Apparatus

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sensors Mode-S transponder

A624AC

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N495WN · BOEING 737-700 · operated by SOUTHWEST AIRLINES CO

Hex
A624AC
Octal
51422254
Decimal
10,888,364
Country
US
Tail
N495WN
Type
B737
No current signal · last broadcast 2d ago
Flights observed
655
Distinct callsigns
20
Country
US
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S A624AC.

Country allocation

The ICAO 24-bit address A624AC 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
SWA2970 Southwest Airlines 7 2026-05-10
SWA3916 - 6 2026-04-14
SWA2705 Southwest Airlines 6 2026-05-10
SWA2314 - 6 2026-06-29
SWA136 Southwest Airlines 6 2026-04-29
SWA8501 - 5 2026-07-11
SWA3652 Southwest Airlines 5 2026-06-14
SWA301 Southwest Airlines 5 2026-04-18
SWA2759 Southwest Airlines 5 2026-05-22
SWA1291 Southwest Airlines 5 2026-05-16
SWA114 Southwest Airlines 5 2026-06-05
SWA684 - 4 2026-06-22
SWA600 - 4 2026-07-08
SWA539 - 4 2026-07-02
SWA4433 - 4 2026-06-23
SWA4055 Southwest Airlines 4 2026-04-30
SWA38 Southwest Airlines 4 2026-05-13
SWA3613 - 4 2026-04-15
SWA3563 - 4 2026-06-18
SWA3458 Southwest Airlines 4 2026-06-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-11 SWA8501 OAK → PAE Jul 11, 13:02 UTCJul 11, 14:26 UTC1h 24m
2026-07-11 SWA8501 OAK → PAE Jul 11, 13:05 UTCJul 11, 14:30 UTC1h 25m
2026-07-11 SWA4270 LAS → OAK Jul 11, 03:10 UTCJul 11, 04:15 UTC1h 5m
2026-07-11 SWA3602 SBA → LAS Jul 11, 01:05 UTCJul 11, 01:55 UTC50m
2026-07-10 SWA2002 LAS → SBA Jul 10, 23:15 UTCJul 11, 00:05 UTC50m
2026-07-10 SWA2002 - Jul 10, 19:35 UTCJul 10, 22:05 UTC2h 30m
2026-07-10 SWA1711 - Jul 10, 14:45 UTCJul 10, 17:55 UTC3h 10m
2026-07-10 SWA4862 - Jul 10, 10:55 UTCJul 10, 13:05 UTC2h 10m
2026-07-10 SWA4862 MCI → LGA Jul 10, 10:53 UTCJul 10, 13:07 UTC2h 15m
2026-07-10 SWA4946 - Jul 10, 04:50 UTCJul 10, 07:25 UTC2h 35m
2026-07-10 SWA556 - Jul 10, 01:45 UTCJul 10, 03:15 UTC1h 30m
2026-07-10 SWA556 MDW → LGA Jul 10, 01:40 UTCJul 10, 03:21 UTC1h 41m
2026-07-09 SWA556 - Jul 9, 20:50 UTCJul 9, 21:30 UTC40m
2026-07-09 SWA2083 - Jul 9, 19:00 UTCJul 9, 19:40 UTC40m
2026-07-09 SWA1702 - Jul 9, 16:50 UTCJul 9, 17:50 UTC1h 0m
2026-07-09 SWA1702 - Jul 9, 15:35 UTCJul 9, 15:55 UTC20m
2026-07-09 SWA1384 - Jul 9, 12:00 UTCJul 9, 13:50 UTC1h 50m
2026-07-09 SWA1384 JAX → MDW Jul 9, 11:55 UTCJul 9, 13:48 UTC1h 53m
2026-07-09 SWA4624 - Jul 9, 01:30 UTCJul 9, 02:45 UTC1h 15m
2026-07-08 SWA2606 MCO → BNA Jul 8, 21:35 UTCJul 8, 23:10 UTC1h 35m
2026-07-08 SWA599 - Jul 8, 19:25 UTCJul 8, 20:10 UTC45m
2026-07-08 SWA600 - Jul 8, 17:15 UTCJul 8, 17:45 UTC30m
2026-07-08 SWA600 MCO → NAS Jul 8, 17:11 UTCJul 8, 18:01 UTC50m
2026-07-08 SWA3535 - Jul 8, 13:10 UTCJul 8, 15:20 UTC2h 10m
2026-07-07 SWA3879 - Jul 7, 23:00 UTCJul 8, 01:15 UTC2h 15m
2026-07-07 SWA3877 - Jul 7, 19:50 UTCJul 7, 22:10 UTC2h 20m
2026-07-07 SWA331 - Jul 7, 17:00 UTCJul 7, 17:50 UTC50m
2026-07-07 SWA279 - Jul 7, 15:20 UTCJul 7, 16:05 UTC45m
2026-07-07 SWA3402 - Jul 7, 13:00 UTCJul 7, 14:10 UTC1h 10m
2026-07-07 SWA3402 PVD → BWI Jul 7, 12:59 UTCJul 7, 14:07 UTC1h 9m
2026-07-07 SWA4821 BWI → PVD Jul 7, 11:00 UTCJul 7, 11:45 UTC45m
2026-07-07 SWA4821 BWI → PVD Jul 7, 10:55 UTCJul 7, 11:51 UTC56m
2026-07-07 SWA2206 MDW → MCO Jul 7, 01:20 UTCJul 7, 05:30 UTC4h 10m
2026-07-07 SWA2206 MDW → MCO Jul 7, 01:18 UTCJul 7, 05:23 UTC4h 5m
2026-07-06 SWA157 - Jul 6, 21:15 UTCJul 6, 22:45 UTC1h 30m
2026-07-06 SWA722 DEN → SJD Jul 6, 16:40 UTCJul 6, 17:40 UTC1h 0m
2026-07-06 SWA1901 - Jul 6, 14:20 UTCJul 6, 14:50 UTC30m
2026-07-06 SWA3086 - Jul 6, 00:45 UTCJul 6, 01:00 UTC15m
2026-07-05 SWA2886 PHX → DEN Jul 5, 22:15 UTCJul 5, 23:40 UTC1h 25m
2026-07-05 SWA2886 PHX → DEN Jul 5, 22:12 UTCJul 5, 23:38 UTC1h 27m
2026-07-05 SWA3585 - Jul 5, 20:10 UTCJul 5, 21:05 UTC55m
2026-07-05 SWA2298 LAS → ONT Jul 5, 18:30 UTCJul 5, 19:05 UTC35m
2026-07-05 SWA2298 SJC → LAS Jul 5, 16:30 UTCJul 5, 17:30 UTC1h 0m
2026-07-05 SWA3536 MCO → MKE Jul 5, 14:45 UTCJul 5, 15:40 UTC55m
2026-07-05 SWA3536 MCO → MKE Jul 5, 14:40 UTCJul 5, 15:39 UTC59m
2026-07-04 SWA2498 - Jul 4, 19:55 UTCJul 4, 21:55 UTC2h 0m
2026-07-04 SWA1201 - Jul 4, 17:05 UTCJul 4, 18:55 UTC1h 50m
2026-07-04 SWA2943 - Jul 4, 14:35 UTCJul 4, 15:45 UTC1h 10m
2026-07-04 SWA2943 SMF → SAN Jul 4, 14:35 UTCJul 4, 15:43 UTC1h 8m
2026-07-04 SWA8512 OAK → SMF Jul 4, 13:15 UTCJul 4, 13:35 UTC20m

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 N495WN page for operator, model, and routing details .

Mode-S A624AC frequently asked

What is Mode-S code A624AC?
A624AC is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N495WN.
Where is Mode-S A624AC registered?
Mode-S code A624AC 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 A624AC broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A624AC, octal 51422254, decimal 10,888,364.
What flights does A624AC operate?
Mode-S A624AC has broadcast 20 distinct callsigns, including SWA2970, SWA3916, SWA2705, SWA2314, SWA136.