sensors Mode-S transponder

AC3338

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8853Q · BOEING 737 MAX 8 · operated by SOUTHWEST AIRLINES CO

Hex
AC3338
Octal
53031470
Decimal
11,285,304
Country
US
Tail
N8853Q
Type
B38M
No current signal · last broadcast 1d ago
Flights observed
13
Distinct callsigns
6
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S AC3338.

Country allocation

The ICAO 24-bit address AC3338 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 6 distinct

Callsign Airline Flights Last seen
SWA1900 Southwest Airlines 3 2026-04-13
SWA1330 - 3 2026-04-13
SWA1250 - 3 2026-04-13
SWA4422 Southwest Airlines 2 2026-04-12
SWA2968 - 1 2026-04-13
SWA116 - 1 2026-04-13

Recent flights last 13

DateFlightRouteTakeoffLandingDuration
2026-04-13 SWA1900 LAS → OMA Apr 13, 22:45 UTCApr 13, 23:45 UTC1h 0m
2026-04-13 SWA1900 LAS → OMA Apr 13, 19:45 UTCApr 13, 20:10 UTC25m
2026-04-13 SWA1900 LAS → OMA Apr 13, 19:35 UTCApr 13, 19:40 UTC5m
2026-04-13 SWA1330 - Apr 13, 16:15 UTCApr 13, 17:50 UTC1h 35m
2026-04-13 SWA1330 - Apr 13, 16:00 UTCApr 13, 18:02 UTC2h 2m
2026-04-13 SWA1330 - Apr 13, 16:00 UTCApr 13, 17:48 UTC1h 48m
2026-04-13 SWA2968 - Apr 13, 12:49 UTCApr 13, 14:49 UTC2h 0m
2026-04-13 SWA116 MDW → BNA Apr 13, 10:40 UTCApr 13, 11:40 UTC1h 0m
2026-04-13 SWA1250 - Apr 13, 03:00 UTCApr 13, 03:35 UTC35m
2026-04-13 SWA1250 MCO → MDW Apr 13, 01:20 UTCApr 13, 03:35 UTC2h 15m
2026-04-13 SWA1250 - Apr 13, 00:10 UTCApr 13, 02:44 UTC2h 34m
2026-04-12 SWA4422 SAN → SJC Apr 12, 20:00 UTCApr 12, 20:15 UTC15m
2026-04-12 SWA4422 SAN → SJC Apr 12, 16:39 UTCApr 12, 19:45 UTC3h 6m

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 N8853Q page for operator, model, and routing details .

Mode-S AC3338 frequently asked

What is Mode-S code AC3338?
AC3338 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8853Q.
Where is Mode-S AC3338 registered?
Mode-S code AC3338 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 AC3338 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC3338, octal 53031470, decimal 11,285,304.
What flights does AC3338 operate?
Mode-S AC3338 has broadcast 6 distinct callsigns, including SWA1900, SWA1330, SWA1250, SWA4422, SWA2968.