Apparatus

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sensors Mode-S transponder

A2FEE9

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N292WN · BOEING 737-700 · operated by SOUTHWEST AIRLINES CO

Hex
A2FEE9
Octal
50577351
Decimal
10,682,089
Country
US
Tail
N292WN
Type
B737
Transponder active on ground
Flights observed
742
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:15 UTC

Last known position

Most recent position reported by Mode-S A2FEE9.

Country allocation

The ICAO 24-bit address A2FEE9 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
SWA2233 Southwest Airlines 6 2026-04-17
SWA4013 - 5 2026-06-16
SWA3791 - 5 2026-07-09
SWA1583 - 5 2026-07-16
SWA1332 - 5 2026-07-12
SWA989 Southwest Airlines 4 2026-06-03
SWA962 - 4 2026-07-13
SWA949 Southwest Airlines 4 2026-06-09
SWA889 Southwest Airlines 4 2026-04-28
SWA4677 Southwest Airlines 4 2026-04-26
SWA4613 Southwest Airlines 4 2026-06-04
SWA4206 - 4 2026-07-13
SWA4082 Southwest Airlines 4 2026-04-16
SWA4007 Southwest Airlines 4 2026-05-10
SWA356 - 4 2026-07-16
SWA3338 - 4 2026-07-15
SWA3329 - 4 2026-07-10
SWA3169 - 4 2026-07-08
SWA2997 - 4 2026-06-28
SWA2921 Southwest Airlines 4 2026-04-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA975 LAS → BUR Jul 26, 22:00 UTCJul 26, 22:15 UTC15m
2026-07-26 SWA4063 OGG → HNL Jul 26, 17:30 UTCJul 26, 19:30 UTC2h 0m
2026-07-26 SWA1129 AUS → SJC Jul 26, 14:20 UTCJul 26, 16:05 UTC1h 45m
2026-07-26 SWA4695 PDX → SJC Jul 26, 12:20 UTCJul 26, 13:15 UTC55m
2026-07-25 SWA246 SJC → HNL Jul 25, 17:50 UTCJul 25, 18:50 UTC1h 0m
2026-07-25 SWA1143 FLL → MSY Jul 25, 14:15 UTCJul 25, 16:20 UTC2h 5m
2026-07-25 SWA1415 MCO → BWI Jul 25, 11:25 UTCJul 25, 13:25 UTC2h 0m
2026-07-25 SWA1973 BWI → ORD Jul 25, 02:00 UTCJul 25, 04:05 UTC2h 5m
2026-07-25 SWA1973 BWI → ORD Jul 25, 01:59 UTCJul 25, 04:08 UTC2h 9m
2026-07-24 SWA3777 PHX → DAL Jul 24, 23:20 UTCJul 25, 01:10 UTC1h 50m
2026-07-24 SWA758 OAK → LAX Jul 24, 19:15 UTCJul 24, 20:00 UTC45m
2026-07-24 SWA8503 SJC → LAS Jul 24, 16:20 UTCJul 24, 17:50 UTC1h 30m
2026-07-24 SWA8503 SJC → LAS Jul 24, 16:18 UTCJul 24, 17:44 UTC1h 26m
2026-07-24 SWA179 MSY → DEN Jul 24, 14:10 UTCJul 24, 14:45 UTC35m
2026-07-24 SWA179 MSY → DEN Jul 24, 14:07 UTCJul 24, 14:45 UTC38m
2026-07-24 SWA3883 DAL → STL Jul 24, 01:20 UTCJul 24, 02:25 UTC1h 5m
2026-07-24 SWA3883 DAL → STL Jul 24, 01:16 UTCJul 24, 02:25 UTC1h 9m
2026-07-23 SWA4341 STL → DCA Jul 23, 23:25 UTCJul 24, 00:05 UTC40m
2026-07-23 SWA2812 DAL → SRQ Jul 23, 21:25 UTCJul 23, 22:25 UTC1h 0m
2026-07-23 SWA4996 RNO → PHX Jul 23, 18:05 UTCJul 23, 20:00 UTC1h 55m
2026-07-23 SWA4996 RNO → PHX Jul 23, 18:03 UTCJul 23, 19:53 UTC1h 51m
2026-07-23 SWA3664 DAL → LGA Jul 23, 14:00 UTCJul 23, 16:55 UTC2h 55m
2026-07-23 SWA3012 BUR → SMF Jul 23, 10:40 UTCJul 23, 12:20 UTC1h 40m
2026-07-23 SWA2695 OAK → BUR Jul 23, 03:25 UTCJul 23, 03:55 UTC30m
2026-07-23 SWA2695 OAK → BUR Jul 23, 03:20 UTCJul 23, 03:48 UTC28m
2026-07-22 SWA428 LAS → BUR Jul 22, 22:55 UTCJul 23, 01:10 UTC2h 15m
2026-07-22 SWA428 LAS → BUR Jul 22, 22:50 UTCJul 23, 00:51 UTC2h 1m
2026-07-22 SWA428 LAS → BUR Jul 22, 21:10 UTCJul 22, 21:55 UTC45m
2026-07-22 SWA1665 BUR → OAK Jul 22, 19:20 UTCJul 22, 20:00 UTC40m
2026-07-22 SWA344 BDL → BWI Jul 22, 17:55 UTCJul 22, 18:25 UTC30m
2026-07-22 SWA582 HOU → LGA Jul 22, 15:40 UTCJul 22, 16:35 UTC55m
2026-07-22 SWA582 HOU → LGA Jul 22, 15:35 UTCJul 22, 16:29 UTC54m
2026-07-22 SWA582 HOU → LGA Jul 22, 13:15 UTCJul 22, 14:40 UTC1h 25m
2026-07-22 SWA1894 BDL → BNA Jul 22, 11:10 UTCJul 22, 11:20 UTC10m
2026-07-22 SWA1894 BDL → BNA Jul 22, 10:40 UTCJul 22, 11:15 UTC36m
2026-07-22 SWA4113 LAS → SJC Jul 22, 03:35 UTCJul 22, 04:05 UTC30m
2026-07-22 SWA4113 LAS → SJC Jul 22, 03:31 UTCJul 22, 03:57 UTC26m
2026-07-21 SWA163 - Jul 21, 13:20 UTCJul 21, 15:15 UTC1h 55m
2026-07-21 SWA4248 - Jul 21, 02:55 UTCJul 21, 04:20 UTC1h 25m
2026-07-21 SWA4248 MDW → ALB Jul 21, 02:53 UTCJul 21, 04:20 UTC1h 27m
2026-07-20 SWA2658 DTW → MDW Jul 20, 23:35 UTCJul 21, 01:54 UTC2h 19m
2026-07-20 SWA2658 DTW → MDW Jul 20, 23:35 UTCJul 21, 02:00 UTC2h 25m
2026-07-20 SWA2034 - Jul 20, 17:30 UTCJul 20, 20:10 UTC2h 40m
2026-07-20 SWA2034 - Jul 20, 13:40 UTCJul 20, 16:30 UTC2h 50m
2026-07-20 SWA3345 LAS → SAN Jul 20, 06:05 UTCJul 20, 06:50 UTC45m
2026-07-20 SWA3345 LAS → SAN Jul 20, 06:05 UTCJul 20, 06:49 UTC44m
2026-07-20 SWA1435 OGG → SJC Jul 20, 01:55 UTCJul 20, 02:30 UTC35m
2026-07-20 SWA191 ONT → SJC Jul 20, 00:30 UTCJul 20, 00:55 UTC25m
2026-07-19 SWA157 MDW → STL Jul 19, 16:05 UTCJul 19, 21:55 UTC5h 50m
2026-07-18 SWA4493 - Jul 18, 02:14 UTCJul 18, 04:15 UTC2h 1m

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 N292WN page for operator, model, and routing details .

Mode-S A2FEE9 frequently asked

What is Mode-S code A2FEE9?
A2FEE9 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N292WN.
Where is Mode-S A2FEE9 registered?
Mode-S code A2FEE9 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 A2FEE9 broadcasting right now?
Mode-S A2FEE9 is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A2FEE9, octal 50577351, decimal 10,682,089.
What flights does A2FEE9 operate?
Mode-S A2FEE9 has broadcast 20 distinct callsigns, including SWA2233, SWA4013, SWA3791, SWA1583, SWA1332.