Apparatus

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sensors Mode-S transponder

ABB507

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8531Q · BOEING 737-800 · operated by SOUTHWEST AIRLINES CO

Hex
ABB507
Octal
52732407
Decimal
11,252,999
Country
US
Tail
N8531Q
Type
B738
No current signal · last broadcast Jul 26, 21:45 UTC
Flights observed
578
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:45 UTC

Last known position

Most recent position reported by Mode-S ABB507.

Country allocation

The ICAO 24-bit address ABB507 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
SWA586 Southwest Airlines 4 2026-07-21
SWA4177 - 4 2026-06-23
SWA4160 - 4 2026-07-18
SWA143 Southwest Airlines 4 2026-06-14
SWA1181 - 4 2026-07-13
SWA993 - 3 2026-06-30
SWA779 - 3 2026-07-19
SWA4738 - 3 2026-07-08
SWA4613 - 3 2026-07-07
SWA4099 Southwest Airlines 3 2026-07-23
SWA3890 - 3 2026-07-21
SWA3579 Southwest Airlines 3 2026-06-08
SWA3397 - 3 2026-07-14
SWA3199 Southwest Airlines 3 2026-06-02
SWA3137 Southwest Airlines 3 2026-05-18
SWA3114 Southwest Airlines 3 2026-06-08
SWA3021 - 3 2026-06-18
SWA29 Southwest Airlines 3 2026-05-08
SWA274 - 3 2026-07-06
SWA2660 Southwest Airlines 3 2026-06-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA204 PIT → STL Jul 26, 18:20 UTCJul 26, 21:45 UTC3h 25m
2026-07-26 SWA2506 OGG → OAK Jul 26, 15:35 UTCJul 26, 16:50 UTC1h 15m
2026-07-26 SWA852 LAS → SJC Jul 26, 13:05 UTCJul 26, 14:30 UTC1h 25m
2026-07-26 SWA2105 SJC → SNA Jul 26, 10:05 UTCJul 26, 11:30 UTC1h 25m
2026-07-26 SWA4241 BUR → LAS Jul 26, 01:50 UTCJul 26, 03:10 UTC1h 20m
2026-07-26 SWA4241 BUR → LAS Jul 26, 01:48 UTCJul 26, 03:05 UTC1h 17m
2026-07-25 SWA428 LAS → BUR Jul 25, 22:25 UTCJul 26, 00:15 UTC1h 50m
2026-07-25 SWA266 BUR → SJC Jul 25, 19:30 UTCJul 25, 21:20 UTC1h 50m
2026-07-25 SWA3392 BNA → BOS Jul 25, 16:55 UTCJul 25, 18:10 UTC1h 15m
2026-07-25 SWA3392 BNA → BOS Jul 25, 16:54 UTCJul 25, 18:04 UTC1h 10m
2026-07-25 SWA2199 PWM → BWI Jul 25, 14:15 UTCJul 25, 15:55 UTC1h 40m
2026-07-25 SWA3649 SJC → PDX Jul 25, 08:10 UTCJul 25, 11:50 UTC3h 40m
2026-07-25 SWA2429 BUR → SFO Jul 25, 05:40 UTCJul 25, 06:50 UTC1h 10m
2026-07-25 SWA2438 LAX → DEN Jul 25, 02:25 UTCJul 25, 03:20 UTC55m
2026-07-24 SWA2861 DEN → SAN Jul 24, 22:20 UTCJul 25, 01:20 UTC3h 0m
2026-07-24 SWA3610 BWI → PVD Jul 24, 20:15 UTCJul 24, 21:05 UTC50m
2026-07-24 SWA3610 BWI → PVD Jul 24, 20:14 UTCJul 24, 21:04 UTC50m
2026-07-24 SWA4473 STL → SEA Jul 24, 18:15 UTCJul 24, 19:05 UTC50m
2026-07-24 SWA2270 SNA → HOU Jul 24, 13:30 UTCJul 24, 16:30 UTC3h 0m
2026-07-24 SWA102 DEN → ORD Jul 24, 04:20 UTCJul 24, 06:35 UTC2h 15m
2026-07-24 SWA3208 BUR → PHX Jul 24, 00:55 UTCJul 24, 02:50 UTC1h 55m
2026-07-23 SWA3208 BUR → PHX Jul 23, 21:40 UTCJul 23, 23:50 UTC2h 10m
2026-07-23 SWA4271 DEN → PDX Jul 23, 18:15 UTCJul 23, 20:30 UTC2h 15m
2026-07-23 SWA4099 KOA → LAX Jul 23, 15:00 UTCJul 23, 17:05 UTC2h 5m
2026-07-23 SWA4099 KOA → LAX Jul 23, 12:25 UTCJul 23, 13:30 UTC1h 5m
2026-07-23 SWA4099 KOA → LAX Jul 23, 12:25 UTCJul 23, 13:28 UTC1h 3m
2026-07-23 SWA1744 HOU → LGA Jul 23, 04:35 UTCJul 23, 06:35 UTC2h 0m
2026-07-23 SWA1744 HOU → LGA Jul 23, 04:33 UTCJul 23, 06:31 UTC1h 58m
2026-07-22 SWA470 LGB → OAK Jul 22, 23:05 UTCJul 23, 02:20 UTC3h 15m
2026-07-22 SWA470 LGB → OAK Jul 22, 19:15 UTCJul 22, 20:15 UTC1h 0m
2026-07-22 SWA4003 TPA → BNA Jul 22, 16:10 UTCJul 22, 17:40 UTC1h 30m
2026-07-22 SWA1785 LAS → SFO Jul 22, 14:20 UTCJul 22, 15:00 UTC40m
2026-07-22 SWA4627 PIT → TPA Jul 22, 11:10 UTCJul 22, 13:10 UTC2h 0m
2026-07-22 SWA2351 - Jul 22, 04:40 UTCJul 22, 05:25 UTC45m
2026-07-22 SWA2351 MCO → BWI Jul 22, 04:35 UTCJul 22, 06:22 UTC1h 48m
2026-07-21 SWA3376 MSP → MDW Jul 21, 20:40 UTCJul 21, 22:30 UTC1h 50m
2026-07-21 SWA4012 - Jul 21, 16:50 UTCJul 21, 19:20 UTC2h 30m
2026-07-21 SWA4012 DEN → PIT Jul 21, 16:45 UTCJul 21, 19:19 UTC2h 34m
2026-07-21 SWA3890 - Jul 21, 13:40 UTCJul 21, 15:25 UTC1h 45m
2026-07-21 SWA586 OAK → ONT Jul 21, 02:25 UTCJul 21, 05:10 UTC2h 45m
2026-07-21 SWA586 OAK → ONT Jul 21, 02:24 UTCJul 21, 05:10 UTC2h 46m
2026-07-21 SWA586 OAK → ONT Jul 21, 01:00 UTCJul 21, 01:40 UTC40m
2026-07-20 SWA586 OAK → ONT Jul 20, 21:25 UTCJul 21, 00:00 UTC2h 34m
2026-07-20 SWA3507 - Jul 20, 18:50 UTCJul 20, 19:35 UTC45m
2026-07-20 SWA3507 SJC → SAN Jul 20, 16:45 UTCJul 20, 17:50 UTC1h 5m
2026-07-20 SWA3536 SAN → SJC Jul 20, 13:45 UTCJul 20, 14:44 UTC59m
2026-07-20 SWA3536 - Jul 20, 13:45 UTCJul 20, 14:45 UTC1h 0m
2026-07-20 SWA1704 - Jul 20, 03:40 UTCJul 20, 05:30 UTC1h 50m
2026-07-20 SWA1166 MCI → LGA Jul 20, 00:05 UTCJul 20, 02:10 UTC2h 5m
2026-07-20 SWA1166 MCI → LGA Jul 20, 00:03 UTCJul 20, 02:03 UTC2h 1m

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 N8531Q page for operator, model, and routing details .

Mode-S ABB507 frequently asked

What is Mode-S code ABB507?
ABB507 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8531Q.
Where is Mode-S ABB507 registered?
Mode-S code ABB507 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 ABB507 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABB507, octal 52732407, decimal 11,252,999.
What flights does ABB507 operate?
Mode-S ABB507 has broadcast 20 distinct callsigns, including SWA586, SWA4177, SWA4160, SWA143, SWA1181.