Apparatus

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sensors Mode-S transponder

AC98AC

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N910WN · BOEING 737-700 · operated by SOUTHWEST AIRLINES CO

Hex
AC98AC
Octal
53114254
Decimal
11,311,276
Country
US
Tail
N910WN
Type
B737
No current signal · last broadcast 2h ago
Flights observed
704
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S AC98AC.

Country allocation

The ICAO 24-bit address AC98AC 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
SWA1219 Southwest Airlines 7 2026-06-02
SWA1104 Southwest Airlines 7 2026-04-16
SWA3791 Southwest Airlines 6 2026-04-25
SWA1149 Southwest Airlines 6 2026-06-04
SWA556 Southwest Airlines 5 2026-06-12
SWA23 Southwest Airlines 5 2026-05-03
SWA1426 Southwest Airlines 5 2026-06-08
SWA586 - 4 2026-06-20
SWA4461 Southwest Airlines 4 2026-06-20
SWA3329 - 4 2026-07-04
SWA264 - 4 2026-07-02
SWA250 Southwest Airlines 4 2026-05-31
SWA2350 - 4 2026-06-27
SWA2330 Southwest Airlines 4 2026-05-10
SWA1375 Southwest Airlines 4 2026-05-01
SWA1297 - 4 2026-06-17
SWA1185 Southwest Airlines 4 2026-05-28
SWA1159 Southwest Airlines 4 2026-06-13
SWA914 Southwest Airlines 3 2026-06-06
SWA807 - 3 2026-04-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 SWA2439 - Jul 15, 04:45 UTCJul 15, 05:30 UTC45m
2026-07-15 SWA2102 - Jul 15, 02:25 UTCJul 15, 03:20 UTC55m
2026-07-14 SWA1230 SJC → PHX Jul 14, 20:35 UTCJul 14, 22:10 UTC1h 35m
2026-07-14 SWA835 BUR → SJC Jul 14, 18:30 UTCJul 14, 19:15 UTC45m
2026-07-14 SWA835 BUR → SJC Jul 14, 18:30 UTCJul 14, 19:17 UTC47m
2026-07-14 SWA3520 RHV → BUR Jul 14, 16:50 UTCJul 14, 17:40 UTC50m
2026-07-14 SWA3520 SJC → BUR Jul 14, 16:46 UTCJul 14, 17:36 UTC50m
2026-07-14 SWA522 LGB → SJC Jul 14, 15:00 UTCJul 14, 15:45 UTC45m
2026-07-14 SWA1037 - Jul 14, 00:35 UTCJul 14, 02:30 UTC1h 55m
2026-07-14 SWA1037 DEN → LGB Jul 14, 00:32 UTCJul 14, 02:26 UTC1h 54m
2026-07-13 SWA8511 COS → DEN Jul 13, 22:45 UTCJul 13, 23:15 UTC30m
2026-07-13 SWA3257 - Jul 13, 20:35 UTCJul 13, 22:05 UTC1h 30m
2026-07-13 SWA3257 DAL → COS Jul 13, 20:35 UTCJul 13, 22:07 UTC1h 32m
2026-07-13 SWA4466 - Jul 13, 17:30 UTCJul 13, 19:10 UTC1h 40m
2026-07-13 SWA4466 TPA → SDF Jul 13, 14:40 UTCJul 13, 16:20 UTC1h 40m
2026-07-13 SWA683 BNA → TPA Jul 13, 12:05 UTCJul 13, 13:25 UTC1h 20m
2026-07-13 SWA683 BNA → TPA Jul 13, 12:01 UTCJul 13, 13:22 UTC1h 21m
2026-07-13 SWA2191 LAS → BNA Jul 13, 07:01 UTCJul 13, 10:15 UTC3h 15m
2026-07-13 SWA3936 - Jul 13, 03:05 UTCJul 13, 05:55 UTC2h 50m
2026-07-13 SWA3936 STL → LAS Jul 13, 03:03 UTCJul 13, 05:51 UTC2h 48m
2026-07-13 SWA449 - Jul 13, 00:40 UTCJul 13, 02:20 UTC1h 40m
2026-07-13 SWA449 JAX → STL Jul 13, 00:35 UTCJul 13, 02:16 UTC1h 41m
2026-07-12 SWA464 - Jul 12, 21:30 UTCJul 12, 23:10 UTC1h 40m
2026-07-12 SWA464 BWI → JAX Jul 12, 21:29 UTCJul 12, 23:01 UTC1h 32m
2026-07-12 SWA2158 - Jul 12, 18:35 UTCJul 12, 20:25 UTC1h 50m
2026-07-12 SWA2158 JAX → BWI Jul 12, 18:33 UTCJul 12, 20:20 UTC1h 48m
2026-07-12 SWA1108 - Jul 12, 15:35 UTCJul 12, 17:35 UTC2h 0m
2026-07-12 SWA1108 AUS → JAX Jul 12, 15:35 UTCJul 12, 17:37 UTC2h 2m
2026-07-12 SWA4548 - Jul 12, 12:35 UTCJul 12, 14:25 UTC1h 50m
2026-07-12 SWA839 BUR → PHX Jul 12, 03:10 UTCJul 12, 04:20 UTC1h 10m
2026-07-12 SWA2230 OAK → BUR Jul 12, 01:45 UTCJul 12, 02:35 UTC50m
2026-07-11 SWA3305 PHX → OAK Jul 11, 23:20 UTCJul 12, 00:45 UTC1h 25m
2026-07-11 SWA3305 PHX → OAK Jul 11, 23:20 UTCJul 12, 00:45 UTC1h 25m
2026-07-11 SWA4766 - Jul 11, 20:45 UTCJul 11, 22:20 UTC1h 35m
2026-07-11 SWA287 BUR → OAK Jul 11, 18:55 UTCJul 11, 19:45 UTC50m
2026-07-11 SWA330 - Jul 11, 17:05 UTCJul 11, 18:05 UTC1h 0m
2026-07-11 SWA3848 - Jul 11, 15:05 UTCJul 11, 16:05 UTC1h 0m
2026-07-11 SWA3210 - Jul 11, 03:10 UTCJul 11, 04:10 UTC1h 0m
2026-07-11 SWA3210 PDX → SJC Jul 11, 00:55 UTCJul 11, 02:25 UTC1h 30m
2026-07-10 SWA2433 RHV → PDX Jul 10, 22:40 UTCJul 10, 23:55 UTC1h 15m
2026-07-10 SWA2433 - Jul 10, 20:45 UTCJul 10, 21:30 UTC45m
2026-07-10 SWA2433 - Jul 10, 15:40 UTCJul 10, 19:35 UTC3h 55m
2026-07-10 SWA4202 PHL → MDW Jul 10, 12:15 UTCJul 10, 14:00 UTC1h 45m
2026-07-10 SWA4263 PHL → PHL Jul 10, 03:40 UTCJul 10, 03:50 UTC10m
2026-07-10 SWA4263 - Jul 10, 02:05 UTCJul 10, 03:30 UTC1h 25m
2026-07-09 SWA961 - Jul 9, 22:50 UTCJul 9, 23:25 UTC35m
2026-07-09 SWA961 BWI → IND Jul 9, 20:05 UTCJul 9, 21:40 UTC1h 35m
2026-07-09 SWA477 - Jul 9, 17:45 UTCJul 9, 18:40 UTC55m
2026-07-09 SWA477 - Jul 9, 15:30 UTCJul 9, 16:20 UTC50m
2026-07-09 SWA2531 - Jul 9, 12:50 UTCJul 9, 14:05 UTC1h 15m

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 N910WN page for operator, model, and routing details .

Mode-S AC98AC frequently asked

What is Mode-S code AC98AC?
AC98AC is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N910WN.
Where is Mode-S AC98AC registered?
Mode-S code AC98AC 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 AC98AC broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC98AC, octal 53114254, decimal 11,311,276.
What flights does AC98AC operate?
Mode-S AC98AC has broadcast 20 distinct callsigns, including SWA1219, SWA1104, SWA3791, SWA1149, SWA556.