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 23h ago
Flights observed
166
Distinct callsigns
20
Country
US
Last broadcast
23h ago

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
SWA3137 Southwest Airlines 3 2026-05-18
SWA29 Southwest Airlines 3 2026-05-08
SWA2220 Southwest Airlines 3 2026-05-18
SWA1933 Southwest Airlines 3 2026-05-09
SWA191 Southwest Airlines 3 2026-05-21
SWA973 Southwest Airlines 2 2026-05-11
SWA930 Southwest Airlines 2 2026-05-09
SWA925 Southwest Airlines 2 2026-05-26
SWA918 Southwest Airlines 2 2026-05-24
SWA856 Southwest Airlines 2 2026-05-21
SWA833 Southwest Airlines 2 2026-05-12
SWA562 Southwest Airlines 2 2026-05-19
SWA4646 Southwest Airlines 2 2026-05-17
SWA4521 Southwest Airlines 2 2026-05-19
SWA4518 Southwest Airlines 2 2026-05-14
SWA4369 Southwest Airlines 2 2026-05-22
SWA4364 Southwest Airlines 2 2026-05-22
SWA4221 Southwest Airlines 2 2026-05-07
SWA4162 Southwest Airlines 2 2026-05-15
SWA3887 Southwest Airlines 2 2026-05-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 SWA1640 BWI → RDU May 29, 00:15 UTCMay 29, 01:40 UTC1h 25m
2026-05-28 SWA2686 BWI → PWM May 28, 21:30 UTCMay 28, 22:55 UTC1h 25m
2026-05-28 SWA2686 BWI → PWM May 28, 18:15 UTCMay 28, 20:25 UTC2h 10m
2026-05-28 SWA1526 SJC → BUR May 28, 14:55 UTCMay 28, 16:25 UTC1h 30m
2026-05-28 SWA1704 ORD → MCO May 28, 10:30 UTCMay 28, 13:20 UTC2h 50m
2026-05-28 SWA1704 ORD → MCO May 28, 10:25 UTCMay 28, 13:18 UTC2h 53m
2026-05-28 SWA1181 BNA → MDW May 28, 00:30 UTCMay 28, 01:30 UTC1h 0m
2026-05-27 SWA2743 STL → MDW May 27, 21:20 UTCMay 27, 23:25 UTC2h 5m
2026-05-27 SWA2751 HOU → MDW May 27, 17:50 UTCMay 27, 20:00 UTC2h 10m
2026-05-27 SWA3285 LAS → LBB May 27, 13:10 UTCMay 27, 16:25 UTC3h 15m
2026-05-27 SWA3285 LAS → LBB May 27, 13:09 UTCMay 27, 16:23 UTC3h 14m
2026-05-27 SWA2825 BDL → BWI May 27, 10:15 UTCMay 27, 11:40 UTC1h 25m
2026-05-27 SWA1103 OAK → MDW May 27, 02:30 UTCMay 27, 03:53 UTC1h 23m
2026-05-27 SWA1459 SFO → BUR May 27, 00:10 UTCMay 27, 00:55 UTC45m
2026-05-26 SWA1459 SFO → BUR May 26, 20:45 UTCMay 26, 22:59 UTC2h 15m
2026-05-26 SWA130 MDW → MCO May 26, 15:49 UTCMay 26, 19:10 UTC3h 20m
2026-05-26 SWA925 BOS → MDW May 26, 12:00 UTCMay 26, 14:45 UTC2h 45m
2026-05-26 SWA925 BOS → MDW May 26, 11:55 UTCMay 26, 14:40 UTC2h 45m
2026-05-26 SWA4497 BUF → FLL May 26, 03:05 UTCMay 26, 03:55 UTC50m
2026-05-26 SWA3211 SJC → SAN May 26, 00:00 UTCMay 26, 01:55 UTC1h 55m
2026-05-24 SWA907 MBJ → BWI May 24, 18:25 UTCMay 24, 20:55 UTC2h 30m
2026-05-24 SWA918 BWI → MBJ May 24, 13:10 UTCMay 24, 15:30 UTC2h 20m
2026-05-24 SWA918 BWI → MBJ May 24, 13:07 UTCMay 24, 16:16 UTC3h 9m
2026-05-24 SWA993 LAS → OAK May 24, 10:10 UTCMay 24, 11:05 UTC55m
2026-05-24 SWA3161 SAN → OAK May 24, 02:20 UTCMay 24, 03:05 UTC45m
2026-05-23 SWA3161 SAN → OAK May 23, 23:25 UTCMay 24, 01:25 UTC2h 0m
2026-05-23 SWA2732 BNA → LAS May 23, 19:25 UTCMay 23, 22:15 UTC2h 50m
2026-05-23 SWA3289 BWI → SAT May 23, 16:50 UTCMay 23, 18:35 UTC1h 45m
2026-05-23 SWA3233 TPA → CMH May 23, 14:55 UTCMay 23, 15:55 UTC1h 0m
2026-05-23 SWA4216 BNA → TPA May 23, 07:45 UTCMay 23, 11:20 UTC3h 35m
2026-05-23 SWA2893 SJC → LAS May 23, 05:35 UTCMay 23, 06:30 UTC55m
2026-05-23 SWA2893 SJC → LAS May 23, 02:30 UTCMay 23, 03:30 UTC1h 0m
2026-05-22 SWA4364 MKE → MCO May 22, 23:15 UTCMay 23, 00:45 UTC1h 30m
2026-05-22 SWA4364 MKE → MCO May 22, 23:15 UTCMay 23, 00:41 UTC1h 26m
2026-05-22 SWA4130 MSY → LAS May 22, 21:10 UTCMay 22, 22:20 UTC1h 10m
2026-05-22 SWA4369 PHX → SJC May 22, 19:00 UTCMay 22, 20:05 UTC1h 5m
2026-05-22 SWA4369 PHX → SJC May 22, 18:57 UTCMay 22, 20:07 UTC1h 10m
2026-05-22 SWA2113 PDX → SMF May 22, 13:55 UTCMay 22, 17:40 UTC3h 45m
2026-05-22 SWA806 SFO → BUR May 22, 12:05 UTCMay 22, 12:50 UTC45m
2026-05-22 SWA4314 EUG → OAK May 22, 06:40 UTCMay 22, 10:30 UTC3h 50m
2026-05-22 SWA4312 SJC → SEA May 22, 04:20 UTCMay 22, 05:35 UTC1h 15m
2026-05-22 SWA945 SAN → OAK May 22, 02:00 UTCMay 22, 03:00 UTC1h 0m
2026-05-21 SWA3182 MYR → MDW May 21, 22:30 UTCMay 22, 00:40 UTC2h 10m
2026-05-21 SWA191 ONT → SJC May 21, 17:25 UTCMay 21, 20:25 UTC3h 0m
2026-05-21 SWA191 ONT → SJC May 21, 17:23 UTCMay 21, 20:21 UTC2h 59m
2026-05-21 SWA191 ONT → SJC May 21, 15:25 UTCMay 21, 16:15 UTC50m
2026-05-21 SWA1466 RNO → LAS May 21, 13:25 UTCMay 21, 14:05 UTC40m
2026-05-21 SWA1466 RNO → LAS May 21, 13:20 UTCMay 21, 14:16 UTC56m
2026-05-21 SWA856 PIT → DAL May 21, 11:15 UTCMay 21, 11:45 UTC30m
2026-05-21 SWA856 PIT → DAL May 21, 11:12 UTCMay 21, 12:07 UTC55m

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 23h ago.
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 SWA3137, SWA29, SWA2220, SWA1933, SWA191.