Apparatus

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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
No current signal · last broadcast Jul 26, 22:30 UTC
Flights observed
776
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:30 UTC

Last known position

Most recent position reported by Mode-S AC486A.

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 20 distinct

Callsign Airline Flights Last seen
SWA4329 Southwest Airlines 6 2026-07-24
SWA3658 Southwest Airlines 5 2026-05-11
SWA1708 Southwest Airlines 5 2026-05-11
SWA997 Southwest Airlines 4 2026-06-03
SWA4837 Southwest Airlines 4 2026-07-24
SWA4553 Southwest Airlines 4 2026-06-02
SWA3996 Southwest Airlines 4 2026-04-16
SWA3494 Southwest Airlines 4 2026-06-03
SWA2839 Southwest Airlines 4 2026-04-28
SWA2541 Southwest Airlines 4 2026-05-14
SWA1931 Southwest Airlines 4 2026-05-24
SWA1338 Southwest Airlines 4 2026-07-24
SWA1295 Southwest Airlines 4 2026-05-10
SWA1150 - 4 2026-04-13
SWA102 Southwest Airlines 4 2026-06-01
SWA711 Southwest Airlines 3 2026-07-25
SWA699 - 3 2026-06-25
SWA55 Southwest Airlines 3 2026-04-17
SWA4817 - 3 2026-07-16
SWA4812 Southwest Airlines 3 2026-07-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA4287 FLL → SJU Jul 26, 20:45 UTCJul 26, 22:30 UTC1h 45m
2026-07-26 SWA114 LAS → SAN Jul 26, 17:10 UTCJul 26, 19:25 UTC2h 15m
2026-07-26 SWA114 LAS → SAN Jul 26, 17:08 UTCJul 26, 19:21 UTC2h 13m
2026-07-26 SWA114 LAS → SAN Jul 26, 13:35 UTCJul 26, 15:30 UTC1h 55m
2026-07-26 SWA1581 BWI → MCO Jul 26, 11:20 UTCJul 26, 12:15 UTC55m
2026-07-26 SWA237 PDX → SJC Jul 26, 03:56 UTCJul 26, 05:50 UTC1h 54m
2026-07-26 SWA237 PDX → SJC Jul 26, 04:00 UTCJul 26, 05:55 UTC1h 55m
2026-07-26 SWA247 PVD → MDW Jul 26, 00:05 UTCJul 26, 02:10 UTC2h 5m
2026-07-25 SWA1303 BNA → MSP Jul 25, 21:00 UTCJul 25, 22:50 UTC1h 50m
2026-07-25 SWA3479 BNA → BOS Jul 25, 18:15 UTCJul 25, 19:40 UTC1h 25m
2026-07-25 SWA3186 DCA → PVD Jul 25, 15:50 UTCJul 25, 17:10 UTC1h 20m
2026-07-25 SWA3186 DCA → PVD Jul 25, 13:10 UTCJul 25, 14:45 UTC1h 35m
2026-07-25 SWA3337 SJC → PDX Jul 25, 03:00 UTCJul 25, 04:20 UTC1h 20m
2026-07-25 SWA711 BNA → LGA Jul 25, 00:10 UTCJul 25, 01:55 UTC1h 45m
2026-07-25 SWA711 BNA → LGA Jul 25, 00:09 UTCJul 25, 01:55 UTC1h 47m
2026-07-24 SWA2737 BWI → MKE Jul 24, 20:05 UTCJul 24, 22:30 UTC2h 25m
2026-07-24 SWA2737 BWI → MKE Jul 24, 20:00 UTCJul 24, 23:06 UTC3h 6m
2026-07-24 SWA4837 SAN → ATL Jul 24, 17:20 UTCJul 24, 18:55 UTC1h 35m
2026-07-24 SWA4329 TPA → MDW Jul 24, 12:56 UTCJul 24, 15:34 UTC2h 38m
2026-07-24 SWA4329 TPA → MDW Jul 24, 13:00 UTCJul 24, 15:40 UTC2h 40m
2026-07-24 SWA2517 OAK → BUR Jul 24, 11:00 UTCJul 24, 11:40 UTC40m
2026-07-24 SWA1338 STL → LIT Jul 24, 03:20 UTCJul 24, 04:00 UTC40m
2026-07-24 SWA1338 STL → LIT Jul 24, 01:30 UTCJul 24, 02:15 UTC45m
2026-07-23 SWA3511 BNA → PHL Jul 23, 21:55 UTCJul 24, 00:30 UTC2h 35m
2026-07-23 SWA3511 BNA → PHL Jul 23, 21:55 UTCJul 24, 00:25 UTC2h 30m
2026-07-23 SWA333 BUR → SFO Jul 23, 18:10 UTCJul 23, 20:30 UTC2h 20m
2026-07-23 SWA333 BUR → SFO Jul 23, 18:09 UTCJul 23, 20:34 UTC2h 26m
2026-07-23 SWA866 PWM → BWI Jul 23, 13:55 UTCJul 23, 16:50 UTC2h 55m
2026-07-23 SWA3463 DAL → CMH Jul 23, 10:10 UTCJul 23, 12:15 UTC2h 5m
2026-07-23 SWA3463 DAL → CMH Jul 23, 10:09 UTCJul 23, 12:11 UTC2h 2m
2026-07-22 SWA4232 TPA → AUS Jul 22, 23:40 UTCJul 23, 02:00 UTC2h 20m
2026-07-22 SWA4232 TPA → AUS Jul 22, 23:39 UTCJul 23, 01:55 UTC2h 16m
2026-07-22 SWA4536 DAL → AUS Jul 22, 20:35 UTCJul 22, 21:45 UTC1h 10m
2026-07-22 SWA4536 DAL → AUS Jul 22, 20:34 UTCJul 22, 21:45 UTC1h 11m
2026-07-22 SWA781 BNA → TPA Jul 22, 18:35 UTCJul 22, 19:40 UTC1h 5m
2026-07-22 SWA893 HOU → LGA Jul 22, 16:55 UTCJul 22, 17:35 UTC40m
2026-07-22 SWA3235 BWI → MHT Jul 22, 12:50 UTCJul 22, 15:40 UTC2h 50m
2026-07-22 SWA1332 BUR → OAK Jul 22, 03:20 UTCJul 22, 05:25 UTC2h 5m
2026-07-21 SWA3085 PDX → DAL Jul 21, 22:55 UTCJul 22, 02:15 UTC3h 20m
2026-07-21 SWA3085 PDX → DAL Jul 21, 22:51 UTCJul 22, 02:10 UTC3h 19m
2026-07-21 SWA2532 PDX → OAK Jul 21, 19:40 UTCJul 21, 21:45 UTC2h 5m
2026-07-21 SWA2532 PDX → OAK Jul 21, 19:35 UTCJul 21, 21:38 UTC2h 3m
2026-07-21 SWA3587 DCA → ATL Jul 21, 16:30 UTCJul 21, 18:20 UTC1h 50m
2026-07-21 SWA663 MDW → OMA Jul 21, 13:30 UTCJul 21, 15:15 UTC1h 45m
2026-07-21 SWA4581 BNA → BOS Jul 21, 10:45 UTCJul 21, 12:00 UTC1h 15m
2026-07-21 SWA4581 BNA → BOS Jul 21, 10:45 UTCJul 21, 11:59 UTC1h 14m
2026-07-21 SWA2193 SNA → DEN Jul 21, 02:15 UTCJul 21, 04:25 UTC2h 10m
2026-07-20 SWA1599 SEA → OAK Jul 20, 23:15 UTCJul 21, 01:00 UTC1h 44m
2026-07-20 SWA1599 SEA → OAK Jul 20, 23:10 UTCJul 21, 00:49 UTC1h 39m
2026-07-20 SWA1599 SEA → OAK Jul 20, 21:00 UTCJul 20, 22:05 UTC1h 5m

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?
No active broadcast right now. Last signal was Jul 26, 22:30 UTC.
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 20 distinct callsigns, including SWA4329, SWA3658, SWA1708, SWA997, SWA4837.