Apparatus

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sensors Mode-S transponder

ABB5BF

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8536Z · BOEING 737-800 · operated by SOUTHWEST AIRLINES CO

Hex
ABB5BF
Octal
52732677
Decimal
11,253,183
Country
US
Tail
N8536Z
Type
B738
No current signal · last broadcast 22d ago
Flights observed
423
Distinct callsigns
20
Country
US
Last broadcast
22d ago

Last known position

Most recent position reported by Mode-S ABB5BF.

Country allocation

The ICAO 24-bit address ABB5BF 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
SWA1382 Southwest Airlines 5 2026-05-31
SWA713 Southwest Airlines 4 2026-05-26
SWA505 Southwest Airlines 4 2026-05-21
SWA4806 Southwest Airlines 4 2026-04-16
SWA777 - 3 2026-04-13
SWA660 Southwest Airlines 3 2026-05-05
SWA609 Southwest Airlines 3 2026-05-08
SWA4181 Southwest Airlines 3 2026-05-03
SWA3795 Southwest Airlines 3 2026-05-11
SWA3105 Southwest Airlines 3 2026-05-17
SWA2638 Southwest Airlines 3 2026-05-16
SWA1713 Southwest Airlines 3 2026-04-18
SWA1639 Southwest Airlines 3 2026-04-16
SWA1442 Southwest Airlines 3 2026-04-27
SWA1348 Southwest Airlines 3 2026-05-07
SWA1118 Southwest Airlines 3 2026-04-29
SWA998 Southwest Airlines 2 2026-06-03
SWA973 Southwest Airlines 2 2026-06-02
SWA960 Southwest Airlines 2 2026-05-04
SWA952 Southwest Airlines 2 2026-04-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-22 SWA1647 - Jun 22, 02:04 UTCJun 22, 02:40 UTC35m
2026-06-22 SWA463 AUS → OKC Jun 22, 00:20 UTCJun 22, 01:19 UTC1h 0m
2026-06-21 SWA1268 LAS → AUS Jun 21, 20:59 UTCJun 21, 23:05 UTC2h 5m
2026-06-21 SWA1268 OAK → LAS Jun 21, 18:29 UTCJun 21, 19:34 UTC1h 5m
2026-06-21 SWA1240 - Jun 21, 14:24 UTCJun 21, 16:34 UTC2h 10m
2026-06-21 SWA1296 - Jun 21, 11:10 UTCJun 21, 12:55 UTC1h 45m
2026-06-21 SWA2053 LAS → DAL Jun 21, 02:20 UTCJun 21, 04:24 UTC2h 5m
2026-06-21 SWA2339 SJC → LAS Jun 21, 00:10 UTCJun 21, 01:10 UTC1h 0m
2026-06-20 SWA2743 DEN → SJC Jun 20, 20:46 UTCJun 20, 23:05 UTC2h 19m
2026-06-20 SWA2743 DEN → SJC Jun 20, 20:49 UTCJun 20, 23:10 UTC2h 20m
2026-06-20 SWA3586 BWI → PWM Jun 20, 18:04 UTCJun 20, 19:20 UTC1h 16m
2026-06-20 SWA709 MDW → MCI Jun 20, 15:58 UTCJun 20, 16:57 UTC59m
2026-06-20 SWA2835 - Jun 20, 12:34 UTCJun 20, 13:44 UTC1h 10m
2026-06-20 SWA3168 - Jun 20, 10:25 UTCJun 20, 11:05 UTC40m
2026-06-20 SWA235 - Jun 20, 01:19 UTCJun 20, 03:34 UTC2h 15m
2026-06-19 SWA235 LAS → BWI Jun 19, 19:59 UTCJun 19, 23:54 UTC3h 55m
2026-06-19 SWA1136 BZN → LAS Jun 19, 16:51 UTCJun 19, 18:27 UTC1h 36m
2026-06-19 SWA1136 DEN → LAS Jun 19, 14:39 UTCJun 19, 18:30 UTC3h 50m
2026-06-19 SWA800 MDW → PIT Jun 19, 10:35 UTCJun 19, 12:59 UTC2h 25m
2026-06-19 SWA1278 DAL → BNA Jun 19, 04:39 UTCJun 19, 05:59 UTC1h 20m
2026-06-19 SWA3597 - Jun 19, 01:59 UTCJun 19, 03:15 UTC1h 15m
2026-06-19 SWA3597 STL → DAL Jun 19, 01:56 UTCJun 19, 03:12 UTC1h 16m
2026-06-19 SWA770 - Jun 19, 00:05 UTCJun 19, 00:59 UTC54m
2026-06-18 SWA3490 MDW → MCI Jun 18, 21:40 UTCJun 18, 22:55 UTC1h 15m
2026-06-18 SWA3490 MDW → MCI Jun 18, 21:39 UTCJun 18, 22:51 UTC1h 12m
2026-06-18 SWA1691 DEN → RDU Jun 18, 17:50 UTCJun 18, 20:35 UTC2h 45m
2026-06-18 SWA935 SJC → MDW Jun 18, 12:15 UTCJun 18, 16:25 UTC4h 10m
2026-06-18 SWA3735 SLC → BWI Jun 18, 05:45 UTCJun 18, 09:00 UTC3h 15m
2026-06-18 SWA3735 SLC → BWI Jun 18, 05:43 UTCJun 18, 09:01 UTC3h 18m
2026-06-18 SWA254 PHX → SLC Jun 18, 03:35 UTCJun 18, 04:50 UTC1h 15m
2026-06-17 SWA3275 - Jun 17, 22:25 UTCJun 18, 02:30 UTC4h 5m
2026-06-17 SWA3275 PIT → PHX Jun 17, 22:22 UTCJun 18, 02:29 UTC4h 7m
2026-06-17 SWA3033 - Jun 17, 18:40 UTCJun 17, 20:50 UTC2h 10m
2026-06-17 SWA4353 OAK → PSP Jun 17, 15:55 UTCJun 17, 17:25 UTC1h 30m
2026-06-17 SWA4353 OAK → PSP Jun 17, 13:50 UTCJun 17, 14:40 UTC50m
2026-06-17 SWA4507 AUS → OAK Jun 17, 02:15 UTCJun 17, 05:10 UTC2h 55m
2026-06-16 SWA1249 - Jun 16, 22:00 UTCJun 17, 01:05 UTC3h 5m
2026-06-16 SWA1249 MDW → PHX Jun 16, 21:58 UTCJun 17, 01:04 UTC3h 7m
2026-06-16 SWA1162 SAT → HOU Jun 16, 19:35 UTCJun 16, 20:50 UTC1h 16m
2026-06-16 SWA1162 SAT → HOU Jun 16, 19:34 UTCJun 16, 20:27 UTC53m
2026-06-16 SWA3887 - Jun 16, 15:20 UTCJun 16, 18:45 UTC3h 25m
2026-06-16 SWA4123 - Jun 16, 12:00 UTCJun 16, 14:00 UTC2h 0m
2026-06-16 SWA3979 - Jun 16, 04:15 UTCJun 16, 05:59 UTC1h 45m
2026-06-16 SWA3979 STL → SAT Jun 16, 04:13 UTCJun 16, 05:55 UTC1h 42m
2026-06-16 SWA3353 PHX → SFO Jun 16, 00:40 UTCJun 16, 03:04 UTC2h 25m
2026-06-15 SWA8509 SFO → OAK Jun 15, 18:15 UTCJun 15, 20:54 UTC2h 40m
2026-06-15 SWA8509 SFO → OAK Jun 15, 18:11 UTCJun 15, 20:49 UTC2h 38m
2026-06-04 SWA8501 PAE → OAK Jun 4, 13:30 UTCJun 4, 15:12 UTC1h 42m
2026-06-04 SWA8501 PAE → OAK Jun 4, 13:35 UTCJun 4, 15:15 UTC1h 40m
2026-06-04 SWA1969 BNA → DCA Jun 4, 02:55 UTCJun 4, 05:00 UTC2h 5m

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 N8536Z page for operator, model, and routing details .

Mode-S ABB5BF frequently asked

What is Mode-S code ABB5BF?
ABB5BF is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8536Z.
Where is Mode-S ABB5BF registered?
Mode-S code ABB5BF 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 ABB5BF broadcasting right now?
No active broadcast right now. Last signal was 22d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABB5BF, octal 52732677, decimal 11,253,183.
What flights does ABB5BF operate?
Mode-S ABB5BF has broadcast 20 distinct callsigns, including SWA1382, SWA713, SWA505, SWA4806, SWA777.