Apparatus

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sensors Mode-S transponder

AC3A60

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8871Q · BOEING 737 MAX 8 · operated by SOUTHWEST AIRLINES CO

Hex
AC3A60
Octal
53035140
Decimal
11,287,136
Country
US
Tail
N8871Q
Type
B38M
Broadcasting now · callsign SWA534 · 5,975 ft
Flights observed
617
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Current position

AC3A60 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AC3A60 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
SWA3541 Southwest Airlines 7 2026-04-27
SWA2218 - 6 2026-07-06
SWA159 Southwest Airlines 6 2026-04-27
SWA1423 Southwest Airlines 6 2026-06-15
SWA4350 - 5 2026-06-15
SWA3610 Southwest Airlines 5 2026-04-18
SWA2708 Southwest Airlines 5 2026-06-11
SWA26 - 5 2026-06-28
SWA5 Southwest Airlines 4 2026-04-19
SWA443 Southwest Airlines 4 2026-06-14
SWA2861 Southwest Airlines 4 2026-05-20
SWA2454 Southwest Airlines 4 2026-05-25
SWA234 Southwest Airlines 4 2026-05-29
SWA1257 Southwest Airlines 4 2026-04-24
SWA963 - 3 2026-07-11
SWA899 Southwest Airlines 3 2026-06-20
SWA827 - 3 2026-04-13
SWA787 - 3 2026-04-13
SWA712 Southwest Airlines 3 2026-06-02
SWA553 - 3 2026-04-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 SWA259 AUS → BNA Jul 13, 23:00 UTCJul 14, 00:40 UTC1h 40m
2026-07-13 SWA3234 - Jul 13, 21:45 UTCJul 13, 21:50 UTC5m
2026-07-13 SWA3234 PHX → AUS Jul 13, 19:35 UTCJul 13, 21:50 UTC2h 15m
2026-07-13 SWA3234 PHX → AUS Jul 13, 19:31 UTCJul 13, 21:26 UTC1h 55m
2026-07-13 SWA1166 DAL → PHX Jul 13, 16:15 UTCJul 13, 18:10 UTC1h 55m
2026-07-13 SWA1166 DAL → PHX Jul 13, 16:14 UTCJul 13, 18:13 UTC1h 59m
2026-07-13 SWA2216 LAS → DAL Jul 13, 12:25 UTCJul 13, 14:45 UTC2h 20m
2026-07-13 SWA2216 LAS → DAL Jul 13, 12:25 UTCJul 13, 14:42 UTC2h 18m
2026-07-13 SWA1100 - Jul 13, 04:45 UTCJul 13, 07:01 UTC2h 15m
2026-07-12 SWA1100 - Jul 12, 21:20 UTCJul 13, 02:30 UTC5h 10m
2026-07-12 SWA4434 DEN → BWI Jul 12, 16:27 UTCJul 12, 19:29 UTC3h 2m
2026-07-12 SWA4434 DEN → BWI Jul 12, 16:30 UTCJul 12, 19:30 UTC3h 0m
2026-07-12 SWA3424 BZN → DEN Jul 12, 13:46 UTCJul 12, 15:00 UTC1h 14m
2026-07-12 SWA1463 LAS → DEN Jul 12, 02:20 UTCJul 12, 15:01 UTC12h 40m
2026-07-11 SWA1463 - Jul 11, 20:55 UTCJul 12, 01:15 UTC4h 20m
2026-07-11 SWA2810 MDW → RDU Jul 11, 18:10 UTCJul 11, 19:40 UTC1h 30m
2026-07-11 SWA2810 SEA → MDW Jul 11, 13:30 UTCJul 11, 17:00 UTC3h 30m
2026-07-11 SWA963 LAS → SEA Jul 11, 05:55 UTCJul 11, 07:45 UTC1h 50m
2026-07-11 SWA963 LAS → SEA Jul 11, 05:51 UTCJul 11, 07:44 UTC1h 53m
2026-07-11 SWA963 - Jul 11, 02:30 UTCJul 11, 04:45 UTC2h 15m
2026-07-10 SWA2334 - Jul 10, 23:10 UTCJul 11, 01:30 UTC2h 20m
2026-07-10 SWA2334 - Jul 10, 21:15 UTCJul 10, 21:55 UTC40m
2026-07-10 SWA2260 LAS → LGB Jul 10, 18:55 UTCJul 10, 19:35 UTC40m
2026-07-10 SWA3601 SBA → LAS Jul 10, 16:50 UTCJul 10, 17:40 UTC50m
2026-07-10 SWA3601 SMF → SBA Jul 10, 14:50 UTCJul 10, 15:45 UTC55m
2026-07-10 SWA367 GEG → SMF Jul 10, 12:10 UTCJul 10, 13:40 UTC1h 30m
2026-07-10 SWA4268 - Jul 10, 06:30 UTCJul 10, 08:20 UTC1h 50m
2026-07-10 SWA3119 OKC → LAS Jul 10, 03:20 UTCJul 10, 05:30 UTC2h 10m
2026-07-10 SWA1653 - Jul 10, 01:10 UTCJul 10, 02:25 UTC1h 15m
2026-07-10 SWA1653 DEN → OKC Jul 10, 01:07 UTCJul 10, 02:21 UTC1h 14m
2026-07-09 SWA2455 LGA → DEN Jul 9, 18:40 UTCJul 9, 23:35 UTC4h 55m
2026-07-09 SWA1966 BNA → LGA Jul 9, 15:10 UTCJul 9, 17:10 UTC2h 0m
2026-07-09 SWA2959 - Jul 9, 12:40 UTCJul 9, 13:40 UTC1h 0m
2026-07-09 SWA1772 - Jul 9, 10:20 UTCJul 9, 11:10 UTC50m
2026-07-09 SWA2940 DEN → DSM Jul 9, 02:50 UTCJul 9, 04:35 UTC1h 45m
2026-07-08 SWA3044 OAK → DEN Jul 8, 23:15 UTCJul 9, 01:10 UTC1h 56m
2026-07-08 SWA3044 OAK → DEN Jul 8, 23:15 UTCJul 9, 01:10 UTC1h 55m
2026-07-08 SWA2676 - Jul 8, 17:25 UTCJul 8, 20:50 UTC3h 25m
2026-07-08 SWA4572 - Jul 8, 13:10 UTCJul 8, 16:00 UTC2h 50m
2026-07-08 SWA4572 LGA → HOU Jul 8, 12:58 UTCJul 8, 16:03 UTC3h 5m
2026-07-07 SWA2564 - Jul 7, 23:05 UTCJul 8, 01:30 UTC2h 25m
2026-07-07 SWA2564 MCI → LGA Jul 7, 23:01 UTCJul 8, 01:26 UTC2h 26m
2026-07-07 SWA1587 DEN → MCI Jul 7, 20:48 UTCJul 7, 21:58 UTC1h 10m
2026-07-07 SWA1587 - Jul 7, 20:50 UTCJul 7, 22:00 UTC1h 10m
2026-07-07 SWA3690 - Jul 7, 17:25 UTCJul 7, 19:15 UTC1h 50m
2026-07-07 SWA3348 PHX → SNA Jul 7, 15:20 UTCJul 7, 16:15 UTC55m
2026-07-07 SWA3348 PHX → SNA Jul 7, 15:19 UTCJul 7, 16:14 UTC55m
2026-07-07 SWA4557 ABQ → PHX Jul 7, 13:10 UTCJul 7, 14:05 UTC55m
2026-07-07 SWA2863 - Jul 7, 06:55 UTCJul 7, 07:40 UTC45m
2026-07-07 SWA3452 - Jul 7, 03:25 UTCJul 7, 04:50 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 N8871Q page for operator, model, and routing details .

Mode-S AC3A60 frequently asked

What is Mode-S code AC3A60?
AC3A60 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8871Q.
Where is Mode-S AC3A60 registered?
Mode-S code AC3A60 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 AC3A60 broadcasting right now?
Yes. Mode-S AC3A60 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC3A60, octal 53035140, decimal 11,287,136.
What flights does AC3A60 operate?
Mode-S AC3A60 has broadcast 20 distinct callsigns, including SWA3541, SWA2218, SWA159, SWA1423, SWA4350.