Apparatus

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sensors Mode-S transponder

ABFCB6

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8712L · BOEING 737 MAX 8 · operated by SOUTHWEST AIRLINES CO

Hex
ABFCB6
Octal
52776266
Decimal
11,271,350
Country
US
Tail
N8712L
Type
B38M
No current signal · last broadcast Jul 26, 21:30 UTC
Flights observed
675
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:30 UTC

Last known position

Most recent position reported by Mode-S ABFCB6.

Country allocation

The ICAO 24-bit address ABFCB6 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
SWA3781 Southwest Airlines 6 2026-06-17
SWA3274 - 6 2026-06-27
SWA2849 Southwest Airlines 5 2026-05-21
SWA1942 - 5 2026-06-19
SWA753 - 4 2026-06-16
SWA456 - 4 2026-06-19
SWA4532 - 4 2026-07-13
SWA4238 - 4 2026-07-06
SWA4105 - 4 2026-07-13
SWA3718 Southwest Airlines 4 2026-04-15
SWA3445 Southwest Airlines 4 2026-06-01
SWA3263 Southwest Airlines 4 2026-06-02
SWA3097 - 4 2026-07-12
SWA2813 - 4 2026-07-16
SWA2785 Southwest Airlines 4 2026-06-01
SWA2650 Southwest Airlines 4 2026-04-27
SWA2209 - 4 2026-04-13
SWA193 Southwest Airlines 4 2026-06-09
SWA173 - 4 2026-07-14
SWA131 Southwest Airlines 4 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA607 DAL → TPA Jul 26, 18:20 UTCJul 26, 21:30 UTC3h 10m
2026-07-26 SWA181 OAK → PSP Jul 26, 14:20 UTCJul 26, 17:00 UTC2h 40m
2026-07-26 SWA4663 DAL → MKE Jul 26, 10:45 UTCJul 26, 12:10 UTC1h 25m
2026-07-26 SWA445 DEN → ICT Jul 26, 02:55 UTCJul 26, 06:05 UTC3h 10m
2026-07-26 SWA445 DEN → ICT Jul 26, 02:52 UTCJul 26, 06:05 UTC3h 13m
2026-07-26 SWA716 LGA → ATL Jul 26, 00:45 UTCJul 26, 01:30 UTC45m
2026-07-26 SWA716 LGA → ATL Jul 26, 00:42 UTCJul 26, 01:30 UTC48m
2026-07-25 SWA1938 SJC → AUS Jul 25, 22:15 UTCJul 25, 23:20 UTC1h 5m
2026-07-25 SWA1938 SJC → AUS Jul 25, 18:25 UTCJul 25, 18:45 UTC20m
2026-07-25 SWA2166 PVD → BWI Jul 25, 16:15 UTCJul 25, 16:45 UTC30m
2026-07-24 SWA4452 LGA → BNA Jul 24, 22:30 UTCJul 24, 22:35 UTC5m
2026-07-24 SWA4452 LGA → BNA Jul 24, 16:55 UTCJul 24, 17:55 UTC1h 0m
2026-07-24 SWA4452 LGA → BNA Jul 24, 16:54 UTCJul 24, 22:30 UTC5h 36m
2026-07-24 SWA2970 OAK → SNA Jul 24, 13:50 UTCJul 24, 14:40 UTC50m
2026-07-24 SWA2356 PVD → TPA Jul 24, 07:01 UTCJul 24, 11:50 UTC4h 50m
2026-07-24 SWA2356 PVD → TPA Jul 24, 07:01 UTCJul 24, 11:46 UTC4h 46m
2026-07-24 SWA1931 SAN → SJC Jul 24, 00:35 UTCJul 24, 00:50 UTC15m
2026-07-23 SWA3094 OAK → LAX Jul 23, 22:15 UTCJul 23, 22:35 UTC20m
2026-07-23 SWA1851 - Jul 23, 20:15 UTCJul 23, 20:30 UTC15m
2026-07-23 SWA2509 MDW → MCI Jul 23, 18:28 UTCJul 23, 18:49 UTC21m
2026-07-23 SWA1919 OAK → PHX Jul 23, 16:35 UTCJul 23, 16:45 UTC10m
2026-07-23 SWA9000 DAL → HOU Jul 23, 08:35 UTCJul 23, 08:55 UTC20m
2026-07-23 SWA9000 DAL → HOU Jul 23, 03:24 UTCJul 23, 08:45 UTC5h 21m
2026-07-23 SWA9000 DAL → HOU Jul 23, 03:25 UTCJul 23, 04:05 UTC40m
2026-07-22 SWA4130 MSY → LAS Jul 22, 23:50 UTCJul 23, 01:34 UTC1h 44m
2026-07-22 SWA4130 MSY → LAS Jul 22, 23:50 UTCJul 23, 01:40 UTC1h 50m
2026-07-22 SWA4130 MSY → LAS Jul 22, 19:25 UTCJul 22, 21:40 UTC2h 15m
2026-07-22 SWA3693 PDX → DEN Jul 22, 16:00 UTCJul 22, 18:10 UTC2h 10m
2026-07-22 SWA3693 SJC → PDX Jul 22, 13:15 UTCJul 22, 14:35 UTC1h 20m
2026-07-22 SWA660 SAN → OAK Jul 22, 04:45 UTCJul 22, 05:25 UTC40m
2026-07-22 SWA2626 LAX → OAK Jul 22, 00:40 UTCJul 22, 03:10 UTC2h 30m
2026-07-22 SWA2626 LAX → OAK Jul 22, 00:38 UTCJul 22, 03:04 UTC2h 26m
2026-07-21 SWA750 CUN → MCI Jul 21, 20:00 UTCJul 21, 22:55 UTC2h 55m
2026-07-21 SWA750 CUN → MCI Jul 21, 19:59 UTCJul 21, 22:55 UTC2h 56m
2026-07-21 SWA728 AUS → CUN Jul 21, 16:15 UTCJul 21, 18:35 UTC2h 20m
2026-07-21 SWA268 MCO → AUS Jul 21, 12:25 UTCJul 21, 14:35 UTC2h 10m
2026-07-21 SWA2129 LAS → SJC Jul 21, 09:10 UTCJul 21, 10:55 UTC1h 45m
2026-07-21 SWA319 SAN → SFO Jul 21, 01:47 UTCJul 21, 04:00 UTC2h 13m
2026-07-21 SWA319 SAN → SFO Jul 21, 01:50 UTCJul 21, 04:00 UTC2h 10m
2026-07-20 SWA587 CUN → AUS Jul 20, 21:55 UTCJul 20, 23:55 UTC2h 0m
2026-07-20 SWA131 DEN → CUN Jul 20, 16:55 UTCJul 20, 20:30 UTC3h 35m
2026-07-20 SWA4019 LAS → OAK Jul 20, 11:55 UTCJul 20, 15:00 UTC3h 5m
2026-07-20 SWA4619 PHX → CVG Jul 20, 01:30 UTCJul 20, 03:25 UTC1h 55m
2026-07-19 SWA920 STL → PHL Jul 19, 21:15 UTCJul 20, 00:30 UTC3h 15m
2026-07-19 SWA920 STL → PHL Jul 19, 21:15 UTCJul 20, 00:30 UTC3h 15m
2026-07-19 SWA381 AUS → SMF Jul 19, 16:45 UTCJul 19, 19:50 UTC3h 5m
2026-07-19 SWA865 - Jul 19, 12:35 UTCJul 19, 15:25 UTC2h 50m
2026-07-18 SWA1391 - Jul 18, 20:30 UTCJul 19, 00:20 UTC3h 50m
2026-07-18 SWA1391 SXM → BWI Jul 18, 20:17 UTCJul 19, 00:12 UTC3h 56m
2026-07-18 SWA1873 - Jul 18, 16:10 UTCJul 18, 18:35 UTC2h 25m

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 N8712L page for operator, model, and routing details .

Mode-S ABFCB6 frequently asked

What is Mode-S code ABFCB6?
ABFCB6 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8712L.
Where is Mode-S ABFCB6 registered?
Mode-S code ABFCB6 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 ABFCB6 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 ABFCB6, octal 52776266, decimal 11,271,350.
What flights does ABFCB6 operate?
Mode-S ABFCB6 has broadcast 20 distinct callsigns, including SWA3781, SWA3274, SWA2849, SWA1942, SWA753.