Apparatus

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sensors Mode-S transponder

A5958C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N459WN · BOEING 737-700 · operated by SOUTHWEST AIRLINES CO

Hex
A5958C
Octal
51312614
Decimal
10,851,724
Country
US
Tail
N459WN
Type
B737
Broadcasting now · callsign SWA1305 · 36,975 ft
Flights observed
667
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Current position

A5958C is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A5958C 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
SWA1297 - 9 2026-07-09
SWA284 - 6 2026-06-16
SWA983 Southwest Airlines 5 2026-06-05
SWA342 Southwest Airlines 5 2026-05-03
SWA3091 Southwest Airlines 5 2026-04-26
SWA285 Southwest Airlines 5 2026-06-15
SWA1315 Southwest Airlines 5 2026-04-14
SWA445 - 4 2026-07-10
SWA4370 - 4 2026-07-05
SWA3941 - 4 2026-04-13
SWA3665 Southwest Airlines 4 2026-05-10
SWA3297 Southwest Airlines 4 2026-05-14
SWA2974 Southwest Airlines 4 2026-06-02
SWA290 - 4 2026-06-21
SWA2585 Southwest Airlines 4 2026-04-18
SWA2433 - 4 2026-07-03
SWA2379 Southwest Airlines 4 2026-05-20
SWA1597 - 4 2026-06-19
SWA1518 Southwest Airlines 4 2026-05-09
SWA1192 Southwest Airlines 4 2026-05-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 SWA1859 - Jul 13, 22:35 UTCJul 14, 02:05 UTC3h 30m
2026-07-13 SWA2165 BUR → SFO Jul 13, 20:40 UTCJul 13, 21:30 UTC50m
2026-07-13 SWA3635 SFO → BUR Jul 13, 18:40 UTCJul 13, 19:35 UTC55m
2026-07-13 SWA4363 AUS → SFO Jul 13, 14:40 UTCJul 13, 17:45 UTC3h 5m
2026-07-13 SWA4363 ATL → AUS Jul 13, 10:10 UTCJul 13, 12:00 UTC1h 50m
2026-07-13 SWA424 AUS → ATL Jul 13, 04:05 UTCJul 13, 06:01 UTC1h 55m
2026-07-13 SWA2513 LAS → AUS Jul 13, 00:45 UTCJul 13, 03:10 UTC2h 25m
2026-07-12 SWA790 BUR → LAS Jul 12, 20:50 UTCJul 12, 21:40 UTC50m
2026-07-12 SWA1493 PHX → BUR Jul 12, 18:50 UTCJul 12, 19:50 UTC1h 0m
2026-07-12 SWA2154 SJC → PHX Jul 12, 16:15 UTCJul 12, 17:55 UTC1h 40m
2026-07-12 SWA1029 LAS → SJC Jul 12, 14:20 UTCJul 12, 15:20 UTC1h 0m
2026-07-12 SWA1029 LAS → SJC Jul 12, 14:20 UTCJul 12, 15:16 UTC56m
2026-07-12 SWA868 OKC → LAS Jul 12, 11:10 UTCJul 12, 13:10 UTC2h 0m
2026-07-12 SWA868 OKC → LAS Jul 12, 11:07 UTCJul 12, 13:08 UTC2h 1m
2026-07-12 SWA4128 - Jul 12, 05:20 UTCJul 12, 05:50 UTC30m
2026-07-12 SWA4128 DAL → OKC Jul 12, 05:15 UTCJul 12, 05:57 UTC42m
2026-07-12 SWA419 - Jul 12, 01:35 UTCJul 12, 04:15 UTC2h 40m
2026-07-12 SWA419 LAX → DAL Jul 12, 01:33 UTCJul 12, 04:18 UTC2h 46m
2026-07-11 SWA1590 - Jul 11, 22:30 UTCJul 11, 23:00 UTC30m
2026-07-11 SWA1590 ABQ → LAX Jul 11, 22:26 UTCJul 11, 23:52 UTC1h 27m
2026-07-11 SWA1590 - Jul 11, 17:45 UTCJul 11, 21:25 UTC3h 40m
2026-07-11 SWA1143 TPA → BWI Jul 11, 14:20 UTCJul 11, 16:15 UTC1h 55m
2026-07-11 SWA1143 TPA → BWI Jul 11, 14:20 UTCJul 11, 16:11 UTC1h 51m
2026-07-11 SWA1415 DAL → TPA Jul 11, 11:15 UTCJul 11, 13:16 UTC2h 1m
2026-07-11 SWA1415 DAL → TPA Jul 11, 11:15 UTCJul 11, 13:15 UTC2h 0m
2026-07-11 SWA4553 - Jul 11, 03:01 UTCJul 11, 03:45 UTC45m
2026-07-11 SWA4415 - Jul 11, 01:35 UTCJul 11, 02:20 UTC45m
2026-07-10 SWA4401 LGA → DAL Jul 10, 21:31 UTCJul 11, 00:35 UTC3h 4m
2026-07-10 SWA4401 LGA → DAL Jul 10, 21:30 UTCJul 11, 00:40 UTC3h 10m
2026-07-10 SWA4731 BNA → LGA Jul 10, 17:55 UTCJul 10, 19:45 UTC1h 50m
2026-07-10 SWA445 MKE → BNA Jul 10, 15:40 UTCJul 10, 16:50 UTC1h 10m
2026-07-10 SWA445 MKE → BNA Jul 10, 15:39 UTCJul 10, 16:46 UTC1h 7m
2026-07-10 SWA4459 - Jul 10, 12:15 UTCJul 10, 14:40 UTC2h 25m
2026-07-10 SWA3083 - Jul 10, 10:15 UTCJul 10, 10:45 UTC30m
2026-07-10 SWA2678 - Jul 10, 01:35 UTCJul 10, 02:10 UTC35m
2026-07-10 SWA2678 - Jul 10, 01:35 UTCJul 10, 02:08 UTC33m
2026-07-09 SWA3656 - Jul 9, 22:40 UTCJul 9, 23:50 UTC1h 10m
2026-07-09 SWA3656 - Jul 9, 20:10 UTCJul 9, 21:40 UTC1h 30m
2026-07-09 SWA3896 - Jul 9, 14:15 UTCJul 9, 18:55 UTC4h 40m
2026-07-09 SWA250 - Jul 9, 04:40 UTCJul 9, 05:50 UTC1h 10m
2026-07-09 SWA3398 - Jul 9, 02:55 UTCJul 9, 03:55 UTC1h 0m
2026-07-09 SWA3398 SAN → OAK Jul 9, 02:50 UTCJul 9, 03:49 UTC1h 0m
2026-07-09 SWA1297 - Jul 9, 00:20 UTCJul 9, 01:30 UTC1h 10m
2026-07-09 SWA1297 SDF → DEN Jul 9, 00:19 UTCJul 9, 01:29 UTC1h 10m
2026-07-08 SWA1297 DEN → SMF Jul 8, 20:50 UTCJul 8, 23:00 UTC2h 10m
2026-07-08 SWA1297 - Jul 8, 17:30 UTCJul 8, 19:45 UTC2h 15m
2026-07-08 SWA1297 - Jul 8, 15:00 UTCJul 8, 16:15 UTC1h 15m
2026-07-08 SWA2988 - Jul 8, 12:00 UTCJul 8, 13:35 UTC1h 35m
2026-07-08 SWA3406 - Jul 8, 02:40 UTCJul 8, 03:35 UTC55m
2026-07-07 SWA654 - Jul 7, 23:00 UTCJul 8, 00:30 UTC1h 30m

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 N459WN page for operator, model, and routing details .

Mode-S A5958C frequently asked

What is Mode-S code A5958C?
A5958C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N459WN.
Where is Mode-S A5958C registered?
Mode-S code A5958C 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 A5958C broadcasting right now?
Yes. Mode-S A5958C is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A5958C, octal 51312614, decimal 10,851,724.
What flights does A5958C operate?
Mode-S A5958C has broadcast 20 distinct callsigns, including SWA1297, SWA284, SWA983, SWA342, SWA3091.