Apparatus

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sensors Mode-S transponder

A2E9FD

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N287WN · BOEING 737-700 · operated by SOUTHWEST AIRLINES CO

Hex
A2E9FD
Octal
50564775
Decimal
10,676,733
Country
US
Tail
N287WN
Type
B737
No current signal · last broadcast 5h ago
Flights observed
691
Distinct callsigns
20
Country
US
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S A2E9FD.

Country allocation

The ICAO 24-bit address A2E9FD 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
SWA38 Southwest Airlines 6 2026-05-12
SWA300 - 5 2026-07-03
SWA2268 Southwest Airlines 5 2026-05-11
SWA1676 - 5 2026-06-27
SWA4144 Southwest Airlines 4 2026-05-13
SWA3940 Southwest Airlines 4 2026-06-10
SWA3399 Southwest Airlines 4 2026-05-05
SWA3212 - 4 2026-07-04
SWA3102 Southwest Airlines 4 2026-05-06
SWA30 Southwest Airlines 4 2026-04-30
SWA2824 - 4 2026-07-14
SWA2715 Southwest Airlines 4 2026-04-13
SWA2012 Southwest Airlines 4 2026-06-30
SWA1680 Southwest Airlines 4 2026-06-08
SWA1372 Southwest Airlines 4 2026-05-06
SWA1283 Southwest Airlines 4 2026-05-16
SWA1252 Southwest Airlines 4 2026-04-17
SWA963 Southwest Airlines 3 2026-06-10
SWA775 Southwest Airlines 3 2026-05-28
SWA671 - 3 2026-06-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 SWA654 STL → DCA Jul 15, 01:10 UTCJul 15, 02:50 UTC1h 40m
2026-07-14 SWA654 - Jul 14, 22:30 UTCJul 15, 00:00 UTC1h 29m
2026-07-14 SWA654 - Jul 14, 20:15 UTCJul 14, 21:30 UTC1h 15m
2026-07-14 SWA2824 - Jul 14, 17:50 UTCJul 14, 19:00 UTC1h 10m
2026-07-14 SWA2824 - Jul 14, 15:30 UTCJul 14, 16:35 UTC1h 5m
2026-07-14 SWA163 - Jul 14, 12:05 UTCJul 14, 13:45 UTC1h 40m
2026-07-14 SWA4248 - Jul 14, 00:10 UTCJul 14, 01:45 UTC1h 35m
2026-07-14 SWA4248 MDW → ALB Jul 14, 00:06 UTCJul 14, 01:41 UTC1h 35m
2026-07-13 SWA2658 MCO → MDW Jul 13, 20:30 UTCJul 13, 22:50 UTC2h 20m
2026-07-13 SWA2658 MCO → MDW Jul 13, 20:29 UTCJul 13, 22:48 UTC2h 20m
2026-07-13 SWA1440 DCA → MCO Jul 13, 17:30 UTCJul 13, 19:20 UTC1h 50m
2026-07-13 SWA311 - Jul 13, 14:45 UTCJul 13, 16:15 UTC1h 30m
2026-07-13 SWA1223 - Jul 13, 05:01 UTCJul 13, 05:20 UTC20m
2026-07-13 SWA2290 IND → MDW Jul 13, 00:30 UTCJul 13, 01:10 UTC40m
2026-07-12 SWA3877 MDW → IND Jul 12, 16:40 UTCJul 12, 17:10 UTC30m
2026-07-12 SWA3877 MDW → IND Jul 12, 16:40 UTCJul 12, 17:18 UTC38m
2026-07-12 SWA1270 ATL → MDW Jul 12, 12:20 UTCJul 12, 13:45 UTC1h 25m
2026-07-12 SWA3997 TPA → ATL Jul 12, 00:50 UTCJul 12, 01:50 UTC1h 0m
2026-07-12 SWA3997 TPA → ATL Jul 12, 00:48 UTCJul 12, 01:51 UTC1h 3m
2026-07-11 SWA807 - Jul 11, 20:15 UTCJul 11, 22:50 UTC2h 35m
2026-07-11 SWA807 - Jul 11, 18:15 UTCJul 11, 19:15 UTC1h 0m
2026-07-11 SWA8 - Jul 11, 15:05 UTCJul 11, 16:55 UTC1h 50m
2026-07-11 SWA8 DAL → MDW Jul 11, 15:05 UTCJul 11, 16:51 UTC1h 46m
2026-07-11 SWA3492 SAN → DAL Jul 11, 02:35 UTCJul 11, 05:25 UTC2h 50m
2026-07-11 SWA3492 SAN → DAL Jul 11, 02:35 UTCJul 11, 05:08 UTC2h 33m
2026-07-11 SWA3652 - Jul 11, 00:30 UTCJul 11, 01:35 UTC1h 5m
2026-07-10 SWA2272 DEN → BNA Jul 10, 21:25 UTCJul 10, 22:40 UTC1h 15m
2026-07-10 SWA2272 DEN → BNA Jul 10, 19:35 UTCJul 10, 20:15 UTC40m
2026-07-10 SWA2272 DEN → BNA Jul 10, 16:50 UTCJul 10, 17:40 UTC50m
2026-07-10 SWA3179 LAS → RNO Jul 10, 14:55 UTCJul 10, 15:50 UTC55m
2026-07-10 SWA3179 - Jul 10, 14:55 UTCJul 10, 15:45 UTC50m
2026-07-10 SWA1842 - Jul 10, 12:40 UTCJul 10, 13:25 UTC45m
2026-07-10 SWA948 - Jul 10, 05:45 UTCJul 10, 06:50 UTC1h 5m
2026-07-10 SWA4521 ABQ → SAN Jul 10, 03:20 UTCJul 10, 04:40 UTC1h 20m
2026-07-09 SWA237 - Jul 9, 23:30 UTCJul 10, 01:20 UTC1h 50m
2026-07-09 SWA2422 UDD → OAK Jul 9, 21:30 UTCJul 9, 22:35 UTC1h 5m
2026-07-09 SWA2422 - Jul 9, 19:55 UTCJul 9, 20:20 UTC25m
2026-07-09 SWA4133 - Jul 9, 18:00 UTCJul 9, 18:50 UTC50m
2026-07-09 SWA4133 - Jul 9, 16:15 UTCJul 9, 16:50 UTC35m
2026-07-09 SWA3858 BWI → BOS Jul 9, 14:05 UTCJul 9, 15:00 UTC55m
2026-07-09 SWA1590 LAS → SNA Jul 9, 04:40 UTCJul 9, 05:20 UTC40m
2026-07-09 SWA4136 - Jul 9, 02:05 UTCJul 9, 02:55 UTC50m
2026-07-08 SWA3331 - Jul 8, 23:35 UTCJul 9, 00:55 UTC1h 20m
2026-07-08 SWA3356 SLC → OAK Jul 8, 21:40 UTCJul 8, 22:35 UTC55m
2026-07-08 SWA3356 SLC → OAK Jul 8, 19:40 UTCJul 8, 20:50 UTC1h 10m
2026-07-08 SWA2325 - Jul 8, 17:35 UTCJul 8, 18:45 UTC1h 10m
2026-07-08 SWA2325 SAN → SMF Jul 8, 17:30 UTCJul 8, 18:40 UTC1h 10m
2026-07-08 SWA2325 - Jul 8, 15:50 UTCJul 8, 16:40 UTC50m
2026-07-08 SWA321 AUS → LAS Jul 8, 11:20 UTCJul 8, 13:40 UTC2h 20m
2026-07-08 SWA1481 DEN → AUS Jul 8, 04:14 UTCJul 8, 05:55 UTC1h 41m

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 N287WN page for operator, model, and routing details .

Mode-S A2E9FD frequently asked

What is Mode-S code A2E9FD?
A2E9FD is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N287WN.
Where is Mode-S A2E9FD registered?
Mode-S code A2E9FD 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 A2E9FD broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A2E9FD, octal 50564775, decimal 10,676,733.
What flights does A2E9FD operate?
Mode-S A2E9FD has broadcast 20 distinct callsigns, including SWA38, SWA300, SWA2268, SWA1676, SWA4144.