Apparatus

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sensors Mode-S transponder

ABE79D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8661A · BOEING 737-800 · operated by SOUTHWEST AIRLINES CO

Hex
ABE79D
Octal
52763635
Decimal
11,265,949
Country
US
Tail
N8661A
Type
B738
No current signal · last broadcast Jul 26, 19:55 UTC
Flights observed
690
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 19:55 UTC

Last known position

Most recent position reported by Mode-S ABE79D.

Country allocation

The ICAO 24-bit address ABE79D 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
SWA416 - 4 2026-07-18
SWA3022 Southwest Airlines 4 2026-05-20
SWA2770 Southwest Airlines 4 2026-05-11
SWA2606 Southwest Airlines 4 2026-05-27
SWA2333 - 4 2026-07-17
SWA189 - 4 2026-07-18
SWA1268 - 4 2026-07-12
SWA1267 Southwest Airlines 4 2026-06-07
SWA1137 - 4 2026-07-01
SWA113 Southwest Airlines 4 2026-05-30
SWA932 - 3 2026-06-29
SWA712 Southwest Airlines 3 2026-04-14
SWA550 - 3 2026-07-16
SWA4879 - 3 2026-07-17
SWA437 - 3 2026-07-14
SWA4088 Southwest Airlines 3 2026-04-15
SWA4020 Southwest Airlines 3 2026-05-01
SWA3964 Southwest Airlines 3 2026-05-13
SWA3843 Southwest Airlines 3 2026-05-08
SWA369 Southwest Airlines 3 2026-05-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA2083 PDX → SJC Jul 26, 19:15 UTCJul 26, 19:55 UTC40m
2026-07-26 SWA4407 FLL → MDW Jul 26, 17:15 UTCJul 26, 18:10 UTC55m
2026-07-26 SWA4407 FLL → MDW Jul 26, 12:35 UTCJul 26, 15:55 UTC3h 20m
2026-07-26 SWA2396 BWI → LAS Jul 26, 03:50 UTCJul 26, 07:45 UTC3h 56m
2026-07-26 SWA2396 BWI → LAS Jul 26, 03:48 UTCJul 26, 07:36 UTC3h 48m
2026-07-25 SWA5063 BNA → BWI Jul 25, 23:20 UTCJul 26, 01:10 UTC1h 50m
2026-07-25 SWA5062 DAL → MCO Jul 25, 20:00 UTCJul 25, 21:55 UTC1h 55m
2026-07-25 SWA5062 DAL → MCO Jul 25, 19:55 UTCJul 25, 21:50 UTC1h 55m
2026-07-25 SWA5061 SJC → LAS Jul 25, 16:55 UTCJul 25, 18:30 UTC1h 35m
2026-07-25 SWA5060 BNA → BWI Jul 25, 14:10 UTCJul 25, 15:50 UTC1h 40m
2026-07-25 SWA5060 BNA → BWI Jul 25, 14:09 UTCJul 25, 15:40 UTC1h 31m
2026-07-25 SWA4675 SRQ → MDW Jul 25, 04:00 UTCJul 25, 06:50 UTC2h 50m
2026-07-25 SWA391 OAK → BUR Jul 25, 00:05 UTCJul 25, 02:30 UTC2h 25m
2026-07-24 SWA2598 LAX → OAK Jul 24, 20:55 UTCJul 24, 22:55 UTC2h 0m
2026-07-24 SWA293 PHX → DEN Jul 24, 17:55 UTCJul 24, 18:55 UTC1h 0m
2026-07-24 SWA292 MCO → MBJ Jul 24, 14:04 UTCJul 24, 15:40 UTC1h 36m
2026-07-24 SWA292 MCO → MBJ Jul 24, 14:05 UTCJul 24, 14:50 UTC45m
2026-07-24 SWA2815 BUR → OAK Jul 24, 10:25 UTCJul 24, 12:30 UTC2h 5m
2026-07-24 SWA2815 BUR → OAK Jul 24, 10:24 UTCJul 24, 12:25 UTC2h 1m
2026-07-24 SWA2469 SAN → OAK Jul 24, 02:25 UTCJul 24, 04:10 UTC1h 45m
2026-07-24 SWA2469 SAN → OAK Jul 24, 02:21 UTCJul 24, 04:10 UTC1h 49m
2026-07-23 SWA4233 PDX → SJC Jul 23, 21:40 UTCJul 24, 00:55 UTC3h 15m
2026-07-23 SWA2631 SNA → OAK Jul 23, 16:45 UTCJul 23, 20:05 UTC3h 20m
2026-07-23 SWA2631 SNA → OAK Jul 23, 16:44 UTCJul 23, 19:59 UTC3h 15m
2026-07-23 SWA3242 SFO → LAS Jul 23, 14:05 UTCJul 23, 15:35 UTC1h 30m
2026-07-23 SWA4756 BNA → MSY Jul 23, 02:50 UTCJul 23, 03:45 UTC55m
2026-07-23 SWA4756 BNA → MSY Jul 23, 02:49 UTCJul 23, 03:41 UTC52m
2026-07-23 SWA3977 MSY → HOU Jul 23, 00:15 UTCJul 23, 01:55 UTC1h 40m
2026-07-22 SWA2689 - Jul 22, 20:20 UTCJul 22, 23:00 UTC2h 40m
2026-07-22 SWA2689 - Jul 22, 17:55 UTCJul 22, 19:05 UTC1h 10m
2026-07-22 SWA2689 - Jul 22, 14:35 UTCJul 22, 15:45 UTC1h 10m
2026-07-22 SWA1769 - Jul 22, 11:40 UTCJul 22, 13:05 UTC1h 25m
2026-07-22 SWA2940 - Jul 22, 02:20 UTCJul 22, 03:35 UTC1h 15m
2026-07-21 SWA3044 PHX → OAK Jul 21, 22:25 UTCJul 22, 01:00 UTC2h 35m
2026-07-21 SWA2676 - Jul 21, 17:45 UTCJul 21, 21:00 UTC3h 15m
2026-07-21 SWA4572 HOU → LAS Jul 21, 13:35 UTCJul 21, 16:35 UTC3h 0m
2026-07-20 SWA2564 - Jul 20, 23:10 UTCJul 21, 01:25 UTC2h 15m
2026-07-20 SWA3798 OAK → LAS Jul 20, 19:05 UTCJul 20, 21:55 UTC2h 50m
2026-07-20 SWA3798 OAK → LAS Jul 20, 19:01 UTCJul 20, 21:55 UTC2h 54m
2026-07-20 SWA1122 - Jul 20, 17:00 UTCJul 20, 18:00 UTC1h 0m
2026-07-20 SWA1149 - Jul 20, 13:05 UTCJul 20, 15:25 UTC2h 20m
2026-07-20 SWA3133 - Jul 20, 04:20 UTCJul 20, 06:35 UTC2h 15m
2026-07-20 SWA3133 MCO → MCI Jul 20, 04:17 UTCJul 20, 06:35 UTC2h 18m
2026-07-19 SWA293 PHX → DEN Jul 19, 23:00 UTCJul 19, 23:50 UTC50m
2026-07-19 SWA272 MCO → MBJ Jul 19, 19:01 UTCJul 19, 20:40 UTC1h 39m
2026-07-19 SWA272 MCO → MBJ Jul 19, 19:05 UTCJul 19, 19:55 UTC50m
2026-07-19 SWA3423 - Jul 19, 14:50 UTCJul 19, 17:00 UTC2h 10m
2026-07-19 SWA4519 LAX → BNA Jul 19, 03:25 UTCJul 19, 04:40 UTC1h 15m
2026-07-19 SWA3462 RSW → BNA Jul 19, 00:40 UTCJul 19, 02:25 UTC1h 45m
2026-07-18 SWA1542 DAL → RSW Jul 18, 21:35 UTCJul 18, 23:55 UTC2h 20m

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 N8661A page for operator, model, and routing details .

Mode-S ABE79D frequently asked

What is Mode-S code ABE79D?
ABE79D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8661A.
Where is Mode-S ABE79D registered?
Mode-S code ABE79D 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 ABE79D broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 19:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABE79D, octal 52763635, decimal 11,265,949.
What flights does ABE79D operate?
Mode-S ABE79D has broadcast 20 distinct callsigns, including SWA416, SWA3022, SWA2770, SWA2606, SWA2333.