sensors Mode-S transponder

ABF308

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8693A · BOEING 737-800 · operated by SOUTHWEST AIRLINES CO

Hex
ABF308
Octal
52771410
Decimal
11,268,872
Country
US
Tail
N8693A
Type
B738
Broadcasting now · callsign SWA4073 · 36,000 ft
Flights observed
19
Distinct callsigns
7
Country
US
Last broadcast
17h ago

Current position

ABF308 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address ABF308 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 7 distinct

Callsign Airline Flights Last seen
SWA2449 - 6 2026-04-13
SWA3626 - 4 2026-04-13
SWA3262 Southwest Airlines 3 2026-04-13
SWA3037 Southwest Airlines 2 2026-04-14
SWA302 Southwest Airlines 2 2026-04-13
SWA4306 - 1 2026-04-12
SWA2382 - 1 2026-04-12

Recent flights last 19

DateFlightRouteTakeoffLandingDuration
2026-04-14 SWA3037 EUG → SJC Apr 14, 05:30 UTCApr 14, 06:03 UTC33m
2026-04-14 SWA3037 EUG → SJC Apr 14, 05:49 UTCApr 14, 06:14 UTC25m
2026-04-13 SWA2449 - Apr 13, 20:04 UTCApr 13, 23:26 UTC3h 22m
2026-04-13 SWA2449 - Apr 13, 19:29 UTCApr 13, 23:07 UTC3h 38m
2026-04-13 SWA2449 - Apr 13, 18:25 UTCApr 13, 19:05 UTC40m
2026-04-13 SWA2449 - Apr 13, 16:15 UTCApr 13, 16:55 UTC40m
2026-04-13 SWA2449 - Apr 13, 15:50 UTCApr 13, 16:55 UTC1h 5m
2026-04-13 SWA2449 - Apr 13, 14:45 UTCApr 13, 16:15 UTC1h 30m
2026-04-13 SWA3262 SJC → BOI Apr 13, 12:20 UTCApr 13, 13:20 UTC1h 0m
2026-04-13 SWA3262 SJC → BOI Apr 13, 11:55 UTCApr 13, 13:20 UTC1h 25m
2026-04-13 SWA3262 SJC → BOI Apr 13, 11:05 UTCApr 13, 12:15 UTC1h 10m
2026-04-13 SWA3626 - Apr 13, 04:20 UTCApr 13, 04:40 UTC20m
2026-04-13 SWA3626 - Apr 13, 03:55 UTCApr 13, 04:40 UTC45m
2026-04-13 SWA3626 - Apr 13, 02:50 UTCApr 13, 04:34 UTC1h 44m
2026-04-13 SWA3626 - Apr 13, 02:58 UTCApr 13, 04:34 UTC1h 36m
2026-04-13 SWA302 OAK → ONT Apr 13, 00:20 UTCApr 13, 02:00 UTC1h 40m
2026-04-12 SWA302 OAK → ONT Apr 12, 23:55 UTCApr 13, 02:00 UTC2h 5m
2026-04-12 SWA4306 - Apr 12, 18:45 UTCApr 12, 19:35 UTC50m
2026-04-12 SWA2382 - Apr 12, 17:15 UTCApr 12, 17:40 UTC25m

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 N8693A page for operator, model, and routing details .

Mode-S ABF308 frequently asked

What is Mode-S code ABF308?
ABF308 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8693A.
Where is Mode-S ABF308 registered?
Mode-S code ABF308 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 ABF308 broadcasting right now?
Yes. Mode-S ABF308 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABF308, octal 52771410, decimal 11,268,872.
What flights does ABF308 operate?
Mode-S ABF308 has broadcast 7 distinct callsigns, including SWA2449, SWA3626, SWA3262, SWA3037, SWA302.