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sensors Mode-S transponder

AC245C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8813Q · BOEING 737 MAX 8 · operated by SOUTHWEST AIRLINES CO

Hex
AC245C
Octal
53022134
Decimal
11,281,500
Country
US
Tail
N8813Q
Type
B38M
No current signal · last broadcast 1h ago
Flights observed
659
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S AC245C.

Country allocation

The ICAO 24-bit address AC245C 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
SWA3080 - 5 2026-07-12
SWA107 Southwest Airlines 5 2026-05-09
SWA677 Southwest Airlines 4 2026-04-17
SWA512 Southwest Airlines 4 2026-05-07
SWA471 Southwest Airlines 4 2026-04-16
SWA3503 - 4 2026-06-30
SWA2419 Southwest Airlines 4 2026-05-14
SWA2380 - 4 2026-07-12
SWA2189 Southwest Airlines 4 2026-04-13
SWA2157 Southwest Airlines 4 2026-05-25
SWA209 - 4 2026-07-10
SWA1578 Southwest Airlines 4 2026-05-08
SWA1249 - 4 2026-07-03
SWA4791 - 3 2026-07-12
SWA4136 Southwest Airlines 3 2026-06-05
SWA3722 - 3 2026-06-19
SWA3315 Southwest Airlines 3 2026-05-08
SWA3295 Southwest Airlines 3 2026-05-07
SWA296 Southwest Airlines 3 2026-05-27
SWA2835 Southwest Airlines 3 2026-04-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SWA4470 - Jul 14, 15:10 UTCJul 14, 17:00 UTC1h 50m
2026-07-14 SWA3070 - Jul 14, 05:15 UTCJul 14, 06:50 UTC1h 35m
2026-07-14 SWA3070 - Jul 14, 01:55 UTCJul 14, 02:50 UTC55m
2026-07-13 SWA901 AUS → SNA Jul 13, 22:28 UTCJul 14, 00:59 UTC2h 31m
2026-07-13 SWA901 - Jul 13, 22:30 UTCJul 14, 01:00 UTC2h 30m
2026-07-13 SWA867 - Jul 13, 18:15 UTCJul 13, 21:00 UTC2h 45m
2026-07-13 SWA193 - Jul 13, 15:10 UTCJul 13, 16:55 UTC1h 45m
2026-07-13 SWA565 BNA → MCO Jul 13, 12:00 UTCJul 13, 13:25 UTC1h 25m
2026-07-13 SWA565 BNA → MCO Jul 13, 11:57 UTCJul 13, 13:24 UTC1h 27m
2026-07-13 SWA3480 - Jul 13, 06:05 UTCJul 13, 09:40 UTC3h 35m
2026-07-13 SWA4513 SJC → SAN Jul 13, 03:30 UTCJul 13, 04:40 UTC1h 10m
2026-07-13 SWA3084 SLC → SJC Jul 13, 01:05 UTCJul 13, 02:30 UTC1h 25m
2026-07-12 SWA4791 BNA → SLC Jul 12, 20:35 UTCJul 12, 23:25 UTC2h 50m
2026-07-12 SWA1095 BZN → BNA Jul 12, 16:15 UTCJul 12, 19:03 UTC2h 48m
2026-07-12 SWA1095 DEN → BNA Jul 12, 13:55 UTCJul 12, 19:10 UTC5h 15m
2026-07-12 SWA282 AUS → DEN Jul 12, 10:45 UTCJul 12, 12:30 UTC1h 45m
2026-07-12 SWA2380 - Jul 12, 02:45 UTCJul 12, 05:25 UTC2h 40m
2026-07-12 SWA2380 LAX → AUS Jul 12, 02:43 UTCJul 12, 05:23 UTC2h 40m
2026-07-12 SWA3080 - Jul 12, 00:50 UTCJul 12, 01:35 UTC45m
2026-07-12 SWA3080 LAS → LAX Jul 12, 00:50 UTCJul 12, 01:31 UTC41m
2026-07-11 SWA3080 - Jul 11, 19:50 UTCJul 11, 23:05 UTC3h 15m
2026-07-11 SWA2001 DEN → GRR Jul 11, 16:26 UTCJul 11, 18:27 UTC2h 1m
2026-07-11 SWA2001 DEN → GRR Jul 11, 16:30 UTCJul 11, 18:30 UTC2h 0m
2026-07-11 SWA2628 MCO → DEN Jul 11, 11:05 UTCJul 11, 14:25 UTC3h 20m
2026-07-11 SWA2628 MCO → DEN Jul 11, 11:02 UTCJul 11, 14:16 UTC3h 14m
2026-07-11 SWA1495 - Jul 11, 00:00 UTCJul 11, 00:10 UTC10m
2026-07-10 SWA1495 - Jul 10, 20:40 UTCJul 11, 00:10 UTC3h 30m
2026-07-10 SWA1495 DEN → MCO Jul 10, 20:36 UTCJul 10, 23:41 UTC3h 5m
2026-07-10 SWA3262 PHX → DEN Jul 10, 18:10 UTCJul 10, 19:30 UTC1h 20m
2026-07-10 SWA209 LAS → PHX Jul 10, 15:40 UTCJul 10, 16:25 UTC45m
2026-07-10 SWA209 ATL → LAS Jul 10, 10:30 UTCJul 10, 14:00 UTC3h 30m
2026-07-10 SWA1472 DEN → ATL Jul 10, 03:35 UTCJul 10, 06:10 UTC2h 35m
2026-07-09 SWA3617 SEA → DEN Jul 9, 23:45 UTCJul 10, 02:00 UTC2h 15m
2026-07-09 SWA3981 - Jul 9, 17:10 UTCJul 9, 21:00 UTC3h 50m
2026-07-09 SWA1411 - Jul 9, 14:30 UTCJul 9, 15:50 UTC1h 20m
2026-07-09 SWA2341 LGA → DAL Jul 9, 10:20 UTCJul 9, 13:20 UTC3h 0m
2026-07-09 SWA2341 LGA → DAL Jul 9, 10:20 UTCJul 9, 13:14 UTC2h 54m
2026-07-09 SWA2144 - Jul 9, 02:20 UTCJul 9, 04:05 UTC1h 45m
2026-07-08 SWA4395 - Jul 8, 20:45 UTCJul 9, 00:45 UTC4h 0m
2026-07-08 SWA4133 - Jul 8, 18:35 UTCJul 8, 19:30 UTC55m
2026-07-08 SWA146 - Jul 8, 15:55 UTCJul 8, 17:15 UTC1h 20m
2026-07-08 SWA146 - Jul 8, 11:25 UTCJul 8, 14:30 UTC3h 5m
2026-07-08 SWA2279 LAS → MKE Jul 8, 00:20 UTCJul 8, 03:25 UTC3h 5m
2026-07-07 SWA4461 - Jul 7, 22:35 UTCJul 7, 23:20 UTC45m
2026-07-07 SWA4461 - Jul 7, 19:30 UTCJul 7, 21:20 UTC1h 50m
2026-07-07 SWA3693 PDX → DEN Jul 7, 16:05 UTCJul 7, 18:10 UTC2h 5m
2026-07-07 SWA3693 SJC → PDX Jul 7, 13:15 UTCJul 7, 14:30 UTC1h 15m
2026-07-07 SWA660 LAS → SJC Jul 7, 06:20 UTCJul 7, 07:20 UTC1h 0m
2026-07-07 SWA660 TPA → LAS Jul 7, 01:10 UTCJul 7, 05:10 UTC4h 0m
2026-07-06 SWA588 - Jul 6, 20:30 UTCJul 6, 22:50 UTC2h 20m

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 N8813Q page for operator, model, and routing details .

Mode-S AC245C frequently asked

What is Mode-S code AC245C?
AC245C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8813Q.
Where is Mode-S AC245C registered?
Mode-S code AC245C 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 AC245C broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC245C, octal 53022134, decimal 11,281,500.
What flights does AC245C operate?
Mode-S AC245C has broadcast 20 distinct callsigns, including SWA3080, SWA107, SWA677, SWA512, SWA471.