Apparatus

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sensors Mode-S transponder

ABC432

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8573Z · BOEING 737-800 · operated by SOUTHWEST AIRLINES CO

Hex
ABC432
Octal
52742062
Decimal
11,256,882
Country
US
Tail
N8573Z
Type
B738
Broadcasting now · callsign SWA2626 · 36,000 ft
Flights observed
772
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:30 UTC

Current position

ABC432 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address ABC432 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
SWA2311 - 5 2026-07-06
SWA1348 - 5 2026-07-14
SWA365 Southwest Airlines 4 2026-06-13
SWA3397 Southwest Airlines 4 2026-06-07
SWA2792 Southwest Airlines 4 2026-06-16
SWA2074 Southwest Airlines 4 2026-06-11
SWA1682 - 4 2026-07-04
SWA1141 Southwest Airlines 4 2026-05-16
SWA998 Southwest Airlines 3 2026-04-30
SWA956 Southwest Airlines 3 2026-05-21
SWA884 Southwest Airlines 3 2026-05-31
SWA857 Southwest Airlines 3 2026-05-09
SWA768 - 3 2026-06-19
SWA759 Southwest Airlines 3 2026-04-15
SWA634 Southwest Airlines 3 2026-07-23
SWA477 - 3 2026-07-18
SWA451 Southwest Airlines 3 2026-05-06
SWA4445 Southwest Airlines 3 2026-04-14
SWA4371 Southwest Airlines 3 2026-06-03
SWA4194 Southwest Airlines 3 2026-06-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA26 HOU → DAL Jul 26, 20:40 UTCJul 26, 22:30 UTC1h 50m
2026-07-26 SWA26 HOU → DAL Jul 26, 18:15 UTCJul 26, 18:55 UTC40m
2026-07-26 SWA1849 SAN → SJC Jul 26, 14:10 UTCJul 26, 17:00 UTC2h 50m
2026-07-26 SWA1089 HNL → SJC Jul 26, 00:20 UTCJul 26, 05:00 UTC4h 40m
2026-07-25 SWA905 MBJ → BWI Jul 25, 20:10 UTCJul 25, 22:30 UTC2h 20m
2026-07-25 SWA905 MBJ → BWI Jul 25, 19:23 UTCJul 25, 22:25 UTC3h 3m
2026-07-25 SWA918 BWI → MBJ Jul 25, 15:10 UTCJul 25, 17:10 UTC2h 0m
2026-07-25 SWA918 BWI → MBJ Jul 25, 15:07 UTCJul 25, 17:59 UTC2h 52m
2026-07-25 SWA1181 BNA → MDW Jul 25, 11:30 UTCJul 25, 13:05 UTC1h 35m
2026-07-25 SWA4438 ONT → OAK Jul 25, 01:10 UTCJul 25, 03:00 UTC1h 50m
2026-07-25 SWA4438 ONT → OAK Jul 25, 01:09 UTCJul 25, 02:50 UTC1h 41m
2026-07-24 SWA3561 SJC → HNL Jul 24, 21:05 UTCJul 25, 00:05 UTC3h 0m
2026-07-24 SWA4045 TPA → MSY Jul 24, 17:40 UTCJul 24, 19:45 UTC2h 5m
2026-07-24 SWA650 BWI → AUS Jul 24, 15:00 UTCJul 24, 16:40 UTC1h 40m
2026-07-24 SWA872 MDW → RDU Jul 24, 12:20 UTCJul 24, 13:55 UTC1h 35m
2026-07-24 SWA872 MDW → RDU Jul 24, 12:15 UTCJul 24, 13:55 UTC1h 40m
2026-07-24 SWA4872 BUR → PHX Jul 24, 10:30 UTCJul 24, 11:05 UTC35m
2026-07-24 SWA2881 OAK → SEA Jul 24, 00:40 UTCJul 24, 03:00 UTC2h 20m
2026-07-23 SWA2953 OAK → SNA Jul 23, 23:00 UTCJul 23, 23:30 UTC30m
2026-07-23 SWA3516 SAN → MKE Jul 23, 18:11 UTCJul 23, 21:35 UTC3h 24m
2026-07-23 SWA3516 - Jul 23, 18:15 UTCJul 23, 21:35 UTC3h 20m
2026-07-23 SWA4283 - Jul 23, 13:30 UTCJul 23, 16:30 UTC3h 0m
2026-07-23 SWA4283 STL → SAN Jul 23, 13:30 UTCJul 23, 16:39 UTC3h 9m
2026-07-23 SWA3227 BWI → MCI Jul 23, 10:20 UTCJul 23, 12:20 UTC2h 0m
2026-07-23 SWA634 OAK → PDX Jul 23, 01:25 UTCJul 23, 03:00 UTC1h 35m
2026-07-22 SWA1657 - Jul 22, 22:40 UTCJul 22, 23:55 UTC1h 15m
2026-07-22 SWA1657 PNS → BNA Jul 22, 22:38 UTCJul 22, 23:48 UTC1h 10m
2026-07-22 SWA1657 - Jul 22, 19:20 UTCJul 22, 21:45 UTC2h 25m
2026-07-22 SWA3739 BWI → CVG Jul 22, 17:05 UTCJul 22, 18:05 UTC1h 0m
2026-07-22 SWA3739 BWI → CVG Jul 22, 17:03 UTCJul 22, 18:00 UTC57m
2026-07-22 SWA2957 MSY → SAN Jul 22, 15:00 UTCJul 22, 16:00 UTC1h 0m
2026-07-22 SWA2340 DEN → PHX Jul 22, 11:20 UTCJul 22, 13:30 UTC2h 10m
2026-07-22 SWA1659 DEN → OMA Jul 22, 02:25 UTCJul 22, 03:25 UTC1h 0m
2026-07-22 SWA1659 - Jul 22, 02:30 UTCJul 22, 03:30 UTC1h 0m
2026-07-21 SWA1881 PNS → DEN Jul 21, 22:20 UTCJul 22, 00:50 UTC2h 30m
2026-07-21 SWA2489 - Jul 21, 19:20 UTCJul 21, 21:00 UTC1h 40m
2026-07-21 SWA3572 - Jul 21, 17:20 UTCJul 21, 18:20 UTC1h 0m
2026-07-21 SWA3572 MDW → MCI Jul 21, 17:15 UTCJul 21, 18:15 UTC1h 0m
2026-07-21 SWA2728 BWI → MHT Jul 21, 12:40 UTCJul 21, 16:20 UTC3h 40m
2026-07-21 SWA3213 MDW → BNA Jul 21, 03:35 UTCJul 21, 04:45 UTC1h 10m
2026-07-21 SWA3813 DAL → MSY Jul 21, 01:50 UTCJul 21, 02:55 UTC1h 5m
2026-07-21 SWA3813 DAL → MSY Jul 21, 01:48 UTCJul 21, 02:50 UTC1h 2m
2026-07-20 SWA1308 LAS → SMF Jul 20, 23:30 UTCJul 21, 00:35 UTC1h 4m
2026-07-20 SWA5057 BWI → MDW Jul 20, 21:05 UTCJul 20, 22:15 UTC1h 10m
2026-07-20 SWA5057 BWI → MDW Jul 20, 21:00 UTCJul 20, 22:16 UTC1h 16m
2026-07-20 SWA5056 - Jul 20, 19:10 UTCJul 20, 20:00 UTC50m
2026-07-20 SWA5056 LAS → RNO Jul 20, 19:09 UTCJul 20, 20:04 UTC55m
2026-07-20 SWA2007 LAX → LAS Jul 20, 17:10 UTCJul 20, 17:55 UTC46m
2026-07-20 SWA2007 - Jul 20, 13:00 UTCJul 20, 15:50 UTC2h 50m
2026-07-20 SWA2927 - Jul 20, 09:25 UTCJul 20, 11:40 UTC2h 15m

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 N8573Z page for operator, model, and routing details .

Mode-S ABC432 frequently asked

What is Mode-S code ABC432?
ABC432 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8573Z.
Where is Mode-S ABC432 registered?
Mode-S code ABC432 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 ABC432 broadcasting right now?
Yes. Mode-S ABC432 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABC432, octal 52742062, decimal 11,256,882.
What flights does ABC432 operate?
Mode-S ABC432 has broadcast 20 distinct callsigns, including SWA2311, SWA1348, SWA365, SWA3397, SWA2792.