Apparatus

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sensors Mode-S transponder

A600E4

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N486WN · BOEING 737-700 · operated by SOUTHWEST AIRLINES CO

Hex
A600E4
Octal
51400344
Decimal
10,879,204
Country
US
Tail
N486WN
Type
B737
No current signal · last broadcast 15d ago
Flights observed
589
Distinct callsigns
20
Country
US
Last broadcast
15d ago

Last known position

Most recent position reported by Mode-S A600E4.

Country allocation

The ICAO 24-bit address A600E4 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
SWA697 Southwest Airlines 5 2026-05-24
SWA2780 Southwest Airlines 5 2026-05-18
SWA270 Southwest Airlines 5 2026-06-15
SWA267 Southwest Airlines 5 2026-06-02
SWA2644 Southwest Airlines 5 2026-04-17
SWA1738 - 5 2026-06-20
SWA1095 Southwest Airlines 5 2026-05-07
SWA962 Southwest Airlines 4 2026-06-08
SWA649 Southwest Airlines 4 2026-05-12
SWA576 Southwest Airlines 4 2026-04-18
SWA4146 - 4 2026-06-26
SWA369 Southwest Airlines 4 2026-05-21
SWA3613 - 4 2026-04-14
SWA3494 Southwest Airlines 4 2026-05-29
SWA3391 Southwest Airlines 4 2026-04-21
SWA2329 Southwest Airlines 4 2026-04-17
SWA2117 Southwest Airlines 4 2026-05-26
SWA1764 Southwest Airlines 4 2026-05-18
SWA1684 - 4 2026-06-22
SWA1498 Southwest Airlines 4 2026-05-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-29 SWA8512 - Jun 29, 05:59 UTCJun 29, 08:35 UTC2h 35m
2026-06-29 SWA378 AUS → PHX Jun 29, 03:14 UTCJun 29, 05:09 UTC1h 55m
2026-06-29 SWA4074 BWI → PWM Jun 29, 01:00 UTCJun 29, 02:20 UTC1h 20m
2026-06-29 SWA4074 BWI → PWM Jun 29, 00:59 UTCJun 29, 02:19 UTC1h 20m
2026-06-28 SWA1496 - Jun 28, 22:49 UTCJun 29, 00:14 UTC1h 25m
2026-06-28 SWA1496 DAL → ABQ Jun 28, 22:47 UTCJun 29, 00:09 UTC1h 22m
2026-06-28 SWA3014 - Jun 28, 20:54 UTCJun 28, 21:40 UTC45m
2026-06-28 SWA3014 - Jun 28, 18:10 UTCJun 28, 19:49 UTC1h 40m
2026-06-28 SWA4118 - Jun 28, 16:14 UTCJun 28, 16:45 UTC30m
2026-06-28 SWA4118 MTJ → DEN Jun 28, 16:06 UTCJun 28, 16:40 UTC34m
2026-06-28 SWA422 DEN → MTJ Jun 28, 04:05 UTCJun 28, 04:42 UTC37m
2026-06-28 SWA422 - Jun 28, 04:10 UTCJun 28, 04:40 UTC30m
2026-06-27 SWA1293 MCO → DEN Jun 27, 23:34 UTCJun 28, 02:54 UTC3h 20m
2026-06-27 SWA2132 SAN → MCO Jun 27, 15:46 UTCJun 27, 20:18 UTC4h 33m
2026-06-27 SWA2132 - Jun 27, 15:49 UTCJun 27, 20:24 UTC4h 35m
2026-06-27 SWA2049 SFO → SAN Jun 27, 13:15 UTCJun 27, 14:29 UTC1h 15m
2026-06-27 SWA4397 LAS → SFO Jun 27, 06:19 UTCJun 27, 07:34 UTC1h 15m
2026-06-27 SWA4397 LAS → SFO Jun 27, 06:19 UTCJun 27, 07:31 UTC1h 12m
2026-06-27 SWA548 - Jun 27, 01:35 UTCJun 27, 04:59 UTC3h 25m
2026-06-27 SWA548 BNA → LAS Jun 27, 01:34 UTCJun 27, 05:05 UTC3h 31m
2026-06-26 SWA4108 - Jun 26, 23:15 UTCJun 27, 00:20 UTC1h 5m
2026-06-26 SWA4108 - Jun 26, 20:50 UTCJun 26, 21:59 UTC1h 10m
2026-06-26 SWA1433 SAN → OAK Jun 26, 16:49 UTCJun 26, 19:30 UTC2h 40m
2026-06-26 SWA1908 - Jun 26, 14:05 UTCJun 26, 15:49 UTC1h 45m
2026-06-26 SWA1908 MCO → DCA Jun 26, 14:03 UTCJun 26, 15:47 UTC1h 45m
2026-06-26 SWA4146 AUS → MCO Jun 26, 10:30 UTCJun 26, 12:44 UTC2h 15m
2026-06-26 SWA4146 AUS → MCO Jun 26, 10:29 UTCJun 26, 12:43 UTC2h 14m
2026-06-26 SWA1953 - Jun 26, 04:30 UTCJun 26, 04:55 UTC25m
2026-06-26 SWA3212 - Jun 26, 00:15 UTCJun 26, 03:00 UTC2h 45m
2026-06-25 SWA3212 SMF → SAN Jun 25, 21:50 UTCJun 25, 22:59 UTC1h 10m
2026-06-25 SWA3212 - Jun 25, 19:39 UTCJun 25, 20:45 UTC1h 5m
2026-06-25 SWA949 - Jun 25, 17:44 UTCJun 25, 18:50 UTC1h 5m
2026-06-25 SWA949 SMF → PDX Jun 25, 17:43 UTCJun 25, 18:51 UTC1h 8m
2026-06-25 SWA4218 - Jun 25, 13:35 UTCJun 25, 16:50 UTC3h 15m
2026-06-25 SWA3109 - Jun 25, 10:55 UTCJun 25, 11:30 UTC35m
2026-06-25 SWA175 DEN → OKC Jun 25, 06:09 UTCJun 25, 07:30 UTC1h 20m
2026-06-25 SWA9006 - Jun 25, 01:50 UTCJun 25, 04:35 UTC2h 45m
2026-06-25 SWA694 - Jun 25, 00:24 UTCJun 25, 00:49 UTC25m
2026-06-24 SWA1266 LGA → MSY Jun 24, 21:14 UTCJun 24, 23:24 UTC2h 10m
2026-06-24 SWA1266 LGA → MSY Jun 24, 19:10 UTCJun 24, 19:59 UTC50m
2026-06-24 SWA275 - Jun 24, 14:24 UTCJun 24, 18:09 UTC3h 45m
2026-06-24 SWA275 BWI → DEN Jun 24, 14:22 UTCJun 24, 18:04 UTC3h 43m
2026-06-24 SWA4550 - Jun 24, 12:40 UTCJun 24, 13:24 UTC45m
2026-06-24 SWA2690 - Jun 24, 00:49 UTCJun 24, 02:05 UTC1h 15m
2026-06-23 SWA692 BDL → MCO Jun 23, 21:20 UTCJun 23, 23:50 UTC2h 30m
2026-06-23 SWA692 - Jun 23, 17:59 UTCJun 23, 19:39 UTC1h 40m
2026-06-23 SWA1198 - Jun 23, 16:05 UTCJun 23, 16:59 UTC55m
2026-06-23 SWA1198 - Jun 23, 13:15 UTCJun 23, 15:09 UTC1h 55m
2026-06-23 SWA1636 - Jun 23, 11:10 UTCJun 23, 11:49 UTC40m
2026-06-22 SWA3129 - Jun 22, 23:05 UTCJun 23, 00:50 UTC1h 45m

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 N486WN page for operator, model, and routing details .

Mode-S A600E4 frequently asked

What is Mode-S code A600E4?
A600E4 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N486WN.
Where is Mode-S A600E4 registered?
Mode-S code A600E4 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 A600E4 broadcasting right now?
No active broadcast right now. Last signal was 15d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A600E4, octal 51400344, decimal 10,879,204.
What flights does A600E4 operate?
Mode-S A600E4 has broadcast 20 distinct callsigns, including SWA697, SWA2780, SWA270, SWA267, SWA2644.