Apparatus

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sensors Mode-S transponder

A742EC

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N567WN · BOEING 737-700 · operated by SOUTHWEST AIRLINES CO

Hex
A742EC
Octal
51641354
Decimal
10,961,644
Country
US
Tail
N567WN
Type
B737
Broadcasting now · callsign SWA1781 · 22,000 ft
Flights observed
663
Distinct callsigns
20
Country
US
Last broadcast
13h ago

Current position

A742EC is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A742EC 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
SWA800 - 6 2026-07-12
SWA2384 - 6 2026-06-29
SWA203 Southwest Airlines 6 2026-05-10
SWA4724 - 5 2026-07-07
SWA410 - 5 2026-06-27
SWA2168 Southwest Airlines 5 2026-05-25
SWA2034 - 5 2026-06-18
SWA1850 - 5 2026-06-23
SWA989 - 4 2026-06-21
SWA965 - 4 2026-06-13
SWA807 Southwest Airlines 4 2026-05-28
SWA4227 Southwest Airlines 4 2026-05-26
SWA3538 Southwest Airlines 4 2026-06-09
SWA3472 Southwest Airlines 4 2026-04-16
SWA2779 Southwest Airlines 4 2026-06-06
SWA2162 - 4 2026-04-13
SWA2131 Southwest Airlines 4 2026-04-14
SWA2008 Southwest Airlines 4 2026-06-12
SWA1450 - 4 2026-07-01
SWA1155 Southwest Airlines 4 2026-05-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SWA4200 - Jul 14, 23:45 UTCJul 15, 00:25 UTC40m
2026-07-14 SWA4200 MDW → DTW Jul 14, 23:41 UTCJul 15, 00:21 UTC40m
2026-07-14 SWA448 STL → MDW Jul 14, 21:30 UTCJul 14, 22:15 UTC45m
2026-07-14 SWA448 STL → MDW Jul 14, 21:26 UTCJul 14, 22:10 UTC45m
2026-07-14 SWA1412 DAL → STL Jul 14, 18:50 UTCJul 14, 20:20 UTC1h 30m
2026-07-14 SWA3825 - Jul 14, 16:20 UTCJul 14, 17:40 UTC1h 20m
2026-07-14 SWA3825 BHM → DAL Jul 14, 16:16 UTCJul 14, 17:39 UTC1h 23m
2026-07-14 SWA3825 - Jul 14, 14:05 UTCJul 14, 15:10 UTC1h 5m
2026-07-14 SWA2739 DCA → TPA Jul 14, 11:05 UTCJul 14, 12:55 UTC1h 50m
2026-07-14 SWA4888 - Jul 14, 01:15 UTCJul 14, 03:50 UTC2h 35m
2026-07-13 SWA514 - Jul 13, 17:10 UTCJul 13, 23:15 UTC6h 5m
2026-07-13 SWA3267 PHX → DEN Jul 13, 07:35 UTCJul 13, 09:00 UTC1h 25m
2026-07-13 SWA3526 - Jul 13, 05:31 UTCJul 13, 06:45 UTC1h 15m
2026-07-13 SWA3526 SAN → PHX Jul 13, 05:26 UTCJul 13, 06:49 UTC1h 24m
2026-07-13 SWA3994 - Jul 13, 00:50 UTCJul 13, 02:20 UTC1h 30m
2026-07-13 SWA3994 STS → SAN Jul 13, 00:47 UTCJul 13, 02:16 UTC1h 30m
2026-07-12 SWA818 - Jul 12, 22:10 UTCJul 12, 23:15 UTC1h 5m
2026-07-12 SWA818 BUR → STS Jul 12, 22:07 UTCJul 12, 23:01 UTC54m
2026-07-12 SWA3638 SFO → BUR Jul 12, 20:15 UTCJul 12, 21:10 UTC55m
2026-07-12 SWA1191 - Jul 12, 18:05 UTCJul 12, 19:05 UTC1h 0m
2026-07-12 SWA1191 LAS → SAN Jul 12, 16:05 UTCJul 12, 16:50 UTC45m
2026-07-12 SWA235 - Jul 12, 14:10 UTCJul 12, 15:01 UTC50m
2026-07-12 SWA800 - Jul 12, 00:10 UTCJul 12, 02:50 UTC2h 40m
2026-07-12 SWA800 AUS → BUR Jul 12, 00:09 UTCJul 12, 02:41 UTC2h 32m
2026-07-11 SWA800 - Jul 11, 21:05 UTCJul 11, 23:15 UTC2h 10m
2026-07-11 SWA800 RDU → MDW Jul 11, 18:25 UTCJul 11, 20:00 UTC1h 35m
2026-07-11 SWA800 - Jul 11, 16:35 UTCJul 11, 17:20 UTC45m
2026-07-11 SWA800 - Jul 11, 13:40 UTCJul 11, 15:30 UTC1h 50m
2026-07-11 SWA2342 - Jul 11, 11:10 UTCJul 11, 12:35 UTC1h 25m
2026-07-11 SWA1863 FLL → IND Jul 11, 01:25 UTCJul 11, 03:40 UTC2h 15m
2026-07-10 SWA4222 DEN → FLL Jul 10, 21:05 UTCJul 11, 00:35 UTC3h 30m
2026-07-10 SWA187 - Jul 10, 18:10 UTCJul 10, 20:05 UTC1h 55m
2026-07-10 SWA187 - Jul 10, 16:25 UTCJul 10, 17:05 UTC40m
2026-07-10 SWA785 BUR → LAS Jul 10, 14:30 UTCJul 10, 15:15 UTC45m
2026-07-10 SWA2163 LAS → BUR Jul 10, 04:05 UTCJul 10, 04:45 UTC40m
2026-07-10 SWA2163 LAS → BUR Jul 10, 04:02 UTCJul 10, 04:48 UTC46m
2026-07-10 SWA3786 SMF → LAS Jul 10, 02:05 UTCJul 10, 03:05 UTC1h 0m
2026-07-09 SWA3871 - Jul 9, 23:35 UTCJul 10, 00:45 UTC1h 10m
2026-07-09 SWA3871 SNA → SMF Jul 9, 23:32 UTCJul 10, 00:40 UTC1h 8m
2026-07-09 SWA2738 - Jul 9, 20:20 UTCJul 9, 21:25 UTC1h 5m
2026-07-09 SWA1105 - Jul 9, 17:30 UTCJul 9, 18:40 UTC1h 10m
2026-07-09 SWA3084 - Jul 9, 13:55 UTCJul 9, 14:55 UTC1h 0m
2026-07-09 SWA2890 SEA → OAK Jul 9, 03:25 UTCJul 9, 05:00 UTC1h 35m
2026-07-09 SWA4717 LAS → SEA Jul 9, 00:10 UTCJul 9, 02:20 UTC2h 10m
2026-07-09 SWA4717 LAS → SEA Jul 9, 00:05 UTCJul 9, 02:05 UTC2h 0m
2026-07-08 SWA3992 - Jul 8, 21:35 UTCJul 8, 22:40 UTC1h 5m
2026-07-08 SWA972 - Jul 8, 19:15 UTCJul 8, 20:15 UTC1h 0m
2026-07-08 SWA972 BUR → STS Jul 8, 19:15 UTCJul 8, 20:19 UTC1h 4m
2026-07-08 SWA199 PHX → BUR Jul 8, 17:15 UTCJul 8, 18:20 UTC1h 5m
2026-07-08 SWA3521 - Jul 8, 15:20 UTCJul 8, 16:20 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 N567WN page for operator, model, and routing details .

Mode-S A742EC frequently asked

What is Mode-S code A742EC?
A742EC is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N567WN.
Where is Mode-S A742EC registered?
Mode-S code A742EC 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 A742EC broadcasting right now?
Yes. Mode-S A742EC is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A742EC, octal 51641354, decimal 10,961,644.
What flights does A742EC operate?
Mode-S A742EC has broadcast 20 distinct callsigns, including SWA800, SWA2384, SWA203, SWA4724, SWA410.