Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AB5F43

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8316H · BOEING 737-800 · operated by SOUTHWEST AIRLINES CO

Hex
AB5F43
Octal
52657503
Decimal
11,231,043
Country
US
Tail
N8316H
Type
B738
No current signal · last broadcast Jul 26, 02:10 UTC
Flights observed
715
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 02:10 UTC

Last known position

Most recent position reported by Mode-S AB5F43.

Country allocation

The ICAO 24-bit address AB5F43 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
SWA4541 - 5 2026-07-08
SWA3768 Southwest Airlines 5 2026-04-17
SWA732 - 4 2026-04-13
SWA7 Southwest Airlines 4 2026-06-11
SWA3644 Southwest Airlines 4 2026-05-06
SWA3518 - 4 2026-06-22
SWA188 Southwest Airlines 4 2026-07-20
SWA1010 - 4 2026-07-02
SWA991 Southwest Airlines 3 2026-07-20
SWA974 Southwest Airlines 3 2026-06-12
SWA973 Southwest Airlines 3 2026-07-25
SWA823 - 3 2026-07-11
SWA754 Southwest Airlines 3 2026-04-26
SWA752 Southwest Airlines 3 2026-04-26
SWA699 - 3 2026-04-13
SWA4557 Southwest Airlines 3 2026-07-22
SWA4534 Southwest Airlines 3 2026-05-29
SWA449 Southwest Airlines 3 2026-04-16
SWA423 Southwest Airlines 3 2026-07-19
SWA3904 Southwest Airlines 3 2026-06-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA1504 SJC → SAN Jul 26, 01:05 UTCJul 26, 02:10 UTC1h 5m
2026-07-25 SWA2487 LAX → SFO Jul 25, 22:40 UTCJul 26, 00:00 UTC1h 20m
2026-07-25 SWA2487 LAX → SFO Jul 25, 22:38 UTCJul 26, 00:08 UTC1h 30m
2026-07-25 SWA3152 BNA → VPS Jul 25, 20:10 UTCJul 25, 21:50 UTC1h 40m
2026-07-25 SWA973 LAS → AUS Jul 25, 16:25 UTCJul 25, 19:05 UTC2h 40m
2026-07-25 SWA973 LAS → AUS Jul 25, 16:23 UTCJul 25, 19:02 UTC2h 39m
2026-07-25 SWA973 LAS → AUS Jul 25, 14:25 UTCJul 25, 15:25 UTC1h 0m
2026-07-25 SWA3391 MDW → CMH Jul 25, 12:05 UTCJul 25, 13:10 UTC1h 5m
2026-07-25 SWA3391 MDW → CMH Jul 25, 12:00 UTCJul 25, 13:04 UTC1h 4m
2026-07-25 SWA2714 BNA → MCO Jul 25, 00:55 UTCJul 25, 01:55 UTC1h 0m
2026-07-25 SWA2714 BNA → MCO Jul 25, 00:54 UTCJul 25, 01:51 UTC57m
2026-07-24 SWA2199 PWM → BWI Jul 24, 22:55 UTCJul 24, 23:55 UTC1h 0m
2026-07-24 SWA2572 OAK → BUR Jul 24, 20:35 UTCJul 24, 21:35 UTC1h 0m
2026-07-24 SWA2572 OAK → BUR Jul 24, 20:29 UTCJul 24, 21:32 UTC1h 3m
2026-07-24 SWA2810 ROC → MDW Jul 24, 18:30 UTCJul 24, 19:25 UTC55m
2026-07-24 SWA2810 ROC → MDW Jul 24, 18:27 UTCJul 24, 19:25 UTC58m
2026-07-24 SWA2810 ROC → MDW Jul 24, 12:50 UTCJul 24, 16:10 UTC3h 20m
2026-07-24 SWA3856 BUR → OAK Jul 24, 05:15 UTCJul 24, 07:35 UTC2h 20m
2026-07-24 SWA742 LGA → DEN Jul 24, 00:05 UTCJul 24, 04:05 UTC4h 0m
2026-07-23 SWA4372 PHX → SMF Jul 23, 20:05 UTCJul 23, 22:10 UTC2h 5m
2026-07-23 SWA4372 PHX → SMF Jul 23, 20:04 UTCJul 23, 21:58 UTC1h 54m
2026-07-23 SWA1991 LGB → OAK Jul 23, 16:55 UTCJul 23, 17:35 UTC40m
2026-07-23 SWA1991 LGB → OAK Jul 23, 14:30 UTCJul 23, 15:15 UTC45m
2026-07-23 SWA2636 SJC → PDX Jul 23, 11:25 UTCJul 23, 13:10 UTC1h 45m
2026-07-23 SWA2821 MCI → OAK Jul 23, 02:10 UTCJul 23, 04:05 UTC1h 55m
2026-07-22 SWA219 CUN → MDW Jul 22, 20:50 UTCJul 22, 23:55 UTC3h 5m
2026-07-22 SWA1735 PHX → CUN Jul 22, 15:25 UTCJul 22, 19:05 UTC3h 40m
2026-07-22 SWA1735 PHX → CUN Jul 22, 15:24 UTCJul 22, 19:01 UTC3h 37m
2026-07-22 SWA4557 LBB → DAL Jul 22, 13:00 UTCJul 22, 13:55 UTC55m
2026-07-22 SWA4557 LBB → DAL Jul 22, 12:59 UTCJul 22, 13:52 UTC53m
2026-07-22 SWA1468 LGA → ATL Jul 22, 03:15 UTCJul 22, 04:05 UTC50m
2026-07-21 SWA1018 CUN → DEN Jul 21, 21:15 UTCJul 22, 00:35 UTC3h 20m
2026-07-21 SWA216 MDW → CUN Jul 21, 16:25 UTCJul 21, 19:50 UTC3h 25m
2026-07-21 SWA216 MDW → CUN Jul 21, 16:24 UTCJul 21, 19:47 UTC3h 23m
2026-07-21 SWA1140 TPA → MDW Jul 21, 12:25 UTCJul 21, 14:40 UTC2h 15m
2026-07-21 SWA472 BUR → SJC Jul 21, 02:30 UTCJul 21, 04:20 UTC1h 50m
2026-07-20 SWA4491 STL → MCO Jul 20, 21:40 UTCJul 21, 01:25 UTC3h 44m
2026-07-20 SWA4491 STL → MCO Jul 20, 21:39 UTCJul 21, 01:22 UTC3h 43m
2026-07-20 SWA991 MDW → CLE Jul 20, 19:20 UTCJul 20, 20:00 UTC40m
2026-07-20 SWA991 MDW → CLE Jul 20, 19:15 UTCJul 20, 19:56 UTC42m
2026-07-20 SWA991 MDW → CLE Jul 20, 14:40 UTCJul 20, 18:10 UTC3h 30m
2026-07-20 SWA550 MCO → BNA Jul 20, 11:40 UTCJul 20, 13:15 UTC1h 35m
2026-07-20 SWA550 MCO → BNA Jul 20, 11:38 UTCJul 20, 13:08 UTC1h 30m
2026-07-20 SWA2409 - Jul 20, 05:35 UTCJul 20, 10:15 UTC4h 40m
2026-07-20 SWA188 BWI → FLL Jul 20, 00:45 UTCJul 20, 04:10 UTC3h 25m
2026-07-19 SWA188 BWI → FLL Jul 19, 21:40 UTCJul 19, 23:20 UTC1h 40m
2026-07-19 SWA188 BWI → FLL Jul 19, 21:00 UTCJul 19, 21:05 UTC5m
2026-07-19 SWA188 BWI → FLL Jul 19, 20:35 UTCJul 19, 20:40 UTC5m
2026-07-19 SWA3157 LGB → OAK Jul 19, 16:25 UTCJul 19, 19:30 UTC3h 5m
2026-07-19 SWA2285 BUR → OAK Jul 19, 13:00 UTCJul 19, 14:55 UTC1h 55m

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 N8316H page for operator, model, and routing details .

Mode-S AB5F43 frequently asked

What is Mode-S code AB5F43?
AB5F43 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8316H.
Where is Mode-S AB5F43 registered?
Mode-S code AB5F43 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 AB5F43 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 02:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB5F43, octal 52657503, decimal 11,231,043.
What flights does AB5F43 operate?
Mode-S AB5F43 has broadcast 20 distinct callsigns, including SWA4541, SWA3768, SWA732, SWA7, SWA3644.