Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A324B0

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N301SY · EMBRAER ERJ-170-200 (long wing) · operated by SKYWEST AIRLINES INC

Hex
A324B0
Octal
50622260
Decimal
10,691,760
Country
US
Tail
N301SY
Type
E75L
No current signal · last broadcast Jul 26, 20:40 UTC
Flights observed
720
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:40 UTC

Last known position

Most recent position reported by Mode-S A324B0.

Country allocation

The ICAO 24-bit address A324B0 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
SKW3736 SkyWest Airlines 20 2026-07-09
SKW3897 - 19 2026-07-12
SKW4141 - 16 2026-07-13
SKW4031 SkyWest Airlines 14 2026-05-30
SKW3857 - 14 2026-07-10
SKW3708 SkyWest Airlines 13 2026-07-24
SKW4443 SkyWest Airlines 11 2026-07-23
SKW3992 SkyWest Airlines 11 2026-05-30
SKW3859 SkyWest Airlines 11 2026-07-22
SKW3809 SkyWest Airlines 11 2026-04-25
SKW3777 SkyWest Airlines 11 2026-07-26
SKW3768 - 11 2026-07-19
SKW3735 - 11 2026-07-13
SKW3892 SkyWest Airlines 10 2026-07-25
SKW3718 SkyWest Airlines 10 2026-06-16
SKW137C SkyWest Airlines 10 2026-07-24
SKW4125 SkyWest Airlines 9 2026-05-16
SKW3903 SkyWest Airlines 9 2026-04-26
SKW3852 - 9 2026-07-18
SKW194R - 9 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW129H YYC → SLC Jul 26, 18:45 UTCJul 26, 20:35 UTC1h 50m
2026-07-26 SKW104T SLC → YYC Jul 26, 15:35 UTCJul 26, 17:15 UTC1h 40m
2026-07-26 SKW4004 ATL → SBN Jul 26, 12:20 UTCJul 26, 13:35 UTC1h 15m
2026-07-26 SKW3756 HPN → DTW Jul 26, 03:55 UTCJul 26, 05:10 UTC1h 15m
2026-07-26 SKW3777 HPN → ATL Jul 26, 01:25 UTCJul 26, 02:35 UTC1h 10m
2026-07-25 SKW3777 HPN → ATL Jul 25, 22:15 UTCJul 25, 22:50 UTC35m
2026-07-25 SKW3892 ICT → MSP Jul 25, 19:30 UTCJul 25, 20:40 UTC1h 10m
2026-07-25 SKW3892 ICT → MSP Jul 25, 19:36 UTCJul 25, 20:36 UTC1h 0m
2026-07-25 SKW3892 ICT → MSP Jul 25, 17:05 UTCJul 25, 18:20 UTC1h 15m
2026-07-25 SKW117W COS → SLC Jul 25, 14:33 UTCJul 25, 15:44 UTC1h 11m
2026-07-25 SKW117W COS → SLC Jul 25, 14:25 UTCJul 25, 15:50 UTC1h 25m
2026-07-25 SKW3788 ORD → JFK Jul 25, 03:25 UTCJul 25, 04:40 UTC1h 15m
2026-07-25 SKW3788 ORD → JFK Jul 25, 03:16 UTCJul 25, 04:34 UTC1h 18m
2026-07-25 SKW3732 PHL → DTW Jul 25, 00:55 UTCJul 25, 02:05 UTC1h 10m
2026-07-24 SKW3732 PHL → DTW Jul 24, 22:25 UTCJul 24, 23:30 UTC1h 5m
2026-07-24 SKW3933 JFK → MSP Jul 24, 19:40 UTCJul 24, 21:05 UTC1h 25m
2026-07-24 SKW3933 JFK → MSP Jul 24, 16:55 UTCJul 24, 18:30 UTC1h 35m
2026-07-24 SKW3708 SEA → SFO Jul 24, 13:20 UTCJul 24, 14:45 UTC1h 25m
2026-07-24 SKW3708 SEA → SFO Jul 24, 13:14 UTCJul 24, 14:44 UTC1h 30m
2026-07-24 SKW137C MDT → DTW Jul 24, 05:05 UTCJul 24, 06:55 UTC1h 50m
2026-07-23 SKW3882 SLC → OKC Jul 23, 23:10 UTCJul 24, 01:15 UTC2h 5m
2026-07-23 SKW116X ATL → SBN Jul 23, 20:00 UTCJul 23, 22:05 UTC2h 5m
2026-07-23 SKW3786 IND → LGA Jul 23, 17:15 UTCJul 23, 18:30 UTC1h 15m
2026-07-23 SKW3786 IND → LGA Jul 23, 14:30 UTCJul 23, 15:45 UTC1h 15m
2026-07-23 SKW3901 EWR → BOS Jul 23, 11:58 UTCJul 23, 12:44 UTC46m
2026-07-23 SKW3839 SLC → HLN Jul 23, 03:30 UTCJul 23, 12:50 UTC9h 20m
2026-07-23 SKW4443 AUS → MSP Jul 23, 00:20 UTCJul 23, 01:45 UTC1h 25m
2026-07-23 SKW4443 AUS → MSP Jul 23, 00:17 UTCJul 23, 01:34 UTC1h 17m
2026-07-22 SKW4443 AUS → MSP Jul 22, 21:55 UTCJul 22, 23:20 UTC1h 25m
2026-07-22 SKW3859 LAX → OAK Jul 22, 17:25 UTCJul 22, 20:45 UTC3h 20m
2026-07-22 SKW3874 OMA → SLC Jul 22, 13:25 UTCJul 22, 15:30 UTC2h 5m
2026-07-22 SKW3874 OMA → SLC Jul 22, 13:21 UTCJul 22, 15:24 UTC2h 3m
2026-07-22 SKW3706 BNA → JFK Jul 22, 03:40 UTCJul 22, 05:25 UTC1h 45m
2026-07-22 SKW3706 BNA → JFK Jul 22, 03:04 UTCJul 22, 05:29 UTC2h 25m
2026-07-21 SKW4105 CLE → DTW Jul 21, 23:55 UTCJul 22, 01:30 UTC1h 35m
2026-07-21 SKW4105 CLE → DTW Jul 21, 21:15 UTCJul 21, 22:45 UTC1h 30m
2026-07-21 SKW3944 PDX → SEA Jul 21, 17:45 UTCJul 21, 18:20 UTC35m
2026-07-21 SKW3944 PDX → SEA Jul 21, 17:43 UTCJul 21, 18:19 UTC36m
2026-07-21 SKW3944 PDX → SEA Jul 21, 15:55 UTCJul 21, 16:20 UTC25m
2026-07-21 SKW3708 SEA → SFO Jul 21, 13:15 UTCJul 21, 14:45 UTC1h 30m
2026-07-21 SKW3708 SEA → SFO Jul 21, 13:14 UTCJul 21, 14:40 UTC1h 26m
2026-07-21 SKW137C MDT → DTW Jul 21, 05:10 UTCJul 21, 06:40 UTC1h 30m
2026-07-20 SKW3882 - Jul 20, 23:10 UTCJul 21, 01:05 UTC1h 54m
2026-07-20 SKW116X ATL → SBN Jul 20, 20:15 UTCJul 20, 22:20 UTC2h 5m
2026-07-20 SKW3786 - Jul 20, 17:05 UTCJul 20, 18:20 UTC1h 15m
2026-07-20 SKW3786 - Jul 20, 14:25 UTCJul 20, 15:35 UTC1h 10m
2026-07-20 SKW3845 SLC → GTF Jul 20, 03:15 UTCJul 20, 12:50 UTC9h 35m
2026-07-20 SKW3800 FSD → MSP Jul 20, 01:15 UTCJul 20, 01:50 UTC35m
2026-07-20 SKW3800 FSD → MSP Jul 20, 00:46 UTCJul 20, 01:45 UTC59m
2026-07-19 SKW3800 FSD → MSP Jul 19, 22:20 UTCJul 19, 22:55 UTC35m

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 N301SY page for operator, model, and routing details .

Mode-S A324B0 frequently asked

What is Mode-S code A324B0?
A324B0 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N301SY.
Where is Mode-S A324B0 registered?
Mode-S code A324B0 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 A324B0 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A324B0, octal 50622260, decimal 10,691,760.
What flights does A324B0 operate?
Mode-S A324B0 has broadcast 20 distinct callsigns, including SKW3736, SKW3897, SKW4141, SKW4031, SKW3857.