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 SWA668 · 550 ft
Flights observed
532
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:45 UTC

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
SWA970 - 4 2026-07-16
SWA745 Southwest Airlines 4 2026-07-21
SWA661 Southwest Airlines 4 2026-06-02
SWA2838 Southwest Airlines 4 2026-06-02
SWA945 Southwest Airlines 3 2026-05-24
SWA821 Southwest Airlines 3 2026-07-23
SWA4729 - 3 2026-07-12
SWA463 Southwest Airlines 3 2026-06-10
SWA44 - 3 2026-07-09
SWA4301 - 3 2026-06-27
SWA4283 Southwest Airlines 3 2026-07-26
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
SWA2834 Southwest Airlines 3 2026-07-24
SWA2641 - 3 2026-06-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA3131 PVD → BWI Jul 26, 18:05 UTCJul 26, 20:45 UTC2h 40m
2026-07-26 SWA4283 AUS → SJU Jul 26, 13:40 UTCJul 26, 16:50 UTC3h 10m
2026-07-26 SWA4283 AUS → SJU Jul 26, 13:40 UTCJul 26, 16:47 UTC3h 7m
2026-07-26 SWA679 MKE → PHX Jul 26, 11:40 UTCJul 26, 12:25 UTC45m
2026-07-26 SWA4830 OKC → BNA Jul 26, 02:15 UTCJul 26, 03:50 UTC1h 35m
2026-07-26 SWA4830 OKC → BNA Jul 26, 02:12 UTCJul 26, 03:45 UTC1h 33m
2026-07-25 SWA3949 SAN → MCI Jul 25, 23:05 UTCJul 26, 01:00 UTC1h 55m
2026-07-25 SWA3949 SAN → MCI Jul 25, 23:00 UTCJul 26, 00:55 UTC1h 56m
2026-07-25 SWA1726 SJC → SAN Jul 25, 19:15 UTCJul 25, 21:20 UTC2h 5m
2026-07-25 SWA1726 SJC → SAN Jul 25, 19:13 UTCJul 25, 21:22 UTC2h 10m
2026-07-25 SWA2778 BWI → MCO Jul 25, 15:45 UTCJul 25, 18:00 UTC2h 15m
2026-07-25 SWA2778 BWI → MCO Jul 25, 15:41 UTCJul 25, 17:57 UTC2h 17m
2026-07-25 SWA4215 SJC → BUR Jul 25, 12:25 UTCJul 25, 14:30 UTC2h 5m
2026-07-25 SWA4534 CMH → SRQ Jul 25, 09:30 UTCJul 25, 10:25 UTC55m
2026-07-25 SWA4534 CMH → SRQ Jul 25, 09:28 UTCJul 25, 10:24 UTC56m
2026-07-25 SWA942 MDW → STL Jul 25, 03:05 UTCJul 25, 04:10 UTC1h 5m
2026-07-25 SWA3027 DEN → SJC Jul 25, 01:05 UTCJul 25, 02:00 UTC55m
2026-07-24 SWA3027 DEN → SJC Jul 24, 22:35 UTCJul 24, 23:55 UTC1h 20m
2026-07-24 SWA2903 BUR → SJC Jul 24, 20:45 UTCJul 24, 21:25 UTC40m
2026-07-24 SWA4664 MKE → MCO Jul 24, 17:55 UTCJul 24, 19:50 UTC1h 55m
2026-07-24 SWA2834 DAL → DEN Jul 24, 14:50 UTCJul 24, 16:30 UTC1h 40m
2026-07-24 SWA2834 DAL → DEN Jul 24, 14:45 UTCJul 24, 16:26 UTC1h 41m
2026-07-24 SWA2834 DAL → DEN Jul 24, 11:20 UTCJul 24, 13:00 UTC1h 40m
2026-07-24 SWA1040 TPA → PVD Jul 24, 03:25 UTCJul 24, 03:55 UTC30m
2026-07-24 SWA1040 TPA → PVD Jul 24, 03:20 UTCJul 24, 03:56 UTC36m
2026-07-23 SWA821 BWI → PUJ Jul 23, 15:35 UTCJul 24, 00:20 UTC8h 45m
2026-07-23 SWA3797 SLC → OAK Jul 23, 10:50 UTCJul 23, 13:25 UTC2h 35m
2026-07-23 SWA3797 SLC → OAK Jul 23, 10:46 UTCJul 23, 13:25 UTC2h 39m
2026-07-22 SWA1431 GEG → OAK Jul 22, 23:50 UTCJul 23, 01:50 UTC2h 0m
2026-07-22 SWA1431 GEG → OAK Jul 22, 23:45 UTCJul 23, 01:48 UTC2h 3m
2026-07-22 SWA4163 STL → MSY Jul 22, 18:10 UTCJul 22, 21:45 UTC3h 35m
2026-07-22 SWA4163 STL → MSY Jul 22, 18:09 UTCJul 22, 21:42 UTC3h 33m
2026-07-22 SWA4283 STL → SAN Jul 22, 13:45 UTCJul 22, 17:00 UTC3h 15m
2026-07-22 SWA752 DEN → AUS Jul 22, 11:10 UTCJul 22, 12:40 UTC1h 30m
2026-07-21 SWA4930 - Jul 21, 23:00 UTCJul 22, 03:55 UTC4h 55m
2026-07-21 SWA2324 LAS → SAN Jul 21, 21:00 UTCJul 21, 21:45 UTC45m
2026-07-21 SWA2794 MCO → BDL Jul 21, 16:30 UTCJul 21, 19:45 UTC3h 15m
2026-07-21 SWA745 SJC → SEA Jul 21, 12:53 UTCJul 21, 15:08 UTC2h 16m
2026-07-21 SWA745 SJC → SEA Jul 21, 12:55 UTCJul 21, 15:10 UTC2h 15m
2026-07-20 SWA4930 - Jul 20, 22:35 UTCJul 21, 03:35 UTC4h 59m
2026-07-20 SWA2259 OAK → LAX Jul 20, 20:45 UTCJul 20, 21:25 UTC40m
2026-07-20 SWA2259 OAK → LAX Jul 20, 20:41 UTCJul 20, 21:25 UTC44m
2026-07-20 SWA5053 AUS → ATL Jul 20, 17:45 UTCJul 20, 18:56 UTC1h 11m
2026-07-20 SWA5053 AUS → ATL Jul 20, 17:45 UTCJul 20, 19:00 UTC1h 15m
2026-07-20 SWA2056 HOU → OAK Jul 20, 12:45 UTCJul 20, 16:05 UTC3h 20m
2026-07-20 SWA301 SJC → LAS Jul 20, 10:45 UTCJul 20, 11:15 UTC30m
2026-07-20 SWA454 BNA → AUS Jul 20, 04:55 UTCJul 20, 06:35 UTC1h 40m
2026-07-20 SWA2546 DEN → OAK Jul 20, 02:20 UTCJul 20, 03:40 UTC1h 20m
2026-07-20 SWA2546 DEN → OAK Jul 20, 02:19 UTCJul 20, 03:35 UTC1h 16m
2026-07-19 SWA2609 BWI → ALB Jul 19, 23:40 UTCJul 20, 00:50 UTC1h 10m

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 SWA970, SWA745, SWA661, SWA2838, SWA945.