Apparatus

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sensors Mode-S transponder

AC5746

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8945Q · BOEING 737 MAX 8 · operated by SOUTHWEST AIRLINES CO

Hex
AC5746
Octal
53053506
Decimal
11,294,534
Country
US
Tail
N8945Q
Type
B38M
No current signal · last broadcast Jul 26, 21:30 UTC
Flights observed
772
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:30 UTC

Last known position

Most recent position reported by Mode-S AC5746.

Country allocation

The ICAO 24-bit address AC5746 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
SWA3900 Southwest Airlines 5 2026-05-18
SWA3214 Southwest Airlines 5 2026-05-09
SWA196 Southwest Airlines 5 2026-07-19
SWA1277 - 5 2026-07-06
SWA1181 - 5 2026-06-26
SWA982 Southwest Airlines 4 2026-04-22
SWA856 Southwest Airlines 4 2026-05-09
SWA630 Southwest Airlines 4 2026-06-09
SWA3200 - 4 2026-07-03
SWA2151 Southwest Airlines 4 2026-04-21
SWA1647 - 4 2026-07-06
SWA1355 - 4 2026-07-07
SWA1270 Southwest Airlines 4 2026-05-23
SWA1268 - 4 2026-07-05
SWA1121 Southwest Airlines 4 2026-06-04
SWA1118 - 4 2026-06-14
SWA978 Southwest Airlines 3 2026-04-14
SWA754 Southwest Airlines 3 2026-05-23
SWA694 Southwest Airlines 3 2026-05-27
SWA573 Southwest Airlines 3 2026-05-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA360 BOS → STL Jul 26, 21:25 UTCJul 26, 21:30 UTC5m
2026-07-26 SWA3475 SNA → OAK Jul 26, 17:15 UTCJul 26, 19:55 UTC2h 40m
2026-07-26 SWA1156 BWI → BDL Jul 26, 15:20 UTCJul 26, 16:10 UTC50m
2026-07-26 SWA3066 OAK → SAN Jul 26, 12:20 UTCJul 26, 13:50 UTC1h 30m
2026-07-26 SWA2490 OAK → PHX Jul 26, 03:05 UTCJul 26, 03:55 UTC50m
2026-07-25 SWA1336 CVG → BWI Jul 25, 23:45 UTCJul 26, 02:15 UTC2h 30m
2026-07-25 SWA1336 CVG → BWI Jul 25, 21:20 UTCJul 25, 22:35 UTC1h 15m
2026-07-25 SWA4917 CLT → DEN Jul 25, 17:30 UTCJul 25, 19:55 UTC2h 25m
2026-07-25 SWA4291 TUL → PHX Jul 25, 13:00 UTCJul 25, 16:20 UTC3h 20m
2026-07-25 SWA4291 TUL → PHX Jul 25, 12:59 UTCJul 25, 16:20 UTC3h 21m
2026-07-25 SWA2057 LGB → OAK Jul 25, 10:25 UTCJul 25, 11:45 UTC1h 20m
2026-07-25 SWA4794 IND → FLL Jul 25, 05:25 UTCJul 25, 06:05 UTC40m
2026-07-25 SWA4583 MCO → IND Jul 25, 01:30 UTCJul 25, 03:30 UTC2h 0m
2026-07-25 SWA4583 MCO → IND Jul 25, 01:25 UTCJul 25, 03:33 UTC2h 9m
2026-07-24 SWA4899 MCO → BNA Jul 24, 21:50 UTCJul 25, 00:15 UTC2h 25m
2026-07-24 SWA4899 MCO → BNA Jul 24, 21:45 UTCJul 25, 00:12 UTC2h 27m
2026-07-24 SWA4066 LGB → OAK Jul 24, 17:35 UTCJul 24, 20:35 UTC3h 0m
2026-07-24 SWA4410 SJC → LAS Jul 24, 14:10 UTCJul 24, 16:05 UTC1h 55m
2026-07-24 SWA1078 ABQ → OAK Jul 24, 11:20 UTCJul 24, 12:55 UTC1h 35m
2026-07-24 SWA1078 ABQ → OAK Jul 24, 11:18 UTCJul 24, 12:46 UTC1h 28m
2026-07-24 SWA4845 ATL → BWI Jul 24, 02:50 UTCJul 24, 04:55 UTC2h 5m
2026-07-24 SWA4845 ATL → BWI Jul 24, 02:50 UTCJul 24, 04:52 UTC2h 2m
2026-07-23 SWA4784 DEN → PHL Jul 23, 21:25 UTCJul 24, 01:50 UTC4h 25m
2026-07-23 SWA3216 RNO → OAK Jul 23, 18:25 UTCJul 23, 20:05 UTC1h 40m
2026-07-23 SWA3216 RNO → OAK Jul 23, 18:21 UTCJul 23, 20:00 UTC1h 39m
2026-07-23 SWA623 LGB → SJC Jul 23, 15:40 UTCJul 23, 17:10 UTC1h 30m
2026-07-23 SWA256 SFO → DEN Jul 23, 12:40 UTCJul 23, 14:25 UTC1h 45m
2026-07-23 SWA3425 SJC → LAX Jul 23, 02:50 UTCJul 23, 05:45 UTC2h 55m
2026-07-23 SWA3425 SJC → LAX Jul 23, 02:49 UTCJul 23, 05:42 UTC2h 53m
2026-07-22 SWA1610 CUN → BWI Jul 22, 21:05 UTCJul 23, 00:15 UTC3h 10m
2026-07-22 SWA1609 BWI → CUN Jul 22, 16:35 UTCJul 22, 19:30 UTC2h 55m
2026-07-22 SWA1609 BWI → CUN Jul 22, 16:33 UTCJul 22, 19:40 UTC3h 7m
2026-07-22 SWA2611 BUR → SJC Jul 22, 12:15 UTCJul 22, 14:05 UTC1h 50m
2026-07-22 SWA2611 BUR → SJC Jul 22, 12:10 UTCJul 22, 14:00 UTC1h 50m
2026-07-22 SWA1193 CMH → MCO Jul 22, 09:08 UTCJul 22, 11:11 UTC2h 3m
2026-07-22 SWA2451 LAS → DEN Jul 22, 02:05 UTCJul 22, 05:25 UTC3h 20m
2026-07-22 SWA2451 LAS → DEN Jul 22, 02:05 UTCJul 22, 05:25 UTC3h 20m
2026-07-21 SWA1315 SLC → SJC Jul 21, 23:10 UTCJul 22, 00:45 UTC1h 35m
2026-07-21 SWA1256 DAL → DEN Jul 21, 20:30 UTCJul 21, 22:00 UTC1h 30m
2026-07-21 SWA160 MCO → MSY Jul 21, 17:50 UTCJul 21, 19:15 UTC1h 25m
2026-07-21 SWA3228 - Jul 21, 16:05 UTCJul 21, 16:50 UTC45m
2026-07-21 SWA2581 MDW → PIT Jul 21, 03:25 UTCJul 21, 06:05 UTC2h 40m
2026-07-20 SWA3291 BNA → BOS Jul 20, 23:50 UTCJul 21, 02:10 UTC2h 20m
2026-07-20 SWA3291 BNA → BOS Jul 20, 23:50 UTCJul 21, 02:07 UTC2h 17m
2026-07-20 SWA1681 MHT → BWI Jul 20, 21:15 UTCJul 20, 22:40 UTC1h 25m
2026-07-20 SWA3262 PHX → DEN Jul 20, 18:15 UTCJul 20, 19:35 UTC1h 20m
2026-07-20 SWA3887 - Jul 20, 14:25 UTCJul 20, 15:15 UTC50m
2026-07-20 SWA215 PHX → SNA Jul 20, 04:23 UTCJul 20, 05:12 UTC49m
2026-07-20 SWA215 - Jul 20, 04:25 UTCJul 20, 05:15 UTC50m
2026-07-20 SWA4426 AUS → PHX Jul 20, 01:30 UTCJul 20, 03:30 UTC2h 0m

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 N8945Q page for operator, model, and routing details .

Mode-S AC5746 frequently asked

What is Mode-S code AC5746?
AC5746 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8945Q.
Where is Mode-S AC5746 registered?
Mode-S code AC5746 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 AC5746 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC5746, octal 53053506, decimal 11,294,534.
What flights does AC5746 operate?
Mode-S AC5746 has broadcast 20 distinct callsigns, including SWA3900, SWA3214, SWA196, SWA1277, SWA1181.