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sensors Mode-S transponder

AAA5FF

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N7854B · BOEING 737-700 · operated by SOUTHWEST AIRLINES CO

Hex
AAA5FF
Octal
52522777
Decimal
11,183,615
Country
US
Tail
N7854B
Type
B737
Broadcasting now · callsign SWA1181 · 23,725 ft
Flights observed
692
Distinct callsigns
20
Country
US
Last broadcast
41m ago

Current position

AAA5FF is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AAA5FF 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
SWA4461 Southwest Airlines 6 2026-06-30
SWA2451 - 5 2026-06-18
SWA2450 - 5 2026-04-13
SWA937 - 4 2026-07-08
SWA684 - 4 2026-07-01
SWA617 Southwest Airlines 4 2026-06-11
SWA600 Southwest Airlines 4 2026-05-08
SWA599 Southwest Airlines 4 2026-05-08
SWA3593 Southwest Airlines 4 2026-05-20
SWA3588 Southwest Airlines 4 2026-05-20
SWA3495 Southwest Airlines 4 2026-06-29
SWA3472 Southwest Airlines 4 2026-04-30
SWA3287 - 4 2026-04-14
SWA3151 - 4 2026-07-06
SWA2990 Southwest Airlines 4 2026-04-28
SWA2794 - 4 2026-04-15
SWA2577 Southwest Airlines 4 2026-05-17
SWA1564 Southwest Airlines 4 2026-06-08
SWA1563 - 4 2026-07-10
SWA1284 Southwest Airlines 4 2026-04-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SWA1181 PHX → SAN Jul 14, 18:30 UTCJul 14, 19:20 UTC50m
2026-07-14 SWA4040 TPA → PHX Jul 14, 13:35 UTCJul 14, 17:30 UTC3h 55m
2026-07-14 SWA2513 MSY → TPA Jul 14, 11:10 UTCJul 14, 12:20 UTC1h 10m
2026-07-14 SWA4656 MCO → MSY Jul 14, 03:45 UTCJul 14, 05:05 UTC1h 20m
2026-07-13 SWA2091 - Jul 13, 23:05 UTCJul 14, 01:20 UTC2h 15m
2026-07-13 SWA2091 - Jul 13, 21:05 UTCJul 13, 22:05 UTC1h 0m
2026-07-13 SWA871 - Jul 13, 17:35 UTCJul 13, 18:50 UTC1h 15m
2026-07-13 SWA871 SJD → HOU Jul 13, 16:41 UTCJul 13, 18:49 UTC2h 8m
2026-07-13 SWA870 - Jul 13, 13:10 UTCJul 13, 17:45 UTC4h 35m
2026-07-13 SWA870 HOU → SJD Jul 13, 13:09 UTCJul 13, 15:21 UTC2h 12m
2026-07-13 SWA3919 - Jul 13, 10:05 UTCJul 13, 11:40 UTC1h 35m
2026-07-13 SWA2371 LAS → STL Jul 13, 04:05 UTCJul 13, 07:05 UTC3h 0m
2026-07-13 SWA2371 LAS → STL Jul 13, 04:05 UTCJul 13, 07:05 UTC3h 0m
2026-07-13 SWA794 BUR → LAS Jul 13, 02:01 UTCJul 13, 02:45 UTC45m
2026-07-13 SWA794 BUR → LAS Jul 13, 01:59 UTCJul 13, 02:41 UTC42m
2026-07-13 SWA4977 OAK → BUR Jul 13, 00:15 UTCJul 13, 01:10 UTC55m
2026-07-13 SWA4977 OAK → BUR Jul 13, 00:15 UTCJul 13, 01:08 UTC53m
2026-07-12 SWA3980 LAS → OAK Jul 12, 22:20 UTCJul 12, 23:20 UTC1h 0m
2026-07-12 SWA1311 - Jul 12, 19:40 UTCJul 12, 20:55 UTC1h 15m
2026-07-12 SWA3517 - Jul 12, 17:45 UTCJul 12, 18:40 UTC55m
2026-07-12 SWA3074 OAK → SAN Jul 12, 15:15 UTCJul 12, 16:30 UTC1h 15m
2026-07-12 SWA2826 - Jul 12, 12:45 UTCJul 12, 13:35 UTC50m
2026-07-12 SWA1777 LAS → ONT Jul 12, 05:05 UTCJul 12, 05:40 UTC35m
2026-07-12 SWA1227 COS → LAS Jul 12, 02:25 UTCJul 12, 03:55 UTC1h 30m
2026-07-11 SWA934 - Jul 11, 23:10 UTCJul 12, 01:05 UTC1h 55m
2026-07-11 SWA1006 DAL → MDW Jul 11, 19:55 UTCJul 11, 21:40 UTC1h 45m
2026-07-11 SWA4489 LAS → DAL Jul 11, 16:10 UTCJul 11, 18:25 UTC2h 15m
2026-07-11 SWA4489 LAS → DAL Jul 11, 16:08 UTCJul 11, 18:28 UTC2h 21m
2026-07-11 SWA3359 OMA → LAS Jul 11, 12:36 UTCJul 11, 14:59 UTC2h 23m
2026-07-11 SWA2845 - Jul 11, 03:10 UTCJul 11, 03:45 UTC35m
2026-07-11 SWA2845 MDW → OMA Jul 11, 03:08 UTCJul 11, 04:06 UTC58m
2026-07-11 SWA3329 SDF → MDW Jul 11, 00:10 UTCJul 11, 01:05 UTC55m
2026-07-11 SWA3329 SDF → MDW Jul 11, 00:10 UTCJul 11, 01:03 UTC53m
2026-07-10 SWA3329 - Jul 10, 20:15 UTCJul 10, 23:20 UTC3h 5m
2026-07-10 SWA4651 - Jul 10, 16:20 UTCJul 10, 18:30 UTC2h 10m
2026-07-10 SWA4289 - Jul 10, 13:55 UTCJul 10, 15:15 UTC1h 20m
2026-07-10 SWA4477 - Jul 10, 11:00 UTCJul 10, 12:10 UTC1h 10m
2026-07-10 SWA873 LAS → CMH Jul 10, 05:00 UTCJul 10, 08:45 UTC3h 45m
2026-07-10 SWA1563 - Jul 10, 02:30 UTCJul 10, 04:05 UTC1h 35m
2026-07-09 SWA1563 - Jul 9, 23:55 UTCJul 10, 01:10 UTC1h 15m
2026-07-09 SWA1563 - Jul 9, 20:20 UTCJul 9, 22:25 UTC2h 5m
2026-07-09 SWA1563 - Jul 9, 17:40 UTCJul 9, 19:10 UTC1h 30m
2026-07-09 SWA1067 - Jul 9, 14:15 UTCJul 9, 16:45 UTC2h 30m
2026-07-09 SWA1067 BWI → RDU Jul 9, 12:15 UTCJul 9, 13:05 UTC50m
2026-07-09 SWA2141 ISP → BWI Jul 9, 10:08 UTCJul 9, 11:02 UTC55m
2026-07-09 SWA4321 - Jul 9, 01:30 UTCJul 9, 02:10 UTC40m
2026-07-08 SWA3191 - Jul 8, 22:20 UTCJul 9, 00:15 UTC1h 55m
2026-07-08 SWA937 - Jul 8, 18:50 UTCJul 8, 21:20 UTC2h 30m
2026-07-08 SWA937 - Jul 8, 16:50 UTCJul 8, 17:40 UTC50m
2026-07-08 SWA937 - Jul 8, 14:55 UTCJul 8, 15:45 UTC50m

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 N7854B page for operator, model, and routing details .

Mode-S AAA5FF frequently asked

What is Mode-S code AAA5FF?
AAA5FF is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N7854B.
Where is Mode-S AAA5FF registered?
Mode-S code AAA5FF 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 AAA5FF broadcasting right now?
Yes. Mode-S AAA5FF is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AAA5FF, octal 52522777, decimal 11,183,615.
What flights does AAA5FF operate?
Mode-S AAA5FF has broadcast 20 distinct callsigns, including SWA4461, SWA2451, SWA2450, SWA937, SWA684.