Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

ABB9DF

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8549Z · BOEING 737-800 · operated by SOUTHWEST AIRLINES CO

Hex
ABB9DF
Octal
52734737
Decimal
11,254,239
Country
US
Tail
N8549Z
Type
B738
Broadcasting now · callsign SWA4843 · 36,000 ft
Flights observed
615
Distinct callsigns
20
Country
US
Last broadcast
Jul 20, 04:50 UTC

Current position

ABB9DF is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address ABB9DF 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
SWA2294 - 5 2026-07-14
SWA1782 - 5 2026-06-28
SWA2293 Southwest Airlines 4 2026-07-18
SWA1938 - 4 2026-04-13
SWA937 - 3 2026-07-16
SWA833 Southwest Airlines 3 2026-04-22
SWA4701 Southwest Airlines 3 2026-07-17
SWA4686 Southwest Airlines 3 2026-07-04
SWA4650 - 3 2026-04-13
SWA432 - 3 2026-06-22
SWA3658 - 3 2026-07-17
SWA3621 Southwest Airlines 3 2026-05-15
SWA3369 - 3 2026-07-15
SWA3368 Southwest Airlines 3 2026-05-31
SWA3293 - 3 2026-06-24
SWA3242 - 3 2026-06-25
SWA3001 Southwest Airlines 3 2026-05-24
SWA2592 - 3 2026-06-25
SWA232 - 3 2026-06-30
SWA2178 Southwest Airlines 3 2026-04-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-20 SWA4236 - Jul 20, 04:00 UTCJul 20, 04:45 UTC45m
2026-07-20 SWA4236 SAT → DAL Jul 20, 03:56 UTCJul 20, 04:45 UTC49m
2026-07-20 SWA4415 PHX → CLE Jul 20, 02:35 UTCJul 20, 03:15 UTC40m
2026-07-19 SWA1363 LAX → OAK Jul 19, 23:30 UTCJul 20, 00:55 UTC1h 25m
2026-07-19 SWA1363 LAX → OAK Jul 19, 21:25 UTCJul 19, 22:25 UTC1h 0m
2026-07-19 SWA1601 SAN → SJC Jul 19, 18:25 UTCJul 19, 20:20 UTC1h 55m
2026-07-19 SWA9000 - Jul 19, 15:10 UTCJul 19, 17:05 UTC1h 55m
2026-07-19 SWA1393 SJC → AUS Jul 19, 11:20 UTCJul 19, 13:45 UTC2h 25m
2026-07-19 SWA1393 SJC → AUS Jul 19, 11:17 UTCJul 19, 13:46 UTC2h 30m
2026-07-19 SWA4195 CVG → PHX Jul 19, 01:05 UTCJul 19, 01:55 UTC50m
2026-07-19 SWA4195 CVG → PHX Jul 19, 01:04 UTCJul 19, 01:55 UTC51m
2026-07-18 SWA2334 SAN → SFO Jul 18, 22:00 UTCJul 19, 00:15 UTC2h 15m
2026-07-18 SWA4972 - Jul 18, 19:40 UTCJul 18, 20:45 UTC1h 5m
2026-07-18 SWA163 - Jul 18, 17:00 UTCJul 18, 18:00 UTC1h 0m
2026-07-18 SWA163 - Jul 18, 14:05 UTCJul 18, 15:50 UTC1h 45m
2026-07-18 SWA3273 OAK → LAS Jul 18, 11:05 UTCJul 18, 12:55 UTC1h 50m
2026-07-18 SWA2293 DEN → PDX Jul 18, 00:15 UTCJul 18, 03:15 UTC3h 1m
2026-07-18 SWA2293 DEN → PDX Jul 18, 00:10 UTCJul 18, 03:12 UTC3h 2m
2026-07-17 SWA4701 OAK → LAX Jul 17, 22:35 UTCJul 17, 22:40 UTC5m
2026-07-17 SWA4701 OAK → LAX Jul 17, 19:20 UTCJul 17, 22:40 UTC3h 20m
2026-07-17 SWA4701 OAK → LAX Jul 17, 19:20 UTCJul 17, 22:18 UTC2h 58m
2026-07-17 SWA964 ORL → MSY Jul 17, 16:55 UTCJul 17, 18:15 UTC1h 20m
2026-07-17 SWA3658 - Jul 17, 13:45 UTCJul 17, 15:29 UTC1h 45m
2026-07-17 SWA3658 BWI → MCO Jul 17, 13:44 UTCJul 17, 15:26 UTC1h 42m
2026-07-17 SWA3658 MSP → BWI Jul 17, 10:35 UTCJul 17, 12:35 UTC2h 0m
2026-07-17 SWA968 BNA → MSP Jul 17, 04:49 UTCJul 17, 06:25 UTC1h 35m
2026-07-17 SWA968 BNA → MSP Jul 17, 04:45 UTCJul 17, 06:18 UTC1h 33m
2026-07-17 SWA1142 - Jul 17, 01:49 UTCJul 17, 03:05 UTC1h 15m
2026-07-17 SWA1142 CHS → BNA Jul 17, 01:48 UTCJul 17, 02:56 UTC1h 8m
2026-07-16 SWA1142 - Jul 16, 21:55 UTCJul 17, 00:50 UTC2h 55m
2026-07-16 SWA937 BWI → DEN Jul 16, 17:28 UTCJul 16, 20:34 UTC3h 6m
2026-07-16 SWA937 BWI → DEN Jul 16, 17:30 UTCJul 16, 20:35 UTC3h 5m
2026-07-16 SWA937 - Jul 16, 14:55 UTCJul 16, 15:45 UTC50m
2026-07-16 SWA4088 - Jul 16, 13:15 UTCJul 16, 14:00 UTC45m
2026-07-16 SWA4088 MDW → CLE Jul 16, 13:13 UTCJul 16, 13:58 UTC45m
2026-07-16 SWA3121 - Jul 16, 10:15 UTCJul 16, 11:45 UTC1h 30m
2026-07-16 SWA3121 OKC → MDW Jul 16, 10:10 UTCJul 16, 11:42 UTC1h 33m
2026-07-16 SWA2293 LAS → OKC Jul 16, 03:20 UTCJul 16, 05:25 UTC2h 5m
2026-07-16 SWA2293 LAS → OKC Jul 16, 03:16 UTCJul 16, 05:26 UTC2h 10m
2026-07-16 SWA4345 - Jul 16, 01:20 UTCJul 16, 02:05 UTC45m
2026-07-15 SWA3503 DEN → SAN Jul 15, 22:20 UTCJul 16, 00:15 UTC1h 55m
2026-07-15 SWA3503 DEN → SAN Jul 15, 22:17 UTCJul 16, 00:05 UTC1h 48m
2026-07-15 SWA3369 - Jul 15, 18:50 UTCJul 15, 21:00 UTC2h 10m
2026-07-15 SWA3369 - Jul 15, 18:25 UTCJul 15, 18:45 UTC20m
2026-07-15 SWA3369 PIT → DEN Jul 15, 18:21 UTCJul 15, 20:55 UTC2h 34m
2026-07-15 SWA1489 - Jul 15, 15:55 UTCJul 15, 17:05 UTC1h 10m
2026-07-15 SWA3456 DEN → BNA Jul 15, 11:46 UTCJul 15, 14:02 UTC2h 16m
2026-07-15 SWA3456 DEN → BNA Jul 15, 11:50 UTCJul 15, 14:10 UTC2h 20m
2026-07-15 SWA1975 - Jul 15, 02:40 UTCJul 15, 04:40 UTC2h 0m
2026-07-15 SWA1975 HOU → DEN Jul 15, 02:38 UTCJul 15, 04:39 UTC2h 2m

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 N8549Z page for operator, model, and routing details .

Mode-S ABB9DF frequently asked

What is Mode-S code ABB9DF?
ABB9DF is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8549Z.
Where is Mode-S ABB9DF registered?
Mode-S code ABB9DF 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 ABB9DF broadcasting right now?
Yes. Mode-S ABB9DF is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABB9DF, octal 52734737, decimal 11,254,239.
What flights does ABB9DF operate?
Mode-S ABB9DF has broadcast 20 distinct callsigns, including SWA2294, SWA1782, SWA2293, SWA1938, SWA937.