sensors Mode-S transponder

AC486A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8905Q · operated by SOUTHWEST AIRLINES CO

Hex
AC486A
Octal
53044152
Decimal
11,290,730
Country
US
Tail
N8905Q
Type
B38M
Broadcasting now · callsign SWA1988 · 40,000 ft
Flights observed
18
Distinct callsigns
8
Country
US
Last broadcast
23h ago

Current position

AC486A is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AC486A 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 8 distinct

Callsign Airline Flights Last seen
SWA3658 - 4 2026-04-13
SWA1708 - 4 2026-04-13
SWA1150 - 4 2026-04-13
SWA1295 - 2 2026-04-13
SWA4420 - 1 2026-04-12
SWA2574 - 1 2026-04-13
SWA2324 Southwest Airlines 1 2026-04-12
SWA1545 Southwest Airlines 1 2026-04-13

Recent flights last 18

DateFlightRouteTakeoffLandingDuration
2026-04-13 SWA1545 OAK → PDX Apr 13, 20:20 UTCApr 13, 22:50 UTC2h 30m
2026-04-13 SWA1150 - Apr 13, 17:58 UTCApr 13, 19:18 UTC1h 20m
2026-04-13 SWA1150 - Apr 13, 16:15 UTCApr 13, 16:45 UTC30m
2026-04-13 SWA1150 - Apr 13, 15:50 UTCApr 13, 16:45 UTC55m
2026-04-13 SWA1150 - Apr 13, 15:40 UTCApr 13, 16:15 UTC35m
2026-04-13 SWA2574 - Apr 13, 12:55 UTCApr 13, 14:40 UTC1h 45m
2026-04-13 SWA3658 - Apr 13, 08:20 UTCApr 13, 10:35 UTC2h 15m
2026-04-13 SWA3658 - Apr 13, 07:55 UTCApr 13, 10:35 UTC2h 40m
2026-04-13 SWA3658 - Apr 13, 07:06 UTCApr 13, 10:34 UTC3h 28m
2026-04-13 SWA3658 - Apr 13, 07:06 UTCApr 13, 10:34 UTC3h 28m
2026-04-13 SWA1708 - Apr 13, 04:20 UTCApr 13, 05:55 UTC1h 35m
2026-04-13 SWA1708 - Apr 13, 03:55 UTCApr 13, 05:55 UTC2h 0m
2026-04-13 SWA1708 - Apr 13, 03:43 UTCApr 13, 05:48 UTC2h 5m
2026-04-13 SWA1708 - Apr 13, 03:24 UTCApr 13, 05:29 UTC2h 5m
2026-04-13 SWA1295 EOK → DEN Apr 13, 00:20 UTCApr 13, 02:05 UTC1h 45m
2026-04-12 SWA1295 - Apr 12, 23:55 UTCApr 13, 02:05 UTC2h 10m
2026-04-12 SWA4420 - Apr 12, 20:10 UTCApr 12, 22:10 UTC2h 0m
2026-04-12 SWA2324 RNO → OAK Apr 12, 17:06 UTCApr 12, 18:57 UTC1h 51m

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 N8905Q page for operator, model, and routing details .

Mode-S AC486A frequently asked

What is Mode-S code AC486A?
AC486A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8905Q.
Where is Mode-S AC486A registered?
Mode-S code AC486A 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 AC486A broadcasting right now?
Yes. Mode-S AC486A is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC486A, octal 53044152, decimal 11,290,730.
What flights does AC486A operate?
Mode-S AC486A has broadcast 8 distinct callsigns, including SWA3658, SWA1708, SWA1150, SWA1295, SWA4420.