Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A27AEE

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N259WN · BOEING 737-700 · operated by SOUTHWEST AIRLINES CO

Hex
A27AEE
Octal
50475356
Decimal
10,648,302
Country
US
Tail
N259WN
Type
B737
No current signal · last broadcast 4h ago
Flights observed
686
Distinct callsigns
20
Country
US
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S A27AEE.

Country allocation

The ICAO 24-bit address A27AEE 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
SWA1149 Southwest Airlines 7 2026-04-16
SWA866 Southwest Airlines 6 2026-05-24
SWA714 - 6 2026-06-21
SWA3816 - 6 2026-07-09
SWA2470 Southwest Airlines 5 2026-06-18
SWA487 Southwest Airlines 4 2026-04-17
SWA4724 - 4 2026-06-26
SWA3635 - 4 2026-07-14
SWA3536 Southwest Airlines 4 2026-06-30
SWA3528 Southwest Airlines 4 2026-05-27
SWA2330 Southwest Airlines 4 2026-04-20
SWA1753 Southwest Airlines 4 2026-05-26
SWA1530 - 4 2026-06-22
SWA1468 - 4 2026-07-12
SWA1343 Southwest Airlines 4 2026-05-26
SWA1327 Southwest Airlines 4 2026-04-14
SWA121 Southwest Airlines 4 2026-06-10
SWA1209 Southwest Airlines 4 2026-06-15
SWA980 Southwest Airlines 3 2026-05-16
SWA956 - 3 2026-07-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 SWA4213 STL → DTW Jul 15, 01:05 UTCJul 15, 02:15 UTC1h 10m
2026-07-14 SWA4213 DEN → STL Jul 14, 22:35 UTCJul 15, 00:20 UTC1h 44m
2026-07-14 SWA4213 BUR → DEN Jul 14, 19:40 UTCJul 14, 21:35 UTC1h 55m
2026-07-14 SWA3635 SFO → BUR Jul 14, 18:00 UTCJul 14, 18:50 UTC50m
2026-07-14 SWA827 BUR → SFO Jul 14, 16:20 UTCJul 14, 17:10 UTC50m
2026-07-14 SWA827 BUR → SFO Jul 14, 16:20 UTCJul 14, 17:09 UTC49m
2026-07-14 SWA2196 LAS → BUR Jul 14, 13:30 UTCJul 14, 14:10 UTC40m
2026-07-14 SWA2196 LAS → BUR Jul 14, 13:26 UTCJul 14, 14:09 UTC43m
2026-07-14 SWA799 BUR → LAS Jul 14, 04:45 UTCJul 14, 05:30 UTC45m
2026-07-14 SWA4228 SFO → BUR Jul 14, 03:20 UTCJul 14, 04:10 UTC50m
2026-07-13 SWA4779 AUS → SFO Jul 13, 23:15 UTCJul 14, 02:13 UTC2h 58m
2026-07-13 SWA4779 AUS → SFO Jul 13, 23:15 UTCJul 14, 02:25 UTC3h 10m
2026-07-13 SWA771 BUR → AUS Jul 13, 18:40 UTCJul 13, 21:25 UTC2h 45m
2026-07-13 SWA3764 SMF → BUR Jul 13, 16:45 UTCJul 13, 17:40 UTC55m
2026-07-13 SWA2503 LGB → SMF Jul 13, 14:05 UTCJul 13, 15:05 UTC1h 0m
2026-07-13 SWA2503 LGB → SMF Jul 13, 14:04 UTCJul 13, 15:01 UTC57m
2026-07-13 SWA3057 OAK → LGB Jul 13, 02:15 UTCJul 13, 03:25 UTC1h 10m
2026-07-13 SWA2388 - Jul 13, 00:15 UTCJul 13, 01:05 UTC50m
2026-07-12 SWA2388 - Jul 12, 22:25 UTCJul 12, 23:15 UTC50m
2026-07-12 SWA2421 - Jul 12, 20:10 UTCJul 12, 21:15 UTC1h 5m
2026-07-12 SWA2421 OAK → LAX Jul 12, 18:05 UTCJul 12, 19:05 UTC1h 0m
2026-07-12 SWA146 - Jul 12, 15:35 UTCJul 12, 17:01 UTC1h 25m
2026-07-12 SWA146 ABQ → PHX Jul 12, 13:45 UTCJul 12, 14:40 UTC55m
2026-07-12 SWA1468 DEN → ABQ Jul 12, 02:57 UTCJul 12, 03:45 UTC48m
2026-07-12 SWA1468 DEN → ABQ Jul 12, 03:01 UTCJul 12, 03:50 UTC50m
2026-07-11 SWA1743 - Jul 11, 23:10 UTCJul 12, 01:30 UTC2h 20m
2026-07-11 SWA1743 MSY → DEN Jul 11, 23:08 UTCJul 12, 01:29 UTC2h 22m
2026-07-11 SWA4038 TPA → MSY Jul 11, 20:20 UTCJul 11, 21:30 UTC1h 10m
2026-07-11 SWA4038 TPA → MSY Jul 11, 20:20 UTCJul 11, 21:30 UTC1h 10m
2026-07-11 SWA3172 - Jul 11, 15:50 UTCJul 11, 18:55 UTC3h 5m
2026-07-11 SWA4181 TPA → MHT Jul 11, 12:10 UTCJul 11, 14:45 UTC2h 35m
2026-07-11 SWA4181 TPA → MHT Jul 11, 12:07 UTCJul 11, 14:45 UTC2h 38m
2026-07-11 SWA4929 PIT → TPA Jul 11, 09:20 UTCJul 11, 11:10 UTC1h 50m
2026-07-11 SWA353 - Jul 11, 03:05 UTCJul 11, 04:55 UTC1h 50m
2026-07-10 SWA104 - Jul 10, 23:35 UTCJul 11, 01:55 UTC2h 20m
2026-07-10 SWA3192 - Jul 10, 20:10 UTCJul 10, 22:30 UTC2h 20m
2026-07-10 SWA1044 - Jul 10, 17:10 UTCJul 10, 19:10 UTC2h 0m
2026-07-10 SWA4584 - Jul 10, 13:15 UTCJul 10, 14:10 UTC55m
2026-07-10 SWA4584 ISP → BWI Jul 10, 13:14 UTCJul 10, 14:13 UTC59m
2026-07-10 SWA4816 - Jul 10, 11:25 UTCJul 10, 12:10 UTC45m
2026-07-10 SWA3143 - Jul 10, 04:55 UTCJul 10, 09:25 UTC4h 30m
2026-07-10 SWA271 - Jul 10, 02:20 UTCJul 10, 03:15 UTC55m
2026-07-10 SWA271 OAK → ONT Jul 10, 02:18 UTCJul 10, 03:14 UTC56m
2026-07-09 SWA3305 PHX → OAK Jul 9, 23:35 UTCJul 10, 01:10 UTC1h 35m
2026-07-09 SWA3816 SMF → PHX Jul 9, 21:05 UTCJul 9, 22:35 UTC1h 30m
2026-07-09 SWA1435 - Jul 9, 19:00 UTCJul 9, 20:10 UTC1h 10m
2026-07-09 SWA1435 - Jul 9, 15:10 UTCJul 9, 17:35 UTC2h 25m
2026-07-09 SWA1435 MCO → AUS Jul 9, 12:05 UTCJul 9, 14:20 UTC2h 15m
2026-07-09 SWA385 - Jul 9, 10:20 UTCJul 9, 10:45 UTC25m
2026-07-08 SWA4390 MDW → TPA Jul 8, 22:55 UTCJul 9, 01:05 UTC2h 10m

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 N259WN page for operator, model, and routing details .

Mode-S A27AEE frequently asked

What is Mode-S code A27AEE?
A27AEE is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N259WN.
Where is Mode-S A27AEE registered?
Mode-S code A27AEE 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 A27AEE broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A27AEE, octal 50475356, decimal 10,648,302.
What flights does A27AEE operate?
Mode-S A27AEE has broadcast 20 distinct callsigns, including SWA1149, SWA866, SWA714, SWA3816, SWA2470.