Apparatus

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sensors Mode-S transponder

A29748

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N266WN · BOEING 737-700 · operated by SOUTHWEST AIRLINES CO

Hex
A29748
Octal
50513510
Decimal
10,655,560
Country
US
Tail
N266WN
Type
B737
No current signal · last broadcast Jul 26, 22:00 UTC
Flights observed
785
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:00 UTC

Last known position

Most recent position reported by Mode-S A29748.

Country allocation

The ICAO 24-bit address A29748 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
SWA882 Southwest Airlines 8 2026-07-22
SWA342 - 8 2026-07-15
SWA1149 Southwest Airlines 8 2026-06-14
SWA1255 - 7 2026-07-17
SWA4903 Southwest Airlines 6 2026-06-19
SWA270 Southwest Airlines 6 2026-06-07
SWA2477 - 6 2026-06-20
SWA2227 Southwest Airlines 6 2026-05-17
SWA1927 - 6 2026-04-13
SWA930 - 5 2026-06-14
SWA686 - 5 2026-07-11
SWA3863 Southwest Airlines 5 2026-06-19
SWA3743 - 5 2026-06-30
SWA268 - 5 2026-07-04
SWA2382 Southwest Airlines 5 2026-07-19
SWA1037 - 5 2026-07-10
SWA879 Southwest Airlines 4 2026-05-08
SWA683 - 4 2026-06-18
SWA554 - 4 2026-06-24
SWA4638 - 4 2026-04-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA2456 SAN → SJC Jul 26, 21:15 UTCJul 26, 22:00 UTC45m
2026-07-26 SWA2803 PVD → MCO Jul 26, 18:15 UTCJul 26, 19:50 UTC1h 35m
2026-07-26 SWA2803 PVD → MCO Jul 26, 18:15 UTCJul 26, 19:55 UTC1h 40m
2026-07-26 SWA2803 PVD → MCO Jul 26, 16:15 UTCJul 26, 17:20 UTC1h 5m
2026-07-26 SWA3363 DCA → PVD Jul 26, 13:05 UTCJul 26, 15:25 UTC2h 20m
2026-07-26 SWA2141 PHL → MDW Jul 26, 10:10 UTCJul 26, 11:00 UTC50m
2026-07-26 SWA2141 PHL → MDW Jul 26, 10:06 UTCJul 26, 10:55 UTC49m
2026-07-26 SWA4840 DAL → HRL Jul 26, 00:35 UTCJul 26, 02:45 UTC2h 10m
2026-07-26 SWA4840 DAL → HRL Jul 26, 00:34 UTCJul 26, 02:45 UTC2h 11m
2026-07-25 SWA2820 MCO → MHT Jul 25, 21:15 UTCJul 25, 23:15 UTC2h 0m
2026-07-25 SWA2820 MCO → MHT Jul 25, 19:15 UTCJul 25, 20:10 UTC55m
2026-07-25 SWA2820 MCO → MHT Jul 25, 16:40 UTCJul 25, 18:15 UTC1h 35m
2026-07-25 SWA499 SAN → OAK Jul 25, 13:10 UTCJul 25, 15:25 UTC2h 15m
2026-07-25 SWA499 SAN → OAK Jul 25, 13:05 UTCJul 25, 15:19 UTC2h 14m
2026-07-25 SWA1425 LGA → HOU Jul 25, 10:20 UTCJul 25, 11:45 UTC1h 25m
2026-07-25 SWA4888 BWI → BOS Jul 25, 01:35 UTCJul 25, 04:15 UTC2h 40m
2026-07-24 SWA4230 OAK → HOU Jul 24, 22:40 UTCJul 25, 00:45 UTC2h 5m
2026-07-24 SWA4230 OAK → HOU Jul 24, 22:37 UTCJul 25, 00:48 UTC2h 11m
2026-07-24 SWA4562 MDW → RSW Jul 24, 19:15 UTCJul 24, 21:20 UTC2h 5m
2026-07-24 SWA4562 MDW → RSW Jul 24, 16:40 UTCJul 24, 18:05 UTC1h 25m
2026-07-24 SWA3461 SAN → HOU Jul 24, 13:40 UTCJul 24, 15:20 UTC1h 40m
2026-07-24 SWA438 ATL → LAS Jul 24, 10:35 UTCJul 24, 12:35 UTC2h 0m
2026-07-24 SWA4043 DEN → LAX Jul 24, 00:15 UTCJul 24, 01:00 UTC45m
2026-07-23 SWA1228 SAN → LAS Jul 23, 21:23 UTCJul 23, 23:15 UTC1h 53m
2026-07-23 SWA1228 SAN → LAS Jul 23, 21:25 UTCJul 23, 23:20 UTC1h 55m
2026-07-23 SWA1228 SAN → LAS Jul 23, 19:55 UTCJul 23, 20:15 UTC20m
2026-07-23 SWA1228 SAN → LAS Jul 23, 15:05 UTCJul 23, 18:50 UTC3h 45m
2026-07-23 SWA2735 ATL → PHL Jul 23, 12:00 UTCJul 23, 13:45 UTC1h 45m
2026-07-23 SWA2651 BUR → OAK Jul 23, 02:20 UTCJul 23, 04:00 UTC1h 40m
2026-07-23 SWA2651 BUR → OAK Jul 23, 02:15 UTCJul 23, 03:57 UTC1h 42m
2026-07-22 SWA882 DAL → DCA Jul 22, 23:55 UTCJul 23, 01:20 UTC1h 25m
2026-07-22 SWA882 DAL → DCA Jul 22, 23:50 UTCJul 23, 01:15 UTC1h 25m
2026-07-22 SWA882 DAL → DCA Jul 22, 22:00 UTCJul 22, 22:55 UTC55m
2026-07-22 SWA882 DAL → DCA Jul 22, 18:35 UTCJul 22, 21:05 UTC2h 30m
2026-07-22 SWA1396 PVD → BWI Jul 22, 13:45 UTCJul 22, 17:20 UTC3h 35m
2026-07-22 SWA1396 PVD → BWI Jul 22, 13:40 UTCJul 22, 17:20 UTC3h 41m
2026-07-22 SWA52 - Jul 22, 00:30 UTCJul 22, 01:15 UTC45m
2026-07-21 SWA52 - Jul 21, 22:55 UTCJul 21, 23:35 UTC40m
2026-07-21 SWA726 BWI → BOS Jul 21, 21:10 UTCJul 21, 21:45 UTC35m
2026-07-21 SWA1151 - Jul 21, 17:30 UTCJul 21, 19:40 UTC2h 10m
2026-07-21 SWA1151 CMH → HOU Jul 21, 17:25 UTCJul 21, 19:40 UTC2h 16m
2026-07-21 SWA3902 LAS → OAK Jul 21, 15:25 UTCJul 21, 16:20 UTC55m
2026-07-21 SWA3902 LAS → OAK Jul 21, 15:22 UTCJul 21, 16:19 UTC57m
2026-07-21 SWA2087 TPA → ALB Jul 21, 12:30 UTCJul 21, 14:10 UTC1h 40m
2026-07-21 SWA4797 MDW → FLL Jul 21, 02:25 UTCJul 21, 04:10 UTC1h 45m
2026-07-20 SWA3117 LAS → MCI Jul 20, 23:15 UTCJul 21, 00:15 UTC59m
2026-07-20 SWA371 HOU → MCO Jul 20, 21:35 UTCJul 20, 22:30 UTC55m
2026-07-20 SWA4610 ELP → SAT Jul 20, 18:35 UTCJul 20, 20:30 UTC1h 55m
2026-07-20 SWA4574 LAS → FAT Jul 20, 15:15 UTCJul 20, 17:15 UTC2h 0m
2026-07-20 SWA3057 - Jul 20, 04:20 UTCJul 20, 05:25 UTC1h 5m

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 N266WN page for operator, model, and routing details .

Mode-S A29748 frequently asked

What is Mode-S code A29748?
A29748 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N266WN.
Where is Mode-S A29748 registered?
Mode-S code A29748 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 A29748 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 A29748, octal 50513510, decimal 10,655,560.
What flights does A29748 operate?
Mode-S A29748 has broadcast 20 distinct callsigns, including SWA882, SWA342, SWA1149, SWA1255, SWA4903.