Apparatus

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sensors Mode-S transponder

AC1301

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8772M · BOEING 737 MAX 8 · operated by SOUTHWEST AIRLINES CO

Hex
AC1301
Octal
53011401
Decimal
11,277,057
Country
US
Tail
N8772M
Type
B38M
Broadcasting now · callsign SWA330 · 29,950 ft
Flights observed
590
Distinct callsigns
20
Country
US
Last broadcast
3h ago

Current position

AC1301 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AC1301 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
SWA1915 - 7 2026-07-05
SWA1914 - 6 2026-07-10
SWA1670 Southwest Airlines 6 2026-06-16
SWA4452 - 5 2026-07-04
SWA3093 - 5 2026-07-09
SWA2316 - 5 2026-07-03
SWA1927 - 5 2026-06-27
SWA1851 - 5 2026-07-01
SWA1713 - 5 2026-06-25
SWA609 Southwest Airlines 4 2026-04-16
SWA365 - 4 2026-07-03
SWA3274 - 4 2026-06-17
SWA3092 - 4 2026-06-27
SWA2170 - 4 2026-06-28
SWA2150 - 4 2026-06-27
SWA2122 - 4 2026-06-16
SWA1903 - 4 2026-06-27
SWA1178 Southwest Airlines 4 2026-05-26
SWA112 Southwest Airlines 4 2026-05-30
SWA948 Southwest Airlines 3 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 SWA587 CUN → AUS Jul 13, 21:45 UTCJul 14, 00:10 UTC2h 25m
2026-07-13 SWA131 DEN → CUN Jul 13, 16:50 UTCJul 13, 20:15 UTC3h 25m
2026-07-13 SWA2966 LAS → DEN Jul 13, 13:50 UTCJul 13, 15:15 UTC1h 25m
2026-07-13 SWA2966 LAS → DEN Jul 13, 13:46 UTCJul 13, 15:12 UTC1h 27m
2026-07-13 SWA2514 - Jul 13, 06:30 UTCJul 13, 06:50 UTC20m
2026-07-13 SWA2514 LIH → LAS Jul 13, 06:19 UTCJul 13, 11:45 UTC5h 26m
2026-07-13 SWA3101 - Jul 13, 00:05 UTCJul 13, 00:25 UTC20m
2026-07-12 SWA2138 - Jul 12, 16:40 UTCJul 12, 17:45 UTC1h 5m
2026-07-12 SWA2138 PHX → OGG Jul 12, 16:36 UTCJul 12, 22:09 UTC5h 33m
2026-07-12 SWA3447 - Jul 12, 14:05 UTCJul 12, 15:05 UTC1h 0m
2026-07-12 SWA1168 LAS → SAN Jul 12, 05:05 UTCJul 12, 05:50 UTC45m
2026-07-12 SWA1168 LAS → SAN Jul 12, 05:05 UTCJul 12, 05:47 UTC42m
2026-07-12 SWA1759 FLV → LAS Jul 12, 01:45 UTCJul 12, 04:05 UTC2h 20m
2026-07-11 SWA562 - Jul 11, 23:35 UTCJul 12, 00:45 UTC1h 10m
2026-07-11 SWA562 BNA → MCI Jul 11, 23:32 UTCJul 12, 00:45 UTC1h 13m
2026-07-11 SWA2707 - Jul 11, 20:40 UTCJul 11, 22:05 UTC1h 25m
2026-07-11 SWA2707 VPS → BNA Jul 11, 20:35 UTCJul 11, 22:28 UTC1h 53m
2026-07-11 SWA2707 - Jul 11, 16:55 UTCJul 11, 19:15 UTC2h 20m
2026-07-11 SWA297 PHX → DEN Jul 11, 14:15 UTCJul 11, 15:35 UTC1h 20m
2026-07-11 SWA3753 SLC → PHX Jul 11, 04:25 UTCJul 11, 05:35 UTC1h 10m
2026-07-11 SWA1180 AUS → SLC Jul 11, 01:20 UTCJul 11, 03:40 UTC2h 20m
2026-07-11 SWA1180 MDW → SAV Jul 11, 01:16 UTCJul 11, 03:32 UTC2h 16m
2026-07-10 SWA3633 SFO → AUS Jul 10, 20:45 UTCJul 10, 23:50 UTC3h 5m
2026-07-10 SWA4603 PHX → SFO Jul 10, 17:50 UTCJul 10, 19:25 UTC1h 35m
2026-07-10 SWA4603 PHX → SFO Jul 10, 17:50 UTCJul 10, 19:18 UTC1h 28m
2026-07-10 SWA1914 LAS → PHX Jul 10, 04:35 UTCJul 10, 05:20 UTC45m
2026-07-10 SWA1914 LAS → PHX Jul 10, 04:34 UTCJul 10, 05:18 UTC44m
2026-07-10 SWA1914 - Jul 10, 02:30 UTCJul 10, 03:30 UTC1h 0m
2026-07-09 SWA1914 - Jul 9, 22:20 UTCJul 9, 22:40 UTC20m
2026-07-09 SWA3093 - Jul 9, 20:10 UTCJul 9, 20:35 UTC25m
2026-07-09 SWA574 MCI → LAX Jul 9, 18:15 UTCJul 9, 18:35 UTC20m
2026-07-09 SWA1925 - Jul 9, 06:50 UTCJul 9, 07:05 UTC15m
2026-07-09 SWA1925 HNL → LIH Jul 9, 06:50 UTCJul 9, 07:13 UTC23m
2026-07-09 SWA2152 UPP → HNL Jul 9, 05:05 UTCJul 9, 05:30 UTC25m
2026-07-09 SWA2152 ITO → HNL Jul 9, 04:54 UTCJul 9, 05:31 UTC37m
2026-07-09 SWA1906 - Jul 9, 03:30 UTCJul 9, 03:55 UTC25m
2026-07-09 SWA1906 HNL → ITO Jul 9, 03:29 UTCJul 9, 04:06 UTC37m
2026-07-09 SWA661 LIH → HNL Jul 9, 01:49 UTCJul 9, 02:09 UTC20m
2026-07-08 SWA1923 - Jul 8, 23:35 UTCJul 8, 23:45 UTC10m
2026-07-08 SWA1923 HNL → LIH Jul 8, 23:32 UTCJul 8, 23:54 UTC22m
2026-07-08 SWA2734 FLL → MSY Jul 8, 22:15 UTCJul 8, 22:25 UTC10m
2026-07-08 SWA2734 FLL → MSY Jul 8, 21:54 UTCJul 8, 22:22 UTC28m
2026-07-08 SWA1921 SAN → LAS Jul 8, 19:50 UTCJul 8, 20:00 UTC10m
2026-07-08 SWA2167 MDW → PHL Jul 8, 18:15 UTCJul 8, 18:45 UTC30m
2026-07-08 SWA655 - Jul 8, 16:30 UTCJul 8, 16:55 UTC25m
2026-07-08 SWA655 HNL → KOA Jul 8, 16:26 UTCJul 8, 16:54 UTC28m
2026-07-08 SWA9000 - Jul 8, 02:50 UTCJul 8, 07:40 UTC4h 50m
2026-07-07 SWA4130 SEA → SJC Jul 7, 23:50 UTCJul 8, 01:25 UTC1h 35m
2026-07-07 SWA4130 DEN → SEA Jul 7, 19:20 UTCJul 7, 21:55 UTC2h 35m
2026-07-07 SWA3261 - Jul 7, 16:40 UTCJul 7, 18:05 UTC1h 25m

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 N8772M page for operator, model, and routing details .

Mode-S AC1301 frequently asked

What is Mode-S code AC1301?
AC1301 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8772M.
Where is Mode-S AC1301 registered?
Mode-S code AC1301 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 AC1301 broadcasting right now?
Yes. Mode-S AC1301 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC1301, octal 53011401, decimal 11,277,057.
What flights does AC1301 operate?
Mode-S AC1301 has broadcast 20 distinct callsigns, including SWA1915, SWA1914, SWA1670, SWA4452, SWA3093.