Apparatus

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sensors Mode-S transponder

A1C6A8

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N213WN · BOEING 737-700 · operated by SOUTHWEST AIRLINES CO

Hex
A1C6A8
Octal
50343250
Decimal
10,602,152
Country
US
Tail
N213WN
Type
B737
Broadcasting now · callsign SWA3323 · 22,975 ft
Flights observed
783
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:55 UTC

Current position

A1C6A8 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A1C6A8 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
SWA2374 Southwest Airlines 7 2026-07-23
SWA2824 - 6 2026-06-15
SWA169 Southwest Airlines 6 2026-05-07
SWA623 Southwest Airlines 5 2026-05-30
SWA2780 Southwest Airlines 5 2026-05-04
SWA2098 - 5 2026-07-12
SWA1577 - 5 2026-07-11
SWA1472 Southwest Airlines 5 2026-05-15
SWA644 Southwest Airlines 4 2026-05-25
SWA600 Southwest Airlines 4 2026-06-20
SWA537 - 4 2026-07-01
SWA4758 Southwest Airlines 4 2026-07-25
SWA470 Southwest Airlines 4 2026-06-29
SWA3969 Southwest Airlines 4 2026-05-19
SWA312 Southwest Airlines 4 2026-07-22
SWA3078 Southwest Airlines 4 2026-04-20
SWA2333 - 4 2026-07-05
SWA1775 Southwest Airlines 4 2026-04-17
SWA1761 Southwest Airlines 4 2026-05-18
SWA1599 Southwest Airlines 4 2026-07-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA336 BUR → SJC Jul 26, 20:05 UTCJul 26, 21:55 UTC1h 50m
2026-07-26 SWA4708 MDW → ATL Jul 26, 17:15 UTCJul 26, 18:45 UTC1h 30m
2026-07-26 SWA4708 MDW → ATL Jul 26, 15:15 UTCJul 26, 16:05 UTC50m
2026-07-26 SWA3053 SAN → SFO Jul 26, 13:15 UTCJul 26, 14:15 UTC1h 0m
2026-07-26 SWA1843 PHX → BWI Jul 26, 02:18 UTCJul 26, 04:22 UTC2h 4m
2026-07-26 SWA1843 PHX → BWI Jul 26, 02:20 UTCJul 26, 04:25 UTC2h 5m
2026-07-25 SWA1285 MEM → ATL Jul 25, 21:15 UTCJul 26, 00:25 UTC3h 10m
2026-07-25 SWA1310 SAN → LAS Jul 25, 18:00 UTCJul 25, 20:05 UTC2h 5m
2026-07-25 SWA3254 OKC → ATL Jul 25, 14:15 UTCJul 25, 16:15 UTC2h 0m
2026-07-25 SWA3254 OKC → ATL Jul 25, 14:11 UTCJul 25, 16:17 UTC2h 6m
2026-07-25 SWA2578 LAS → PHX Jul 25, 11:05 UTCJul 25, 13:15 UTC2h 10m
2026-07-25 SWA4758 MDW → BNA Jul 25, 05:20 UTCJul 25, 06:35 UTC1h 15m
2026-07-25 SWA4758 MDW → BNA Jul 25, 05:17 UTCJul 25, 06:34 UTC1h 17m
2026-07-25 SWA4758 MDW → BNA Jul 25, 02:55 UTCJul 25, 04:30 UTC1h 35m
2026-07-24 SWA4758 MDW → BNA Jul 24, 22:40 UTCJul 25, 02:05 UTC3h 25m
2026-07-24 SWA893 HOU → LGA Jul 24, 20:35 UTCJul 24, 21:25 UTC50m
2026-07-24 SWA705 SJC → LAX Jul 24, 15:45 UTCJul 24, 17:05 UTC1h 20m
2026-07-24 SWA705 SJC → LAX Jul 24, 15:40 UTCJul 24, 16:58 UTC1h 18m
2026-07-24 SWA705 SJC → LAX Jul 24, 14:10 UTCJul 24, 14:35 UTC25m
2026-07-24 SWA3026 PHX → OAK Jul 24, 12:05 UTCJul 24, 13:00 UTC55m
2026-07-24 SWA603 BUR → SFO Jul 24, 00:05 UTCJul 24, 01:05 UTC1h 0m
2026-07-23 SWA2374 OAK → PSP Jul 23, 21:50 UTCJul 23, 23:00 UTC1h 10m
2026-07-23 SWA2374 OAK → PSP Jul 23, 21:45 UTCJul 23, 22:52 UTC1h 7m
2026-07-23 SWA2374 OAK → PSP Jul 23, 18:40 UTCJul 23, 20:50 UTC2h 10m
2026-07-23 SWA2374 OAK → PSP Jul 23, 16:05 UTCJul 23, 17:15 UTC1h 10m
2026-07-23 SWA4919 BNA → MKE Jul 23, 14:20 UTCJul 23, 15:10 UTC50m
2026-07-23 SWA4919 BNA → MKE Jul 23, 14:19 UTCJul 23, 15:09 UTC50m
2026-07-23 SWA1683 ONT → LAS Jul 23, 06:55 UTCJul 23, 08:05 UTC1h 10m
2026-07-23 SWA1683 ONT → LAS Jul 23, 06:52 UTCJul 23, 08:00 UTC1h 8m
2026-07-23 SWA1683 ONT → LAS Jul 23, 04:35 UTCJul 23, 06:05 UTC1h 30m
2026-07-23 SWA1599 SEA → OAK Jul 23, 01:20 UTCJul 23, 03:05 UTC1h 45m
2026-07-22 SWA1599 SEA → OAK Jul 22, 21:15 UTCJul 22, 21:40 UTC25m
2026-07-22 SWA1599 SEA → OAK Jul 22, 21:13 UTCJul 22, 21:46 UTC33m
2026-07-22 SWA1599 SEA → OAK Jul 22, 18:55 UTCJul 22, 20:20 UTC1h 25m
2026-07-22 SWA312 SAN → OAK Jul 22, 16:50 UTCJul 22, 17:50 UTC1h 0m
2026-07-22 SWA4813 - Jul 22, 14:40 UTCJul 22, 15:50 UTC1h 10m
2026-07-22 SWA4191 STL → MSY Jul 22, 04:15 UTCJul 22, 05:20 UTC1h 5m
2026-07-21 SWA2696 DAL → SAN Jul 21, 22:20 UTCJul 22, 02:40 UTC4h 20m
2026-07-21 SWA400 SAN → AUS Jul 21, 18:40 UTCJul 21, 21:05 UTC2h 25m
2026-07-21 SWA1729 OAK → SAN Jul 21, 15:15 UTCJul 21, 17:30 UTC2h 15m
2026-07-21 SWA1729 OAK → SAN Jul 21, 15:10 UTCJul 21, 17:27 UTC2h 17m
2026-07-21 SWA4646 - Jul 21, 10:35 UTCJul 21, 12:40 UTC2h 5m
2026-07-21 SWA4321 - Jul 21, 03:25 UTCJul 21, 04:00 UTC35m
2026-07-21 SWA4321 BWI → ISP Jul 21, 03:20 UTCJul 21, 04:02 UTC42m
2026-07-21 SWA478 OAK → SAN Jul 21, 00:20 UTCJul 21, 01:15 UTC55m
2026-07-20 SWA478 OAK → SAN Jul 20, 22:30 UTCJul 20, 23:15 UTC45m
2026-07-20 SWA478 OAK → SAN Jul 20, 19:45 UTCJul 20, 21:20 UTC1h 35m
2026-07-20 SWA3395 PHX → SJC Jul 20, 17:30 UTCJul 20, 18:40 UTC1h 10m
2026-07-20 SWA3395 PHX → SJC Jul 20, 17:29 UTCJul 20, 18:44 UTC1h 15m
2026-07-20 SWA3796 HNL → OAK Jul 20, 14:40 UTCJul 20, 16:05 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 N213WN page for operator, model, and routing details .

Mode-S A1C6A8 frequently asked

What is Mode-S code A1C6A8?
A1C6A8 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N213WN.
Where is Mode-S A1C6A8 registered?
Mode-S code A1C6A8 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 A1C6A8 broadcasting right now?
Yes. Mode-S A1C6A8 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1C6A8, octal 50343250, decimal 10,602,152.
What flights does A1C6A8 operate?
Mode-S A1C6A8 has broadcast 20 distinct callsigns, including SWA2374, SWA2824, SWA169, SWA623, SWA2780.