Apparatus

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sensors Mode-S transponder

AC247A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8814K · BOEING 737 MAX 8 · operated by SOUTHWEST AIRLINES CO

Hex
AC247A
Octal
53022172
Decimal
11,281,530
Country
US
Tail
N8814K
Type
B38M
No current signal · last broadcast Jul 26, 22:30 UTC
Flights observed
731
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:30 UTC

Last known position

Most recent position reported by Mode-S AC247A.

Country allocation

The ICAO 24-bit address AC247A 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
SWA488 Southwest Airlines 5 2026-07-23
SWA366 Southwest Airlines 5 2026-04-15
SWA4326 - 4 2026-06-17
SWA4058 Southwest Airlines 4 2026-04-16
SWA3936 Southwest Airlines 4 2026-05-12
SWA3798 Southwest Airlines 4 2026-05-19
SWA3500 Southwest Airlines 4 2026-04-18
SWA1221 - 4 2026-07-12
SWA1162 Southwest Airlines 4 2026-06-27
SWA1059 Southwest Airlines 4 2026-07-18
SWA1049 - 4 2026-07-15
SWA1039 - 4 2026-07-11
SWA733 Southwest Airlines 3 2026-05-21
SWA659 - 3 2026-07-07
SWA4998 Southwest Airlines 3 2026-06-06
SWA4515 - 3 2026-04-13
SWA441 - 3 2026-06-17
SWA432 Southwest Airlines 3 2026-07-25
SWA3996 Southwest Airlines 3 2026-05-20
SWA3877 Southwest Airlines 3 2026-05-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA4910 BWI → SAN Jul 26, 20:50 UTCJul 26, 22:30 UTC1h 40m
2026-07-26 SWA3330 MDW → PHL Jul 26, 17:05 UTCJul 26, 19:30 UTC2h 25m
2026-07-26 SWA3330 MDW → PHL Jul 26, 13:55 UTCJul 26, 15:50 UTC1h 55m
2026-07-26 SWA3330 MDW → PHL Jul 26, 11:20 UTCJul 26, 12:40 UTC1h 20m
2026-07-26 SWA1388 DEN → PDX Jul 26, 01:20 UTCJul 26, 02:35 UTC1h 15m
2026-07-26 SWA1388 DEN → PDX Jul 26, 01:19 UTCJul 26, 02:38 UTC1h 19m
2026-07-25 SWA1388 DEN → PDX Jul 25, 22:35 UTCJul 26, 00:05 UTC1h 30m
2026-07-25 SWA432 MCI → DAL Jul 25, 18:25 UTCJul 25, 20:45 UTC2h 20m
2026-07-25 SWA432 MCI → DAL Jul 25, 18:19 UTCJul 25, 20:38 UTC2h 19m
2026-07-25 SWA432 MCI → DAL Jul 25, 15:40 UTCJul 25, 17:05 UTC1h 25m
2026-07-25 SWA1278 AUS → SJC Jul 25, 12:05 UTCJul 25, 14:15 UTC2h 10m
2026-07-25 SWA1289 TPA → MSY Jul 25, 01:45 UTCJul 25, 03:40 UTC1h 55m
2026-07-25 SWA1289 TPA → MSY Jul 25, 01:41 UTCJul 25, 03:35 UTC1h 54m
2026-07-24 SWA1403 MDW → RDU Jul 24, 22:10 UTCJul 25, 00:40 UTC2h 30m
2026-07-24 SWA281 SNA → OAK Jul 24, 17:50 UTCJul 24, 20:40 UTC2h 50m
2026-07-24 SWA281 SNA → OAK Jul 24, 13:55 UTCJul 24, 16:25 UTC2h 30m
2026-07-24 SWA2072 ORD → DEN Jul 24, 02:30 UTCJul 24, 05:10 UTC2h 40m
2026-07-23 SWA2526 LAX → SJC Jul 23, 23:20 UTCJul 24, 00:30 UTC1h 10m
2026-07-23 SWA488 DCA → PVD Jul 23, 21:40 UTCJul 23, 22:25 UTC45m
2026-07-23 SWA488 DCA → PVD Jul 23, 19:20 UTCJul 23, 20:45 UTC1h 25m
2026-07-23 SWA1955 MDW → STL Jul 23, 16:15 UTCJul 23, 17:45 UTC1h 30m
2026-07-22 SWA3988 LAS → IND Jul 22, 23:05 UTCJul 23, 00:25 UTC1h 20m
2026-07-22 SWA3988 LAS → IND Jul 22, 23:02 UTCJul 23, 00:21 UTC1h 19m
2026-07-22 SWA4108 RSW → STL Jul 22, 20:45 UTCJul 22, 21:55 UTC1h 10m
2026-07-22 SWA1543 ONT → OAK Jul 22, 17:10 UTCJul 22, 19:10 UTC2h 0m
2026-07-22 SWA1971 SEA → OAK Jul 22, 13:35 UTCJul 22, 15:30 UTC1h 55m
2026-07-22 SWA2927 MDW → AUS Jul 22, 10:20 UTCJul 22, 12:05 UTC1h 45m
2026-07-22 SWA197 - Jul 22, 01:00 UTCJul 22, 03:15 UTC2h 15m
2026-07-21 SWA3531 - Jul 21, 21:30 UTCJul 21, 23:50 UTC2h 20m
2026-07-21 SWA3531 PHX → HOU Jul 21, 21:29 UTCJul 21, 23:49 UTC2h 21m
2026-07-21 SWA426 LGB → OAK Jul 21, 18:00 UTCJul 21, 18:30 UTC30m
2026-07-21 SWA426 LGB → OAK Jul 21, 17:59 UTCJul 21, 20:20 UTC2h 21m
2026-07-21 SWA1377 ORD → PHX Jul 21, 13:40 UTCJul 21, 16:55 UTC3h 15m
2026-07-21 SWA2661 SNA → AUS Jul 21, 10:20 UTCJul 21, 12:05 UTC1h 45m
2026-07-21 SWA3766 RDU → MDW Jul 21, 04:45 UTCJul 21, 06:25 UTC1h 40m
2026-07-21 SWA3766 RDU → MDW Jul 21, 04:44 UTCJul 21, 06:27 UTC1h 43m
2026-07-21 SWA183 OAK → LAS Jul 21, 02:40 UTCJul 21, 03:45 UTC1h 5m
2026-07-20 SWA183 OAK → LAS Jul 20, 20:30 UTCJul 20, 21:55 UTC1h 25m
2026-07-20 SWA651 AUS → OAK Jul 20, 17:15 UTCJul 20, 19:20 UTC2h 5m
2026-07-20 SWA651 AUS → OAK Jul 20, 17:11 UTCJul 20, 19:23 UTC2h 12m
2026-07-20 SWA4319 HRL → DAL Jul 20, 13:35 UTCJul 20, 15:30 UTC1h 55m
2026-07-20 SWA1791 - Jul 20, 11:40 UTCJul 20, 12:40 UTC1h 0m
2026-07-20 SWA586 OAK → ONT Jul 20, 07:10 UTCJul 20, 07:45 UTC35m
2026-07-20 SWA586 OAK → ONT Jul 20, 07:09 UTCJul 20, 08:00 UTC51m
2026-07-20 SWA1525 - Jul 20, 05:00 UTCJul 20, 06:00 UTC1h 0m
2026-07-20 SWA2217 SJC → LAX Jul 20, 01:50 UTCJul 20, 03:40 UTC1h 50m
2026-07-19 SWA3641 SJC → LAX Jul 19, 22:20 UTCJul 20, 00:25 UTC2h 5m
2026-07-19 SWA3641 SJC → LAX Jul 19, 22:15 UTCJul 20, 00:18 UTC2h 3m
2026-07-19 SWA103 PHL → MDW Jul 19, 19:45 UTCJul 19, 20:50 UTC1h 5m
2026-07-19 SWA1285 MEM → ATL Jul 19, 17:15 UTCJul 19, 18:15 UTC1h 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 N8814K page for operator, model, and routing details .

Mode-S AC247A frequently asked

What is Mode-S code AC247A?
AC247A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8814K.
Where is Mode-S AC247A registered?
Mode-S code AC247A 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 AC247A 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 AC247A, octal 53022172, decimal 11,281,530.
What flights does AC247A operate?
Mode-S AC247A has broadcast 20 distinct callsigns, including SWA488, SWA366, SWA4326, SWA4058, SWA3936.