sensors Mode-S transponder

ABE124

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8648A · BOEING 737-800 · operated by SOUTHWEST AIRLINES CO

Hex
ABE124
Octal
52760444
Decimal
11,264,292
Country
US
Tail
N8648A
Type
B738
No current signal · last broadcast 1d ago
Flights observed
13
Distinct callsigns
9
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S ABE124.

Country allocation

The ICAO 24-bit address ABE124 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 9 distinct

Callsign Airline Flights Last seen
SWA3453 - 3 2026-04-13
SWA508 Southwest Airlines 2 2026-04-13
SWA1917 - 2 2026-04-13
SWA4290 - 1 2026-04-12
SWA3974 - 1 2026-04-13
SWA2841 - 1 2026-04-13
SWA284 - 1 2026-04-13
SWA2570 - 1 2026-04-12
SWA1090 - 1 2026-04-13

Recent flights last 13

DateFlightRouteTakeoffLandingDuration
2026-04-13 SWA3974 - Apr 13, 23:16 UTCApr 14, 01:29 UTC2h 13m
2026-04-13 SWA1090 - Apr 13, 20:18 UTCApr 13, 22:19 UTC2h 1m
2026-04-13 SWA284 AUS → BNA Apr 13, 17:17 UTCApr 13, 19:02 UTC1h 45m
2026-04-13 SWA1917 - Apr 13, 15:50 UTCApr 13, 15:55 UTC5m
2026-04-13 SWA1917 MCO → AUS Apr 13, 13:35 UTCApr 13, 16:08 UTC2h 33m
2026-04-13 SWA508 SJC → PHX Apr 13, 11:55 UTCApr 13, 12:10 UTC15m
2026-04-13 SWA508 SJC → PHX Apr 13, 10:35 UTCApr 13, 12:13 UTC1h 38m
2026-04-13 SWA3453 - Apr 13, 04:20 UTCApr 13, 05:15 UTC55m
2026-04-13 SWA3453 - Apr 13, 03:55 UTCApr 13, 05:16 UTC1h 21m
2026-04-13 SWA3453 - Apr 13, 03:31 UTCApr 13, 05:03 UTC1h 32m
2026-04-13 SWA2841 - Apr 13, 01:12 UTCApr 13, 02:30 UTC1h 18m
2026-04-12 SWA4290 - Apr 12, 23:55 UTCApr 13, 00:20 UTC25m
2026-04-12 SWA2570 - Apr 12, 18:30 UTCApr 12, 20:15 UTC1h 45m

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 N8648A page for operator, model, and routing details .

Mode-S ABE124 frequently asked

What is Mode-S code ABE124?
ABE124 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8648A.
Where is Mode-S ABE124 registered?
Mode-S code ABE124 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 ABE124 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABE124, octal 52760444, decimal 11,264,292.
What flights does ABE124 operate?
Mode-S ABE124 has broadcast 9 distinct callsigns, including SWA3453, SWA508, SWA1917, SWA4290, SWA3974.