Apparatus

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sensors Mode-S transponder

ABAD94

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8511K · BOEING 737-800 · operated by SOUTHWEST AIRLINES CO

Hex
ABAD94
Octal
52726624
Decimal
11,251,092
Country
US
Tail
N8511K
Type
B738
No current signal · last broadcast Jul 26, 22:25 UTC
Flights observed
758
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:25 UTC

Last known position

Most recent position reported by Mode-S ABAD94.

Country allocation

The ICAO 24-bit address ABAD94 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
SWA3064 Southwest Airlines 10 2026-06-03
SWA3445 Southwest Airlines 6 2026-05-17
SWA921 - 5 2026-07-07
SWA4312 - 5 2026-07-16
SWA1463 Southwest Airlines 5 2026-05-28
SWA3449 Southwest Airlines 4 2026-07-03
SWA3186 - 4 2026-07-17
SWA1718 Southwest Airlines 4 2026-05-07
SWA1383 Southwest Airlines 4 2026-05-20
SWA1228 Southwest Airlines 4 2026-05-20
SWA1172 Southwest Airlines 4 2026-04-17
SWA716 - 3 2026-07-04
SWA614 - 3 2026-06-15
SWA432 - 3 2026-07-09
SWA427 Southwest Airlines 3 2026-05-30
SWA4236 Southwest Airlines 3 2026-05-27
SWA396 Southwest Airlines 3 2026-05-28
SWA389 Southwest Airlines 3 2026-06-02
SWA3727 Southwest Airlines 3 2026-04-13
SWA3706 - 3 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA3892 SAN → SJC Jul 26, 20:05 UTCJul 26, 22:20 UTC2h 15m
2026-07-26 SWA2084 AUS → DEN Jul 26, 17:05 UTCJul 26, 18:50 UTC1h 45m
2026-07-26 SWA4572 HOU → LAS Jul 26, 12:50 UTCJul 26, 15:45 UTC2h 55m
2026-07-25 SWA329 LAX → AUS Jul 25, 23:55 UTCJul 26, 02:15 UTC2h 20m
2026-07-25 SWA329 LAX → AUS Jul 25, 23:51 UTCJul 26, 02:09 UTC2h 18m
2026-07-25 SWA2090 BNA → DAL Jul 25, 20:00 UTCJul 25, 23:00 UTC3h 0m
2026-07-25 SWA4847 MCO → IND Jul 25, 17:10 UTCJul 25, 18:50 UTC1h 40m
2026-07-25 SWA4847 MCO → IND Jul 25, 17:05 UTCJul 25, 18:49 UTC1h 44m
2026-07-25 SWA3488 PHX → OAK Jul 25, 12:30 UTCJul 25, 16:00 UTC3h 30m
2026-07-25 SWA3488 PHX → OAK Jul 25, 12:25 UTCJul 25, 15:55 UTC3h 30m
2026-07-25 SWA2135 MDW → PHL Jul 25, 06:40 UTCJul 25, 07:10 UTC30m
2026-07-25 SWA210 OAK → BUR Jul 25, 01:55 UTCJul 25, 05:35 UTC3h 40m
2026-07-24 SWA4170 OAK → BUR Jul 24, 22:20 UTCJul 25, 00:50 UTC2h 30m
2026-07-24 SWA3666 MCO → IND Jul 24, 17:50 UTCJul 24, 19:55 UTC2h 5m
2026-07-24 SWA398 LAS → SFO Jul 24, 13:35 UTCJul 24, 16:35 UTC3h 0m
2026-07-24 SWA2726 LAS → SAN Jul 24, 10:15 UTCJul 24, 11:00 UTC45m
2026-07-24 SWA2726 LAS → SAN Jul 24, 10:10 UTCJul 24, 12:14 UTC2h 4m
2026-07-24 SWA1200 SJC → PDX Jul 24, 04:20 UTCJul 24, 05:10 UTC50m
2026-07-24 SWA1963 DAL → DEN Jul 24, 01:20 UTCJul 24, 03:35 UTC2h 15m
2026-07-23 SWA3573 SAN → SJC Jul 23, 23:35 UTCJul 24, 00:15 UTC40m
2026-07-23 SWA4834 MCO → MDW Jul 23, 20:25 UTCJul 23, 22:40 UTC2h 15m
2026-07-23 SWA1817 PHL → MDW Jul 23, 15:20 UTCJul 23, 19:10 UTC3h 50m
2026-07-23 SWA1817 PHL → MDW Jul 23, 15:18 UTCJul 23, 19:05 UTC3h 47m
2026-07-23 SWA3450 MSY → DEN Jul 23, 12:10 UTCJul 23, 13:30 UTC1h 20m
2026-07-23 SWA29 HOU → IND Jul 23, 05:00 UTCJul 23, 06:20 UTC1h 20m
2026-07-23 SWA29 HOU → IND Jul 23, 04:58 UTCJul 23, 06:20 UTC1h 22m
2026-07-23 SWA3137 MDW → OMA Jul 23, 01:35 UTCJul 23, 03:50 UTC2h 15m
2026-07-22 SWA2896 PHX → ORD Jul 22, 21:15 UTCJul 23, 00:10 UTC2h 55m
2026-07-22 SWA2014 OAK → LAX Jul 22, 16:45 UTCJul 22, 19:50 UTC3h 5m
2026-07-22 SWA2215 CLE → DEN Jul 22, 13:30 UTCJul 22, 15:25 UTC1h 55m
2026-07-22 SWA1186 DAL → ORD Jul 22, 10:20 UTCJul 22, 12:10 UTC1h 50m
2026-07-22 SWA1186 DAL → ORD Jul 22, 09:28 UTCJul 22, 12:05 UTC2h 37m
2026-07-22 SWA444 PHX → OAK Jul 22, 00:50 UTCJul 22, 04:20 UTC3h 30m
2026-07-21 SWA4676 RSW → MSP Jul 21, 22:20 UTCJul 21, 23:20 UTC1h 0m
2026-07-21 SWA1143 FLL → MSY Jul 21, 20:15 UTCJul 21, 21:10 UTC55m
2026-07-21 SWA1143 FLL → MSY Jul 21, 20:12 UTCJul 21, 21:06 UTC54m
2026-07-21 SWA439 TPA → MSY Jul 21, 16:00 UTCJul 21, 19:00 UTC3h 0m
2026-07-21 SWA439 TPA → MSY Jul 21, 15:58 UTCJul 21, 19:09 UTC3h 11m
2026-07-21 SWA1969 BNA → DCA Jul 21, 13:40 UTCJul 21, 15:05 UTC1h 25m
2026-07-21 SWA3904 ATL → MIA Jul 21, 04:00 UTCJul 21, 05:25 UTC1h 25m
2026-07-21 SWA3904 ATL → MIA Jul 21, 03:59 UTCJul 21, 05:16 UTC1h 17m
2026-07-21 SWA241 SAN → PHX Jul 21, 01:50 UTCJul 21, 03:05 UTC1h 15m
2026-07-20 SWA1263 SAN → SJC Jul 20, 22:40 UTCJul 21, 00:30 UTC1h 50m
2026-07-20 SWA1263 SAN → SJC Jul 20, 22:40 UTCJul 21, 00:25 UTC1h 45m
2026-07-20 SWA1263 SAN → SJC Jul 20, 18:40 UTCJul 20, 21:30 UTC2h 50m
2026-07-20 SWA3937 MSY → MCI Jul 20, 13:55 UTCJul 20, 17:05 UTC3h 10m
2026-07-20 SWA198 MCO → STL Jul 20, 03:15 UTCJul 20, 05:15 UTC2h 0m
2026-07-20 SWA198 MCO → STL Jul 20, 03:12 UTCJul 20, 05:15 UTC2h 3m
2026-07-20 SWA2690 PHL → BNA Jul 20, 00:35 UTCJul 20, 02:05 UTC1h 30m
2026-07-20 SWA2690 PHL → BNA Jul 20, 00:34 UTCJul 20, 01:56 UTC1h 22m

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 N8511K page for operator, model, and routing details .

Mode-S ABAD94 frequently asked

What is Mode-S code ABAD94?
ABAD94 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8511K.
Where is Mode-S ABAD94 registered?
Mode-S code ABAD94 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 ABAD94 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABAD94, octal 52726624, decimal 11,251,092.
What flights does ABAD94 operate?
Mode-S ABAD94 has broadcast 20 distinct callsigns, including SWA3064, SWA3445, SWA921, SWA4312, SWA1463.