sensors Mode-S transponder

AC62F3

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8979L · BOEING 737 MAX 8 · operated by SOUTHWEST AIRLINES CO

Hex
AC62F3
Octal
53061363
Decimal
11,297,523
Country
US
Tail
N8979L
Type
B38M
Transponder active on ground
Flights observed
17
Distinct callsigns
7
Country
US
Last broadcast
14h ago

Last known position

Most recent position reported by Mode-S AC62F3.

Country allocation

The ICAO 24-bit address AC62F3 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
SWA1709 - 5 2026-04-13
SWA3445 - 3 2026-04-13
SWA2625 - 3 2026-04-13
SWA4292 - 2 2026-04-12
SWA1381 Southwest Airlines 2 2026-04-13
SWA2924 Southwest Airlines 1 2026-04-13
SWA2659 - 1 2026-04-14

Recent flights last 17

DateFlightRouteTakeoffLandingDuration
2026-04-14 SWA2659 - Apr 14, 10:50 UTCApr 14, 11:05 UTC15m
2026-04-13 SWA2924 OAK → BUR Apr 13, 21:50 UTCApr 14, 01:26 UTC3h 36m
2026-04-13 SWA1709 - Apr 13, 19:50 UTCApr 13, 20:35 UTC45m
2026-04-13 SWA1709 - Apr 13, 18:15 UTCApr 13, 20:37 UTC2h 22m
2026-04-13 SWA1709 - Apr 13, 16:15 UTCApr 13, 17:10 UTC55m
2026-04-13 SWA1709 - Apr 13, 15:50 UTCApr 13, 17:10 UTC1h 20m
2026-04-13 SWA1709 - Apr 13, 14:54 UTCApr 13, 17:15 UTC2h 21m
2026-04-13 SWA3445 - Apr 13, 12:20 UTCApr 13, 13:25 UTC1h 5m
2026-04-13 SWA3445 - Apr 13, 11:55 UTCApr 13, 13:25 UTC1h 30m
2026-04-13 SWA3445 - Apr 13, 10:30 UTCApr 13, 12:15 UTC1h 45m
2026-04-13 SWA2625 - Apr 13, 04:20 UTCApr 13, 05:35 UTC1h 15m
2026-04-13 SWA2625 - Apr 13, 03:55 UTCApr 13, 05:35 UTC1h 40m
2026-04-13 SWA2625 - Apr 13, 03:38 UTCApr 13, 05:26 UTC1h 48m
2026-04-13 SWA1381 TPA → AUS Apr 13, 02:35 UTCApr 13, 02:40 UTC5m
2026-04-13 SWA1381 TPA → AUS Apr 13, 01:07 UTCApr 13, 02:17 UTC1h 10m
2026-04-12 SWA4292 LGB → DEN Apr 12, 18:02 UTCApr 12, 20:03 UTC2h 1m
2026-04-12 SWA4292 LGB → DEN Apr 12, 18:04 UTCApr 12, 19:46 UTC1h 42m

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 N8979L page for operator, model, and routing details .

Mode-S AC62F3 frequently asked

What is Mode-S code AC62F3?
AC62F3 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8979L.
Where is Mode-S AC62F3 registered?
Mode-S code AC62F3 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 AC62F3 broadcasting right now?
Mode-S AC62F3 is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC62F3, octal 53061363, decimal 11,297,523.
What flights does AC62F3 operate?
Mode-S AC62F3 has broadcast 7 distinct callsigns, including SWA1709, SWA3445, SWA2625, SWA4292, SWA1381.