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sensors Mode-S transponder

AC00B1

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8724J · BOEING 737 MAX 8 · operated by UMB BANK NA TRUSTEE

Hex
AC00B1
Octal
53000261
Decimal
11,272,369
Country
US
Tail
N8724J
Type
B38M
Broadcasting now · callsign SWA888 · 19,025 ft
Flights observed
626
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Current position

AC00B1 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AC00B1 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
SWA2396 - 6 2026-07-05
SWA808 Southwest Airlines 5 2026-06-01
SWA2151 Southwest Airlines 5 2026-06-05
SWA665 - 4 2026-06-25
SWA587 Southwest Airlines 4 2026-05-20
SWA55 Southwest Airlines 4 2026-04-28
SWA510 Southwest Airlines 4 2026-04-15
SWA3895 Southwest Airlines 4 2026-06-02
SWA3807 Southwest Airlines 4 2026-05-05
SWA3693 - 4 2026-04-13
SWA2656 Southwest Airlines 4 2026-05-21
SWA1987 Southwest Airlines 4 2026-06-03
SWA1914 - 4 2026-06-19
SWA971 - 3 2026-07-12
SWA869 Southwest Airlines 3 2026-05-30
SWA589 Southwest Airlines 3 2026-06-08
SWA501 Southwest Airlines 3 2026-05-17
SWA489 Southwest Airlines 3 2026-06-12
SWA4537 Southwest Airlines 3 2026-07-04
SWA4282 Southwest Airlines 3 2026-05-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SWA2641 - Jul 14, 18:00 UTCJul 14, 19:55 UTC1h 55m
2026-07-14 SWA3649 SFO → MDW Jul 14, 07:45 UTCJul 14, 11:30 UTC3h 45m
2026-07-14 SWA3161 LAX → SFO Jul 14, 04:00 UTCJul 14, 05:05 UTC1h 5m
2026-07-14 SWA3161 LAX → SFO Jul 14, 04:00 UTCJul 14, 05:00 UTC1h 0m
2026-07-14 SWA3161 - Jul 14, 00:20 UTCJul 14, 02:55 UTC2h 35m
2026-07-13 SWA30 - Jul 13, 21:35 UTCJul 13, 22:20 UTC45m
2026-07-13 SWA30 - Jul 13, 19:15 UTCJul 13, 19:50 UTC35m
2026-07-13 SWA3 - Jul 13, 14:40 UTCJul 13, 15:15 UTC35m
2026-07-13 SWA3 HOU → CRP Jul 13, 14:36 UTCJul 13, 15:18 UTC42m
2026-07-13 SWA3 - Jul 13, 12:50 UTCJul 13, 13:30 UTC40m
2026-07-13 SWA2220 LAS → DAL Jul 13, 02:19 UTCJul 13, 04:38 UTC2h 20m
2026-07-13 SWA2220 LAS → DAL Jul 13, 02:20 UTCJul 13, 04:40 UTC2h 20m
2026-07-12 SWA3184 IND → LAS Jul 12, 21:15 UTCJul 13, 00:25 UTC3h 10m
2026-07-12 SWA1553 - Jul 12, 18:10 UTCJul 12, 20:10 UTC2h 0m
2026-07-12 SWA971 - Jul 12, 15:35 UTCJul 12, 16:50 UTC1h 15m
2026-07-12 SWA971 TUL → DEN Jul 12, 15:35 UTCJul 12, 16:49 UTC1h 14m
2026-07-12 SWA971 - Jul 12, 13:01 UTCJul 12, 13:35 UTC35m
2026-07-12 SWA4814 TUL → DAL Jul 12, 10:35 UTCJul 12, 11:35 UTC1h 0m
2026-07-12 SWA3266 - Jul 12, 02:35 UTCJul 12, 04:55 UTC2h 20m
2026-07-12 SWA3266 PHX → TUL Jul 12, 02:33 UTCJul 12, 04:54 UTC2h 21m
2026-07-11 SWA3266 SJC → PHX Jul 11, 23:40 UTCJul 12, 01:20 UTC1h 40m
2026-07-11 SWA3820 SAN → SJC Jul 11, 21:30 UTCJul 11, 22:26 UTC56m
2026-07-11 SWA3820 SAN → SJC Jul 11, 21:30 UTCJul 11, 22:25 UTC55m
2026-07-11 SWA866 DEN → SAN Jul 11, 16:20 UTCJul 11, 20:15 UTC3h 55m
2026-07-11 SWA698 - Jul 11, 13:40 UTCJul 11, 15:05 UTC1h 25m
2026-07-11 SWA2554 PHX → BOI Jul 11, 06:15 UTCJul 11, 07:50 UTC1h 35m
2026-07-11 SWA2554 PHX → BOI Jul 11, 06:13 UTCJul 11, 07:46 UTC1h 33m
2026-07-11 SWA3125 OKC → PHX Jul 11, 03:30 UTCJul 11, 05:20 UTC1h 50m
2026-07-11 SWA611 LAS → OKC Jul 11, 00:25 UTCJul 11, 02:35 UTC2h 10m
2026-07-10 SWA611 PHX → LAS Jul 10, 22:30 UTCJul 10, 23:10 UTC40m
2026-07-10 SWA3623 SEA → PHX Jul 10, 18:50 UTCJul 10, 21:10 UTC2h 20m
2026-07-10 SWA3623 SEA → PHX Jul 10, 18:50 UTCJul 10, 21:09 UTC2h 19m
2026-07-10 SWA1406 DAL → SEA Jul 10, 13:40 UTCJul 10, 17:25 UTC3h 45m
2026-07-10 SWA1406 TPA → DAL Jul 10, 10:15 UTCJul 10, 12:20 UTC2h 5m
2026-07-10 SWA472 - Jul 10, 01:15 UTCJul 10, 03:10 UTC1h 55m
2026-07-10 SWA472 PIT → TPA Jul 10, 01:12 UTCJul 10, 03:13 UTC2h 1m
2026-07-09 SWA4491 - Jul 9, 20:45 UTCJul 10, 00:20 UTC3h 35m
2026-07-09 SWA323 - Jul 9, 16:55 UTCJul 9, 19:10 UTC2h 15m
2026-07-09 SWA3034 OAK → AUS Jul 9, 12:45 UTCJul 9, 15:45 UTC3h 0m
2026-07-09 SWA4841 SAN → OAK Jul 9, 05:20 UTCJul 9, 06:25 UTC1h 5m
2026-07-09 SWA4841 SAN → OAK Jul 9, 05:20 UTCJul 9, 06:15 UTC56m
2026-07-09 SWA2601 - Jul 9, 03:05 UTCJul 9, 04:15 UTC1h 10m
2026-07-09 SWA4842 - Jul 9, 00:50 UTCJul 9, 01:55 UTC1h 5m
2026-07-09 SWA4842 SAN → OAK Jul 9, 00:49 UTCJul 9, 01:50 UTC1h 1m
2026-07-08 SWA4486 - Jul 8, 20:55 UTCJul 8, 23:35 UTC2h 40m
2026-07-08 SWA4486 HOU → SAN Jul 8, 20:53 UTCJul 8, 23:33 UTC2h 41m
2026-07-08 SWA709 - Jul 8, 17:40 UTCJul 8, 19:40 UTC2h 0m
2026-07-08 SWA3682 PHX → MDW Jul 8, 13:25 UTCJul 8, 16:30 UTC3h 5m
2026-07-08 SWA3651 - Jul 8, 02:25 UTCJul 8, 03:55 UTC1h 30m
2026-07-07 SWA3334 PHX → SFO Jul 7, 23:50 UTCJul 8, 01:25 UTC1h 35m

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 N8724J page for operator, model, and routing details .

Mode-S AC00B1 frequently asked

What is Mode-S code AC00B1?
AC00B1 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8724J.
Where is Mode-S AC00B1 registered?
Mode-S code AC00B1 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 AC00B1 broadcasting right now?
Yes. Mode-S AC00B1 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC00B1, octal 53000261, decimal 11,272,369.
What flights does AC00B1 operate?
Mode-S AC00B1 has broadcast 20 distinct callsigns, including SWA2396, SWA808, SWA2151, SWA665, SWA587.