Apparatus

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sensors Mode-S transponder

AC1AFA

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8796L · BOEING 737 MAX 8 · operated by SOUTHWEST AIRLINES CO

Hex
AC1AFA
Octal
53015372
Decimal
11,279,098
Country
US
Tail
N8796L
Type
B38M
No current signal · last broadcast Jul 26, 21:35 UTC
Flights observed
639
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:35 UTC

Last known position

Most recent position reported by Mode-S AC1AFA.

Country allocation

The ICAO 24-bit address AC1AFA 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
SWA3133 Southwest Airlines 8 2026-05-22
SWA4527 - 5 2026-07-02
SWA2419 - 5 2026-06-26
SWA2336 - 5 2026-06-25
SWA2272 Southwest Airlines 5 2026-05-29
SWA1914 Southwest Airlines 5 2026-07-25
SWA649 Southwest Airlines 4 2026-07-22
SWA3656 - 4 2026-06-23
SWA3596 Southwest Airlines 4 2026-05-29
SWA2964 Southwest Airlines 4 2026-06-19
SWA1915 - 4 2026-07-07
SWA1851 Southwest Airlines 4 2026-05-22
SWA1575 - 4 2026-07-16
SWA975 - 3 2026-07-15
SWA596 Southwest Airlines 3 2026-07-18
SWA532 Southwest Airlines 3 2026-05-24
SWA510 - 3 2026-07-17
SWA502 Southwest Airlines 3 2026-06-14
SWA4491 - 3 2026-06-19
SWA4128 Southwest Airlines 3 2026-06-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA2197 LAS → LIH Jul 26, 20:45 UTCJul 26, 21:30 UTC45m
2026-07-26 SWA970 LAS → SJC Jul 26, 18:40 UTCJul 26, 19:15 UTC35m
2026-07-26 SWA970 LAS → SJC Jul 26, 16:10 UTCJul 26, 17:35 UTC1h 25m
2026-07-26 SWA2384 SAN → SJC Jul 26, 14:05 UTCJul 26, 15:00 UTC55m
2026-07-26 SWA210 OAK → BUR Jul 26, 11:30 UTCJul 26, 12:50 UTC1h 20m
2026-07-26 SWA3024 MSY → DEN Jul 26, 02:15 UTCJul 26, 03:55 UTC1h 40m
2026-07-26 SWA3024 MSY → DEN Jul 26, 02:11 UTCJul 26, 03:49 UTC1h 38m
2026-07-25 SWA954 MEM → DAL Jul 25, 23:20 UTCJul 26, 00:25 UTC1h 5m
2026-07-25 SWA750 CUN → MCI Jul 25, 18:25 UTCJul 25, 21:10 UTC2h 45m
2026-07-25 SWA1710 OAK → PHX Jul 25, 13:20 UTCJul 25, 15:40 UTC2h 20m
2026-07-25 SWA1710 OAK → PHX Jul 25, 13:17 UTCJul 25, 17:00 UTC3h 43m
2026-07-25 SWA1914 ONT → OAK Jul 25, 04:50 UTCJul 25, 05:35 UTC45m
2026-07-25 SWA1914 ONT → OAK Jul 25, 02:25 UTCJul 25, 03:30 UTC1h 5m
2026-07-24 SWA1914 ONT → OAK Jul 24, 22:20 UTCJul 24, 22:35 UTC15m
2026-07-24 SWA3093 BDL → BWI Jul 24, 20:10 UTCJul 24, 20:35 UTC25m
2026-07-24 SWA574 MCI → LAX Jul 24, 18:20 UTCJul 24, 18:40 UTC20m
2026-07-24 SWA1925 BDL → BWI Jul 24, 07:05 UTCJul 24, 07:15 UTC10m
2026-07-24 SWA1925 BDL → BWI Jul 24, 06:59 UTCJul 24, 07:21 UTC22m
2026-07-24 SWA2152 SJC → LGB Jul 24, 05:20 UTCJul 24, 05:40 UTC20m
2026-07-24 SWA2152 SJC → LGB Jul 24, 05:05 UTCJul 24, 05:41 UTC36m
2026-07-24 SWA1906 LAX → SFO Jul 24, 03:30 UTCJul 24, 03:50 UTC20m
2026-07-24 SWA1923 MDW → IAH Jul 24, 00:00 UTCJul 24, 00:10 UTC10m
2026-07-23 SWA1923 MDW → IAH Jul 23, 23:55 UTCJul 24, 00:18 UTC23m
2026-07-23 SWA1921 SAN → LAS Jul 23, 20:05 UTCJul 23, 20:15 UTC10m
2026-07-23 SWA1921 SAN → LAS Jul 23, 20:04 UTCJul 23, 20:25 UTC21m
2026-07-23 SWA2167 MDW → PHL Jul 23, 18:15 UTCJul 23, 18:50 UTC35m
2026-07-23 SWA495 HOU → MAF Jul 23, 06:50 UTCJul 23, 07:25 UTC35m
2026-07-23 SWA2349 SAN → AUS Jul 23, 03:35 UTCJul 23, 03:45 UTC10m
2026-07-23 SWA3096 - Jul 23, 02:00 UTCJul 23, 02:20 UTC20m
2026-07-23 SWA1931 SAN → SJC Jul 23, 00:30 UTCJul 23, 00:50 UTC20m
2026-07-23 SWA1931 SAN → SJC Jul 23, 00:26 UTCJul 23, 00:48 UTC22m
2026-07-22 SWA3094 OAK → LAX Jul 22, 22:25 UTCJul 22, 22:50 UTC25m
2026-07-22 SWA3094 OAK → LAX Jul 22, 22:19 UTCJul 22, 22:44 UTC25m
2026-07-22 SWA649 DAL → MCI Jul 22, 15:25 UTCJul 22, 16:15 UTC50m
2026-07-22 SWA649 DAL → MCI Jul 22, 15:21 UTCJul 22, 20:38 UTC5h 17m
2026-07-22 SWA2602 - Jul 22, 04:00 UTCJul 22, 05:00 UTC1h 0m
2026-07-22 SWA3206 PHX → ONT Jul 22, 02:05 UTCJul 22, 03:00 UTC55m
2026-07-21 SWA19 PHX → DAL Jul 21, 21:25 UTCJul 21, 23:10 UTC1h 45m
2026-07-21 SWA19 PHX → DAL Jul 21, 21:23 UTCJul 21, 23:07 UTC1h 44m
2026-07-21 SWA21 BWI → ISP Jul 21, 18:40 UTCJul 21, 20:10 UTC1h 30m
2026-07-21 SWA12 DAL → BNA Jul 21, 14:50 UTCJul 21, 17:30 UTC2h 40m
2026-07-21 SWA3354 MSY → MDW Jul 21, 07:35 UTCJul 21, 10:10 UTC2h 35m
2026-07-21 SWA3354 MSY → MDW Jul 21, 05:55 UTCJul 21, 06:40 UTC45m
2026-07-21 SWA3354 MSY → MDW Jul 21, 01:10 UTCJul 21, 04:35 UTC3h 25m
2026-07-20 SWA393 SNA → DEN Jul 20, 19:50 UTCJul 20, 23:25 UTC3h 35m
2026-07-20 SWA393 SNA → DEN Jul 20, 19:50 UTCJul 20, 23:26 UTC3h 36m
2026-07-20 SWA450 - Jul 20, 16:55 UTCJul 20, 18:35 UTC1h 40m
2026-07-20 SWA4638 SJC → LAX Jul 20, 13:50 UTCJul 20, 15:40 UTC1h 50m
2026-07-20 SWA4627 PIT → TPA Jul 20, 10:45 UTCJul 20, 12:50 UTC2h 5m
2026-07-20 SWA2206 MDW → MCO Jul 20, 01:05 UTCJul 20, 05:20 UTC4h 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 N8796L page for operator, model, and routing details .

Mode-S AC1AFA frequently asked

What is Mode-S code AC1AFA?
AC1AFA is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8796L.
Where is Mode-S AC1AFA registered?
Mode-S code AC1AFA 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 AC1AFA broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC1AFA, octal 53015372, decimal 11,279,098.
What flights does AC1AFA operate?
Mode-S AC1AFA has broadcast 20 distinct callsigns, including SWA3133, SWA4527, SWA2419, SWA2336, SWA2272.