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
Broadcasting now · callsign SWA3356 · 37,000 ft
Flights observed
669
Distinct callsigns
20
Country
US
Last broadcast
3h ago

Current position

AC5746 is currently broadcasting. Map zoomed to live position.

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
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
SWA4927 - 3 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 SWA3356 - Jul 13, 23:35 UTCJul 14, 00:35 UTC1h 0m
2026-07-13 SWA4690 PHX → SNA Jul 13, 21:25 UTCJul 13, 22:15 UTC50m
2026-07-13 SWA4690 PHX → SNA Jul 13, 21:25 UTCJul 13, 22:14 UTC49m
2026-07-13 SWA4944 - Jul 13, 19:05 UTCJul 13, 20:05 UTC1h 0m
2026-07-13 SWA4944 SNA → PHX Jul 13, 19:04 UTCJul 13, 20:00 UTC56m
2026-07-13 SWA4927 OAK → SNA Jul 13, 16:15 UTCJul 13, 17:22 UTC1h 7m
2026-07-13 SWA4927 - Jul 13, 16:15 UTCJul 13, 17:30 UTC1h 15m
2026-07-13 SWA266 SEA → OAK Jul 13, 13:35 UTCJul 13, 15:30 UTC1h 55m
2026-07-13 SWA266 SEA → OAK Jul 13, 13:34 UTCJul 13, 15:24 UTC1h 50m
2026-07-13 SWA4196 LAS → SEA Jul 13, 07:30 UTCJul 13, 09:20 UTC1h 50m
2026-07-13 SWA2625 ATL → LAS Jul 13, 02:35 UTCJul 13, 06:06 UTC3h 32m
2026-07-13 SWA2625 ATL → LAS Jul 13, 02:35 UTCJul 13, 06:15 UTC3h 40m
2026-07-12 SWA4008 DAL → ATL Jul 12, 22:40 UTCJul 13, 00:55 UTC2h 15m
2026-07-12 SWA3595 SAV → DAL Jul 12, 19:14 UTCJul 12, 21:18 UTC2h 5m
2026-07-12 SWA3595 SAV → DAL Jul 12, 19:15 UTCJul 12, 21:25 UTC2h 10m
2026-07-12 SWA2025 - Jul 12, 16:10 UTCJul 12, 18:05 UTC1h 55m
2026-07-12 SWA4668 - Jul 12, 12:15 UTCJul 12, 14:25 UTC2h 10m
2026-07-12 SWA1048 PDX → PHX Jul 12, 04:15 UTCJul 12, 06:35 UTC2h 20m
2026-07-11 SWA2499 STL → PDX Jul 11, 23:40 UTCJul 12, 03:20 UTC3h 40m
2026-07-11 SWA3808 SAV → STL Jul 11, 20:54 UTCJul 11, 22:33 UTC1h 40m
2026-07-11 SWA3808 SAV → STL Jul 11, 20:55 UTCJul 11, 22:30 UTC1h 35m
2026-07-11 SWA2076 - Jul 11, 17:15 UTCJul 11, 19:05 UTC1h 50m
2026-07-11 SWA2076 HOU → SAV Jul 11, 17:11 UTCJul 11, 19:00 UTC1h 49m
2026-07-11 SWA3567 - Jul 11, 12:30 UTCJul 11, 15:50 UTC3h 20m
2026-07-11 SWA4121 - Jul 11, 04:35 UTCJul 11, 08:30 UTC3h 55m
2026-07-11 SWA1604 - Jul 11, 01:40 UTCJul 11, 03:30 UTC1h 50m
2026-07-10 SWA3043 OAK → DEN Jul 10, 21:05 UTCJul 10, 23:20 UTC2h 15m
2026-07-10 SWA3366 - Jul 10, 15:35 UTCJul 10, 19:35 UTC4h 0m
2026-07-10 SWA745 BOS → MDW Jul 10, 11:55 UTCJul 10, 14:10 UTC2h 15m
2026-07-09 SWA4930 - Jul 9, 23:00 UTCJul 10, 03:50 UTC4h 50m
2026-07-09 SWA3754 - Jul 9, 19:10 UTCJul 9, 20:40 UTC1h 30m
2026-07-09 SWA3754 SLC → SAN Jul 9, 19:06 UTCJul 9, 20:34 UTC1h 29m
2026-07-09 SWA4198 - Jul 9, 16:45 UTCJul 9, 18:05 UTC1h 20m
2026-07-09 SWA4198 OAK → SLC Jul 9, 16:43 UTCJul 9, 17:58 UTC1h 15m
2026-07-09 SWA4198 - Jul 9, 14:40 UTCJul 9, 15:45 UTC1h 5m
2026-07-09 SWA2331 - Jul 9, 05:20 UTCJul 9, 06:00 UTC40m
2026-07-09 SWA2331 LAS → SAN Jul 9, 05:18 UTCJul 9, 05:59 UTC41m
2026-07-09 SWA210 ATL → LAS Jul 9, 00:30 UTCJul 9, 04:00 UTC3h 30m
2026-07-08 SWA251 MDW → ATL Jul 8, 21:50 UTCJul 8, 23:10 UTC1h 20m
2026-07-08 SWA2163 ATL → MDW Jul 8, 18:45 UTCJul 8, 20:10 UTC1h 25m
2026-07-08 SWA1947 - Jul 8, 15:45 UTCJul 8, 17:20 UTC1h 35m
2026-07-08 SWA4497 - Jul 8, 12:20 UTCJul 8, 14:25 UTC2h 5m
2026-07-08 SWA2521 PHX → MDW Jul 8, 03:00 UTCJul 8, 06:05 UTC3h 5m
2026-07-07 SWA1355 - Jul 7, 23:55 UTCJul 8, 01:50 UTC1h 55m
2026-07-07 SWA1355 - Jul 7, 20:05 UTCJul 7, 23:00 UTC2h 55m
2026-07-07 SWA1355 - Jul 7, 16:25 UTCJul 7, 18:35 UTC2h 10m
2026-07-07 SWA1355 - Jul 7, 13:25 UTCJul 7, 15:00 UTC1h 35m
2026-07-07 SWA4167 - Jul 7, 10:20 UTCJul 7, 12:00 UTC1h 40m
2026-07-07 SWA4561 - Jul 7, 00:35 UTCJul 7, 01:40 UTC1h 5m
2026-07-07 SWA4561 BNA → CHS Jul 7, 00:35 UTCJul 7, 01:36 UTC1h 1m

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?
Yes. Mode-S AC5746 is currently airborne.
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, SWA1277, SWA1181, SWA982.