Apparatus

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sensors Mode-S transponder

AC2F83

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8843S · BOEING 737 MAX 8 · operated by SOUTHWEST AIRLINES CO

Hex
AC2F83
Octal
53027603
Decimal
11,284,355
Country
US
Tail
N8843S
Type
B38M
Broadcasting now · callsign SWA3238 · 28,800 ft
Flights observed
775
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:45 UTC

Current position

AC2F83 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AC2F83 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
SWA843 - 5 2026-07-13
SWA1266 Southwest Airlines 5 2026-04-21
SWA864 - 4 2026-06-28
SWA4830 Southwest Airlines 4 2026-07-20
SWA431 Southwest Airlines 4 2026-07-23
SWA3203 Southwest Airlines 4 2026-05-29
SWA3147 - 4 2026-04-13
SWA1774 Southwest Airlines 4 2026-06-11
SWA1459 - 4 2026-07-19
SWA995 Southwest Airlines 3 2026-07-26
SWA958 - 3 2026-07-14
SWA946 Southwest Airlines 3 2026-05-09
SWA930 Southwest Airlines 3 2026-06-08
SWA690 Southwest Airlines 3 2026-05-15
SWA660 Southwest Airlines 3 2026-07-21
SWA645 - 3 2026-07-04
SWA451 Southwest Airlines 3 2026-06-09
SWA4392 Southwest Airlines 3 2026-06-08
SWA4338 - 3 2026-07-09
SWA4322 - 3 2026-07-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA4528 MCO → CMH Jul 26, 19:55 UTCJul 26, 22:45 UTC2h 50m
2026-07-26 SWA346 BOS → BNA Jul 26, 16:35 UTCJul 26, 17:55 UTC1h 20m
2026-07-26 SWA2833 PHX → SMF Jul 26, 13:55 UTCJul 26, 15:30 UTC1h 35m
2026-07-26 SWA2833 PHX → SMF Jul 26, 13:52 UTCJul 26, 15:33 UTC1h 41m
2026-07-26 SWA995 MDW → SDF Jul 26, 10:35 UTCJul 26, 12:10 UTC1h 35m
2026-07-26 SWA1961 SAN → SJC Jul 26, 03:00 UTCJul 26, 04:40 UTC1h 40m
2026-07-26 SWA1961 SAN → SJC Jul 26, 02:00 UTCJul 26, 02:45 UTC45m
2026-07-26 SWA1961 SAN → SJC Jul 26, 01:55 UTCJul 26, 04:29 UTC2h 34m
2026-07-25 SWA2785 PDX → DEN Jul 25, 22:50 UTCJul 26, 00:45 UTC1h 55m
2026-07-25 SWA2785 PDX → DEN Jul 25, 22:47 UTCJul 26, 00:47 UTC2h 1m
2026-07-25 SWA4061 LGA → HOU Jul 25, 19:55 UTCJul 25, 21:30 UTC1h 35m
2026-07-25 SWA1183 LAS → SFO Jul 25, 17:00 UTCJul 25, 18:30 UTC1h 30m
2026-07-25 SWA1183 LAS → SFO Jul 25, 16:58 UTCJul 25, 18:25 UTC1h 27m
2026-07-25 SWA1183 LAS → SFO Jul 25, 13:50 UTCJul 25, 15:40 UTC1h 50m
2026-07-25 SWA3651 BUR → OAK Jul 25, 09:30 UTCJul 25, 12:40 UTC3h 10m
2026-07-25 SWA3651 BUR → OAK Jul 25, 09:25 UTCJul 25, 12:33 UTC3h 8m
2026-07-25 SWA4221 BUR → SJC Jul 25, 00:25 UTCJul 25, 01:50 UTC1h 25m
2026-07-25 SWA4221 BUR → SJC Jul 25, 00:20 UTCJul 25, 01:48 UTC1h 28m
2026-07-24 SWA3081 DCA → MSY Jul 24, 19:55 UTCJul 24, 23:15 UTC3h 20m
2026-07-24 SWA3081 DCA → MSY Jul 24, 19:54 UTCJul 24, 23:10 UTC3h 16m
2026-07-24 SWA3081 DCA → MSY Jul 24, 17:00 UTCJul 24, 18:30 UTC1h 30m
2026-07-24 SWA266 BUR → SJC Jul 24, 13:25 UTCJul 24, 15:10 UTC1h 45m
2026-07-24 SWA266 BUR → SJC Jul 24, 13:22 UTCJul 24, 15:07 UTC1h 46m
2026-07-24 SWA4985 MCO → MDW Jul 24, 05:25 UTCJul 24, 06:50 UTC1h 25m
2026-07-24 SWA3603 SJC → EUG Jul 24, 03:05 UTCJul 24, 04:05 UTC1h 0m
2026-07-24 SWA590 MCO → ATL Jul 24, 01:30 UTCJul 24, 02:15 UTC45m
2026-07-23 SWA3155 LAX → DEN Jul 23, 23:10 UTCJul 24, 00:00 UTC50m
2026-07-23 SWA3807 MDW → OAK Jul 23, 21:12 UTCJul 23, 22:13 UTC1h 1m
2026-07-23 SWA3807 MDW → OAK Jul 23, 21:15 UTCJul 23, 22:15 UTC1h 0m
2026-07-23 SWA3167 AMA → DAL Jul 23, 19:25 UTCJul 23, 20:20 UTC55m
2026-07-23 SWA3167 AMA → DAL Jul 23, 19:20 UTCJul 23, 20:19 UTC59m
2026-07-23 SWA431 BUR → SJC Jul 23, 17:30 UTCJul 23, 18:20 UTC50m
2026-07-23 SWA431 BUR → SJC Jul 23, 14:55 UTCJul 23, 16:25 UTC1h 30m
2026-07-23 SWA2546 DEN → OAK Jul 23, 12:15 UTCJul 23, 13:40 UTC1h 25m
2026-07-23 SWA563 LAS → DAL Jul 23, 03:30 UTCJul 23, 04:45 UTC1h 15m
2026-07-23 SWA1142 DAL → LGA Jul 23, 00:35 UTCJul 23, 01:45 UTC1h 10m
2026-07-22 SWA1142 DAL → LGA Jul 22, 21:05 UTCJul 22, 23:45 UTC2h 40m
2026-07-22 SWA3263 PHL → TPA Jul 22, 18:25 UTCJul 22, 19:50 UTC1h 25m
2026-07-22 SWA3263 PHL → TPA Jul 22, 16:10 UTCJul 22, 17:00 UTC50m
2026-07-22 SWA3489 SJC → SAN Jul 22, 13:40 UTCJul 22, 14:45 UTC1h 5m
2026-07-22 SWA3542 SAN → SJC Jul 22, 04:05 UTCJul 22, 05:05 UTC1h 0m
2026-07-22 SWA3542 SAN → SJC Jul 22, 04:04 UTCJul 22, 05:00 UTC56m
2026-07-21 SWA3018 OAK → SEA Jul 21, 23:45 UTCJul 22, 02:55 UTC3h 10m
2026-07-21 SWA2421 SJC → PHX Jul 21, 19:30 UTCJul 21, 22:15 UTC2h 45m
2026-07-21 SWA706 DEN → PHX Jul 21, 17:00 UTCJul 21, 18:25 UTC1h 25m
2026-07-21 SWA3526 BDL → MCO Jul 21, 13:15 UTCJul 21, 15:25 UTC2h 10m
2026-07-21 SWA660 SAN → OAK Jul 21, 06:40 UTCJul 21, 07:35 UTC55m
2026-07-21 SWA660 SAN → OAK Jul 21, 06:36 UTCJul 21, 07:30 UTC54m
2026-07-21 SWA660 SAN → OAK Jul 21, 01:25 UTCJul 21, 05:20 UTC3h 55m
2026-07-20 SWA4618 LAS → OAK Jul 20, 22:00 UTCJul 21, 00:15 UTC2h 14m

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 N8843S page for operator, model, and routing details .

Mode-S AC2F83 frequently asked

What is Mode-S code AC2F83?
AC2F83 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8843S.
Where is Mode-S AC2F83 registered?
Mode-S code AC2F83 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 AC2F83 broadcasting right now?
Yes. Mode-S AC2F83 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC2F83, octal 53027603, decimal 11,284,355.
What flights does AC2F83 operate?
Mode-S AC2F83 has broadcast 20 distinct callsigns, including SWA843, SWA1266, SWA864, SWA4830, SWA431.