Apparatus

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sensors Mode-S transponder

AC536C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8934Q · BOEING 737-800 · operated by SOUTHWEST AIRLINES CO

Hex
AC536C
Octal
53051554
Decimal
11,293,548
Country
US
Tail
N8934Q
Type
B738
No current signal · last broadcast Jul 26, 22:05 UTC
Flights observed
767
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:05 UTC

Last known position

Most recent position reported by Mode-S AC536C.

Country allocation

The ICAO 24-bit address AC536C 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
SWA3716 Southwest Airlines 5 2026-06-22
SWA2104 Southwest Airlines 5 2026-07-25
SWA608 Southwest Airlines 4 2026-04-18
SWA3796 Southwest Airlines 4 2026-06-13
SWA3794 - 4 2026-06-22
SWA3780 Southwest Airlines 4 2026-04-15
SWA3470 Southwest Airlines 4 2026-05-09
SWA3240 - 4 2026-07-11
SWA2950 - 4 2026-04-17
SWA2909 Southwest Airlines 4 2026-06-04
SWA2592 - 4 2026-07-06
SWA1445 - 4 2026-07-13
SWA1010 Southwest Airlines 4 2026-06-11
SWA623 - 3 2026-06-30
SWA5047 Southwest Airlines 3 2026-07-02
SWA500 Southwest Airlines 3 2026-05-04
SWA4877 Southwest Airlines 3 2026-06-25
SWA4598 Southwest Airlines 3 2026-07-23
SWA4203 Southwest Airlines 3 2026-05-12
SWA4075 Southwest Airlines 3 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA2878 PHL → MCO Jul 26, 19:40 UTCJul 26, 21:55 UTC2h 15m
2026-07-26 SWA2464 STL → PHL Jul 26, 14:35 UTCJul 26, 17:05 UTC2h 30m
2026-07-26 SWA2464 STL → PHL Jul 26, 10:55 UTCJul 26, 12:55 UTC2h 0m
2026-07-26 SWA2987 MDW → LGA Jul 26, 00:45 UTCJul 26, 01:45 UTC1h 0m
2026-07-25 SWA3414 MDW → LAS Jul 25, 22:05 UTCJul 25, 23:25 UTC1h 20m
2026-07-25 SWA1467 RNO → OAK Jul 25, 18:25 UTCJul 25, 20:05 UTC1h 40m
2026-07-25 SWA1467 RNO → OAK Jul 25, 18:20 UTCJul 25, 20:04 UTC1h 44m
2026-07-25 SWA4398 SNA → OAK Jul 25, 13:25 UTCJul 25, 16:55 UTC3h 30m
2026-07-25 SWA4398 SNA → OAK Jul 25, 13:20 UTCJul 25, 16:47 UTC3h 27m
2026-07-25 SWA65 DAL → HOU Jul 25, 04:05 UTCJul 25, 06:35 UTC2h 30m
2026-07-25 SWA65 DAL → HOU Jul 25, 04:05 UTCJul 25, 06:29 UTC2h 25m
2026-07-25 SWA2104 STL → LGA Jul 25, 00:00 UTCJul 25, 02:50 UTC2h 50m
2026-07-24 SWA2104 STL → LGA Jul 24, 23:55 UTCJul 25, 02:46 UTC2h 51m
2026-07-24 SWA2104 STL → LGA Jul 24, 22:10 UTCJul 24, 23:00 UTC50m
2026-07-24 SWA2104 STL → LGA Jul 24, 17:55 UTCJul 24, 20:15 UTC2h 20m
2026-07-24 SWA2104 STL → LGA Jul 24, 15:25 UTCJul 24, 16:55 UTC1h 30m
2026-07-24 SWA1197 SJC → OGG Jul 24, 13:15 UTCJul 24, 14:05 UTC50m
2026-07-24 SWA2616 SJC → LAS Jul 24, 10:25 UTCJul 24, 12:10 UTC1h 45m
2026-07-23 SWA4720 CHS → MDW Jul 23, 21:35 UTCJul 23, 23:55 UTC2h 20m
2026-07-23 SWA4860 SMF → AUS Jul 23, 18:20 UTCJul 23, 20:25 UTC2h 5m
2026-07-23 SWA4860 SMF → AUS Jul 23, 18:19 UTCJul 23, 20:16 UTC1h 57m
2026-07-23 SWA541 SJC → OGG Jul 23, 16:00 UTCJul 23, 17:10 UTC1h 10m
2026-07-23 SWA4598 DEN → SJC Jul 23, 14:10 UTCJul 23, 14:15 UTC5m
2026-07-23 SWA4598 DEN → SJC Jul 23, 12:55 UTCJul 23, 14:15 UTC1h 20m
2026-07-23 SWA4598 DEN → SJC Jul 23, 12:51 UTCJul 23, 13:55 UTC1h 4m
2026-07-23 SWA2279 AUS → MDW Jul 23, 00:20 UTCJul 23, 03:20 UTC3h 0m
2026-07-22 SWA4461 LAX → SFO Jul 22, 22:15 UTCJul 22, 23:05 UTC50m
2026-07-22 SWA4461 LAX → SFO Jul 22, 19:15 UTCJul 22, 21:00 UTC1h 45m
2026-07-22 SWA3261 DAL → ORD Jul 22, 16:40 UTCJul 22, 18:05 UTC1h 25m
2026-07-22 SWA3261 DAL → ORD Jul 22, 16:39 UTCJul 22, 17:58 UTC1h 20m
2026-07-22 SWA3261 DAL → ORD Jul 22, 14:20 UTCJul 22, 15:15 UTC55m
2026-07-22 SWA3837 AUS → MCI Jul 22, 02:50 UTCJul 22, 03:55 UTC1h 5m
2026-07-22 SWA4897 ORD → DAL Jul 22, 00:40 UTCJul 22, 01:40 UTC1h 0m
2026-07-21 SWA4413 BOI → DEN Jul 21, 20:00 UTCJul 21, 23:45 UTC3h 45m
2026-07-21 SWA1813 - Jul 21, 16:30 UTCJul 21, 18:45 UTC2h 15m
2026-07-21 SWA4481 SAN → BWI Jul 21, 13:35 UTCJul 21, 14:40 UTC1h 5m
2026-07-21 SWA4430 - Jul 21, 10:35 UTCJul 21, 12:15 UTC1h 40m
2026-07-21 SWA4694 DAL → PHX Jul 21, 01:50 UTCJul 21, 02:50 UTC1h 0m
2026-07-20 SWA4075 MCI → DEN Jul 20, 23:55 UTCJul 21, 00:45 UTC50m
2026-07-20 SWA4075 MCI → DEN Jul 20, 23:54 UTCJul 21, 00:44 UTC50m
2026-07-20 SWA4075 MCI → DEN Jul 20, 22:00 UTCJul 20, 23:05 UTC1h 5m
2026-07-20 SWA4369 - Jul 20, 18:55 UTCJul 20, 20:55 UTC2h 0m
2026-07-20 SWA4423 TPA → PVD Jul 20, 16:00 UTCJul 20, 17:30 UTC1h 30m
2026-07-20 SWA1106 SAN → SJC Jul 20, 12:20 UTCJul 20, 14:20 UTC2h 0m
2026-07-20 SWA1891 SFO → BUR Jul 20, 09:50 UTCJul 20, 11:05 UTC1h 15m
2026-07-20 SWA4373 - Jul 20, 02:55 UTCJul 20, 04:25 UTC1h 30m
2026-07-20 SWA4373 BWI → GRR Jul 20, 02:53 UTCJul 20, 04:16 UTC1h 23m
2026-07-20 SWA1144 - Jul 20, 00:50 UTCJul 20, 01:55 UTC1h 5m
2026-07-19 SWA1870 - Jul 19, 22:15 UTCJul 19, 23:35 UTC1h 20m
2026-07-19 SWA907 MBJ → BWI Jul 19, 17:01 UTCJul 19, 19:55 UTC2h 55m

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 N8934Q page for operator, model, and routing details .

Mode-S AC536C frequently asked

What is Mode-S code AC536C?
AC536C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8934Q.
Where is Mode-S AC536C registered?
Mode-S code AC536C 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 AC536C broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC536C, octal 53051554, decimal 11,293,548.
What flights does AC536C operate?
Mode-S AC536C has broadcast 20 distinct callsigns, including SWA3716, SWA2104, SWA608, SWA3796, SWA3794.