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sensors Mode-S transponder

AD0919

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N939WN · BOEING 737-700 · operated by SOUTHWEST AIRLINES CO

Hex
AD0919
Octal
53204431
Decimal
11,340,057
Country
US
Tail
N939WN
Type
B737
No current signal · last broadcast Jul 26, 20:35 UTC
Flights observed
754
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:35 UTC

Last known position

Most recent position reported by Mode-S AD0919.

Country allocation

The ICAO 24-bit address AD0919 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
SWA3791 Southwest Airlines 10 2026-05-14
SWA1437 - 7 2026-06-16
SWA3968 Southwest Airlines 6 2026-05-28
SWA1092 Southwest Airlines 6 2026-05-17
SWA342 - 5 2026-06-17
SWA3335 Southwest Airlines 5 2026-05-04
SWA2693 Southwest Airlines 5 2026-07-24
SWA25 Southwest Airlines 5 2026-05-26
SWA2072 Southwest Airlines 5 2026-05-10
SWA1775 Southwest Airlines 5 2026-04-23
SWA1396 Southwest Airlines 5 2026-04-27
SWA1198 Southwest Airlines 5 2026-05-06
SWA623 Southwest Airlines 4 2026-04-28
SWA4758 - 4 2026-07-11
SWA4355 Southwest Airlines 4 2026-06-18
SWA3877 - 4 2026-07-21
SWA369 Southwest Airlines 4 2026-05-08
SWA3243 Southwest Airlines 4 2026-06-03
SWA2794 - 4 2026-07-11
SWA2687 - 4 2026-04-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA816 LAS → COS Jul 26, 19:25 UTCJul 26, 20:35 UTC1h 10m
2026-07-26 SWA4843 LAS → FAT Jul 26, 13:40 UTCJul 26, 14:30 UTC50m
2026-07-26 SWA1029 OAK → DEN Jul 26, 01:55 UTCJul 26, 02:45 UTC50m
2026-07-26 SWA1029 OAK → DEN Jul 26, 01:54 UTCJul 26, 02:44 UTC50m
2026-07-25 SWA1029 OAK → DEN Jul 25, 22:40 UTCJul 26, 01:10 UTC2h 30m
2026-07-25 SWA1029 OAK → DEN Jul 25, 20:45 UTCJul 25, 21:20 UTC35m
2026-07-25 SWA30 IND → RSW Jul 25, 18:45 UTCJul 25, 19:25 UTC40m
2026-07-25 SWA30 IND → RSW Jul 25, 17:05 UTCJul 25, 17:40 UTC35m
2026-07-25 SWA1252 PHX → HOU Jul 25, 15:40 UTCJul 25, 16:15 UTC35m
2026-07-25 SWA1252 PHX → HOU Jul 25, 13:55 UTCJul 25, 14:40 UTC45m
2026-07-25 SWA1005 BUR → SMF Jul 25, 02:05 UTCJul 25, 03:45 UTC1h 40m
2026-07-25 SWA1005 BUR → SMF Jul 25, 02:04 UTCJul 25, 03:48 UTC1h 44m
2026-07-24 SWA2693 LGB → SJC Jul 24, 23:35 UTCJul 25, 01:00 UTC1h 25m
2026-07-24 SWA2693 LGB → SJC Jul 24, 20:25 UTCJul 24, 22:40 UTC2h 15m
2026-07-24 SWA762 SAN → LAS Jul 24, 17:05 UTCJul 24, 19:15 UTC2h 10m
2026-07-24 SWA762 SAN → LAS Jul 24, 15:15 UTCJul 24, 16:05 UTC50m
2026-07-24 SWA4550 - Jul 24, 12:55 UTCJul 24, 13:45 UTC50m
2026-07-24 SWA4550 RDU → BWI Jul 24, 12:51 UTCJul 24, 13:33 UTC42m
2026-07-24 SWA4431 SLC → SJC Jul 24, 02:10 UTCJul 24, 03:25 UTC1h 15m
2026-07-24 SWA482 BWI → ALB Jul 24, 00:25 UTCJul 24, 01:10 UTC45m
2026-07-23 SWA1094 PHX → BOI Jul 23, 21:40 UTCJul 23, 23:20 UTC1h 40m
2026-07-23 SWA1094 PHX → BOI Jul 23, 19:25 UTCJul 23, 20:40 UTC1h 15m
2026-07-23 SWA1094 PHX → BOI Jul 23, 17:05 UTCJul 23, 18:10 UTC1h 5m
2026-07-23 SWA3529 SNA → STL Jul 23, 15:10 UTCJul 23, 16:00 UTC50m
2026-07-23 SWA3351 PHX → CMH Jul 23, 11:25 UTCJul 23, 14:00 UTC2h 35m
2026-07-23 SWA2064 BWI → BOS Jul 23, 03:30 UTCJul 23, 04:55 UTC1h 25m
2026-07-22 SWA2064 BWI → BOS Jul 22, 23:20 UTCJul 23, 01:45 UTC2h 25m
2026-07-22 SWA4380 BNA → DCA Jul 22, 19:10 UTCJul 22, 20:25 UTC1h 15m
2026-07-22 SWA4380 BNA → DCA Jul 22, 19:07 UTCJul 22, 20:21 UTC1h 14m
2026-07-22 SWA2407 - Jul 22, 16:00 UTCJul 22, 17:55 UTC1h 55m
2026-07-22 SWA2407 LGA → BNA Jul 22, 15:59 UTCJul 22, 17:50 UTC1h 51m
2026-07-22 SWA2182 SAN → SJC Jul 22, 11:40 UTCJul 22, 14:35 UTC2h 55m
2026-07-22 SWA2182 SAN → SJC Jul 22, 11:36 UTCJul 22, 14:32 UTC2h 57m
2026-07-22 SWA2663 MDW → ALB Jul 22, 03:15 UTCJul 22, 05:00 UTC1h 45m
2026-07-22 SWA2663 MDW → ALB Jul 22, 03:10 UTCJul 22, 04:59 UTC1h 49m
2026-07-21 SWA3879 TPA → PVD Jul 21, 23:30 UTCJul 22, 02:05 UTC2h 35m
2026-07-21 SWA3877 - Jul 21, 20:15 UTCJul 21, 22:35 UTC2h 20m
2026-07-21 SWA3877 BWI → SRQ Jul 21, 20:14 UTCJul 21, 22:31 UTC2h 17m
2026-07-21 SWA3877 - Jul 21, 17:30 UTCJul 21, 18:55 UTC1h 25m
2026-07-21 SWA3877 - Jul 21, 15:50 UTCJul 21, 16:20 UTC30m
2026-07-21 SWA3614 - Jul 21, 12:55 UTCJul 21, 14:25 UTC1h 30m
2026-07-21 SWA3614 BUF → MDW Jul 21, 12:49 UTCJul 21, 14:06 UTC1h 17m
2026-07-21 SWA4832 LBB → HOU Jul 21, 01:40 UTCJul 21, 04:00 UTC2h 20m
2026-07-20 SWA176 BNA → TPA Jul 20, 22:05 UTCJul 20, 23:55 UTC1h 50m
2026-07-20 SWA2664 - Jul 20, 16:50 UTCJul 20, 19:55 UTC3h 5m
2026-07-20 SWA2664 DEN → SAT Jul 20, 13:55 UTCJul 20, 15:45 UTC1h 50m
2026-07-20 SWA2664 - Jul 20, 09:20 UTCJul 20, 12:50 UTC3h 30m
2026-07-20 SWA4263 STL → BOS Jul 20, 00:35 UTCJul 20, 02:05 UTC1h 30m
2026-07-20 SWA4263 STL → BOS Jul 20, 00:35 UTCJul 20, 02:06 UTC1h 31m
2026-07-19 SWA1101 BUR → MDW Jul 19, 19:05 UTCJul 19, 22:40 UTC3h 35m

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 N939WN page for operator, model, and routing details .

Mode-S AD0919 frequently asked

What is Mode-S code AD0919?
AD0919 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N939WN.
Where is Mode-S AD0919 registered?
Mode-S code AD0919 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 AD0919 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD0919, octal 53204431, decimal 11,340,057.
What flights does AD0919 operate?
Mode-S AD0919 has broadcast 20 distinct callsigns, including SWA3791, SWA1437, SWA3968, SWA1092, SWA342.