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sensors Mode-S transponder

A63388

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N499WN · BOEING 737-700 · operated by SOUTHWEST AIRLINES CO

Hex
A63388
Octal
51431610
Decimal
10,892,168
Country
US
Tail
N499WN
Type
B737
No current signal · last broadcast 1d ago
Flights observed
668
Distinct callsigns
20
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A63388.

Country allocation

The ICAO 24-bit address A63388 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
SWA2310 - 10 2026-06-19
SWA3968 Southwest Airlines 6 2026-05-07
SWA913 - 5 2026-06-25
SWA576 Southwest Airlines 5 2026-05-14
SWA389 Southwest Airlines 5 2026-04-13
SWA3772 - 5 2026-07-08
SWA3643 Southwest Airlines 5 2026-06-01
SWA3312 - 5 2026-07-09
SWA319 - 5 2026-07-06
SWA2901 Southwest Airlines 5 2026-05-16
SWA1303 - 5 2026-06-29
SWA617 - 4 2026-06-25
SWA554 Southwest Airlines 4 2026-06-06
SWA4400 - 4 2026-06-29
SWA4213 Southwest Airlines 4 2026-06-17
SWA411 - 4 2026-06-29
SWA3743 - 4 2026-07-06
SWA3532 Southwest Airlines 4 2026-05-15
SWA3498 Southwest Airlines 4 2026-05-26
SWA30 Southwest Airlines 4 2026-05-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 SWA8533 - Jul 13, 15:20 UTCJul 13, 17:40 UTC2h 20m
2026-07-13 SWA8533 HOU → SAL Jul 13, 15:18 UTCJul 13, 17:51 UTC2h 33m
2026-07-13 SWA8502 - Jul 13, 13:05 UTCJul 13, 13:35 UTC30m
2026-07-13 SWA8800 - Jul 13, 11:45 UTCJul 13, 12:15 UTC30m
2026-07-13 SWA3682 - Jul 13, 01:55 UTCJul 13, 03:01 UTC1h 5m
2026-07-13 SWA3682 AUS → DAL Jul 13, 01:55 UTCJul 13, 03:19 UTC1h 24m
2026-07-12 SWA3682 BUR → AUS Jul 12, 20:55 UTCJul 13, 00:20 UTC3h 25m
2026-07-12 SWA2765 SMF → BUR Jul 12, 18:50 UTCJul 12, 19:45 UTC55m
2026-07-12 SWA2765 SMF → BUR Jul 12, 18:46 UTCJul 12, 19:44 UTC58m
2026-07-12 SWA3868 - Jul 12, 16:15 UTCJul 12, 17:20 UTC1h 5m
2026-07-12 SWA4723 - Jul 12, 03:45 UTCJul 12, 04:25 UTC40m
2026-07-12 SWA4723 LAS → SNA Jul 12, 03:42 UTCJul 12, 04:24 UTC42m
2026-07-11 SWA1414 - Jul 11, 23:45 UTCJul 12, 02:05 UTC2h 20m
2026-07-11 SWA1622 - Jul 11, 20:00 UTCJul 11, 22:45 UTC2h 45m
2026-07-11 SWA3442 - Jul 11, 18:00 UTCJul 11, 19:00 UTC1h 0m
2026-07-11 SWA3623 - Jul 11, 15:45 UTCJul 11, 16:45 UTC1h 0m
2026-07-11 SWA3623 SAN → RNO Jul 11, 15:46 UTCJul 11, 16:50 UTC1h 4m
2026-07-11 SWA4813 - Jul 11, 13:10 UTCJul 11, 14:25 UTC1h 15m
2026-07-11 SWA4813 STS → SAN Jul 11, 13:06 UTCJul 11, 14:26 UTC1h 20m
2026-07-11 SWA4191 - Jul 11, 05:25 UTCJul 11, 06:40 UTC1h 15m
2026-07-11 SWA4191 SAN → STS Jul 11, 05:21 UTCJul 11, 06:38 UTC1h 17m
2026-07-10 SWA2696 - Jul 10, 23:45 UTCJul 11, 04:15 UTC4h 30m
2026-07-10 SWA3995 - Jul 10, 18:50 UTCJul 10, 21:25 UTC2h 35m
2026-07-10 SWA4999 - Jul 10, 15:10 UTCJul 10, 17:40 UTC2h 30m
2026-07-10 SWA3011 - Jul 10, 12:10 UTCJul 10, 13:35 UTC1h 25m
2026-07-10 SWA3011 MSY → MCO Jul 10, 12:09 UTCJul 10, 13:32 UTC1h 23m
2026-07-10 SWA4756 EFD → MSY Jul 10, 01:55 UTCJul 10, 02:40 UTC45m
2026-07-10 SWA4756 HOU → MSY Jul 10, 01:52 UTCJul 10, 02:41 UTC49m
2026-07-09 SWA3129 - Jul 9, 23:05 UTCJul 10, 01:05 UTC2h 0m
2026-07-09 SWA2896 LGA → OMA Jul 9, 19:25 UTCJul 9, 22:15 UTC2h 50m
2026-07-09 SWA2896 LGA → OMA Jul 9, 19:24 UTCJul 9, 22:06 UTC2h 42m
2026-07-09 SWA3008 MSY → LGA Jul 9, 15:05 UTCJul 9, 18:15 UTC3h 10m
2026-07-09 SWA3008 MSY → LGA Jul 9, 15:02 UTCJul 9, 18:13 UTC3h 12m
2026-07-09 SWA3312 - Jul 9, 12:05 UTCJul 9, 13:05 UTC1h 0m
2026-07-08 SWA3772 - Jul 8, 22:55 UTCJul 9, 01:45 UTC2h 50m
2026-07-08 SWA3772 SMF → DAL Jul 8, 22:52 UTCJul 9, 01:42 UTC2h 50m
2026-07-08 SWA3772 - Jul 8, 20:55 UTCJul 8, 21:50 UTC55m
2026-07-08 SWA3991 - Jul 8, 19:05 UTCJul 8, 20:00 UTC55m
2026-07-08 SWA3685 - Jul 8, 16:50 UTCJul 8, 18:10 UTC1h 20m
2026-07-08 SWA3685 LAS → STS Jul 8, 16:49 UTCJul 8, 18:03 UTC1h 14m
2026-07-08 SWA2865 TPA → LAS Jul 8, 11:25 UTCJul 8, 15:35 UTC4h 10m
2026-07-08 SWA417 AUS → TPA Jul 8, 01:15 UTCJul 8, 03:15 UTC2h 0m
2026-07-07 SWA417 LAS → AUS Jul 7, 21:55 UTCJul 8, 00:15 UTC2h 20m
2026-07-07 SWA546 - Jul 7, 17:20 UTCJul 7, 20:40 UTC3h 20m
2026-07-07 SWA1761 - Jul 7, 14:40 UTCJul 7, 15:50 UTC1h 10m
2026-07-07 SWA1761 - Jul 7, 12:35 UTCJul 7, 13:30 UTC55m
2026-07-07 SWA3438 - Jul 7, 10:25 UTCJul 7, 10:55 UTC30m
2026-07-07 SWA3438 RIC → BWI Jul 7, 10:20 UTCJul 7, 10:50 UTC30m
2026-07-07 SWA2875 - Jul 7, 02:25 UTCJul 7, 03:55 UTC1h 30m
2026-07-07 SWA2875 MDW → RIC Jul 7, 02:20 UTCJul 7, 03:51 UTC1h 31m

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 N499WN page for operator, model, and routing details .

Mode-S A63388 frequently asked

What is Mode-S code A63388?
A63388 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N499WN.
Where is Mode-S A63388 registered?
Mode-S code A63388 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 A63388 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A63388, octal 51431610, decimal 10,892,168.
What flights does A63388 operate?
Mode-S A63388 has broadcast 20 distinct callsigns, including SWA2310, SWA3968, SWA913, SWA576, SWA389.