Apparatus

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sensors Mode-S transponder

A318EA

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N299WN · BOEING 737-700 · operated by SOUTHWEST AIRLINES CO

Hex
A318EA
Octal
50614352
Decimal
10,688,746
Country
US
Tail
N299WN
Type
B737
No current signal · last broadcast 1h ago
Flights observed
673
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S A318EA.

Country allocation

The ICAO 24-bit address A318EA 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
SWA4272 Southwest Airlines 8 2026-05-26
SWA3616 Southwest Airlines 7 2026-04-23
SWA2737 Southwest Airlines 7 2026-05-12
SWA1082 Southwest Airlines 7 2026-05-23
SWA1450 - 6 2026-07-13
SWA1315 Southwest Airlines 6 2026-05-26
SWA428 Southwest Airlines 5 2026-06-02
SWA2728 Southwest Airlines 5 2026-05-22
SWA2450 Southwest Airlines 5 2026-05-29
SWA2154 - 5 2026-06-22
SWA1665 - 5 2026-06-25
SWA1037 Southwest Airlines 5 2026-06-12
SWA771 Southwest Airlines 4 2026-05-23
SWA4599 - 4 2026-04-13
SWA3871 - 4 2026-06-22
SWA3621 Southwest Airlines 4 2026-05-03
SWA3528 Southwest Airlines 4 2026-04-29
SWA2746 Southwest Airlines 4 2026-06-03
SWA2713 Southwest Airlines 4 2026-05-29
SWA267 - 4 2026-07-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SWA4266 - Jul 14, 03:50 UTCJul 14, 04:30 UTC40m
2026-07-14 SWA4693 - Jul 14, 01:15 UTCJul 14, 02:25 UTC1h 10m
2026-07-14 SWA4693 OAK → LAS Jul 14, 01:11 UTCJul 14, 02:20 UTC1h 9m
2026-07-13 SWA170 - Jul 13, 23:15 UTCJul 14, 00:15 UTC1h 0m
2026-07-13 SWA170 - Jul 13, 21:45 UTCJul 13, 22:30 UTC45m
2026-07-13 SWA170 ABQ → LAS Jul 13, 19:25 UTCJul 13, 20:35 UTC1h 10m
2026-07-13 SWA170 DEN → ABQ Jul 13, 17:35 UTCJul 13, 18:25 UTC50m
2026-07-13 SWA1450 - Jul 13, 14:15 UTCJul 13, 16:10 UTC1h 55m
2026-07-13 SWA1450 DCA → MKE Jul 13, 11:45 UTCJul 13, 13:20 UTC1h 35m
2026-07-12 SWA738 - Jul 12, 16:50 UTCJul 12, 19:25 UTC2h 35m
2026-07-12 SWA738 - Jul 12, 15:15 UTCJul 12, 15:50 UTC35m
2026-07-12 SWA738 MCO → DAL Jul 12, 12:05 UTCJul 12, 14:15 UTC2h 10m
2026-07-11 SWA1155 - Jul 11, 23:25 UTCJul 12, 01:25 UTC2h 0m
2026-07-11 SWA1009 - Jul 11, 18:20 UTCJul 11, 19:45 UTC1h 25m
2026-07-11 SWA1009 MDW → BWI Jul 11, 18:19 UTCJul 11, 19:45 UTC1h 26m
2026-07-11 SWA872 - Jul 11, 16:00 UTCJul 11, 16:55 UTC55m
2026-07-11 SWA872 SDF → MDW Jul 11, 15:59 UTCJul 11, 16:53 UTC55m
2026-07-11 SWA872 MCO → SDF Jul 11, 13:20 UTCJul 11, 15:05 UTC1h 45m
2026-07-11 SWA4358 STL → MCO Jul 11, 10:15 UTCJul 11, 12:15 UTC2h 0m
2026-07-11 SWA4358 STL → MCO Jul 11, 10:12 UTCJul 11, 12:10 UTC1h 58m
2026-07-11 SWA682 - Jul 11, 04:15 UTCJul 11, 05:15 UTC1h 0m
2026-07-11 SWA816 - Jul 11, 01:40 UTCJul 11, 02:35 UTC55m
2026-07-10 SWA816 - Jul 10, 21:25 UTCJul 11, 00:50 UTC3h 25m
2026-07-10 SWA816 BUR → PHX Jul 10, 19:20 UTCJul 10, 20:30 UTC1h 10m
2026-07-10 SWA1100 OAK → LAS Jul 10, 17:15 UTCJul 10, 18:20 UTC1h 5m
2026-07-10 SWA1100 OAK → LAS Jul 10, 17:15 UTCJul 10, 18:16 UTC1h 1m
2026-07-10 SWA4421 SLC → PHX Jul 10, 15:35 UTCJul 10, 16:25 UTC50m
2026-07-10 SWA4421 SLC → PHX Jul 10, 13:00 UTCJul 10, 14:00 UTC1h 0m
2026-07-10 SWA4270 LAS → OAK Jul 10, 03:30 UTCJul 10, 04:40 UTC1h 10m
2026-07-10 SWA4270 LAS → OAK Jul 10, 03:30 UTCJul 10, 04:33 UTC1h 3m
2026-07-10 SWA3602 SBA → LAS Jul 10, 01:29 UTCJul 10, 02:15 UTC46m
2026-07-10 SWA3602 SBA → LAS Jul 10, 01:30 UTCJul 10, 02:20 UTC50m
2026-07-09 SWA2002 - Jul 9, 23:05 UTCJul 10, 00:00 UTC55m
2026-07-09 SWA2002 - Jul 9, 19:20 UTCJul 9, 21:55 UTC2h 35m
2026-07-09 SWA356 - Jul 9, 16:10 UTCJul 9, 18:15 UTC2h 5m
2026-07-09 SWA356 - Jul 9, 13:20 UTCJul 9, 14:55 UTC1h 35m
2026-07-09 SWA2732 - Jul 9, 10:00 UTCJul 9, 12:00 UTC2h 0m
2026-07-09 SWA1668 BWI → MHT Jul 9, 01:55 UTCJul 9, 02:55 UTC1h 0m
2026-07-08 SWA4294 - Jul 8, 22:10 UTCJul 9, 00:15 UTC2h 5m
2026-07-08 SWA3224 - Jul 8, 18:45 UTCJul 8, 21:20 UTC2h 35m
2026-07-08 SWA3224 PHL → MDW Jul 8, 15:35 UTCJul 8, 17:10 UTC1h 35m
2026-07-08 SWA4122 - Jul 8, 12:55 UTCJul 8, 14:25 UTC1h 30m
2026-07-08 SWA4122 MDW → PHL Jul 8, 12:55 UTCJul 8, 14:30 UTC1h 35m
2026-07-08 SWA2284 MSP → MDW Jul 8, 10:30 UTCJul 8, 11:40 UTC1h 10m
2026-07-08 SWA4085 - Jul 8, 03:00 UTCJul 8, 04:05 UTC1h 5m
2026-07-08 SWA2246 - Jul 8, 00:05 UTCJul 8, 00:50 UTC45m
2026-07-08 SWA2246 SDF → MDW Jul 8, 00:01 UTCJul 8, 00:47 UTC46m
2026-07-07 SWA2246 LAS → SDF Jul 7, 20:00 UTCJul 7, 23:20 UTC3h 20m
2026-07-07 SWA2246 OAK → LAS Jul 7, 17:15 UTCJul 7, 18:20 UTC1h 5m
2026-07-07 SWA3715 - Jul 7, 15:10 UTCJul 7, 16:10 UTC1h 0m

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 N299WN page for operator, model, and routing details .

Mode-S A318EA frequently asked

What is Mode-S code A318EA?
A318EA is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N299WN.
Where is Mode-S A318EA registered?
Mode-S code A318EA 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 A318EA broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A318EA, octal 50614352, decimal 10,688,746.
What flights does A318EA operate?
Mode-S A318EA has broadcast 20 distinct callsigns, including SWA4272, SWA3616, SWA2737, SWA1082, SWA1450.