Apparatus

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sensors Mode-S transponder

ABEFDD

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8687A · BOEING 737-800 · operated by SOUTHWEST AIRLINES CO

Hex
ABEFDD
Octal
52767735
Decimal
11,268,061
Country
US
Tail
N8687A
Type
B738
Broadcasting now · callsign SWA2344 · 4,025 ft
Flights observed
652
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Current position

ABEFDD is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address ABEFDD 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
SWA2080 - 6 2026-06-29
SWA3201 Southwest Airlines 5 2026-04-20
SWA3064 Southwest Airlines 5 2026-05-02
SWA940 - 4 2026-06-18
SWA782 - 4 2026-06-27
SWA2175 - 4 2026-07-11
SWA1643 Southwest Airlines 4 2026-04-20
SWA1580 Southwest Airlines 4 2026-06-05
SWA1101 Southwest Airlines 4 2026-04-21
SWA1039 - 4 2026-06-19
SWA972 Southwest Airlines 3 2026-04-16
SWA737 Southwest Airlines 3 2026-04-21
SWA595 - 3 2026-06-22
SWA4394 Southwest Airlines 3 2026-06-18
SWA4221 Southwest Airlines 3 2026-06-06
SWA3966 - 3 2026-04-13
SWA3721 - 3 2026-06-27
SWA3658 Southwest Airlines 3 2026-06-11
SWA3578 Southwest Airlines 3 2026-06-04
SWA3539 - 3 2026-04-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SWA1745 - Jul 14, 21:05 UTCJul 14, 22:20 UTC1h 15m
2026-07-14 SWA2774 - Jul 14, 17:05 UTCJul 14, 19:10 UTC2h 5m
2026-07-14 SWA2774 MDW → ELP Jul 14, 17:01 UTCJul 14, 19:23 UTC2h 22m
2026-07-14 SWA3483 SEA → MDW Jul 14, 12:15 UTCJul 14, 15:45 UTC3h 30m
2026-07-14 SWA3483 SEA → MDW Jul 14, 12:15 UTCJul 14, 15:44 UTC3h 30m
2026-07-14 SWA963 LAS → SEA Jul 14, 06:15 UTCJul 14, 08:00 UTC1h 45m
2026-07-14 SWA963 LAS → SEA Jul 14, 06:15 UTCJul 14, 08:00 UTC1h 45m
2026-07-14 SWA4056 - Jul 14, 01:50 UTCJul 14, 04:05 UTC2h 15m
2026-07-13 SWA4635 - Jul 13, 23:55 UTCJul 14, 01:05 UTC1h 10m
2026-07-13 SWA3264 PHX → DEN Jul 13, 21:05 UTCJul 13, 22:35 UTC1h 30m
2026-07-13 SWA4040 - Jul 13, 15:55 UTCJul 13, 20:00 UTC4h 5m
2026-07-13 SWA4040 TPA → PHX Jul 13, 15:54 UTCJul 13, 20:00 UTC4h 6m
2026-07-13 SWA1120 - Jul 13, 12:45 UTCJul 13, 14:40 UTC1h 55m
2026-07-13 SWA4534 - Jul 13, 10:00 UTCJul 13, 11:00 UTC1h 0m
2026-07-13 SWA4822 - Jul 13, 02:01 UTCJul 13, 03:10 UTC1h 10m
2026-07-13 SWA3208 - Jul 13, 00:05 UTCJul 13, 01:10 UTC1h 5m
2026-07-12 SWA2832 - Jul 12, 21:45 UTCJul 12, 22:55 UTC1h 10m
2026-07-12 SWA2832 STL → MDW Jul 12, 19:50 UTCJul 12, 20:30 UTC40m
2026-07-12 SWA2832 VPS → STL Jul 12, 16:55 UTCJul 12, 18:15 UTC1h 20m
2026-07-12 SWA4353 - Jul 12, 13:55 UTCJul 12, 14:50 UTC55m
2026-07-12 SWA3855 - Jul 12, 11:20 UTCJul 12, 12:15 UTC55m
2026-07-12 SWA3957 - Jul 12, 01:50 UTCJul 12, 02:30 UTC40m
2026-07-12 SWA770 - Jul 12, 00:10 UTCJul 12, 00:55 UTC45m
2026-07-11 SWA4005 TPA → BNA Jul 11, 21:35 UTCJul 11, 23:10 UTC1h 35m
2026-07-11 SWA2175 - Jul 11, 18:55 UTCJul 11, 19:15 UTC20m
2026-07-11 SWA2175 - Jul 11, 16:00 UTCJul 11, 18:50 UTC2h 50m
2026-07-11 SWA2175 LAS → TPA Jul 11, 16:00 UTCJul 11, 19:56 UTC3h 56m
2026-07-11 SWA2175 SEA → LAS Jul 11, 12:45 UTCJul 11, 14:45 UTC2h 0m
2026-07-11 SWA3856 - Jul 11, 05:31 UTCJul 11, 07:50 UTC2h 20m
2026-07-11 SWA505 BNA → DEN Jul 11, 00:55 UTCJul 11, 04:15 UTC3h 20m
2026-07-10 SWA1712 - Jul 10, 22:10 UTCJul 10, 22:50 UTC40m
2026-07-10 SWA1712 - Jul 10, 19:05 UTCJul 10, 21:10 UTC2h 5m
2026-07-10 SWA117 - Jul 10, 16:55 UTCJul 10, 17:50 UTC55m
2026-07-10 SWA3318 LAS → ABQ Jul 10, 14:45 UTCJul 10, 15:55 UTC1h 10m
2026-07-10 SWA3318 LAS → ABQ Jul 10, 14:45 UTCJul 10, 15:49 UTC1h 4m
2026-07-10 SWA701 - Jul 10, 12:10 UTCJul 10, 13:25 UTC1h 15m
2026-07-10 SWA185 LAS → BOI Jul 10, 06:40 UTCJul 10, 08:00 UTC1h 20m
2026-07-10 SWA1566 - Jul 10, 04:25 UTCJul 10, 05:50 UTC1h 25m
2026-07-10 SWA1974 - Jul 10, 00:45 UTCJul 10, 03:15 UTC2h 30m
2026-07-09 SWA2998 - Jul 9, 21:55 UTCJul 9, 22:40 UTC45m
2026-07-09 SWA234 ATL → MSY Jul 9, 19:39 UTCJul 9, 20:52 UTC1h 13m
2026-07-09 SWA234 ATL → MSY Jul 9, 19:40 UTCJul 9, 20:50 UTC1h 10m
2026-07-09 SWA3359 - Jul 9, 16:25 UTCJul 9, 17:45 UTC1h 20m
2026-07-09 SWA1052 - Jul 9, 14:55 UTCJul 9, 15:15 UTC20m
2026-07-09 SWA1052 BWI → PIT Jul 9, 14:50 UTCJul 9, 15:25 UTC35m
2026-07-09 SWA621 SJC → BWI Jul 9, 05:00 UTCJul 9, 10:00 UTC5h 0m
2026-07-09 SWA1351 DAL → SJC Jul 9, 00:15 UTCJul 9, 03:20 UTC3h 5m
2026-07-08 SWA1351 - Jul 8, 21:05 UTCJul 8, 23:05 UTC2h 0m
2026-07-08 SWA4036 - Jul 8, 18:10 UTCJul 8, 19:50 UTC1h 40m
2026-07-08 SWA4036 MDW → SAV Jul 8, 18:07 UTCJul 8, 19:53 UTC1h 46m

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 N8687A page for operator, model, and routing details .

Mode-S ABEFDD frequently asked

What is Mode-S code ABEFDD?
ABEFDD is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8687A.
Where is Mode-S ABEFDD registered?
Mode-S code ABEFDD 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 ABEFDD broadcasting right now?
Yes. Mode-S ABEFDD is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABEFDD, octal 52767735, decimal 11,268,061.
What flights does ABEFDD operate?
Mode-S ABEFDD has broadcast 20 distinct callsigns, including SWA2080, SWA3201, SWA3064, SWA940, SWA782.