Apparatus

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sensors Mode-S transponder

ACA302

ICAO 24-bit transponder address · allocated to United States

Hex
ACA302
Octal
53121402
Decimal
11,313,922
Country
US
No current signal · last broadcast Jul 25, 19:10 UTC
Flights observed
99
Distinct callsigns
20
Country
US
Last broadcast
Jul 25, 19:10 UTC

Last known position

Most recent position reported by Mode-S ACA302.

Country allocation

The ICAO 24-bit address ACA302 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
SKW5436 - 3 2026-06-27
SKW5122 - 3 2026-07-16
SKW330Z - 3 2026-07-05
SKW768J - 2 2026-07-14
SKW6080 SkyWest Airlines 2 2026-07-20
SKW6076 - 2 2026-07-06
SKW6055 - 2 2026-07-06
SKW6025 - 2 2026-07-07
SKW6013 - 2 2026-06-26
SKW535G - 2 2026-07-12
SKW5213 - 2 2026-07-17
SKW5139 - 2 2026-06-19
SKW5128 - 2 2026-07-13
SKW5121 - 2 2026-07-18
SKW5119 - 2 2026-07-15
SKW5113 SkyWest Airlines 2 2026-07-22
SKW5111 - 2 2026-07-09
SKW5109 - 2 2026-07-09
SKW5100 - 2 2026-07-15
SKW5099 SkyWest Airlines 2 2026-07-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 SKW6065 TUS → IAH Jul 25, 18:35 UTCJul 25, 19:10 UTC35m
2026-07-25 SKW4690 CRW → ORD Jul 25, 16:00 UTCJul 25, 16:30 UTC30m
2026-07-25 SKW741Y DEN → COS Jul 25, 05:45 UTCJul 25, 06:05 UTC20m
2026-07-24 SKW4764 HPN → ORD Jul 24, 16:30 UTCJul 24, 17:15 UTC45m
2026-07-24 SKW4790 DEN → BIL Jul 24, 14:40 UTCJul 24, 15:05 UTC25m
2026-07-24 SKW406P DEN → COD Jul 24, 03:45 UTCJul 24, 04:25 UTC40m
2026-07-24 SKW406P DEN → COD Jul 24, 03:35 UTCJul 24, 03:40 UTC5m
2026-07-24 SKW5031 LAR → DEN Jul 24, 01:05 UTCJul 24, 01:40 UTC35m
2026-07-24 SKW5031 LAR → DEN Jul 24, 01:07 UTCJul 24, 01:35 UTC28m
2026-07-23 SKW5099 ORD → JST Jul 23, 20:25 UTCJul 23, 21:15 UTC50m
2026-07-23 SKW5099 ORD → JST Jul 23, 20:10 UTCJul 23, 21:12 UTC1h 2m
2026-07-23 SKW302C DEN → PIR Jul 23, 02:15 UTCJul 23, 03:15 UTC1h 0m
2026-07-22 SKW5113 ORD → JST Jul 22, 23:45 UTCJul 23, 00:25 UTC40m
2026-07-22 SKW5113 ORD → JST Jul 22, 20:00 UTCJul 22, 21:20 UTC1h 20m
2026-07-21 SKW5056 ORD → EAU Jul 21, 20:35 UTCJul 21, 21:30 UTC55m
2026-07-21 SKW5056 ORD → EAU Jul 21, 20:32 UTCJul 21, 21:28 UTC56m
2026-07-21 SKW339A DEN → LBF Jul 21, 03:15 UTCJul 21, 03:40 UTC25m
2026-07-20 SKW344H DEN → SUX Jul 20, 20:40 UTCJul 20, 21:55 UTC1h 15m
2026-07-20 SKW6080 BNA → ORD Jul 20, 15:00 UTCJul 20, 16:30 UTC1h 30m
2026-07-20 SKW6080 BNA → ORD Jul 20, 13:04 UTCJul 20, 17:11 UTC4h 7m
2026-07-18 SKW5272 LAX → SFO Jul 18, 14:05 UTCJul 18, 14:30 UTC25m
2026-07-18 SKW5121 - Jul 18, 10:10 UTCJul 18, 11:00 UTC50m
2026-07-18 SKW5121 EAU → ORD Jul 18, 10:14 UTCJul 18, 10:45 UTC31m
2026-07-17 SKW5296 - Jul 17, 22:45 UTCJul 17, 23:50 UTC1h 5m
2026-07-17 SKW5070 LAF → ORD Jul 17, 20:50 UTCJul 17, 21:34 UTC45m
2026-07-17 SKW5213 CAK → ORD Jul 17, 14:18 UTCJul 17, 14:53 UTC35m
2026-07-17 SKW5213 - Jul 17, 14:04 UTCJul 17, 15:05 UTC1h 0m
2026-07-16 SKW5122 - Jul 16, 19:40 UTCJul 16, 20:25 UTC45m
2026-07-16 SKW5122 EAU → ORD Jul 16, 19:49 UTCJul 16, 20:16 UTC27m
2026-07-16 SKW702H - Jul 16, 17:54 UTCJul 16, 18:34 UTC40m
2026-07-15 SKW5100 - Jul 15, 16:45 UTCJul 15, 17:40 UTC55m
2026-07-15 SKW5100 FOD → ORD Jul 15, 16:48 UTCJul 15, 17:30 UTC42m
2026-07-15 SKW5119 - Jul 15, 13:50 UTCJul 15, 15:10 UTC1h 20m
2026-07-15 SKW5119 DEN → FOD Jul 15, 13:59 UTCJul 15, 15:10 UTC1h 11m
2026-07-15 SKW357Z - Jul 15, 02:55 UTCJul 15, 03:25 UTC30m
2026-07-14 SKW768J - Jul 14, 22:15 UTCJul 14, 23:15 UTC59m
2026-07-14 SKW768J DEN → ROW Jul 14, 22:12 UTCJul 14, 23:11 UTC59m
2026-07-14 SKW5024 - Jul 14, 20:15 UTCJul 14, 20:35 UTC20m
2026-07-14 SKW5112 - Jul 14, 15:50 UTCJul 14, 17:10 UTC1h 20m
2026-07-14 SKW6056 - Jul 14, 14:05 UTCJul 14, 14:50 UTC45m
2026-07-13 SKW5128 - Jul 13, 20:10 UTCJul 13, 21:40 UTC1h 30m
2026-07-13 SKW5128 MGM → IAH Jul 13, 20:08 UTCJul 13, 21:40 UTC1h 32m
2026-07-12 SKW6066 - Jul 12, 17:05 UTCJul 12, 18:05 UTC1h 0m
2026-07-12 SKW535G - Jul 12, 15:01 UTCJul 12, 15:55 UTC55m
2026-07-12 SKW535G IAH → MEI Jul 12, 15:04 UTCJul 12, 15:59 UTC55m
2026-07-11 SKW5044 - Jul 11, 21:20 UTCJul 11, 21:55 UTC35m
2026-07-11 SKW5044 AEX → IAH Jul 11, 21:19 UTCJul 11, 21:56 UTC37m
2026-07-11 SKW753F - Jul 11, 19:35 UTCJul 11, 19:55 UTC20m
2026-07-11 SKW5049 - Jul 11, 13:55 UTCJul 11, 14:45 UTC50m
2026-07-11 SKW5049 IAH → PIB Jul 11, 13:31 UTCJul 11, 14:55 UTC1h 24m

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.

Mode-S ACA302 frequently asked

What is Mode-S code ACA302?
ACA302 is an ICAO 24-bit transponder address. Allocated to United States.
Where is Mode-S ACA302 registered?
Mode-S code ACA302 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 ACA302 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 19:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACA302, octal 53121402, decimal 11,313,922.
What flights does ACA302 operate?
Mode-S ACA302 has broadcast 20 distinct callsigns, including SKW5436, SKW5122, SKW330Z, SKW768J, SKW6080.