Apparatus

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sensors Mode-S transponder

AC65FB

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8984L · BOEING 737-800 · operated by SOUTHWEST AIRLINES CO

Hex
AC65FB
Octal
53062773
Decimal
11,298,299
Country
US
Tail
N8984L
Type
B738
Transponder active on ground
Flights observed
734
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:45 UTC

Last known position

Most recent position reported by Mode-S AC65FB.

Country allocation

The ICAO 24-bit address AC65FB 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
SWA208 - 5 2026-07-17
SWA4252 Southwest Airlines 4 2026-04-26
SWA3482 - 4 2026-06-28
SWA2015 Southwest Airlines 4 2026-04-16
SWA927 - 3 2026-06-27
SWA793 Southwest Airlines 3 2026-05-31
SWA754 Southwest Airlines 3 2026-04-25
SWA4952 - 3 2026-04-13
SWA494 Southwest Airlines 3 2026-05-29
SWA446 - 3 2026-07-14
SWA4354 Southwest Airlines 3 2026-05-18
SWA426 Southwest Airlines 3 2026-05-23
SWA3969 Southwest Airlines 3 2026-05-03
SWA3953 - 3 2026-06-19
SWA3952 Southwest Airlines 3 2026-06-19
SWA3727 Southwest Airlines 3 2026-05-07
SWA3547 Southwest Airlines 3 2026-05-25
SWA3306 - 3 2026-04-17
SWA3243 - 3 2026-04-13
SWA3073 Southwest Airlines 3 2026-07-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA1587 LAS → SJC Jul 26, 20:40 UTCJul 26, 21:45 UTC1h 5m
2026-07-26 SWA4238 SAN → OAK Jul 26, 17:35 UTCJul 26, 19:30 UTC1h 55m
2026-07-26 SWA362 BOI → SJC Jul 26, 15:00 UTCJul 26, 16:05 UTC1h 5m
2026-07-26 SWA1435 OGG → SJC Jul 26, 03:40 UTCJul 26, 04:45 UTC1h 5m
2026-07-25 SWA976 DEN → MDW Jul 25, 22:00 UTCJul 26, 02:25 UTC4h 25m
2026-07-25 SWA4434 SNA → DEN Jul 25, 17:50 UTCJul 25, 20:50 UTC3h 0m
2026-07-25 SWA2629 SJC → SAN Jul 25, 13:10 UTCJul 25, 16:30 UTC3h 20m
2026-07-25 SWA2629 SJC → SAN Jul 25, 13:10 UTCJul 25, 16:23 UTC3h 13m
2026-07-25 SWA3083 OAK → SAN Jul 25, 10:40 UTCJul 25, 11:10 UTC30m
2026-07-25 SWA3083 OAK → SAN Jul 25, 10:34 UTCJul 25, 11:06 UTC32m
2026-07-25 SWA1045 SAN → SJC Jul 25, 00:55 UTCJul 25, 03:00 UTC2h 5m
2026-07-25 SWA1045 SAN → SJC Jul 25, 00:53 UTCJul 25, 03:01 UTC2h 8m
2026-07-24 SWA1045 SAN → SJC Jul 24, 21:15 UTCJul 25, 00:05 UTC2h 50m
2026-07-24 SWA2631 SNA → OAK Jul 24, 16:50 UTCJul 24, 20:05 UTC3h 15m
2026-07-24 SWA2631 SNA → OAK Jul 24, 16:47 UTCJul 24, 19:59 UTC3h 12m
2026-07-24 SWA3242 SFO → LAS Jul 24, 14:20 UTCJul 24, 15:45 UTC1h 25m
2026-07-24 SWA3242 SFO → LAS Jul 24, 14:15 UTCJul 24, 15:36 UTC1h 21m
2026-07-24 SWA2836 SJC → SEA Jul 24, 02:50 UTCJul 24, 04:35 UTC1h 45m
2026-07-24 SWA2836 SJC → SEA Jul 24, 02:47 UTCJul 24, 04:29 UTC1h 42m
2026-07-24 SWA4073 PHX → DAL Jul 24, 00:30 UTCJul 24, 01:35 UTC1h 5m
2026-07-23 SWA9004 BHM → DAL Jul 23, 22:55 UTCJul 23, 23:35 UTC40m
2026-07-23 SWA9004 BHM → DAL Jul 23, 22:54 UTCJul 23, 23:30 UTC36m
2026-07-23 SWA1020 MDW → DEN Jul 23, 20:20 UTCJul 23, 21:40 UTC1h 20m
2026-07-23 SWA1020 MDW → DEN Jul 23, 20:19 UTCJul 23, 21:39 UTC1h 20m
2026-07-23 SWA1019 ELP → DEN Jul 23, 16:55 UTCJul 23, 19:00 UTC2h 5m
2026-07-23 SWA4158 CLT → BNA Jul 23, 12:55 UTCJul 23, 15:35 UTC2h 40m
2026-07-23 SWA540 LAS → SBA Jul 23, 05:35 UTCJul 23, 09:50 UTC4h 15m
2026-07-22 SWA4784 DEN → PHL Jul 22, 23:05 UTCJul 23, 03:35 UTC4h 30m
2026-07-22 SWA3073 AMA → DAL Jul 22, 20:05 UTCJul 22, 21:45 UTC1h 40m
2026-07-22 SWA3073 AMA → DAL Jul 22, 20:02 UTCJul 22, 21:37 UTC1h 35m
2026-07-22 SWA2270 SNA → HOU Jul 22, 17:25 UTCJul 22, 19:00 UTC1h 35m
2026-07-22 SWA2270 SNA → HOU Jul 22, 13:05 UTCJul 22, 16:10 UTC3h 5m
2026-07-21 SWA975 LAS → BUR Jul 21, 20:30 UTCJul 22, 00:55 UTC4h 25m
2026-07-21 SWA4388 DCA → DAL Jul 21, 14:00 UTCJul 21, 15:10 UTC1h 10m
2026-07-21 SWA4388 DCA → DAL Jul 21, 13:56 UTCJul 21, 15:11 UTC1h 15m
2026-07-21 SWA2642 SNA → SJC Jul 21, 11:00 UTCJul 21, 12:55 UTC1h 55m
2026-07-21 SWA4926 CVG → MDW Jul 21, 02:55 UTCJul 21, 05:05 UTC2h 10m
2026-07-21 SWA4926 CVG → MDW Jul 21, 02:54 UTCJul 21, 05:00 UTC2h 6m
2026-07-21 SWA1014 - Jul 21, 00:20 UTCJul 21, 02:05 UTC1h 45m
2026-07-20 SWA2924 OAK → BUR Jul 20, 20:50 UTCJul 20, 23:10 UTC2h 20m
2026-07-20 SWA2924 OAK → BUR Jul 20, 20:48 UTCJul 20, 23:05 UTC2h 17m
2026-07-20 SWA4737 HOU → PHX Jul 20, 16:25 UTCJul 20, 18:35 UTC2h 10m
2026-07-20 SWA2918 BWI → BOS Jul 20, 13:40 UTCJul 20, 14:55 UTC1h 15m
2026-07-20 SWA1002 BUR → SJC Jul 20, 11:25 UTCJul 20, 12:20 UTC55m
2026-07-20 SWA3194 PBI → ATL Jul 20, 07:55 UTCJul 20, 09:15 UTC1h 20m
2026-07-20 SWA3194 PBI → ATL Jul 20, 05:05 UTCJul 20, 07:50 UTC2h 45m
2026-07-20 SWA1669 LGA → MDW Jul 20, 01:40 UTCJul 20, 03:55 UTC2h 15m
2026-07-19 SWA1087 HOU → PHX Jul 19, 22:05 UTCJul 20, 00:10 UTC2h 5m
2026-07-19 SWA1087 HOU → PHX Jul 19, 22:05 UTCJul 20, 00:00 UTC1h 55m
2026-07-19 SWA4195 CVG → PHX Jul 19, 18:30 UTCJul 19, 21:00 UTC2h 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 N8984L page for operator, model, and routing details .

Mode-S AC65FB frequently asked

What is Mode-S code AC65FB?
AC65FB is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8984L.
Where is Mode-S AC65FB registered?
Mode-S code AC65FB 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 AC65FB broadcasting right now?
Mode-S AC65FB is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC65FB, octal 53062773, decimal 11,298,299.
What flights does AC65FB operate?
Mode-S AC65FB has broadcast 20 distinct callsigns, including SWA208, SWA4252, SWA3482, SWA2015, SWA927.