Apparatus

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sensors Mode-S transponder

AB5B2B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8303R · BOEING 737-800 · operated by SOUTHWEST AIRLINES CO

Hex
AB5B2B
Octal
52655453
Decimal
11,229,995
Country
US
Tail
N8303R
Type
B738
Transponder active on ground
Flights observed
721
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:45 UTC

Last known position

Most recent position reported by Mode-S AB5B2B.

Country allocation

The ICAO 24-bit address AB5B2B 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
SWA648 Southwest Airlines 4 2026-05-24
SWA3064 Southwest Airlines 4 2026-05-26
SWA2863 - 4 2026-06-23
SWA2359 Southwest Airlines 4 2026-06-09
SWA1933 Southwest Airlines 4 2026-04-16
SWA1192 Southwest Airlines 4 2026-07-24
SWA1093 Southwest Airlines 4 2026-06-13
SWA1081 Southwest Airlines 4 2026-06-01
SWA639 Southwest Airlines 3 2026-04-22
SWA486 - 3 2026-07-01
SWA4585 - 3 2026-07-13
SWA4480 - 3 2026-07-08
SWA4369 - 3 2026-07-03
SWA4286 Southwest Airlines 3 2026-04-29
SWA4229 Southwest Airlines 3 2026-06-16
SWA4071 Southwest Airlines 3 2026-06-01
SWA387 Southwest Airlines 3 2026-06-12
SWA3750 Southwest Airlines 3 2026-06-09
SWA3332 Southwest Airlines 3 2026-05-19
SWA3327 Southwest Airlines 3 2026-05-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA1438 SFO → SAN Jul 26, 21:25 UTCJul 26, 22:45 UTC1h 20m
2026-07-26 SWA3746 DCA → MDW Jul 26, 18:20 UTCJul 26, 19:50 UTC1h 30m
2026-07-26 SWA3746 DCA → MDW Jul 26, 18:20 UTCJul 26, 19:44 UTC1h 24m
2026-07-26 SWA2891 BNA → LGA Jul 26, 16:10 UTCJul 26, 17:25 UTC1h 15m
2026-07-26 SWA2503 SNA → SJC Jul 26, 14:05 UTCJul 26, 14:45 UTC40m
2026-07-26 SWA2503 SNA → SJC Jul 26, 14:05 UTCJul 26, 15:05 UTC1h 0m
2026-07-26 SWA1427 LGA → BNA Jul 26, 00:10 UTCJul 26, 03:45 UTC3h 35m
2026-07-26 SWA1427 LGA → BNA Jul 26, 00:08 UTCJul 26, 03:43 UTC3h 35m
2026-07-25 SWA2928 MCO → ATL Jul 25, 21:05 UTCJul 25, 22:40 UTC1h 35m
2026-07-25 SWA2840 BUR → SFO Jul 25, 17:50 UTCJul 25, 20:00 UTC2h 10m
2026-07-25 SWA2086 GEG → PHX Jul 25, 14:45 UTCJul 25, 16:15 UTC1h 30m
2026-07-25 SWA2086 GEG → PHX Jul 25, 14:44 UTCJul 25, 16:09 UTC1h 25m
2026-07-25 SWA3312 BWI → MSY Jul 25, 12:40 UTCJul 25, 13:50 UTC1h 10m
2026-07-25 SWA2445 BWI → TPA Jul 25, 10:50 UTCJul 25, 11:35 UTC45m
2026-07-25 SWA2445 BWI → TPA Jul 25, 10:40 UTCJul 25, 11:30 UTC50m
2026-07-25 SWA4789 LAS → SMF Jul 25, 03:55 UTCJul 25, 04:35 UTC40m
2026-07-25 SWA1255 PHX → SJC Jul 25, 01:25 UTCJul 25, 02:10 UTC45m
2026-07-24 SWA2866 DEN → BUR Jul 24, 21:05 UTCJul 24, 23:45 UTC2h 40m
2026-07-24 SWA4012 OAK → PDX Jul 24, 16:15 UTCJul 24, 18:45 UTC2h 30m
2026-07-24 SWA935 SJC → MDW Jul 24, 11:45 UTCJul 24, 15:05 UTC3h 20m
2026-07-24 SWA3613 HOU → ONT Jul 24, 05:40 UTCJul 24, 09:45 UTC4h 5m
2026-07-24 SWA1192 BUR → OAK Jul 24, 01:45 UTCJul 24, 03:50 UTC2h 5m
2026-07-23 SWA1192 BUR → OAK Jul 23, 20:40 UTCJul 24, 00:30 UTC3h 50m
2026-07-23 SWA2212 LAX → SJC Jul 23, 15:05 UTCJul 23, 18:30 UTC3h 25m
2026-07-23 SWA2212 LAX → SJC Jul 23, 15:03 UTCJul 23, 18:26 UTC3h 23m
2026-07-23 SWA321 DEN → CLE Jul 23, 11:05 UTCJul 23, 13:20 UTC2h 15m
2026-07-23 SWA321 DEN → CLE Jul 23, 11:00 UTCJul 23, 13:15 UTC2h 16m
2026-07-23 SWA4001 ORF → MDW Jul 23, 01:20 UTCJul 23, 02:45 UTC1h 25m
2026-07-23 SWA4001 ORF → MDW Jul 23, 01:15 UTCJul 23, 03:21 UTC2h 6m
2026-07-22 SWA686 DCA → MDW Jul 22, 23:00 UTCJul 23, 00:20 UTC1h 20m
2026-07-22 SWA3657 LAX → OAK Jul 22, 17:45 UTCJul 22, 21:45 UTC4h 0m
2026-07-22 SWA494 AUS → MDW Jul 22, 14:10 UTCJul 22, 16:10 UTC2h 0m
2026-07-22 SWA2989 SJC → SAN Jul 22, 11:10 UTCJul 22, 12:50 UTC1h 40m
2026-07-22 SWA2989 SJC → SAN Jul 22, 10:43 UTCJul 22, 12:50 UTC2h 7m
2026-07-22 SWA2224 STL → LGA Jul 22, 03:10 UTCJul 22, 05:00 UTC1h 50m
2026-07-22 SWA2224 STL → LGA Jul 22, 03:06 UTCJul 22, 04:59 UTC1h 54m
2026-07-21 SWA344 BDL → BWI Jul 21, 18:30 UTCJul 21, 19:05 UTC35m
2026-07-21 SWA344 BDL → BWI Jul 21, 18:29 UTCJul 21, 19:00 UTC31m
2026-07-20 SWA812 - Jul 20, 12:55 UTCJul 20, 21:25 UTC8h 30m
2026-07-20 SWA1153 - Jul 20, 10:10 UTCJul 20, 11:05 UTC55m
2026-07-20 SWA2337 BWI → BNA Jul 20, 02:45 UTCJul 20, 05:05 UTC2h 20m
2026-07-19 SWA4020 FLL → BWI Jul 19, 22:25 UTCJul 20, 01:30 UTC3h 5m
2026-07-19 SWA1121 SJC → BUR Jul 19, 19:05 UTCJul 19, 21:10 UTC2h 5m
2026-07-19 SWA1121 SJC → BUR Jul 19, 15:55 UTCJul 19, 17:20 UTC1h 25m
2026-07-19 SWA1461 MDW → MIA Jul 19, 13:00 UTCJul 19, 14:40 UTC1h 40m
2026-07-19 SWA3153 - Jul 19, 07:10 UTCJul 19, 10:40 UTC3h 30m
2026-07-19 SWA3692 SJC → ONT Jul 19, 03:45 UTCJul 19, 04:40 UTC55m
2026-07-18 SWA2185 LGA → BNA Jul 18, 21:45 UTCJul 19, 02:45 UTC5h 0m
2026-07-18 SWA2185 LGA → BNA Jul 18, 21:45 UTCJul 19, 02:45 UTC5h 0m
2026-07-18 SWA1608 CUN → BWI Jul 18, 16:10 UTCJul 18, 19:25 UTC3h 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 N8303R page for operator, model, and routing details .

Mode-S AB5B2B frequently asked

What is Mode-S code AB5B2B?
AB5B2B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8303R.
Where is Mode-S AB5B2B registered?
Mode-S code AB5B2B 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 AB5B2B broadcasting right now?
Mode-S AB5B2B 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 AB5B2B, octal 52655453, decimal 11,229,995.
What flights does AB5B2B operate?
Mode-S AB5B2B has broadcast 20 distinct callsigns, including SWA648, SWA3064, SWA2863, SWA2359, SWA1933.