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 Jul 26, 21:40 UTC
Flights observed
764
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:40 UTC

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
SWA174 - 7 2026-07-14
SWA1665 Southwest Airlines 7 2026-07-20
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
SWA1037 Southwest Airlines 5 2026-06-12
SWA937 - 4 2026-07-15
SWA771 Southwest Airlines 4 2026-05-23
SWA4599 - 4 2026-04-13
SWA3965 Southwest Airlines 4 2026-07-22
SWA3871 - 4 2026-06-22
SWA3621 Southwest Airlines 4 2026-05-03
SWA3528 Southwest Airlines 4 2026-04-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA1053 BWI → MCI Jul 26, 21:05 UTCJul 26, 21:40 UTC35m
2026-07-26 SWA3162 RSW → MDW Jul 26, 19:15 UTCJul 26, 20:05 UTC50m
2026-07-26 SWA3162 RSW → MDW Jul 26, 19:12 UTCJul 26, 20:01 UTC49m
2026-07-26 SWA894 SJC → LAX Jul 26, 17:20 UTCJul 26, 18:10 UTC50m
2026-07-26 SWA894 SJC → LAX Jul 26, 15:10 UTCJul 26, 16:15 UTC1h 5m
2026-07-26 SWA898 LAS → OAK Jul 26, 12:35 UTCJul 26, 13:45 UTC1h 10m
2026-07-26 SWA2208 DEN → OKC Jul 26, 05:25 UTCJul 26, 09:35 UTC4h 11m
2026-07-25 SWA22 DAL → AMA Jul 25, 22:30 UTCJul 26, 00:15 UTC1h 45m
2026-07-25 SWA22 DAL → AMA Jul 25, 19:05 UTCJul 25, 19:40 UTC35m
2026-07-25 SWA4279 SJC → LAS Jul 25, 15:25 UTCJul 25, 18:09 UTC2h 45m
2026-07-25 SWA4279 SJC → LAS Jul 25, 15:25 UTCJul 25, 18:15 UTC2h 50m
2026-07-25 SWA4907 SAT → MSY Jul 25, 03:00 UTCJul 25, 03:55 UTC55m
2026-07-25 SWA4907 SAT → MSY Jul 25, 02:55 UTCJul 25, 03:52 UTC57m
2026-07-25 SWA840 MCO → MSY Jul 25, 01:05 UTCJul 25, 01:50 UTC45m
2026-07-24 SWA3768 BWI → TPA Jul 24, 23:05 UTCJul 25, 00:00 UTC55m
2026-07-24 SWA2008 BNA → SAT Jul 24, 21:15 UTCJul 24, 22:10 UTC55m
2026-07-24 SWA2008 BNA → SAT Jul 24, 17:05 UTCJul 24, 19:50 UTC2h 45m
2026-07-24 SWA2524 PSP → DEN Jul 24, 14:55 UTCJul 24, 15:55 UTC1h 0m
2026-07-24 SWA2524 PSP → DEN Jul 24, 14:52 UTCJul 24, 15:57 UTC1h 5m
2026-07-24 SWA801 BOS → BWI Jul 24, 12:45 UTCJul 24, 13:35 UTC50m
2026-07-24 SWA4814 MIA → DEN Jul 24, 10:45 UTCJul 24, 11:25 UTC40m
2026-07-24 SWA1419 CVG → MDW Jul 24, 03:25 UTCJul 24, 04:10 UTC45m
2026-07-23 SWA1795 RSW → BDL Jul 23, 22:55 UTCJul 24, 02:05 UTC3h 10m
2026-07-23 SWA1795 RSW → BDL Jul 23, 17:45 UTCJul 23, 21:45 UTC4h 0m
2026-07-23 SWA1795 RSW → BDL Jul 23, 15:30 UTCJul 23, 16:40 UTC1h 10m
2026-07-23 SWA4051 TPA → GRR Jul 23, 12:50 UTCJul 23, 14:00 UTC1h 10m
2026-07-23 SWA490 LAX → OAK Jul 23, 04:15 UTCJul 23, 04:50 UTC35m
2026-07-23 SWA490 LAX → OAK Jul 23, 00:55 UTCJul 23, 02:20 UTC1h 25m
2026-07-22 SWA3965 ORD → DEN Jul 22, 22:05 UTCJul 22, 23:35 UTC1h 30m
2026-07-22 SWA3965 ORD → DEN Jul 22, 22:03 UTCJul 22, 23:34 UTC1h 31m
2026-07-22 SWA881 SJD → HOU Jul 22, 14:15 UTCJul 22, 20:25 UTC6h 10m
2026-07-22 SWA3869 DEN → SAN Jul 22, 00:35 UTCJul 22, 01:20 UTC45m
2026-07-21 SWA3869 DEN → SAN Jul 21, 22:45 UTCJul 21, 23:55 UTC1h 10m
2026-07-21 SWA3869 DEN → SAN Jul 21, 20:45 UTCJul 21, 21:45 UTC1h 0m
2026-07-21 SWA1430 DEN → PDX Jul 21, 18:20 UTCJul 21, 19:35 UTC1h 15m
2026-07-21 SWA1430 DEN → PDX Jul 21, 15:35 UTCJul 21, 17:10 UTC1h 35m
2026-07-21 SWA1106 SAN → SJC Jul 21, 12:25 UTCJul 21, 14:35 UTC2h 10m
2026-07-21 SWA736 BOS → BWI Jul 21, 03:00 UTCJul 21, 04:00 UTC1h 0m
2026-07-21 SWA736 BOS → BWI Jul 21, 02:57 UTCJul 21, 03:54 UTC57m
2026-07-21 SWA4361 FLL → ORD Jul 21, 01:00 UTCJul 21, 02:05 UTC1h 5m
2026-07-20 SWA1665 BUR → OAK Jul 20, 22:30 UTCJul 20, 23:10 UTC40m
2026-07-20 SWA1665 BUR → OAK Jul 20, 18:30 UTCJul 20, 21:45 UTC3h 15m
2026-07-20 SWA690 - Jul 20, 15:30 UTCJul 20, 16:45 UTC1h 15m
2026-07-20 SWA690 - Jul 20, 13:30 UTCJul 20, 14:40 UTC1h 10m
2026-07-20 SWA3388 ABQ → MDW Jul 20, 10:50 UTCJul 20, 11:25 UTC35m
2026-07-20 SWA1125 LGB → SJC Jul 20, 01:45 UTCJul 20, 02:50 UTC1h 5m
2026-07-20 SWA889 BUR → OAK Jul 20, 00:30 UTCJul 20, 00:50 UTC20m
2026-07-19 SWA889 BUR → OAK Jul 19, 22:35 UTCJul 20, 00:30 UTC1h 55m
2026-07-19 SWA889 BUR → OAK Jul 19, 22:35 UTCJul 20, 00:15 UTC1h 40m
2026-07-19 SWA3995 MCO → PHL Jul 19, 17:55 UTCJul 19, 20:40 UTC2h 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 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 Jul 26, 21:40 UTC.
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, SWA174, SWA1665.