Apparatus

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sensors Mode-S transponder

AC47B7

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8900L · BOEING 737 MAX 8 · operated by SOUTHWEST AIRLINES CO

Hex
AC47B7
Octal
53043667
Decimal
11,290,551
Country
US
Tail
N8900L
Type
B38M
No current signal · last broadcast Jul 26, 21:40 UTC
Flights observed
744
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:40 UTC

Last known position

Most recent position reported by Mode-S AC47B7.

Country allocation

The ICAO 24-bit address AC47B7 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
SWA3936 - 9 2026-06-26
SWA1578 Southwest Airlines 6 2026-04-27
SWA107 Southwest Airlines 6 2026-04-27
SWA446 Southwest Airlines 5 2026-06-09
SWA2289 Southwest Airlines 5 2026-07-23
SWA945 - 4 2026-07-14
SWA557 Southwest Airlines 4 2026-04-16
SWA3378 - 4 2026-04-13
SWA2745 - 4 2026-07-14
SWA1970 Southwest Airlines 4 2026-05-17
SWA1260 Southwest Airlines 4 2026-06-08
SWA1100 Southwest Airlines 4 2026-05-30
SWA734 - 3 2026-06-22
SWA667 Southwest Airlines 3 2026-05-24
SWA4664 - 3 2026-07-16
SWA4481 - 3 2026-06-24
SWA4474 Southwest Airlines 3 2026-05-02
SWA4311 - 3 2026-07-09
SWA4264 - 3 2026-07-14
SWA4190 Southwest Airlines 3 2026-05-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA1136 PWM → BWI Jul 26, 20:10 UTCJul 26, 21:35 UTC1h 25m
2026-07-26 SWA1249 ONT → SJC Jul 26, 17:25 UTCJul 26, 18:50 UTC1h 25m
2026-07-26 SWA1249 ONT → SJC Jul 26, 13:15 UTCJul 26, 16:20 UTC3h 5m
2026-07-26 SWA3003 BWI → ALB Jul 26, 04:30 UTCJul 26, 05:25 UTC55m
2026-07-26 SWA3003 BWI → ALB Jul 26, 04:26 UTCJul 26, 05:24 UTC58m
2026-07-26 SWA3003 BWI → ALB Jul 26, 00:20 UTCJul 26, 03:25 UTC3h 5m
2026-07-25 SWA4475 TPA → ATL Jul 25, 22:05 UTCJul 25, 23:20 UTC1h 15m
2026-07-25 SWA4475 TPA → ATL Jul 25, 22:00 UTCJul 25, 23:05 UTC1h 5m
2026-07-25 SWA1059 SFO → PHX Jul 25, 14:20 UTCJul 25, 20:50 UTC6h 30m
2026-07-25 SWA1059 SFO → PHX Jul 25, 11:45 UTCJul 25, 12:45 UTC1h 0m
2026-07-25 SWA580 LAX → SFO Jul 25, 04:25 UTCJul 25, 05:05 UTC40m
2026-07-25 SWA1488 SJC → PHX Jul 25, 01:10 UTCJul 25, 03:15 UTC2h 5m
2026-07-24 SWA3147 LGB → SJC Jul 24, 22:05 UTCJul 25, 00:00 UTC1h 55m
2026-07-24 SWA2846 SYR → BWI Jul 24, 17:30 UTCJul 24, 21:00 UTC3h 30m
2026-07-24 SWA2846 SYR → BWI Jul 24, 17:25 UTCJul 24, 20:55 UTC3h 30m
2026-07-24 SWA224 SAN → SJC Jul 24, 14:50 UTCJul 24, 16:15 UTC1h 25m
2026-07-24 SWA4969 FLL → DCA Jul 24, 11:30 UTCJul 24, 13:00 UTC1h 30m
2026-07-24 SWA497 OAK → PSP Jul 24, 02:05 UTCJul 24, 03:25 UTC1h 20m
2026-07-24 SWA497 OAK → PSP Jul 24, 02:03 UTCJul 24, 03:19 UTC1h 16m
2026-07-23 SWA4193 TPA → STL Jul 23, 22:50 UTCJul 23, 23:45 UTC55m
2026-07-23 SWA4193 TPA → STL Jul 23, 22:47 UTCJul 24, 00:33 UTC1h 46m
2026-07-23 SWA4371 MHT → BWI Jul 23, 20:05 UTCJul 23, 21:50 UTC1h 45m
2026-07-23 SWA1151 COS → DAL Jul 23, 17:25 UTCJul 23, 18:35 UTC1h 10m
2026-07-23 SWA1151 COS → DAL Jul 23, 17:22 UTCJul 23, 18:31 UTC1h 9m
2026-07-23 SWA4571 MSP → MDW Jul 23, 15:20 UTCJul 23, 16:20 UTC1h 0m
2026-07-23 SWA2447 BWI → LAS Jul 23, 11:54 UTCJul 23, 13:45 UTC1h 51m
2026-07-23 SWA2447 BWI → LAS Jul 23, 11:55 UTCJul 23, 13:50 UTC1h 55m
2026-07-23 SWA2289 ISP → BWI Jul 23, 01:20 UTCJul 23, 02:45 UTC1h 25m
2026-07-23 SWA2289 ISP → BWI Jul 23, 01:16 UTCJul 23, 02:47 UTC1h 31m
2026-07-22 SWA2289 ISP → BWI Jul 22, 23:20 UTCJul 23, 00:00 UTC40m
2026-07-22 SWA3880 SAT → BWI Jul 22, 20:15 UTCJul 22, 22:15 UTC2h 0m
2026-07-22 SWA3880 SAT → BWI Jul 22, 20:12 UTCJul 22, 22:14 UTC2h 2m
2026-07-22 SWA677 PHL → STL Jul 22, 17:40 UTCJul 22, 19:15 UTC1h 35m
2026-07-22 SWA4492 - Jul 22, 12:40 UTCJul 22, 16:15 UTC3h 35m
2026-07-22 SWA207 PHX → DAL Jul 22, 03:25 UTCJul 22, 05:25 UTC2h 0m
2026-07-22 SWA207 PHX → DAL Jul 22, 00:25 UTCJul 22, 01:50 UTC1h 25m
2026-07-21 SWA681 - Jul 21, 21:15 UTCJul 21, 22:40 UTC1h 25m
2026-07-21 SWA403 - Jul 21, 17:55 UTCJul 21, 20:05 UTC2h 10m
2026-07-21 SWA403 SLC → PHX Jul 21, 15:35 UTCJul 21, 16:45 UTC1h 10m
2026-07-21 SWA3339 - Jul 21, 13:20 UTCJul 21, 14:40 UTC1h 20m
2026-07-21 SWA3070 BWI → ATL Jul 21, 03:55 UTCJul 21, 05:50 UTC1h 55m
2026-07-21 SWA3070 BWI → ATL Jul 21, 03:51 UTCJul 21, 05:47 UTC1h 57m
2026-07-21 SWA3853 MSY → LAS Jul 21, 02:05 UTCJul 21, 03:00 UTC55m
2026-07-20 SWA901 - Jul 20, 22:45 UTCJul 21, 01:15 UTC2h 29m
2026-07-20 SWA867 BLI → LAS Jul 20, 18:35 UTCJul 20, 21:20 UTC2h 45m
2026-07-20 SWA2383 SAN → OAK Jul 20, 12:20 UTCJul 20, 17:00 UTC4h 40m
2026-07-20 SWA2383 SAN → OAK Jul 20, 12:18 UTCJul 20, 17:00 UTC4h 42m
2026-07-20 SWA980 - Jul 20, 01:45 UTCJul 20, 06:10 UTC4h 25m
2026-07-20 SWA980 BWI → LAX Jul 20, 01:41 UTCJul 20, 06:09 UTC4h 28m
2026-07-19 SWA1693 ABQ → HOU Jul 19, 23:55 UTCJul 20, 00:20 UTC25m

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 N8900L page for operator, model, and routing details .

Mode-S AC47B7 frequently asked

What is Mode-S code AC47B7?
AC47B7 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8900L.
Where is Mode-S AC47B7 registered?
Mode-S code AC47B7 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 AC47B7 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC47B7, octal 53043667, decimal 11,290,551.
What flights does AC47B7 operate?
Mode-S AC47B7 has broadcast 20 distinct callsigns, including SWA3936, SWA1578, SWA107, SWA446, SWA2289.