Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AC5ED9

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8966S · BOEING 737 MAX 8 · operated by BOEING CO

Hex
AC5ED9
Octal
53057331
Decimal
11,296,473
Country
US
Tail
N8966S
Type
B38M
Broadcasting now · callsign SWA1929 · 37,000 ft
Flights observed
737
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 14:25 UTC

Current position

AC5ED9 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AC5ED9 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
SWA2839 Southwest Airlines 5 2026-05-05
SWA4127 Southwest Airlines 4 2026-07-22
SWA4005 Southwest Airlines 4 2026-05-31
SWA3419 Southwest Airlines 4 2026-07-26
SWA3123 - 4 2026-07-09
SWA2345 - 4 2026-07-16
SWA2283 Southwest Airlines 4 2026-05-01
SWA2104 - 4 2026-07-09
SWA995 Southwest Airlines 3 2026-06-03
SWA935 Southwest Airlines 3 2026-04-17
SWA645 Southwest Airlines 3 2026-05-11
SWA611 - 3 2026-06-19
SWA481 Southwest Airlines 3 2026-05-21
SWA472 Southwest Airlines 3 2026-04-13
SWA4397 - 3 2026-07-15
SWA4350 Southwest Airlines 3 2026-05-25
SWA333 Southwest Airlines 3 2026-04-13
SWA3300 Southwest Airlines 3 2026-05-24
SWA3262 Southwest Airlines 3 2026-07-24
SWA3186 - 3 2026-07-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA3419 SJC → SAN Jul 26, 14:00 UTCJul 26, 14:15 UTC15m
2026-07-26 SWA3419 SJC → SAN Jul 26, 14:00 UTCJul 26, 14:21 UTC21m
2026-07-26 SWA800 MDW → PIT Jul 26, 10:35 UTCJul 26, 12:45 UTC2h 10m
2026-07-26 SWA800 MDW → PIT Jul 26, 10:31 UTCJul 26, 12:41 UTC2h 11m
2026-07-26 SWA1488 SJC → PHX Jul 26, 02:15 UTCJul 26, 04:15 UTC2h 0m
2026-07-25 SWA376 FLL → MDW Jul 25, 21:30 UTCJul 26, 01:00 UTC3h 30m
2026-07-25 SWA376 FLL → MDW Jul 25, 21:27 UTCJul 26, 00:54 UTC3h 28m
2026-07-25 SWA4688 HOU → OKC Jul 25, 18:45 UTCJul 25, 20:10 UTC1h 25m
2026-07-25 SWA4688 HOU → OKC Jul 25, 18:42 UTCJul 25, 20:10 UTC1h 28m
2026-07-25 SWA705 SJC → LAX Jul 25, 16:20 UTCJul 25, 17:40 UTC1h 20m
2026-07-25 SWA705 SJC → LAX Jul 25, 16:15 UTCJul 25, 17:32 UTC1h 17m
2026-07-25 SWA1492 LAX → OAK Jul 25, 13:30 UTCJul 25, 15:00 UTC1h 30m
2026-07-25 SWA4663 DAL → MKE Jul 25, 10:15 UTCJul 25, 11:45 UTC1h 30m
2026-07-25 SWA4663 DAL → MKE Jul 25, 10:14 UTCJul 25, 11:38 UTC1h 24m
2026-07-25 SWA597 PHX → MCO Jul 25, 04:15 UTCJul 25, 05:25 UTC1h 10m
2026-07-25 SWA3462 CMH → MDW Jul 25, 01:10 UTCJul 25, 02:55 UTC1h 45m
2026-07-24 SWA957 OAK → PDX Jul 24, 20:40 UTCJul 25, 00:00 UTC3h 20m
2026-07-24 SWA3262 SJC → BOI Jul 24, 18:20 UTCJul 24, 19:40 UTC1h 20m
2026-07-24 SWA1675 SJC → LAS Jul 24, 12:45 UTCJul 24, 14:10 UTC1h 25m
2026-07-24 SWA1675 SJC → LAS Jul 24, 12:43 UTCJul 24, 14:05 UTC1h 22m
2026-07-24 SWA2230 SFO → LAX Jul 24, 05:25 UTCJul 24, 06:50 UTC1h 25m
2026-07-24 SWA2230 SFO → LAX Jul 24, 05:24 UTCJul 24, 06:46 UTC1h 22m
2026-07-24 SWA5126 TPA → BWI Jul 24, 03:00 UTCJul 24, 04:05 UTC1h 5m
2026-07-24 SWA5054 AUS → ATL Jul 24, 00:30 UTCJul 24, 01:30 UTC1h 0m
2026-07-23 SWA1158 DEN → AUS Jul 23, 19:30 UTCJul 23, 23:20 UTC3h 50m
2026-07-23 SWA1813 - Jul 23, 17:45 UTCJul 23, 18:30 UTC45m
2026-07-23 SWA1813 - Jul 23, 14:05 UTCJul 23, 16:40 UTC2h 35m
2026-07-23 SWA1309 - Jul 23, 11:15 UTCJul 23, 12:15 UTC1h 0m
2026-07-23 SWA1309 DAL → ELP Jul 23, 11:13 UTCJul 23, 12:25 UTC1h 12m
2026-07-23 SWA3904 ATL → MIA Jul 23, 02:55 UTCJul 23, 04:10 UTC1h 15m
2026-07-23 SWA3904 ATL → MIA Jul 23, 02:54 UTCJul 23, 04:07 UTC1h 13m
2026-07-23 SWA3457 HOU → LGA Jul 23, 00:10 UTCJul 23, 02:00 UTC1h 50m
2026-07-23 SWA3457 HOU → LGA Jul 23, 00:09 UTCJul 23, 01:50 UTC1h 41m
2026-07-22 SWA1389 LAS → SJC Jul 22, 20:45 UTCJul 22, 23:05 UTC2h 20m
2026-07-22 SWA4127 BWI → ORF Jul 22, 18:15 UTCJul 22, 19:15 UTC1h 0m
2026-07-22 SWA4127 BWI → ORF Jul 22, 18:10 UTCJul 22, 19:11 UTC1h 1m
2026-07-22 SWA4013 - Jul 22, 15:50 UTCJul 22, 16:55 UTC1h 5m
2026-07-22 SWA2637 - Jul 22, 13:00 UTCJul 22, 14:50 UTC1h 50m
2026-07-22 SWA3070 BWI → ATL Jul 22, 02:10 UTCJul 22, 03:45 UTC1h 35m
2026-07-22 SWA3070 BWI → ATL Jul 22, 02:07 UTCJul 22, 03:40 UTC1h 33m
2026-07-22 SWA2286 LAS → OAK Jul 22, 00:05 UTCJul 22, 01:10 UTC1h 5m
2026-07-21 SWA2286 PHX → LAS Jul 21, 22:15 UTCJul 21, 23:00 UTC45m
2026-07-21 SWA3304 - Jul 21, 18:30 UTCJul 21, 20:40 UTC2h 10m
2026-07-21 SWA2287 BUR → SFO Jul 21, 14:15 UTCJul 21, 17:05 UTC2h 50m
2026-07-21 SWA2593 - Jul 21, 03:15 UTCJul 21, 05:40 UTC2h 25m
2026-07-20 SWA2593 DCA → AUS Jul 20, 23:20 UTCJul 21, 02:10 UTC2h 49m
2026-07-20 SWA1241 SJC → DEN Jul 20, 16:40 UTCJul 20, 20:45 UTC4h 5m
2026-07-20 SWA1241 SJC → DEN Jul 20, 16:36 UTCJul 20, 20:44 UTC4h 9m
2026-07-20 SWA1241 SJC → DEN Jul 20, 14:15 UTCJul 20, 15:20 UTC1h 5m
2026-07-20 SWA4981 - Jul 20, 12:00 UTCJul 20, 13:15 UTC1h 15m

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 N8966S page for operator, model, and routing details .

Mode-S AC5ED9 frequently asked

What is Mode-S code AC5ED9?
AC5ED9 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8966S.
Where is Mode-S AC5ED9 registered?
Mode-S code AC5ED9 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 AC5ED9 broadcasting right now?
Yes. Mode-S AC5ED9 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC5ED9, octal 53057331, decimal 11,296,473.
What flights does AC5ED9 operate?
Mode-S AC5ED9 has broadcast 20 distinct callsigns, including SWA2839, SWA4127, SWA4005, SWA3419, SWA3123.