Apparatus

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sensors Mode-S transponder

ABEFBA

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8686A · BOEING 737-800 · operated by SOUTHWEST AIRLINES CO

Hex
ABEFBA
Octal
52767672
Decimal
11,268,026
Country
US
Tail
N8686A
Type
B738
No current signal · last broadcast 1h ago
Flights observed
645
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S ABEFBA.

Country allocation

The ICAO 24-bit address ABEFBA 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
SWA3579 - 6 2026-07-10
SWA785 Southwest Airlines 5 2026-04-19
SWA3904 Southwest Airlines 5 2026-06-12
SWA120 Southwest Airlines 5 2026-04-14
SWA3892 Southwest Airlines 4 2026-05-26
SWA3413 Southwest Airlines 4 2026-06-12
SWA2161 - 4 2026-04-13
SWA1882 - 4 2026-07-10
SWA1599 Southwest Airlines 4 2026-05-26
SWA1123 - 4 2026-07-11
SWA822 - 3 2026-06-27
SWA4914 - 3 2026-07-13
SWA4594 Southwest Airlines 3 2026-05-15
SWA4529 - 3 2026-07-09
SWA4454 Southwest Airlines 3 2026-06-17
SWA3890 Southwest Airlines 3 2026-05-26
SWA3751 - 3 2026-07-07
SWA3703 Southwest Airlines 3 2026-05-10
SWA3638 Southwest Airlines 3 2026-04-17
SWA3483 - 3 2026-04-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 SWA2456 LGA → DEN Jul 13, 22:45 UTCJul 14, 02:00 UTC3h 15m
2026-07-13 SWA2014 - Jul 13, 17:40 UTCJul 13, 21:15 UTC3h 35m
2026-07-13 SWA2014 HOU → LGA Jul 13, 17:37 UTCJul 13, 21:01 UTC3h 24m
2026-07-13 SWA4914 - Jul 13, 15:45 UTCJul 13, 16:10 UTC25m
2026-07-13 SWA4914 - Jul 13, 13:50 UTCJul 13, 16:10 UTC2h 20m
2026-07-13 SWA4914 ATL → HOU Jul 13, 13:50 UTCJul 13, 15:28 UTC1h 38m
2026-07-13 SWA2622 - Jul 13, 11:00 UTCJul 13, 12:35 UTC1h 35m
2026-07-13 SWA2622 HOU → ATL Jul 13, 10:55 UTCJul 13, 12:32 UTC1h 37m
2026-07-13 SWA4315 - Jul 13, 03:30 UTCJul 13, 05:40 UTC2h 10m
2026-07-12 SWA3933 TPA → PHX Jul 12, 21:55 UTCJul 13, 02:01 UTC4h 5m
2026-07-12 SWA3933 TPA → PHX Jul 12, 21:53 UTCJul 13, 01:52 UTC3h 59m
2026-07-12 SWA4511 - Jul 12, 16:10 UTCJul 12, 20:30 UTC4h 20m
2026-07-12 SWA1393 - Jul 12, 11:55 UTCJul 12, 14:20 UTC2h 25m
2026-07-12 SWA693 BWI → DAL Jul 12, 02:05 UTCJul 12, 05:10 UTC3h 5m
2026-07-12 SWA693 BWI → DAL Jul 12, 02:03 UTCJul 12, 05:03 UTC3h 0m
2026-07-11 SWA3385 - Jul 11, 21:50 UTCJul 12, 00:50 UTC3h 0m
2026-07-11 SWA1123 - Jul 11, 18:55 UTCJul 11, 20:30 UTC1h 35m
2026-07-11 SWA1123 OMA → AUS Jul 11, 18:50 UTCJul 11, 20:26 UTC1h 36m
2026-07-11 SWA1123 - Jul 11, 16:40 UTCJul 11, 17:40 UTC1h 0m
2026-07-11 SWA3738 - Jul 11, 14:05 UTCJul 11, 14:20 UTC15m
2026-07-11 SWA3738 SLC → DEN Jul 11, 14:01 UTCJul 11, 14:57 UTC56m
2026-07-11 SWA2660 MDW → SLC Jul 11, 03:55 UTCJul 11, 06:50 UTC2h 55m
2026-07-11 SWA2660 - Jul 11, 00:40 UTCJul 11, 02:50 UTC2h 10m
2026-07-10 SWA3579 - Jul 10, 20:45 UTCJul 10, 22:20 UTC1h 35m
2026-07-10 SWA3579 RIC → MCO Jul 10, 20:42 UTCJul 10, 22:14 UTC1h 33m
2026-07-10 SWA3579 - Jul 10, 17:55 UTCJul 10, 19:25 UTC1h 30m
2026-07-10 SWA1882 GEG → MDW Jul 10, 13:40 UTCJul 10, 16:45 UTC3h 5m
2026-07-10 SWA1882 GEG → MDW Jul 10, 13:40 UTCJul 10, 16:41 UTC3h 2m
2026-07-10 SWA4273 PHX → GEG Jul 10, 06:15 UTCJul 10, 08:25 UTC2h 10m
2026-07-10 SWA3160 - Jul 10, 04:35 UTCJul 10, 05:30 UTC55m
2026-07-10 SWA3160 ONT → PHX Jul 10, 04:34 UTCJul 10, 05:26 UTC52m
2026-07-10 SWA2949 DEN → ONT Jul 10, 02:05 UTCJul 10, 03:55 UTC1h 50m
2026-07-09 SWA3428 - Jul 9, 21:10 UTCJul 10, 00:55 UTC3h 45m
2026-07-09 SWA3428 RDU → DEN Jul 9, 21:07 UTCJul 10, 00:55 UTC3h 48m
2026-07-09 SWA4462 - Jul 9, 18:30 UTCJul 9, 19:55 UTC1h 25m
2026-07-09 SWA4529 - Jul 9, 16:00 UTCJul 9, 17:20 UTC1h 20m
2026-07-09 SWA4529 CLT → MDW Jul 9, 15:57 UTCJul 9, 17:20 UTC1h 24m
2026-07-09 SWA2749 - Jul 9, 13:20 UTCJul 9, 14:40 UTC1h 20m
2026-07-09 SWA2105 - Jul 9, 10:15 UTCJul 9, 12:00 UTC1h 45m
2026-07-09 SWA3679 - Jul 9, 02:50 UTCJul 9, 04:15 UTC1h 25m
2026-07-08 SWA2660 - Jul 8, 22:30 UTCJul 9, 00:50 UTC2h 20m
2026-07-08 SWA3120 OKC → MCO Jul 8, 19:00 UTCJul 8, 21:15 UTC2h 15m
2026-07-08 SWA3120 OKC → MCO Jul 8, 18:56 UTCJul 8, 21:13 UTC2h 17m
2026-07-08 SWA2589 DEN → OKC Jul 8, 16:45 UTCJul 8, 17:55 UTC1h 10m
2026-07-08 SWA4059 - Jul 8, 14:05 UTCJul 8, 15:35 UTC1h 30m
2026-07-08 SWA1557 LAS → TUS Jul 8, 05:20 UTCJul 8, 06:15 UTC55m
2026-07-08 SWA3119 OKC → LAS Jul 8, 02:00 UTCJul 8, 04:05 UTC2h 5m
2026-07-07 SWA1653 DEN → OKC Jul 7, 23:15 UTCJul 8, 01:00 UTC1h 45m
2026-07-07 SWA3264 PHX → DEN Jul 7, 20:25 UTCJul 7, 21:50 UTC1h 25m
2026-07-07 SWA3751 SLC → PHX Jul 7, 18:15 UTCJul 7, 19:30 UTC1h 15m

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 N8686A page for operator, model, and routing details .

Mode-S ABEFBA frequently asked

What is Mode-S code ABEFBA?
ABEFBA is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8686A.
Where is Mode-S ABEFBA registered?
Mode-S code ABEFBA 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 ABEFBA broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABEFBA, octal 52767672, decimal 11,268,026.
What flights does ABEFBA operate?
Mode-S ABEFBA has broadcast 20 distinct callsigns, including SWA3579, SWA785, SWA3904, SWA120, SWA3892.