h 30m
2026-07-24 SKW4105 CLE → DTW Jul 24, 23:59 UTCJul 25, 01:19 UTC1h 20m
2026-07-24 SKW4105 CLE → DTW Jul 24, 21:20 UTCJul 24, 22:55 UTC1h 35m
2026-07-24 SKW4019 SLC → ABQ Jul 24, 19:30 UTCJul 24, 20:05 UTC35m
2026-07-24 SKW4019 SLC → ABQ Jul 24, 19:26 UTCJul 24, 19:58 UTC32m
2026-07-24 SKW172E SLC → SUN Jul 24, 17:30 UTCJul 24, 18:00 UTC30m
2026-07-24 SKW174P YYC → SLC Jul 24, 13:50 UTCJul 24, 15:30 UTC1h 40m
2026-07-24 SKW154F SLC → YYC Jul 24, 03:10 UTCJul 24, 04:45 UTC1h 35m
2026-07-24 SKW4449 SLC → COS Jul 24, 00:35 UTCJul 24, 01:55 UTC1h 20m
2026-07-23 SKW4449 SLC → COS Jul 23, 22:25 UTCJul 23, 23:35 UTC1h 10m
2026-07-23 SKW117W COS → SLC Jul 23, 16:45 UTCJul 23, 17:55 UTC1h 10m
2026-07-23 SKW3788 ORD → JFK Jul 23, 03:10 UTCJul 23, 04:40 UTC1h 30m
2026-07-23 SKW3732 PHL → DTW Jul 23, 00:55 UTCJul 23, 02:05 UTC1h 10m
2026-07-22 SKW3732 PHL → DTW Jul 22, 22:30 UTCJul 22, 23:30 UTC1h 0m
2026-07-22 SKW4042 - Jul 22, 19:45 UTCJul 22, 21:00 UTC1h 15m
2026-07-22 SKW4042 - Jul 22, 17:10 UTCJul 22, 18:20 UTC1h 10m
2026-07-22 SKW3862 GTF → SLC Jul 22, 11:48 UTCJul 22, 12:39 UTC51m
2026-07-22 SKW3845 SLC → GTF Jul 22, 03:55 UTCJul 22, 12:45 UTC8h 50m
2026-07-22 SKW3800 FSD → MSP Jul 22, 01:10 UTCJul 22, 01:45 UTC35m
2026-07-21 SKW3800 FSD → MSP Jul 21, 22:20 UTCJul 21, 22:55 UTC35m
2026-07-21 SKW3768 - Jul 21, 19:50 UTCJul 21, 21:10 UTC1h 20m
2026-07-21 SKW3768 - Jul 21, 17:15 UTCJul 21, 18:30 UTC1h 15m
2026-07-21 SKW117W COS → SLC Jul 21, 14:45 UTCJul 21, 16:10 UTC1h 25m
2026-07-21 SKW117W COS → SLC Jul 21, 14:32 UTCJul 21, 15:50 UTC1h 18m
2026-07-21 SKW3788 ORD → JFK Jul 21, 03:20 UTCJul 21, 04:40 UTC1h 20m
2026-07-21 SKW4443 - Jul 21, 00:20 UTCJul 21, 01:50 UTC1h 30m
2026-07-20 SKW4443 SLC → ONT Jul 20, 21:45 UTCJul 20, 23:10 UTC1h 25m
2026-07-20 SKW129H YYC → SLC Jul 20, 18:50 UTCJul 20, 20:30 UTC1h 40m
2026-07-20 SKW104T SLC → YYC Jul 20, 15:40 UTCJul 20, 17:20 UTC1h 40m
2026-07-20 SKW4004 - Jul 20, 12:15 UTCJul 20, 13:25 UTC1h 10m
2026-07-20 SKW3756 SLC → RDM Jul 20, 05:30 UTCJul 20, 06:45 UTC1h 15m
2026-07-20 SKW3756 SLC → RDM Jul 20, 05:37 UTCJul 20, 06:44 UTC1h 7m
2026-07-20 SKW3732 PHL → DTW Jul 20, 00:50 UTCJul 20, 01:55 UTC1h 5m
2026-07-20 SKW3732 PHL → DTW Jul 20, 00:42 UTCJul 20, 01:44 UTC1h 2m
2026-07-19 SKW3732 PHL → DTW Jul 19, 22:25 UTCJul 19, 23:35 UTC1h 10m
2026-07-19 SKW3933 JFK → MSP Jul 19, 19:45 UTCJul 19, 21:15 UTC1h 30m
2026-07-19 SKW3933 JFK → MSP Jul 19, 19:45 UTCJul 19, 21:10 UTC1h 25m
2026-07-19 SKW3933 JFK → MSP Jul 19, 17:05 UTCJul 19, 18:35 UTC1h 30m
2026-07-19 SKW174P YYC → SLC Jul 19, 14:10 UTCJul 19, 16:00 UTC1h 50m

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 N298SY page for operator, model, and routing details .

Mode-S A314D9 frequently asked

What is Mode-S code A314D9?
A314D9 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N298SY.
Where is Mode-S A314D9 registered?
Mode-S code A314D9 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 A314D9 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A314D9, octal 50612331, decimal 10,687,705.
What flights does A314D9 operate?
Mode-S A314D9 has broadcast 20 distinct callsigns, including SKW4449, SKW3768, SKW3786, SKW4004, SKW3756.