Apparatus

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sensors Mode-S transponder

AAA5B8

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N7852A · BOEING 737-700 · operated by SOUTHWEST AIRLINES CO

Hex
AAA5B8
Octal
52522670
Decimal
11,183,544
Country
US
Tail
N7852A
Type
B737
No current signal · last broadcast Jul 26, 22:00 UTC
Flights observed
779
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:00 UTC

Last known position

Most recent position reported by Mode-S AAA5B8.

Country allocation

The ICAO 24-bit address AAA5B8 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
SWA534 Southwest Airlines 8 2026-05-21
SWA579 - 7 2026-07-03
SWA4170 Southwest Airlines 6 2026-05-21
SWA492 - 5 2026-07-14
SWA4392 - 5 2026-07-08
SWA3199 Southwest Airlines 5 2026-05-28
SWA2223 Southwest Airlines 5 2026-05-15
SWA2109 - 5 2026-06-23
SWA169 Southwest Airlines 5 2026-05-29
SWA1577 - 5 2026-07-17
SWA4370 - 4 2026-07-12
SWA4111 Southwest Airlines 4 2026-05-21
SWA4024 - 4 2026-07-08
SWA3899 - 4 2026-04-13
SWA3522 Southwest Airlines 4 2026-05-11
SWA3329 - 4 2026-06-27
SWA3127 Southwest Airlines 4 2026-06-27
SWA3073 Southwest Airlines 4 2026-06-02
SWA291 - 4 2026-06-21
SWA2737 Southwest Airlines 4 2026-04-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA2264 BWI → CLT Jul 26, 20:25 UTCJul 26, 22:00 UTC1h 35m
2026-07-26 SWA2264 BWI → CLT Jul 26, 17:40 UTCJul 26, 19:05 UTC1h 25m
2026-07-26 SWA2264 BWI → CLT Jul 26, 15:55 UTCJul 26, 16:35 UTC40m
2026-07-26 SWA1191 SAN → OAK Jul 26, 14:05 UTCJul 26, 14:45 UTC40m
2026-07-26 SWA3857 BWI → LAS Jul 26, 03:10 UTCJul 26, 04:15 UTC1h 5m
2026-07-26 SWA331 MCI → AUS Jul 26, 00:45 UTCJul 26, 01:50 UTC1h 5m
2026-07-25 SWA3519 OAK → BUR Jul 25, 22:40 UTCJul 25, 23:45 UTC1h 5m
2026-07-25 SWA4135 SAN → SFO Jul 25, 20:55 UTCJul 25, 21:40 UTC45m
2026-07-25 SWA4010 SLC → LAS Jul 25, 19:05 UTCJul 25, 20:00 UTC55m
2026-07-25 SWA4010 SLC → LAS Jul 25, 19:01 UTCJul 25, 19:55 UTC55m
2026-07-25 SWA347 SJC → SNA Jul 25, 17:15 UTCJul 25, 18:05 UTC50m
2026-07-25 SWA1070 BNA → DEN Jul 25, 15:25 UTCJul 25, 16:15 UTC50m
2026-07-25 SWA1070 BNA → DEN Jul 25, 12:00 UTCJul 25, 14:20 UTC2h 20m
2026-07-25 SWA4210 MSY → DEN Jul 25, 01:55 UTCJul 25, 05:00 UTC3h 5m
2026-07-24 SWA399 SAN → OAK Jul 24, 21:50 UTCJul 25, 00:50 UTC3h 0m
2026-07-24 SWA399 SAN → OAK Jul 24, 18:00 UTCJul 24, 20:05 UTC2h 5m
2026-07-24 SWA568 BWI → BOS Jul 24, 15:35 UTCJul 24, 17:00 UTC1h 25m
2026-07-24 SWA568 BWI → BOS Jul 24, 15:35 UTCJul 24, 16:56 UTC1h 22m
2026-07-24 SWA1528 HOU → VPS Jul 24, 12:34 UTCJul 24, 14:07 UTC1h 33m
2026-07-24 SWA1528 HOU → VPS Jul 24, 12:35 UTCJul 24, 14:15 UTC1h 40m
2026-07-24 SWA4085 LAS → OAK Jul 24, 03:50 UTCJul 24, 05:00 UTC1h 10m
2026-07-24 SWA2693 LGB → SJC Jul 24, 00:30 UTCJul 24, 01:50 UTC1h 20m
2026-07-23 SWA2693 LGB → SJC Jul 23, 21:10 UTCJul 23, 23:30 UTC2h 20m
2026-07-23 SWA2034 SJC → LAS Jul 23, 17:40 UTCJul 23, 19:40 UTC2h 0m
2026-07-23 SWA2034 SJC → LAS Jul 23, 17:35 UTCJul 23, 19:35 UTC2h 1m
2026-07-23 SWA2034 SJC → LAS Jul 23, 13:40 UTCJul 23, 16:30 UTC2h 50m
2026-07-23 SWA1978 MSP → STL Jul 23, 01:00 UTCJul 23, 04:40 UTC3h 40m
2026-07-22 SWA4193 TPA → STL Jul 22, 22:00 UTCJul 22, 23:45 UTC1h 45m
2026-07-22 SWA484 BWI → BDL Jul 22, 18:30 UTCJul 22, 21:00 UTC2h 30m
2026-07-22 SWA1821 - Jul 22, 13:40 UTCJul 22, 17:25 UTC3h 45m
2026-07-22 SWA1821 BNA → LAX Jul 22, 13:37 UTCJul 22, 17:22 UTC3h 45m
2026-07-22 SWA1935 SMF → ONT Jul 22, 11:10 UTCJul 22, 12:15 UTC1h 5m
2026-07-22 SWA1935 SMF → ONT Jul 22, 10:52 UTCJul 22, 12:04 UTC1h 12m
2026-07-22 SWA4135 - Jul 22, 01:25 UTCJul 22, 02:50 UTC1h 25m
2026-07-21 SWA2285 BUR → OAK Jul 21, 23:00 UTCJul 21, 23:45 UTC45m
2026-07-21 SWA598 SFO → LAX Jul 21, 19:30 UTCJul 21, 20:30 UTC1h 0m
2026-07-21 SWA598 SFO → LAX Jul 21, 16:35 UTCJul 21, 17:35 UTC1h 0m
2026-07-21 SWA1279 BWI → BUF Jul 21, 14:00 UTCJul 21, 15:30 UTC1h 30m
2026-07-21 SWA1279 BWI → BUF Jul 21, 13:58 UTCJul 21, 15:23 UTC1h 25m
2026-07-21 SWA1406 DAL → TPA Jul 21, 10:45 UTCJul 21, 12:50 UTC2h 5m
2026-07-21 SWA1123 STL → BOS Jul 21, 00:35 UTCJul 21, 02:25 UTC1h 50m
2026-07-20 SWA962 TPA → BDL Jul 20, 20:55 UTCJul 20, 23:25 UTC2h 30m
2026-07-20 SWA962 TPA → BDL Jul 20, 20:55 UTCJul 20, 23:19 UTC2h 24m
2026-07-20 SWA4206 PHX → LGB Jul 20, 17:20 UTCJul 20, 18:45 UTC1h 25m
2026-07-20 SWA4206 PHX → LGB Jul 20, 17:15 UTCJul 20, 18:39 UTC1h 25m
2026-07-20 SWA4206 PHX → LGB Jul 20, 15:50 UTCJul 20, 16:20 UTC30m
2026-07-20 SWA4062 - Jul 20, 13:05 UTCJul 20, 14:20 UTC1h 15m
2026-07-20 SWA4062 VPS → BNA Jul 20, 13:04 UTCJul 20, 14:16 UTC1h 12m
2026-07-20 SWA2982 - Jul 20, 02:15 UTCJul 20, 03:05 UTC50m
2026-07-20 SWA2982 BNA → VPS Jul 20, 02:15 UTCJul 20, 03:13 UTC58m

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 N7852A page for operator, model, and routing details .

Mode-S AAA5B8 frequently asked

What is Mode-S code AAA5B8?
AAA5B8 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N7852A.
Where is Mode-S AAA5B8 registered?
Mode-S code AAA5B8 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 AAA5B8 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AAA5B8, octal 52522670, decimal 11,183,544.
What flights does AAA5B8 operate?
Mode-S AAA5B8 has broadcast 20 distinct callsigns, including SWA534, SWA579, SWA4170, SWA492, SWA4392.