Apparatus

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sensors Mode-S transponder

AB5BF0

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8309C · BOEING 737-800 · operated by SOUTHWEST AIRLINES CO

Hex
AB5BF0
Octal
52655760
Decimal
11,230,192
Country
US
Tail
N8309C
Type
B738
No current signal · last broadcast Jul 26, 21:40 UTC
Flights observed
664
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:40 UTC

Last known position

Most recent position reported by Mode-S AB5BF0.

Country allocation

The ICAO 24-bit address AB5BF0 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
SWA1767 - 6 2026-07-16
SWA978 Southwest Airlines 4 2026-05-28
SWA650 - 4 2026-07-09
SWA614 Southwest Airlines 4 2026-06-08
SWA4478 - 4 2026-06-21
SWA758 Southwest Airlines 3 2026-07-04
SWA737 Southwest Airlines 3 2026-06-07
SWA727 Southwest Airlines 3 2026-04-17
SWA716 Southwest Airlines 3 2026-05-09
SWA708 Southwest Airlines 3 2026-05-01
SWA660 Southwest Airlines 3 2026-04-28
SWA645 - 3 2026-06-23
SWA4872 Southwest Airlines 3 2026-07-25
SWA4863 - 3 2026-07-11
SWA4586 Southwest Airlines 3 2026-05-05
SWA4481 - 3 2026-06-19
SWA4420 - 3 2026-07-06
SWA4291 - 3 2026-07-14
SWA426 Southwest Airlines 3 2026-06-04
SWA4203 - 3 2026-04-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA3051 FLL → DAL Jul 26, 19:05 UTCJul 26, 21:35 UTC2h 30m
2026-07-26 SWA2630 SAN → OAK Jul 26, 14:40 UTCJul 26, 17:50 UTC3h 10m
2026-07-26 SWA2630 SAN → OAK Jul 26, 14:36 UTCJul 26, 17:48 UTC3h 12m
2026-07-26 SWA371 HOU → MCO Jul 26, 10:55 UTCJul 26, 13:10 UTC2h 15m
2026-07-26 SWA371 HOU → MCO Jul 26, 10:53 UTCJul 26, 13:06 UTC2h 13m
2026-07-26 SWA4321 LAS → ELP Jul 26, 02:15 UTCJul 26, 02:55 UTC40m
2026-07-25 SWA3605 BUR → PHX Jul 25, 23:00 UTCJul 26, 01:10 UTC2h 10m
2026-07-25 SWA4848 GPT → MSY Jul 25, 20:20 UTCJul 25, 22:15 UTC1h 55m
2026-07-25 SWA1275 HOU → LAX Jul 25, 17:50 UTCJul 25, 19:10 UTC1h 20m
2026-07-25 SWA1275 HOU → LAX Jul 25, 17:40 UTCJul 25, 19:03 UTC1h 23m
2026-07-25 SWA1591 SNA → OAK Jul 25, 14:45 UTCJul 25, 16:20 UTC1h 35m
2026-07-25 SWA2591 DEN → CLE Jul 25, 12:30 UTCJul 25, 13:35 UTC1h 5m
2026-07-25 SWA4872 BUR → PHX Jul 25, 10:25 UTCJul 25, 10:56 UTC32m
2026-07-25 SWA4872 BUR → PHX Jul 25, 10:30 UTCJul 25, 11:00 UTC30m
2026-07-25 SWA658 PVD → MCO Jul 25, 00:20 UTCJul 25, 02:05 UTC1h 45m
2026-07-24 SWA1369 OAK → LGB Jul 24, 21:50 UTCJul 24, 22:55 UTC1h 5m
2026-07-24 SWA1369 OAK → LGB Jul 24, 21:45 UTCJul 24, 22:48 UTC1h 3m
2026-07-24 SWA925 BOS → MDW Jul 24, 19:00 UTCJul 24, 20:50 UTC1h 50m
2026-07-24 SWA1362 HOU → TUS Jul 24, 15:05 UTCJul 24, 17:55 UTC2h 50m
2026-07-24 SWA1326 PSP → SJC Jul 24, 11:15 UTCJul 24, 13:50 UTC2h 35m
2026-07-24 SWA4377 PHX → AUS Jul 24, 03:15 UTCJul 24, 05:50 UTC2h 35m
2026-07-23 SWA1157 BUR → SFO Jul 23, 22:20 UTCJul 23, 23:35 UTC1h 15m
2026-07-23 SWA1157 BUR → SFO Jul 23, 22:17 UTCJul 23, 23:32 UTC1h 15m
2026-07-23 SWA1601 SAN → SJC Jul 23, 19:25 UTCJul 23, 21:15 UTC1h 50m
2026-07-23 SWA1601 SAN → SJC Jul 23, 19:23 UTCJul 23, 21:10 UTC1h 47m
2026-07-23 SWA1249 ONT → SJC Jul 23, 15:35 UTCJul 23, 18:15 UTC2h 40m
2026-07-23 SWA1249 ONT → SJC Jul 23, 12:45 UTCJul 23, 14:30 UTC1h 45m
2026-07-23 SWA3799 MDW → CMH Jul 23, 05:50 UTCJul 23, 10:30 UTC4h 40m
2026-07-23 SWA4058 GSP → BWI Jul 23, 03:15 UTCJul 23, 04:25 UTC1h 10m
2026-07-23 SWA1202 BUR → OAK Jul 23, 01:20 UTCJul 23, 02:10 UTC50m
2026-07-22 SWA1202 BUR → OAK Jul 22, 19:55 UTCJul 22, 23:40 UTC3h 45m
2026-07-22 SWA2743 STL → MDW Jul 22, 16:15 UTCJul 22, 18:35 UTC2h 20m
2026-07-22 SWA4932 - Jul 22, 13:00 UTCJul 22, 15:20 UTC2h 20m
2026-07-22 SWA4792 DEN → LAS Jul 22, 05:10 UTCJul 22, 05:25 UTC15m
2026-07-22 SWA4792 DEN → LAS Jul 22, 05:08 UTCJul 22, 06:22 UTC1h 15m
2026-07-22 SWA378 PHX → SDF Jul 22, 01:30 UTCJul 22, 03:20 UTC1h 50m
2026-07-21 SWA587 CUN → AUS Jul 21, 21:40 UTCJul 21, 23:40 UTC2h 0m
2026-07-21 SWA386 BNA → CUN Jul 21, 17:35 UTCJul 21, 20:15 UTC2h 40m
2026-07-21 SWA386 BNA → CUN Jul 21, 17:34 UTCJul 21, 20:09 UTC2h 35m
2026-07-21 SWA1955 MDW → STL Jul 21, 14:25 UTCJul 21, 16:00 UTC1h 35m
2026-07-21 SWA1955 MDW → STL Jul 21, 14:24 UTCJul 21, 15:56 UTC1h 32m
2026-07-21 SWA2709 BWI → MHT Jul 21, 10:50 UTCJul 21, 12:45 UTC1h 55m
2026-07-21 SWA1596 SJC → ONT Jul 21, 02:15 UTCJul 21, 05:25 UTC3h 10m
2026-07-21 SWA1596 SJC → ONT Jul 21, 02:14 UTCJul 21, 05:21 UTC3h 7m
2026-07-20 SWA2161 BUR → SFO Jul 20, 21:50 UTCJul 21, 00:55 UTC3h 4m
2026-07-20 SWA1317 SNA → LAS Jul 20, 18:45 UTCJul 20, 20:50 UTC2h 5m
2026-07-20 SWA1317 SNA → LAS Jul 20, 15:15 UTCJul 20, 17:40 UTC2h 25m
2026-07-20 SWA3607 TPA → MDW Jul 20, 10:30 UTCJul 20, 13:45 UTC3h 15m
2026-07-20 SWA3607 TPA → MDW Jul 20, 10:27 UTCJul 20, 13:42 UTC3h 16m
2026-07-20 SWA4798 - Jul 20, 02:15 UTCJul 20, 03:50 UTC1h 35m

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 N8309C page for operator, model, and routing details .

Mode-S AB5BF0 frequently asked

What is Mode-S code AB5BF0?
AB5BF0 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8309C.
Where is Mode-S AB5BF0 registered?
Mode-S code AB5BF0 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 AB5BF0 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB5BF0, octal 52655760, decimal 11,230,192.
What flights does AB5BF0 operate?
Mode-S AB5BF0 has broadcast 20 distinct callsigns, including SWA1767, SWA978, SWA650, SWA614, SWA4478.