Apparatus

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sensors Mode-S transponder

AAA954

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N7861J · BOEING 737-700 · operated by SOUTHWEST AIRLINES CO

Hex
AAA954
Octal
52524524
Decimal
11,184,468
Country
US
Tail
N7861J
Type
B737
No current signal · last broadcast Jul 26, 23:00 UTC
Flights observed
769
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 23:00 UTC

Last known position

Most recent position reported by Mode-S AAA954.

Country allocation

The ICAO 24-bit address AAA954 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
SWA2099 Southwest Airlines 7 2026-04-15
SWA874 Southwest Airlines 6 2026-05-22
SWA714 Southwest Airlines 6 2026-07-19
SWA4355 Southwest Airlines 6 2026-07-16
SWA345 - 6 2026-07-11
SWA342 Southwest Airlines 6 2026-07-24
SWA920 Southwest Airlines 5 2026-05-08
SWA496 - 5 2026-07-13
SWA3463 Southwest Airlines 5 2026-05-08
SWA2157 Southwest Airlines 5 2026-05-17
SWA423 Southwest Airlines 4 2026-04-18
SWA4201 - 4 2026-04-13
SWA3828 Southwest Airlines 4 2026-05-12
SWA365 Southwest Airlines 4 2026-06-09
SWA3399 Southwest Airlines 4 2026-04-21
SWA3366 Southwest Airlines 4 2026-04-22
SWA3208 Southwest Airlines 4 2026-05-23
SWA3009 Southwest Airlines 4 2026-04-17
SWA2916 Southwest Airlines 4 2026-04-18
SWA2429 Southwest Airlines 4 2026-04-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA3414 MDW → LAS Jul 26, 21:55 UTCJul 26, 23:00 UTC1h 5m
2026-07-26 SWA2348 LAX → OAK Jul 26, 19:35 UTCJul 26, 20:40 UTC1h 5m
2026-07-26 SWA1094 PHX → BOI Jul 26, 17:20 UTCJul 26, 18:20 UTC1h 0m
2026-07-26 SWA1094 PHX → BOI Jul 26, 17:16 UTCJul 26, 18:14 UTC58m
2026-07-26 SWA186 LGA → HOU Jul 26, 15:10 UTCJul 26, 16:05 UTC55m
2026-07-26 SWA186 LGA → HOU Jul 26, 12:35 UTCJul 26, 14:00 UTC1h 25m
2026-07-26 SWA2179 LGA → DAL Jul 26, 06:15 UTCJul 26, 09:50 UTC3h 36m
2026-07-26 SWA2179 LGA → DAL Jul 26, 06:13 UTCJul 26, 09:49 UTC3h 36m
2026-07-26 SWA1946 OGG → OAK Jul 26, 02:00 UTCJul 26, 04:10 UTC2h 10m
2026-07-26 SWA1946 OGG → OAK Jul 26, 01:57 UTCJul 26, 04:04 UTC2h 7m
2026-07-25 SWA4747 RDU → MSY Jul 25, 22:55 UTCJul 26, 00:23 UTC1h 29m
2026-07-25 SWA4747 RDU → MSY Jul 25, 23:00 UTCJul 26, 00:25 UTC1h 25m
2026-07-25 SWA2326 PDX → SJC Jul 25, 20:40 UTCJul 25, 21:35 UTC55m
2026-07-25 SWA3831 BUR → SFO Jul 25, 18:35 UTCJul 25, 19:45 UTC1h 10m
2026-07-25 SWA4322 MCO → MSY Jul 25, 16:40 UTCJul 25, 17:35 UTC55m
2026-07-25 SWA4322 MCO → MSY Jul 25, 16:37 UTCJul 25, 17:33 UTC56m
2026-07-25 SWA4322 MCO → MSY Jul 25, 10:40 UTCJul 25, 15:30 UTC4h 50m
2026-07-25 SWA736 BOS → BWI Jul 25, 02:20 UTCJul 25, 03:25 UTC1h 5m
2026-07-25 SWA4361 FLL → ORD Jul 25, 00:20 UTCJul 25, 01:25 UTC1h 5m
2026-07-24 SWA1665 BUR → OAK Jul 24, 22:25 UTCJul 24, 23:05 UTC40m
2026-07-24 SWA1665 BUR → OAK Jul 24, 18:25 UTCJul 24, 21:25 UTC3h 0m
2026-07-24 SWA4574 LAS → FAT Jul 24, 15:05 UTCJul 24, 17:25 UTC2h 20m
2026-07-24 SWA4574 LAS → FAT Jul 24, 15:03 UTCJul 24, 16:55 UTC1h 52m
2026-07-24 SWA4907 SAT → MSY Jul 24, 03:10 UTCJul 24, 04:10 UTC1h 0m
2026-07-24 SWA342 SNA → SJC Jul 24, 01:35 UTCJul 24, 02:25 UTC50m
2026-07-24 SWA342 SNA → SJC Jul 24, 00:05 UTCJul 24, 00:45 UTC40m
2026-07-23 SWA342 SNA → SJC Jul 23, 21:10 UTCJul 23, 23:00 UTC1h 50m
2026-07-23 SWA342 SNA → SJC Jul 23, 19:35 UTCJul 23, 20:15 UTC40m
2026-07-23 SWA342 SNA → SJC Jul 23, 16:20 UTCJul 23, 18:35 UTC2h 15m
2026-07-23 SWA2160 BNA → MSP Jul 23, 13:40 UTCJul 23, 15:25 UTC1h 45m
2026-07-23 SWA179 MSY → DEN Jul 23, 11:20 UTCJul 23, 12:00 UTC40m
2026-07-23 SWA274 ELP → DAL Jul 23, 02:25 UTCJul 23, 04:05 UTC1h 40m
2026-07-22 SWA2873 PHX → PSP Jul 22, 23:20 UTCJul 23, 00:40 UTC1h 20m
2026-07-22 SWA464 STL → PNS Jul 22, 21:00 UTCJul 22, 22:25 UTC1h 25m
2026-07-22 SWA493 PHX → LGB Jul 22, 18:05 UTCJul 22, 19:55 UTC1h 50m
2026-07-22 SWA3932 DAL → MSY Jul 22, 16:05 UTCJul 22, 17:05 UTC1h 0m
2026-07-22 SWA2913 DAL → ATL Jul 22, 13:35 UTCJul 22, 14:25 UTC50m
2026-07-22 SWA2913 DAL → ATL Jul 22, 13:31 UTCJul 22, 14:10 UTC39m
2026-07-22 SWA2839 KOA → OAK Jul 22, 04:00 UTCJul 22, 05:00 UTC1h 0m
2026-07-21 SWA2839 KOA → OAK Jul 21, 22:10 UTCJul 22, 00:30 UTC2h 20m
2026-07-21 SWA599 - Jul 21, 20:10 UTCJul 21, 20:55 UTC45m
2026-07-21 SWA600 - Jul 21, 17:15 UTCJul 21, 17:50 UTC35m
2026-07-21 SWA600 MCO → NAS Jul 21, 17:13 UTCJul 21, 18:07 UTC54m
2026-07-21 SWA1349 DAL → MCO Jul 21, 12:40 UTCJul 21, 14:55 UTC2h 15m
2026-07-21 SWA1349 - Jul 21, 10:50 UTCJul 21, 11:35 UTC45m
2026-07-21 SWA4451 - Jul 21, 03:45 UTCJul 21, 04:15 UTC30m
2026-07-21 SWA4451 HOU → SAT Jul 21, 03:42 UTCJul 21, 04:15 UTC33m
2026-07-21 SWA540 LAS → SBA Jul 21, 00:30 UTCJul 21, 02:45 UTC2h 15m
2026-07-20 SWA4301 HOU → OAK Jul 20, 22:15 UTCJul 20, 23:05 UTC50m
2026-07-20 SWA4301 HOU → OAK Jul 20, 20:30 UTCJul 20, 21:10 UTC40m

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 N7861J page for operator, model, and routing details .

Mode-S AAA954 frequently asked

What is Mode-S code AAA954?
AAA954 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N7861J.
Where is Mode-S AAA954 registered?
Mode-S code AAA954 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 AAA954 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 23:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AAA954, octal 52524524, decimal 11,184,468.
What flights does AAA954 operate?
Mode-S AAA954 has broadcast 20 distinct callsigns, including SWA2099, SWA874, SWA714, SWA4355, SWA345.