Apparatus

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sensors Mode-S transponder

ABD536

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8612K · BOEING 737-800 · operated by SOUTHWEST AIRLINES CO

Hex
ABD536
Octal
52752466
Decimal
11,261,238
Country
US
Tail
N8612K
Type
B738
No current signal · last broadcast Jul 26, 21:30 UTC
Flights observed
719
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:30 UTC

Last known position

Most recent position reported by Mode-S ABD536.

Country allocation

The ICAO 24-bit address ABD536 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
SWA1562 - 10 2026-07-03
SWA1165 Southwest Airlines 5 2026-04-24
SWA3310 Southwest Airlines 4 2026-07-23
SWA2192 Southwest Airlines 4 2026-07-23
SWA1782 Southwest Airlines 4 2026-06-14
SWA1680 Southwest Airlines 4 2026-06-02
SWA899 - 3 2026-07-02
SWA573 Southwest Airlines 3 2026-04-27
SWA479 Southwest Airlines 3 2026-04-16
SWA4789 Southwest Airlines 3 2026-06-22
SWA4780 - 3 2026-07-06
SWA4632 Southwest Airlines 3 2026-06-11
SWA4532 - 3 2026-07-17
SWA4512 - 3 2026-06-14
SWA4454 Southwest Airlines 3 2026-05-14
SWA437 Southwest Airlines 3 2026-06-05
SWA4279 Southwest Airlines 3 2026-04-16
SWA4130 Southwest Airlines 3 2026-07-25
SWA3718 - 3 2026-07-11
SWA3685 - 3 2026-07-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA1887 OAK → BUR Jul 26, 19:50 UTCJul 26, 21:30 UTC1h 40m
2026-07-26 SWA2306 OMA → MDW Jul 26, 17:05 UTCJul 26, 18:55 UTC1h 50m
2026-07-26 SWA4306 BWI → MDW Jul 26, 13:45 UTCJul 26, 15:50 UTC2h 5m
2026-07-26 SWA1558 LGB → OAK Jul 26, 02:20 UTCJul 26, 05:55 UTC3h 35m
2026-07-25 SWA1404 SAN → SJC Jul 25, 21:51 UTCJul 26, 01:10 UTC3h 19m
2026-07-25 SWA1404 SAN → SJC Jul 25, 21:55 UTCJul 26, 01:15 UTC3h 20m
2026-07-25 SWA4130 MSY → LAS Jul 25, 17:55 UTCJul 25, 20:10 UTC2h 15m
2026-07-25 SWA4130 MSY → LAS Jul 25, 17:51 UTCJul 25, 20:12 UTC2h 22m
2026-07-25 SWA4130 MSY → LAS Jul 25, 14:25 UTCJul 25, 16:10 UTC1h 45m
2026-07-25 SWA1548 DCA → DAL Jul 25, 12:35 UTCJul 25, 13:20 UTC45m
2026-07-25 SWA1548 DCA → DAL Jul 25, 09:35 UTCJul 25, 11:40 UTC2h 5m
2026-07-24 SWA2441 MSY → DAL Jul 24, 23:25 UTCJul 25, 03:55 UTC4h 30m
2026-07-24 SWA4882 LBB → LAS Jul 24, 17:41 UTCJul 24, 21:52 UTC4h 11m
2026-07-24 SWA4882 LBB → LAS Jul 24, 17:45 UTCJul 24, 21:55 UTC4h 10m
2026-07-24 SWA2762 DCA → MSY Jul 24, 12:50 UTCJul 24, 15:50 UTC3h 0m
2026-07-23 SWA3740 BOI → OAK Jul 23, 23:30 UTCJul 24, 00:35 UTC1h 5m
2026-07-23 SWA3310 DEN → SLC Jul 23, 21:05 UTCJul 23, 22:05 UTC1h 0m
2026-07-23 SWA3310 DEN → SLC Jul 23, 21:04 UTCJul 23, 21:56 UTC52m
2026-07-23 SWA702 MDW → BOS Jul 23, 18:25 UTCJul 23, 19:45 UTC1h 20m
2026-07-23 SWA2192 STL → DEN Jul 23, 15:45 UTCJul 23, 17:00 UTC1h 15m
2026-07-23 SWA2192 STL → DEN Jul 23, 15:40 UTCJul 23, 16:56 UTC1h 16m
2026-07-23 SWA2192 STL → DEN Jul 23, 11:35 UTCJul 23, 14:40 UTC3h 5m
2026-07-23 SWA2836 SJC → SEA Jul 23, 03:20 UTCJul 23, 05:00 UTC1h 40m
2026-07-22 SWA1999 PUJ → MDW Jul 22, 15:15 UTCJul 22, 23:35 UTC8h 20m
2026-07-22 SWA4183 OGG → PHX Jul 22, 11:35 UTCJul 22, 13:35 UTC2h 0m
2026-07-22 SWA2787 LGA → ATL Jul 22, 03:45 UTCJul 22, 05:25 UTC1h 40m
2026-07-22 SWA2787 LGA → ATL Jul 22, 03:44 UTCJul 22, 05:46 UTC2h 2m
2026-07-22 SWA233 PWM → BWI Jul 22, 00:40 UTCJul 22, 02:35 UTC1h 55m
2026-07-21 SWA2054 BWI → BUF Jul 21, 23:05 UTCJul 21, 23:40 UTC35m
2026-07-21 SWA2054 BWI → BUF Jul 21, 23:01 UTCJul 21, 23:36 UTC35m
2026-07-21 SWA3907 - Jul 21, 20:55 UTCJul 21, 21:40 UTC45m
2026-07-21 SWA3316 MCO → STL Jul 21, 18:00 UTCJul 21, 19:55 UTC1h 55m
2026-07-21 SWA3316 MCO → STL Jul 21, 17:56 UTCJul 21, 19:54 UTC1h 58m
2026-07-21 SWA3723 SEA → OAK Jul 21, 14:10 UTCJul 21, 16:50 UTC2h 40m
2026-07-21 SWA2691 SYR → BWI Jul 21, 12:35 UTCJul 21, 12:45 UTC10m
2026-07-21 SWA2691 SYR → BWI Jul 21, 10:25 UTCJul 21, 11:00 UTC35m
2026-07-21 SWA1729 OAK → SAN Jul 21, 01:25 UTCJul 21, 04:05 UTC2h 40m
2026-07-21 SWA1729 OAK → SAN Jul 21, 01:24 UTCJul 21, 04:01 UTC2h 37m
2026-07-20 SWA2705 - Jul 20, 21:40 UTCJul 21, 00:05 UTC2h 24m
2026-07-20 SWA3238 - Jul 20, 19:20 UTCJul 20, 19:50 UTC30m
2026-07-20 SWA3238 - Jul 20, 16:55 UTCJul 20, 19:50 UTC2h 55m
2026-07-20 SWA3238 MCI → MCO Jul 20, 16:50 UTCJul 20, 19:02 UTC2h 12m
2026-07-20 SWA989 - Jul 20, 13:25 UTCJul 20, 15:45 UTC2h 20m
2026-07-20 SWA4358 BUR → OAK Jul 20, 10:15 UTCJul 20, 12:10 UTC1h 55m
2026-07-20 SWA4358 BUR → OAK Jul 20, 10:14 UTCJul 20, 12:02 UTC1h 48m
2026-07-20 SWA1875 ISP → FLL Jul 20, 02:10 UTCJul 20, 04:35 UTC2h 25m
2026-07-19 SWA3359 STL → FLL Jul 19, 22:50 UTCJul 20, 01:15 UTC2h 25m
2026-07-19 SWA3359 STL → FLL Jul 19, 22:48 UTCJul 20, 01:15 UTC2h 28m
2026-07-19 SWA140 SEA → STL Jul 19, 18:40 UTCJul 19, 21:45 UTC3h 5m
2026-07-19 SWA140 - Jul 19, 15:40 UTCJul 19, 17:10 UTC1h 30m

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 N8612K page for operator, model, and routing details .

Mode-S ABD536 frequently asked

What is Mode-S code ABD536?
ABD536 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8612K.
Where is Mode-S ABD536 registered?
Mode-S code ABD536 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 ABD536 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABD536, octal 52752466, decimal 11,261,238.
What flights does ABD536 operate?
Mode-S ABD536 has broadcast 20 distinct callsigns, including SWA1562, SWA1165, SWA3310, SWA2192, SWA1782.