Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AB5F1B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8315C · BOEING 737-800 · operated by SOUTHWEST AIRLINES CO

Hex
AB5F1B
Octal
52657433
Decimal
11,231,003
Country
US
Tail
N8315C
Type
B738
No current signal · last broadcast Jul 26, 22:40 UTC
Flights observed
720
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:40 UTC

Last known position

Most recent position reported by Mode-S AB5F1B.

Country allocation

The ICAO 24-bit address AB5F1B 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
SWA3064 Southwest Airlines 7 2026-05-23
SWA2449 Southwest Airlines 7 2026-05-05
SWA4045 Southwest Airlines 6 2026-07-22
SWA3727 - 6 2026-07-04
SWA193 Southwest Airlines 5 2026-07-21
SWA1351 Southwest Airlines 5 2026-07-22
SWA4286 Southwest Airlines 4 2026-04-20
SWA3847 - 4 2026-06-23
SWA3795 Southwest Airlines 4 2026-04-17
SWA328 Southwest Airlines 4 2026-05-14
SWA317 Southwest Airlines 4 2026-05-14
SWA2666 - 4 2026-06-19
SWA2304 Southwest Airlines 4 2026-05-14
SWA2126 - 4 2026-07-13
SWA2026 Southwest Airlines 4 2026-06-02
SWA1905 Southwest Airlines 4 2026-04-18
SWA1861 - 4 2026-06-30
SWA1419 Southwest Airlines 4 2026-05-23
SWA1412 - 4 2026-07-19
SWA1337 Southwest Airlines 4 2026-05-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA2555 TPA → MSY Jul 26, 21:05 UTCJul 26, 22:40 UTC1h 35m
2026-07-26 SWA145 MDW → PHX Jul 26, 16:25 UTCJul 26, 19:10 UTC2h 45m
2026-07-26 SWA145 MDW → PHX Jul 26, 16:21 UTCJul 26, 19:10 UTC2h 49m
2026-07-26 SWA1605 BWI → CUN Jul 26, 11:40 UTCJul 26, 14:35 UTC2h 55m
2026-07-25 SWA2145 BUR → LAS Jul 25, 21:40 UTCJul 25, 22:40 UTC1h 0m
2026-07-25 SWA2145 BUR → LAS Jul 25, 21:39 UTCJul 25, 22:38 UTC59m
2026-07-25 SWA4126 LAS → OAK Jul 25, 20:10 UTCJul 25, 20:55 UTC45m
2026-07-25 SWA4126 LAS → OAK Jul 25, 20:09 UTCJul 25, 20:54 UTC45m
2026-07-25 SWA3901 DCA → OKC Jul 25, 18:30 UTCJul 25, 19:25 UTC55m
2026-07-25 SWA3901 DCA → OKC Jul 25, 18:25 UTCJul 25, 19:16 UTC51m
2026-07-25 SWA2085 ONT → OAK Jul 25, 14:25 UTCJul 25, 17:15 UTC2h 50m
2026-07-25 SWA1970 PDX → DEN Jul 25, 10:45 UTCJul 25, 12:40 UTC1h 55m
2026-07-25 SWA1970 PDX → DEN Jul 25, 10:41 UTCJul 25, 12:41 UTC2h 0m
2026-07-25 SWA2244 SJC → SAN Jul 25, 03:55 UTCJul 25, 06:30 UTC2h 35m
2026-07-25 SWA2244 SJC → SAN Jul 25, 03:48 UTCJul 25, 06:31 UTC2h 44m
2026-07-24 SWA2648 DEN → IND Jul 24, 21:45 UTCJul 25, 01:45 UTC4h 0m
2026-07-24 SWA4162 CMH → MDW Jul 24, 15:50 UTCJul 24, 20:20 UTC4h 30m
2026-07-24 SWA4162 CMH → MDW Jul 24, 15:48 UTCJul 24, 20:15 UTC4h 27m
2026-07-24 SWA153 MAF → DAL Jul 24, 13:10 UTCJul 24, 14:35 UTC1h 25m
2026-07-24 SWA153 MAF → DAL Jul 24, 13:07 UTCJul 24, 14:29 UTC1h 22m
2026-07-24 SWA4839 IND → FLL Jul 24, 05:55 UTCJul 24, 07:20 UTC1h 25m
2026-07-23 SWA749 BNA → ORD Jul 23, 22:25 UTCJul 24, 04:05 UTC5h 40m
2026-07-23 SWA749 BNA → ORD Jul 23, 22:25 UTCJul 24, 04:05 UTC5h 40m
2026-07-23 SWA737 BNA → LGA Jul 23, 19:50 UTCJul 23, 20:55 UTC1h 5m
2026-07-23 SWA4388 DCA → DAL Jul 23, 17:20 UTCJul 23, 18:35 UTC1h 15m
2026-07-23 SWA4388 DCA → DAL Jul 23, 17:19 UTCJul 23, 18:33 UTC1h 14m
2026-07-23 SWA4655 LAS → SJC Jul 23, 14:25 UTCJul 23, 16:25 UTC2h 0m
2026-07-23 SWA440 DAL → MCI Jul 23, 12:05 UTCJul 23, 13:15 UTC1h 10m
2026-07-23 SWA440 DAL → MCI Jul 23, 12:00 UTCJul 23, 13:08 UTC1h 8m
2026-07-23 SWA103 PHL → MDW Jul 23, 00:10 UTCJul 23, 03:20 UTC3h 10m
2026-07-22 SWA3575 SBA → OAK Jul 22, 20:45 UTCJul 22, 23:00 UTC2h 15m
2026-07-22 SWA4045 TPA → MSY Jul 22, 17:30 UTCJul 22, 19:40 UTC2h 10m
2026-07-22 SWA4045 TPA → MSY Jul 22, 17:29 UTCJul 22, 19:44 UTC2h 15m
2026-07-22 SWA591 DEN → ONT Jul 22, 15:05 UTCJul 22, 16:10 UTC1h 5m
2026-07-22 SWA3931 - Jul 22, 12:35 UTCJul 22, 14:00 UTC1h 25m
2026-07-22 SWA3931 BWI → ATL Jul 22, 12:34 UTCJul 22, 13:55 UTC1h 22m
2026-07-22 SWA1351 ATL → MDW Jul 22, 01:20 UTCJul 22, 04:20 UTC3h 0m
2026-07-22 SWA1351 ATL → MDW Jul 22, 01:18 UTCJul 22, 04:19 UTC3h 1m
2026-07-21 SWA1351 ATL → MDW Jul 21, 21:35 UTCJul 21, 23:40 UTC2h 5m
2026-07-21 SWA4036 DAL → ONT Jul 21, 18:20 UTCJul 21, 20:00 UTC1h 40m
2026-07-21 SWA4036 DAL → ONT Jul 21, 18:19 UTCJul 21, 19:59 UTC1h 40m
2026-07-21 SWA4033 LAS → DEN Jul 21, 15:00 UTCJul 21, 17:15 UTC2h 15m
2026-07-21 SWA1415 MCO → BWI Jul 21, 11:35 UTCJul 21, 13:40 UTC2h 5m
2026-07-21 SWA1415 MCO → BWI Jul 21, 11:32 UTCJul 21, 13:35 UTC2h 3m
2026-07-21 SWA193 MKE → BWI Jul 21, 02:53 UTCJul 21, 05:21 UTC2h 28m
2026-07-21 SWA193 MKE → BWI Jul 21, 02:55 UTCJul 21, 05:25 UTC2h 30m
2026-07-21 SWA193 MKE → BWI Jul 21, 00:45 UTCJul 21, 01:45 UTC1h 0m
2026-07-20 SWA193 MKE → BWI Jul 20, 18:40 UTCJul 20, 23:20 UTC4h 40m
2026-07-20 SWA193 MKE → BWI Jul 20, 15:30 UTCJul 20, 17:20 UTC1h 50m
2026-07-20 SWA565 - Jul 20, 12:05 UTCJul 20, 13:30 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 N8315C page for operator, model, and routing details .

Mode-S AB5F1B frequently asked

What is Mode-S code AB5F1B?
AB5F1B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8315C.
Where is Mode-S AB5F1B registered?
Mode-S code AB5F1B 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 AB5F1B broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB5F1B, octal 52657433, decimal 11,231,003.
What flights does AB5F1B operate?
Mode-S AB5F1B has broadcast 20 distinct callsigns, including SWA3064, SWA2449, SWA4045, SWA3727, SWA193.