Apparatus

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sensors Mode-S transponder

A29AFF

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N267WN · BOEING 737-700 · operated by SOUTHWEST AIRLINES CO

Hex
A29AFF
Octal
50515377
Decimal
10,656,511
Country
US
Tail
N267WN
Type
B737
Broadcasting now · callsign SWA1635 · 17,125 ft
Flights observed
796
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:45 UTC

Current position

A29AFF is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A29AFF 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
SWA4636 Southwest Airlines 5 2026-06-04
SWA300 Southwest Airlines 5 2026-05-19
SWA1080 Southwest Airlines 5 2026-04-16
SWA799 Southwest Airlines 4 2026-06-03
SWA4415 - 4 2026-04-13
SWA431 Southwest Airlines 4 2026-04-16
SWA4157 Southwest Airlines 4 2026-05-11
SWA380 - 4 2026-06-15
SWA358 Southwest Airlines 4 2026-06-07
SWA3438 Southwest Airlines 4 2026-05-15
SWA3333 - 4 2026-07-02
SWA3318 Southwest Airlines 4 2026-05-19
SWA3222 Southwest Airlines 4 2026-07-21
SWA2587 Southwest Airlines 4 2026-05-20
SWA2570 - 4 2026-07-09
SWA250 Southwest Airlines 4 2026-05-22
SWA2407 - 4 2026-06-29
SWA2285 Southwest Airlines 4 2026-06-10
SWA1911 Southwest Airlines 4 2026-04-17
SWA1795 Southwest Airlines 4 2026-06-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA3130 PHX → DEN Jul 26, 21:00 UTCJul 26, 21:45 UTC45m
2026-07-26 SWA3130 PHX → DEN Jul 26, 17:35 UTCJul 26, 19:40 UTC2h 5m
2026-07-26 SWA4442 LIH → LAX Jul 26, 15:50 UTCJul 26, 16:35 UTC45m
2026-07-26 SWA4671 LAS → OAK Jul 26, 13:55 UTCJul 26, 14:35 UTC40m
2026-07-26 SWA4671 LAS → OAK Jul 26, 10:45 UTCJul 26, 13:00 UTC2h 15m
2026-07-25 SWA3987 BWI → CLT Jul 25, 23:20 UTCJul 26, 01:05 UTC1h 45m
2026-07-25 SWA138 OAK → LAS Jul 25, 19:25 UTCJul 25, 20:30 UTC1h 5m
2026-07-25 SWA1502 SJC → LAS Jul 25, 14:50 UTCJul 25, 16:50 UTC2h 0m
2026-07-25 SWA1502 SJC → LAS Jul 25, 12:55 UTCJul 25, 13:40 UTC45m
2026-07-25 SWA2335 HOU → LGA Jul 25, 06:35 UTCJul 25, 09:00 UTC2h 25m
2026-07-25 SWA372 SEA → OAK Jul 25, 05:00 UTCJul 25, 05:40 UTC40m
2026-07-25 SWA372 SEA → OAK Jul 25, 01:25 UTCJul 25, 03:45 UTC2h 20m
2026-07-24 SWA4749 BWI → HOU Jul 24, 22:45 UTCJul 25, 00:05 UTC1h 20m
2026-07-24 SWA743 SJC → AUS Jul 24, 18:30 UTCJul 24, 21:30 UTC3h 0m
2026-07-24 SWA4560 PHX → SJC Jul 24, 15:30 UTCJul 24, 17:30 UTC2h 0m
2026-07-24 SWA4560 PHX → SJC Jul 24, 15:30 UTCJul 24, 17:25 UTC1h 55m
2026-07-24 SWA2531 PHX → OAK Jul 24, 12:55 UTCJul 24, 14:05 UTC1h 10m
2026-07-24 SWA2531 PHX → OAK Jul 24, 12:51 UTCJul 24, 14:00 UTC1h 9m
2026-07-24 SWA2453 LAS → ELP Jul 24, 03:20 UTCJul 24, 04:00 UTC40m
2026-07-24 SWA747 HNL → ITO Jul 24, 00:50 UTCJul 24, 02:05 UTC1h 15m
2026-07-23 SWA747 HNL → ITO Jul 23, 20:25 UTCJul 24, 00:00 UTC3h 35m
2026-07-23 SWA1097 BUR → SFO Jul 23, 18:00 UTCJul 23, 19:00 UTC1h 0m
2026-07-23 SWA3555 SAV → BNA Jul 23, 15:50 UTCJul 23, 16:45 UTC55m
2026-07-23 SWA3555 SAV → BNA Jul 23, 13:35 UTCJul 23, 14:45 UTC1h 10m
2026-07-23 SWA636 STL → MDW Jul 23, 03:45 UTCJul 23, 05:15 UTC1h 30m
2026-07-22 SWA636 STL → MDW Jul 22, 22:30 UTCJul 23, 02:35 UTC4h 5m
2026-07-22 SWA3610 BWI → PVD Jul 22, 20:30 UTCJul 22, 21:15 UTC45m
2026-07-22 SWA3743 MCO → CMH Jul 22, 18:40 UTCJul 22, 19:25 UTC45m
2026-07-22 SWA3743 MCO → CMH Jul 22, 16:25 UTCJul 22, 17:20 UTC55m
2026-07-22 SWA353 SLC → DEN Jul 22, 14:20 UTCJul 22, 15:30 UTC1h 10m
2026-07-22 SWA142 MCO → STL Jul 22, 02:15 UTCJul 22, 04:15 UTC2h 0m
2026-07-21 SWA3222 - Jul 21, 17:35 UTCJul 21, 19:35 UTC2h 0m
2026-07-21 SWA3222 - Jul 21, 14:25 UTCJul 21, 16:10 UTC1h 45m
2026-07-21 SWA1102 EUG → OAK Jul 21, 11:30 UTCJul 21, 13:05 UTC1h 35m
2026-07-21 SWA1102 EUG → OAK Jul 21, 11:25 UTCJul 21, 13:04 UTC1h 39m
2026-07-21 SWA2875 BWI → BOS Jul 21, 02:20 UTCJul 21, 03:45 UTC1h 25m
2026-07-21 SWA2875 BWI → BOS Jul 21, 02:17 UTCJul 21, 03:58 UTC1h 41m
2026-07-21 SWA1005 BUR → SMF Jul 21, 02:22 UTCJul 21, 04:04 UTC1h 42m
2026-07-20 SWA1005 BUR → SMF Jul 20, 23:55 UTCJul 21, 01:25 UTC1h 30m
2026-07-20 SWA470 LGB → OAK Jul 20, 20:55 UTCJul 20, 22:45 UTC1h 50m
2026-07-20 SWA470 LGB → OAK Jul 20, 18:40 UTCJul 20, 19:45 UTC1h 5m
2026-07-20 SWA1110 LAS → SNA Jul 20, 16:40 UTCJul 20, 17:25 UTC45m
2026-07-20 SWA1110 LAS → SNA Jul 20, 13:45 UTCJul 20, 15:35 UTC1h 50m
2026-07-20 SWA1110 LAS → SNA Jul 20, 11:30 UTCJul 20, 12:45 UTC1h 15m
2026-07-20 SWA3321 STL → MDW Jul 20, 03:35 UTCJul 20, 04:35 UTC1h 0m
2026-07-19 SWA1746 SJC → PHX Jul 19, 23:40 UTCJul 20, 01:50 UTC2h 10m
2026-07-19 SWA1746 SJC → PHX Jul 19, 23:37 UTCJul 20, 01:46 UTC2h 9m
2026-07-19 SWA2915 LAX → MCI Jul 19, 19:35 UTCJul 19, 22:35 UTC3h 0m
2026-07-19 SWA2908 RDU → TPA Jul 19, 16:45 UTCJul 19, 18:05 UTC1h 20m
2026-07-19 SWA2857 OAK → SNA Jul 19, 14:20 UTCJul 19, 15:50 UTC1h 30m

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 N267WN page for operator, model, and routing details .

Mode-S A29AFF frequently asked

What is Mode-S code A29AFF?
A29AFF is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N267WN.
Where is Mode-S A29AFF registered?
Mode-S code A29AFF 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 A29AFF broadcasting right now?
Yes. Mode-S A29AFF is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A29AFF, octal 50515377, decimal 10,656,511.
What flights does A29AFF operate?
Mode-S A29AFF has broadcast 20 distinct callsigns, including SWA4636, SWA300, SWA1080, SWA799, SWA4415.