Apparatus

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sensors Mode-S transponder

A2195D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N234WN · BOEING 737-700 · operated by SOUTHWEST AIRLINES CO

Hex
A2195D
Octal
50414535
Decimal
10,623,325
Country
US
Tail
N234WN
Type
B737
No current signal · last broadcast 2h ago
Flights observed
694
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S A2195D.

Country allocation

The ICAO 24-bit address A2195D 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
SWA599 - 7 2026-07-14
SWA1683 Southwest Airlines 7 2026-05-06
SWA826 Southwest Airlines 6 2026-06-03
SWA37 Southwest Airlines 6 2026-05-23
SWA3091 Southwest Airlines 6 2026-05-10
SWA600 - 5 2026-07-14
SWA3890 Southwest Airlines 5 2026-04-15
SWA1276 Southwest Airlines 5 2026-06-10
SWA1198 Southwest Airlines 5 2026-05-20
SWA1057 - 5 2026-07-06
SWA4693 Southwest Airlines 4 2026-04-13
SWA4433 - 4 2026-06-17
SWA4355 Southwest Airlines 4 2026-06-15
SWA3608 Southwest Airlines 4 2026-07-12
SWA3589 Southwest Airlines 4 2026-04-24
SWA3438 Southwest Airlines 4 2026-04-20
SWA3235 Southwest Airlines 4 2026-05-27
SWA2594 Southwest Airlines 4 2026-05-31
SWA250 Southwest Airlines 4 2026-05-15
SWA1775 Southwest Airlines 4 2026-06-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SWA599 - Jul 14, 18:25 UTCJul 14, 19:15 UTC50m
2026-07-14 SWA599 NAS → MCO Jul 14, 18:14 UTCJul 14, 19:06 UTC52m
2026-07-14 SWA600 - Jul 14, 16:20 UTCJul 14, 16:55 UTC35m
2026-07-14 SWA1349 - Jul 14, 12:50 UTCJul 14, 14:55 UTC2h 5m
2026-07-14 SWA1636 - Jul 14, 11:10 UTCJul 14, 11:50 UTC40m
2026-07-14 SWA1636 HOU → DAL Jul 14, 11:06 UTCJul 14, 11:51 UTC45m
2026-07-14 SWA207 - Jul 14, 03:55 UTCJul 14, 05:30 UTC1h 35m
2026-07-14 SWA4626 - Jul 14, 01:40 UTCJul 14, 03:05 UTC1h 25m
2026-07-13 SWA184 - Jul 13, 21:20 UTCJul 14, 00:10 UTC2h 50m
2026-07-13 SWA1433 - Jul 13, 17:15 UTCJul 13, 20:15 UTC3h 0m
2026-07-13 SWA1433 DCA → HOU Jul 13, 17:14 UTCJul 13, 20:13 UTC3h 0m
2026-07-13 SWA1908 - Jul 13, 13:55 UTCJul 13, 15:45 UTC1h 50m
2026-07-13 SWA212 ATL → MCO Jul 13, 11:55 UTCJul 13, 12:55 UTC1h 0m
2026-07-13 SWA2179 LAS → ATL Jul 13, 06:10 UTCJul 13, 09:40 UTC3h 30m
2026-07-13 SWA2179 LAS → ATL Jul 13, 06:05 UTCJul 13, 09:38 UTC3h 34m
2026-07-13 SWA799 BUR → LAS Jul 13, 03:10 UTCJul 13, 03:55 UTC45m
2026-07-13 SWA799 BUR → LAS Jul 13, 03:06 UTCJul 13, 03:49 UTC43m
2026-07-13 SWA4228 SFO → BUR Jul 13, 01:30 UTCJul 13, 02:20 UTC50m
2026-07-12 SWA3334 PHX → SFO Jul 12, 22:51 UTCJul 13, 00:18 UTC1h 27m
2026-07-12 SWA3334 PHX → SFO Jul 12, 22:55 UTCJul 13, 00:30 UTC1h 35m
2026-07-12 SWA3608 ALB → TPA Jul 12, 19:10 UTCJul 12, 21:25 UTC2h 15m
2026-07-12 SWA3608 ALB → TPA Jul 12, 19:07 UTCJul 12, 21:20 UTC2h 14m
2026-07-12 SWA3608 ALB → TPA Jul 12, 15:30 UTCJul 12, 18:10 UTC2h 40m
2026-07-12 SWA3011 - Jul 12, 12:40 UTCJul 12, 14:10 UTC1h 30m
2026-07-12 SWA4756 - Jul 12, 02:45 UTCJul 12, 03:25 UTC40m
2026-07-12 SWA4045 - Jul 12, 01:10 UTCJul 12, 01:40 UTC30m
2026-07-12 SWA4045 SAT → HOU Jul 12, 01:08 UTCJul 12, 01:42 UTC34m
2026-07-11 SWA4045 - Jul 11, 22:20 UTCJul 12, 00:25 UTC2h 5m
2026-07-11 SWA4546 - Jul 11, 20:25 UTCJul 11, 20:35 UTC10m
2026-07-11 SWA4546 - Jul 11, 18:10 UTCJul 11, 20:20 UTC2h 10m
2026-07-11 SWA3583 - Jul 11, 14:40 UTCJul 11, 16:50 UTC2h 10m
2026-07-11 SWA2396 - Jul 11, 04:45 UTCJul 11, 13:35 UTC8h 50m
2026-07-11 SWA2396 OAK → LAX Jul 11, 03:05 UTCJul 11, 04:05 UTC1h 0m
2026-07-11 SWA2396 SEA → OAK Jul 11, 00:30 UTCJul 11, 02:10 UTC1h 40m
2026-07-10 SWA4982 SJC → SEA Jul 10, 21:45 UTCJul 10, 23:20 UTC1h 35m
2026-07-10 SWA3861 - Jul 10, 19:25 UTCJul 10, 20:20 UTC55m
2026-07-10 SWA1240 - Jul 10, 17:15 UTCJul 10, 18:25 UTC1h 10m
2026-07-10 SWA1240 DEN → OAK Jul 10, 14:15 UTCJul 10, 16:25 UTC2h 10m
2026-07-10 SWA3233 PHX → DEN Jul 10, 03:35 UTCJul 10, 04:55 UTC1h 20m
2026-07-10 SWA3233 PHX → DEN Jul 10, 03:35 UTCJul 10, 04:56 UTC1h 21m
2026-07-10 SWA3538 - Jul 10, 01:20 UTCJul 10, 02:30 UTC1h 10m
2026-07-09 SWA3538 - Jul 9, 23:10 UTCJul 10, 00:30 UTC1h 20m
2026-07-09 SWA3538 - Jul 9, 21:10 UTCJul 9, 22:10 UTC1h 0m
2026-07-09 SWA3454 - Jul 9, 18:25 UTCJul 9, 19:35 UTC1h 10m
2026-07-09 SWA339 - Jul 9, 16:25 UTCJul 9, 17:15 UTC50m
2026-07-09 SWA4245 - Jul 9, 14:10 UTCJul 9, 15:15 UTC1h 5m
2026-07-09 SWA839 BUR → PHX Jul 9, 04:25 UTCJul 9, 05:25 UTC1h 0m
2026-07-09 SWA839 BUR → PHX Jul 9, 04:25 UTCJul 9, 05:35 UTC1h 10m
2026-07-09 SWA3360 SMF → GYR Jul 9, 03:00 UTCJul 9, 05:15 UTC2h 15m
2026-07-09 SWA3360 SMF → BUR Jul 9, 02:57 UTCJul 9, 03:51 UTC54m

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 N234WN page for operator, model, and routing details .

Mode-S A2195D frequently asked

What is Mode-S code A2195D?
A2195D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N234WN.
Where is Mode-S A2195D registered?
Mode-S code A2195D 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 A2195D 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 A2195D, octal 50414535, decimal 10,623,325.
What flights does A2195D operate?
Mode-S A2195D has broadcast 20 distinct callsigns, including SWA599, SWA1683, SWA826, SWA37, SWA3091.