Apparatus

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sensors Mode-S transponder

ABF9F8

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8709Q · BOEING 737 MAX 8 · operated by SOUTHWEST AIRLINES CO

Hex
ABF9F8
Octal
52774770
Decimal
11,270,648
Country
US
Tail
N8709Q
Type
B38M
No current signal · last broadcast Jul 26, 21:05 UTC
Flights observed
683
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:05 UTC

Last known position

Most recent position reported by Mode-S ABF9F8.

Country allocation

The ICAO 24-bit address ABF9F8 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
SWA2336 - 14 2026-07-20
SWA3058 - 9 2026-07-20
SWA2397 - 7 2026-07-15
SWA3263 Southwest Airlines 6 2026-05-23
SWA2523 Southwest Airlines 6 2026-07-21
SWA3599 Southwest Airlines 5 2026-05-24
SWA3089 - 5 2026-07-12
SWA2240 - 5 2026-07-16
SWA2238 Southwest Airlines 5 2026-07-24
SWA551 Southwest Airlines 4 2026-04-25
SWA4083 Southwest Airlines 4 2026-07-25
SWA370 Southwest Airlines 4 2026-06-09
SWA3601 Southwest Airlines 4 2026-05-24
SWA3352 Southwest Airlines 4 2026-06-11
SWA2257 Southwest Airlines 4 2026-05-15
SWA864 - 3 2026-06-22
SWA715 Southwest Airlines 3 2026-07-25
SWA7 Southwest Airlines 3 2026-06-04
SWA574 Southwest Airlines 3 2026-07-10
SWA4669 Southwest Airlines 3 2026-04-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA3781 BUR → OAK Jul 26, 15:40 UTCJul 26, 21:05 UTC5h 25m
2026-07-26 SWA4921 PHX → MCO Jul 26, 03:45 UTCJul 26, 04:45 UTC1h 0m
2026-07-26 SWA4921 PHX → MCO Jul 26, 03:44 UTCJul 26, 04:40 UTC56m
2026-07-25 SWA715 DAL → LGA Jul 25, 21:50 UTCJul 26, 02:35 UTC4h 45m
2026-07-25 SWA715 DAL → LGA Jul 25, 21:33 UTCJul 26, 02:25 UTC4h 52m
2026-07-25 SWA4083 LAS → OAK Jul 25, 14:30 UTCJul 25, 19:45 UTC5h 15m
2026-07-25 SWA4083 LAS → OAK Jul 25, 14:29 UTCJul 25, 19:50 UTC5h 21m
2026-07-25 SWA4082 MIA → IND Jul 25, 11:00 UTCJul 25, 12:00 UTC1h 0m
2026-07-25 SWA3097 DEN → ORD Jul 25, 03:42 UTCJul 25, 03:59 UTC17m
2026-07-25 SWA1932 SJC → LAS Jul 25, 02:10 UTCJul 25, 02:30 UTC20m
2026-07-25 SWA676 HOU → ATL Jul 25, 00:45 UTCJul 25, 01:05 UTC20m
2026-07-24 SWA1930 SJC → PHX Jul 24, 22:40 UTCJul 24, 23:00 UTC20m
2026-07-24 SWA1930 SJC → PHX Jul 24, 22:35 UTCJul 24, 22:58 UTC23m
2026-07-24 SWA2238 PDX → PHX Jul 24, 15:35 UTCJul 24, 21:25 UTC5h 50m
2026-07-24 SWA1915 BUR → DAL Jul 24, 11:25 UTCJul 24, 12:25 UTC1h 0m
2026-07-24 SWA1915 BUR → DAL Jul 24, 07:15 UTCJul 24, 07:25 UTC10m
2026-07-23 SWA3274 - Jul 23, 16:55 UTCJul 23, 23:00 UTC6h 5m
2026-07-23 SWA3274 PHX → HNL Jul 23, 16:51 UTCJul 23, 23:00 UTC6h 9m
2026-07-23 SWA3887 MDW → PHL Jul 23, 14:20 UTCJul 23, 15:15 UTC55m
2026-07-23 SWA3837 AUS → MCI Jul 23, 02:55 UTCJul 23, 04:00 UTC1h 5m
2026-07-23 SWA3837 AUS → MCI Jul 23, 02:54 UTCJul 23, 04:02 UTC1h 8m
2026-07-23 SWA4897 ORD → DAL Jul 23, 01:05 UTCJul 23, 02:10 UTC1h 5m
2026-07-23 SWA4897 ORD → DAL Jul 23, 01:04 UTCJul 23, 02:01 UTC57m
2026-07-22 SWA4413 BOI → DEN Jul 22, 20:30 UTCJul 23, 00:15 UTC3h 45m
2026-07-22 SWA2475 SJC → BUR Jul 22, 17:40 UTCJul 22, 19:15 UTC1h 35m
2026-07-22 SWA1387 SJC → LIH Jul 22, 14:35 UTCJul 22, 16:25 UTC1h 50m
2026-07-22 SWA1387 SJC → LIH Jul 22, 12:15 UTCJul 22, 13:20 UTC1h 5m
2026-07-22 SWA4872 BUR → PHX Jul 22, 11:10 UTCJul 22, 11:20 UTC10m
2026-07-22 SWA2881 OAK → SEA Jul 22, 00:55 UTCJul 22, 03:20 UTC2h 25m
2026-07-21 SWA4357 SRQ → CMH Jul 21, 19:00 UTCJul 21, 22:40 UTC3h 40m
2026-07-21 SWA943 SJC → BNA Jul 21, 16:05 UTCJul 21, 17:35 UTC1h 30m
2026-07-21 SWA1036 OAK → PDX Jul 21, 13:40 UTCJul 21, 14:50 UTC1h 10m
2026-07-21 SWA2523 SJC → SNA Jul 21, 07:35 UTCJul 21, 12:15 UTC4h 40m
2026-07-20 SWA3058 OAK → LIH Jul 20, 21:02 UTCJul 21, 02:20 UTC5h 18m
2026-07-20 SWA3058 - Jul 20, 21:05 UTCJul 21, 02:10 UTC5h 4m
2026-07-20 SWA2336 SBA → OAK Jul 20, 18:32 UTCJul 20, 19:16 UTC44m
2026-07-20 SWA2336 SBA → OAK Jul 20, 18:35 UTCJul 20, 19:20 UTC45m
2026-07-20 SWA2336 - Jul 20, 16:40 UTCJul 20, 17:35 UTC55m
2026-07-20 SWA2336 - Jul 20, 14:40 UTCJul 20, 15:20 UTC40m
2026-07-20 SWA1379 DAL → PHX Jul 20, 11:10 UTCJul 20, 13:05 UTC1h 55m
2026-07-20 SWA1379 DAL → PHX Jul 20, 11:07 UTCJul 20, 13:07 UTC2h 0m
2026-07-20 SWA60 HOU → DAL Jul 20, 03:00 UTCJul 20, 03:45 UTC45m
2026-07-19 SWA1203 - Jul 19, 19:15 UTCJul 19, 22:30 UTC3h 15m
2026-07-19 SWA602 BWI → SJO Jul 19, 13:50 UTCJul 19, 18:03 UTC4h 13m
2026-07-19 SWA602 - Jul 19, 13:50 UTCJul 19, 16:00 UTC2h 10m
2026-07-19 SWA462 MDW → LAS Jul 19, 10:55 UTCJul 19, 12:15 UTC1h 20m
2026-07-19 SWA4830 MCO → BNA Jul 19, 02:45 UTCJul 19, 04:15 UTC1h 30m
2026-07-19 SWA4830 MCO → BNA Jul 19, 02:41 UTCJul 19, 04:04 UTC1h 23m
2026-07-18 SWA571 BNA → MCO Jul 18, 23:55 UTCJul 19, 01:25 UTC1h 30m
2026-07-18 SWA571 BNA → MCO Jul 18, 23:53 UTCJul 19, 01:22 UTC1h 30m

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 N8709Q page for operator, model, and routing details .

Mode-S ABF9F8 frequently asked

What is Mode-S code ABF9F8?
ABF9F8 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8709Q.
Where is Mode-S ABF9F8 registered?
Mode-S code ABF9F8 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 ABF9F8 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABF9F8, octal 52774770, decimal 11,270,648.
What flights does ABF9F8 operate?
Mode-S ABF9F8 has broadcast 20 distinct callsigns, including SWA2336, SWA3058, SWA2397, SWA3263, SWA2523.