Apparatus

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sensors Mode-S transponder

AC4F92

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8923Q · operated by SOUTHWEST AIRLINES CO

Hex
AC4F92
Octal
53047622
Decimal
11,292,562
Country
US
Tail
N8923Q
Type
B38M
No current signal · last broadcast Jul 26, 22:30 UTC
Flights observed
746
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:30 UTC

Last known position

Most recent position reported by Mode-S AC4F92.

Country allocation

The ICAO 24-bit address AC4F92 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
SWA3877 Southwest Airlines 8 2026-05-22
SWA451 Southwest Airlines 6 2026-04-21
SWA3610 Southwest Airlines 6 2026-05-16
SWA556 - 5 2026-04-13
SWA2321 Southwest Airlines 5 2026-05-27
SWA965 - 4 2026-06-22
SWA908 Southwest Airlines 4 2026-06-03
SWA899 - 4 2026-07-07
SWA843 Southwest Airlines 4 2026-05-21
SWA776 Southwest Airlines 4 2026-06-09
SWA591 Southwest Airlines 4 2026-04-21
SWA4346 Southwest Airlines 4 2026-06-03
SWA3300 Southwest Airlines 4 2026-04-13
SWA3286 Southwest Airlines 4 2026-04-21
SWA3117 Southwest Airlines 4 2026-04-22
SWA2325 - 4 2026-06-26
SWA2189 Southwest Airlines 4 2026-05-15
SWA1695 Southwest Airlines 4 2026-07-18
SWA1390 - 4 2026-06-15
SWA1322 - 4 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA2793 HOU → LGA Jul 26, 19:25 UTCJul 26, 22:30 UTC3h 5m
2026-07-26 SWA650 BWI → AUS Jul 26, 17:20 UTCJul 26, 18:20 UTC1h 0m
2026-07-26 SWA650 BWI → AUS Jul 26, 14:20 UTCJul 26, 16:15 UTC1h 55m
2026-07-26 SWA2524 PSP → DEN Jul 26, 12:00 UTCJul 26, 13:20 UTC1h 20m
2026-07-26 SWA2524 PSP → DEN Jul 26, 12:01 UTCJul 26, 13:21 UTC1h 20m
2026-07-26 SWA775 AUS → OAK Jul 26, 01:55 UTCJul 26, 03:55 UTC2h 0m
2026-07-25 SWA1999 PUJ → MDW Jul 25, 21:15 UTCJul 25, 23:40 UTC2h 25m
2026-07-25 SWA1074 - Jul 25, 14:15 UTCJul 25, 17:40 UTC3h 25m
2026-07-25 SWA1074 HOU → PUJ Jul 25, 14:13 UTCJul 25, 18:06 UTC3h 53m
2026-07-25 SWA1628 HOU → LGB Jul 25, 11:35 UTCJul 25, 12:15 UTC40m
2026-07-24 SWA8700 SJC → PHX Jul 24, 12:30 UTCJul 24, 13:15 UTC45m
2026-07-23 SWA1848 BWI → MHT Jul 23, 13:40 UTCJul 23, 16:00 UTC2h 20m
2026-07-23 SWA1848 BWI → MHT Jul 23, 13:39 UTCJul 23, 15:59 UTC2h 20m
2026-07-23 SWA426 LGB → OAK Jul 23, 10:10 UTCJul 23, 12:15 UTC2h 5m
2026-07-23 SWA4157 DEN → PIT Jul 23, 02:25 UTCJul 23, 03:20 UTC55m
2026-07-23 SWA4157 DEN → PIT Jul 23, 02:21 UTCJul 23, 03:17 UTC56m
2026-07-22 SWA905 MBJ → BWI Jul 22, 21:05 UTCJul 23, 00:05 UTC3h 1m
2026-07-22 SWA905 MBJ → BWI Jul 22, 17:05 UTCJul 23, 00:20 UTC7h 15m
2026-07-22 SWA2458 - Jul 22, 14:15 UTCJul 22, 15:05 UTC50m
2026-07-22 SWA857 LAS → OAK Jul 22, 12:00 UTCJul 22, 12:45 UTC45m
2026-07-22 SWA857 LAS → OAK Jul 22, 11:57 UTCJul 22, 12:44 UTC47m
2026-07-21 SWA2785 PDX → DEN Jul 21, 22:10 UTCJul 22, 00:05 UTC1h 55m
2026-07-21 SWA2785 PDX → DEN Jul 21, 22:06 UTCJul 22, 00:05 UTC2h 0m
2026-07-21 SWA5075 BNA → MDW Jul 21, 19:50 UTCJul 21, 21:00 UTC1h 10m
2026-07-21 SWA5075 BNA → MDW Jul 21, 19:46 UTCJul 21, 20:58 UTC1h 12m
2026-07-21 SWA5074 DAL → BNA Jul 21, 16:25 UTCJul 21, 17:55 UTC1h 30m
2026-07-21 SWA167 DEN → ATL Jul 21, 13:10 UTCJul 21, 15:15 UTC2h 5m
2026-07-21 SWA4580 DCA → MCO Jul 21, 10:20 UTCJul 21, 12:00 UTC1h 40m
2026-07-21 SWA4580 DCA → MCO Jul 21, 10:20 UTCJul 21, 11:57 UTC1h 37m
2026-07-21 SWA2627 SNA → SLC Jul 21, 02:15 UTCJul 21, 04:05 UTC1h 50m
2026-07-21 SWA2627 SNA → SLC Jul 21, 01:50 UTCJul 21, 02:10 UTC20m
2026-07-20 SWA2877 LAS → SJC Jul 20, 21:50 UTCJul 21, 00:15 UTC2h 24m
2026-07-20 SWA2877 LAS → SJC Jul 20, 19:05 UTCJul 20, 20:15 UTC1h 10m
2026-07-20 SWA3513 SAN → MDW Jul 20, 13:58 UTCJul 20, 17:46 UTC3h 48m
2026-07-20 SWA3513 - Jul 20, 14:00 UTCJul 20, 16:30 UTC2h 30m
2026-07-20 SWA1089 - Jul 20, 01:35 UTCJul 20, 06:00 UTC4h 25m
2026-07-20 SWA1089 BWI → SAN Jul 20, 01:30 UTCJul 20, 05:59 UTC4h 30m
2026-07-19 SWA2692 - Jul 19, 14:10 UTCJul 19, 23:05 UTC8h 55m
2026-07-19 SWA107 DAL → MDW Jul 19, 00:30 UTCJul 19, 02:20 UTC1h 50m
2026-07-18 SWA107 AUS → DAL Jul 18, 22:50 UTCJul 18, 23:25 UTC35m
2026-07-18 SWA1178 - Jul 18, 19:25 UTCJul 18, 21:40 UTC2h 15m
2026-07-18 SWA1185 - Jul 18, 16:45 UTCJul 18, 17:55 UTC1h 10m
2026-07-18 SWA1185 MYR → CMH Jul 18, 16:38 UTCJul 18, 17:49 UTC1h 11m
2026-07-18 SWA1695 ISP → BWI Jul 18, 13:55 UTCJul 18, 15:20 UTC1h 25m
2026-07-18 SWA1695 ISP → BWI Jul 18, 13:51 UTCJul 18, 15:29 UTC1h 38m
2026-07-18 SWA356 AUS → MDW Jul 18, 10:25 UTCJul 18, 12:30 UTC2h 5m
2026-07-18 SWA3569 - Jul 18, 02:40 UTCJul 18, 05:10 UTC2h 31m
2026-07-18 SWA3569 LAS → AUS Jul 18, 02:35 UTCJul 18, 05:06 UTC2h 31m
2026-07-17 SWA2797 - Jul 17, 22:29 UTCJul 18, 01:34 UTC3h 5m
2026-07-17 SWA4357 SJC → MDW Jul 17, 17:20 UTCJul 17, 21:05 UTC3h 45m

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 N8923Q page for operator, model, and routing details .

Mode-S AC4F92 frequently asked

What is Mode-S code AC4F92?
AC4F92 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8923Q.
Where is Mode-S AC4F92 registered?
Mode-S code AC4F92 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 AC4F92 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 AC4F92, octal 53047622, decimal 11,292,562.
What flights does AC4F92 operate?
Mode-S AC4F92 has broadcast 20 distinct callsigns, including SWA3877, SWA451, SWA3610, SWA556, SWA2321.