Apparatus

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sensors Mode-S transponder

ABB579

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8534Z · BOEING 737-800 · operated by SOUTHWEST AIRLINES CO

Hex
ABB579
Octal
52732571
Decimal
11,253,113
Country
US
Tail
N8534Z
Type
B738
Broadcasting now · callsign SWA4457 · 11,475 ft
Flights observed
446
Distinct callsigns
20
Country
US
Last broadcast
26m ago

Current position

ABB579 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address ABB579 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
SWA661 Southwest Airlines 4 2026-06-02
SWA2838 Southwest Airlines 4 2026-06-02
SWA945 Southwest Airlines 3 2026-05-24
SWA4729 - 3 2026-07-12
SWA463 Southwest Airlines 3 2026-06-10
SWA44 - 3 2026-07-09
SWA4301 - 3 2026-06-27
SWA4254 - 3 2026-07-10
SWA40 - 3 2026-07-10
SWA3843 Southwest Airlines 3 2026-05-28
SWA3719 Southwest Airlines 3 2026-06-04
SWA3423 Southwest Airlines 3 2026-06-09
SWA3093 Southwest Airlines 3 2026-06-02
SWA2931 Southwest Airlines 3 2026-05-27
SWA2641 - 3 2026-06-24
SWA2392 - 3 2026-06-22
SWA2360 - 3 2026-07-11
SWA2184 - 3 2026-06-27
SWA2152 Southwest Airlines 3 2026-05-21
SWA1918 - 3 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SWA4457 - Jul 14, 00:10 UTCJul 14, 02:15 UTC2h 5m
2026-07-13 SWA4925 - Jul 13, 20:05 UTCJul 13, 22:55 UTC2h 50m
2026-07-13 SWA4925 MIA → MCI Jul 13, 20:05 UTCJul 13, 22:55 UTC2h 50m
2026-07-13 SWA581 BNA → MIA Jul 13, 17:00 UTCJul 13, 19:05 UTC2h 5m
2026-07-13 SWA581 BNA → MIA Jul 13, 17:00 UTCJul 13, 19:00 UTC2h 1m
2026-07-13 SWA5068 - Jul 13, 14:15 UTCJul 13, 15:50 UTC1h 35m
2026-07-13 SWA5068 HOU → BNA Jul 13, 14:14 UTCJul 13, 15:46 UTC1h 32m
2026-07-13 SWA2244 - Jul 13, 04:40 UTCJul 13, 07:10 UTC2h 30m
2026-07-13 SWA3956 - Jul 13, 00:50 UTCJul 13, 03:25 UTC2h 35m
2026-07-13 SWA3956 HOU → LAS Jul 13, 00:45 UTCJul 13, 03:24 UTC2h 39m
2026-07-12 SWA777 - Jul 12, 21:40 UTCJul 12, 23:40 UTC2h 0m
2026-07-12 SWA777 - Jul 12, 18:50 UTCJul 12, 20:15 UTC1h 25m
2026-07-12 SWA1918 - Jul 12, 15:30 UTCJul 12, 17:35 UTC2h 5m
2026-07-12 SWA1918 MCI → BWI Jul 12, 15:26 UTCJul 12, 17:31 UTC2h 5m
2026-07-12 SWA1987 - Jul 12, 13:01 UTCJul 12, 14:25 UTC1h 25m
2026-07-12 SWA4729 - Jul 12, 10:20 UTCJul 12, 11:50 UTC1h 30m
2026-07-12 SWA4729 ATL → HOU Jul 12, 10:18 UTCJul 12, 11:55 UTC1h 37m
2026-07-11 SWA3417 PHX → ATL Jul 11, 23:50 UTCJul 12, 03:15 UTC3h 25m
2026-07-11 SWA3417 PHX → ATL Jul 11, 23:49 UTCJul 12, 03:13 UTC3h 24m
2026-07-11 SWA2360 - Jul 11, 19:35 UTCJul 11, 22:45 UTC3h 10m
2026-07-11 SWA2360 IND → PHX Jul 11, 19:34 UTCJul 11, 22:51 UTC3h 17m
2026-07-11 SWA2246 LAS → IND Jul 11, 15:25 UTCJul 11, 18:35 UTC3h 10m
2026-07-11 SWA835 - Jul 11, 12:30 UTCJul 11, 14:20 UTC1h 50m
2026-07-11 SWA384 SJC → PDX Jul 11, 05:55 UTCJul 11, 07:15 UTC1h 20m
2026-07-11 SWA384 SJC → PDX Jul 11, 05:55 UTCJul 11, 07:12 UTC1h 18m
2026-07-11 SWA4186 - Jul 11, 03:20 UTCJul 11, 04:20 UTC1h 0m
2026-07-10 SWA40 DAL → SAN Jul 10, 23:45 UTCJul 11, 02:10 UTC2h 25m
2026-07-10 SWA40 DAL → SAN Jul 10, 23:43 UTCJul 11, 02:08 UTC2h 25m
2026-07-10 SWA40 - Jul 10, 22:10 UTCJul 10, 22:50 UTC40m
2026-07-10 SWA4254 - Jul 10, 20:15 UTCJul 10, 20:30 UTC15m
2026-07-10 SWA4254 - Jul 10, 17:25 UTCJul 10, 20:30 UTC3h 5m
2026-07-10 SWA4254 BWI → HOU Jul 10, 17:20 UTCJul 10, 19:58 UTC2h 38m
2026-07-10 SWA1267 - Jul 10, 15:00 UTCJul 10, 16:05 UTC1h 5m
2026-07-10 SWA1267 SDF → BWI Jul 10, 14:55 UTCJul 10, 16:08 UTC1h 13m
2026-07-10 SWA1267 - Jul 10, 12:55 UTCJul 10, 13:45 UTC50m
2026-07-10 SWA4504 - Jul 10, 10:35 UTCJul 10, 11:35 UTC1h 0m
2026-07-10 SWA4912 STL → OMA Jul 10, 03:45 UTCJul 10, 04:35 UTC50m
2026-07-10 SWA4912 STL → OMA Jul 10, 03:44 UTCJul 10, 04:34 UTC50m
2026-07-09 SWA1875 FLL → STL Jul 9, 23:25 UTCJul 10, 01:55 UTC2h 30m
2026-07-09 SWA379 - Jul 9, 19:35 UTCJul 9, 22:20 UTC2h 45m
2026-07-09 SWA379 MCI → FLL Jul 9, 19:34 UTCJul 9, 22:17 UTC2h 43m
2026-07-09 SWA1788 - Jul 9, 16:25 UTCJul 9, 18:15 UTC1h 50m
2026-07-09 SWA1788 ECP → MCI Jul 9, 16:24 UTCJul 9, 18:15 UTC1h 51m
2026-07-09 SWA2773 - Jul 9, 14:00 UTCJul 9, 15:40 UTC1h 40m
2026-07-09 SWA1866 - Jul 9, 10:10 UTCJul 9, 12:45 UTC2h 35m
2026-07-09 SWA44 - Jul 9, 00:00 UTCJul 9, 02:15 UTC2h 15m
2026-07-08 SWA44 DAL → FLL Jul 8, 23:59 UTCJul 9, 02:16 UTC2h 17m
2026-07-08 SWA44 - Jul 8, 22:10 UTCJul 8, 22:50 UTC40m
2026-07-08 SWA2084 - Jul 8, 19:20 UTCJul 8, 21:10 UTC1h 50m
2026-07-08 SWA2084 JAX → HOU Jul 8, 19:19 UTCJul 8, 21:10 UTC1h 52m

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 N8534Z page for operator, model, and routing details .

Mode-S ABB579 frequently asked

What is Mode-S code ABB579?
ABB579 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8534Z.
Where is Mode-S ABB579 registered?
Mode-S code ABB579 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 ABB579 broadcasting right now?
Yes. Mode-S ABB579 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABB579, octal 52732571, decimal 11,253,113.
What flights does ABB579 operate?
Mode-S ABB579 has broadcast 20 distinct callsigns, including SWA661, SWA2838, SWA945, SWA4729, SWA463.