Apparatus

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sensors Mode-S transponder

AB5B8C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8306H · BOEING 737-800 · operated by SOUTHWEST AIRLINES CO

Hex
AB5B8C
Octal
52655614
Decimal
11,230,092
Country
US
Tail
N8306H
Type
B738
No current signal · last broadcast 9h ago
Flights observed
623
Distinct callsigns
20
Country
US
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S AB5B8C.

Country allocation

The ICAO 24-bit address AB5B8C 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
SWA493 Southwest Airlines 5 2026-06-07
SWA446 - 5 2026-07-07
SWA386 - 5 2026-06-25
SWA3290 Southwest Airlines 5 2026-05-28
SWA2484 - 4 2026-04-13
SWA2211 Southwest Airlines 4 2026-05-12
SWA186 - 4 2026-07-07
SWA888 Southwest Airlines 3 2026-05-16
SWA884 - 3 2026-07-12
SWA837 - 3 2026-06-26
SWA613 Southwest Airlines 3 2026-06-20
SWA553 - 3 2026-07-01
SWA429 Southwest Airlines 3 2026-05-16
SWA4143 - 3 2026-07-12
SWA3525 - 3 2026-07-07
SWA3368 Southwest Airlines 3 2026-05-03
SWA3243 Southwest Airlines 3 2026-04-17
SWA3022 - 3 2026-06-17
SWA302 Southwest Airlines 3 2026-04-18
SWA2722 Southwest Airlines 3 2026-05-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SWA1688 DEN → PIT Jul 14, 02:27 UTCJul 14, 05:15 UTC2h 48m
2026-07-14 SWA1688 - Jul 14, 02:30 UTCJul 14, 05:15 UTC2h 45m
2026-07-13 SWA1145 - Jul 13, 21:55 UTCJul 14, 01:00 UTC3h 5m
2026-07-13 SWA269 - Jul 13, 18:15 UTCJul 13, 20:45 UTC2h 30m
2026-07-13 SWA269 AUS → CHS Jul 13, 18:14 UTCJul 13, 20:43 UTC2h 29m
2026-07-13 SWA1864 LAS → AUS Jul 13, 14:50 UTCJul 13, 17:10 UTC2h 20m
2026-07-13 SWA3281 PHX → LAS Jul 13, 12:50 UTCJul 13, 13:35 UTC45m
2026-07-13 SWA3281 PHX → LAS Jul 13, 12:50 UTCJul 13, 13:32 UTC42m
2026-07-13 SWA3752 LAS → PHX Jul 13, 05:20 UTCJul 13, 06:15 UTC55m
2026-07-13 SWA3752 LAS → PHX Jul 13, 05:16 UTCJul 13, 06:12 UTC56m
2026-07-13 SWA2404 - Jul 13, 02:40 UTCJul 13, 03:25 UTC45m
2026-07-13 SWA2404 LAX → LAS Jul 13, 02:35 UTCJul 13, 03:17 UTC42m
2026-07-12 SWA4143 - Jul 12, 23:30 UTCJul 13, 00:10 UTC40m
2026-07-12 SWA4143 AUS → LAS Jul 12, 19:40 UTCJul 12, 21:55 UTC2h 15m
2026-07-12 SWA884 - Jul 12, 14:40 UTCJul 12, 18:25 UTC3h 45m
2026-07-12 SWA884 BOS → AUS Jul 12, 14:39 UTCJul 12, 18:22 UTC3h 43m
2026-07-12 SWA884 - Jul 12, 12:40 UTCJul 12, 13:35 UTC55m
2026-07-12 SWA4534 - Jul 12, 10:30 UTCJul 12, 11:30 UTC1h 0m
2026-07-12 SWA2193 DEN → DTW Jul 12, 01:46 UTCJul 12, 04:05 UTC2h 19m
2026-07-12 SWA2193 DEN → DTW Jul 12, 01:50 UTCJul 12, 04:05 UTC2h 15m
2026-07-11 SWA2769 - Jul 11, 22:15 UTCJul 12, 00:15 UTC2h 0m
2026-07-11 SWA2657 - Jul 11, 17:40 UTCJul 11, 20:00 UTC2h 20m
2026-07-11 SWA1267 - Jul 11, 14:55 UTCJul 11, 16:40 UTC1h 45m
2026-07-11 SWA1267 - Jul 11, 12:40 UTCJul 11, 13:35 UTC55m
2026-07-11 SWA4504 - Jul 11, 10:35 UTCJul 11, 11:40 UTC1h 5m
2026-07-11 SWA3311 PHX → OMA Jul 11, 06:05 UTCJul 11, 08:15 UTC2h 10m
2026-07-11 SWA3311 PHX → OMA Jul 11, 06:03 UTCJul 11, 08:11 UTC2h 8m
2026-07-11 SWA2681 MCO → PHX Jul 11, 00:45 UTCJul 11, 04:40 UTC3h 55m
2026-07-10 SWA273 MBJ → MCO Jul 10, 19:59 UTCJul 10, 21:46 UTC1h 48m
2026-07-10 SWA273 - Jul 10, 17:05 UTCJul 10, 21:50 UTC4h 45m
2026-07-10 SWA1349 DAL → MCO Jul 10, 12:50 UTCJul 10, 15:05 UTC2h 15m
2026-07-10 SWA1349 DAL → MCO Jul 10, 12:46 UTCJul 10, 14:55 UTC2h 9m
2026-07-09 SWA5071 BNA → DAL Jul 9, 22:30 UTCJul 9, 23:55 UTC1h 25m
2026-07-09 SWA5069 - Jul 9, 20:00 UTCJul 9, 21:05 UTC1h 5m
2026-07-09 SWA5063 - Jul 9, 17:45 UTCJul 9, 18:55 UTC1h 10m
2026-07-09 SWA5062 DAL → MCO Jul 9, 15:15 UTCJul 9, 16:45 UTC1h 30m
2026-07-09 SWA5062 DAL → MCO Jul 9, 15:10 UTCJul 9, 16:34 UTC1h 24m
2026-07-08 SWA1792 - Jul 8, 20:25 UTCJul 8, 21:40 UTC1h 15m
2026-07-08 SWA1792 STL → DAL Jul 8, 20:22 UTCJul 8, 21:37 UTC1h 15m
2026-07-08 SWA2473 LGA → STL Jul 8, 17:15 UTCJul 8, 19:15 UTC2h 0m
2026-07-08 SWA2473 LGA → STL Jul 8, 17:14 UTCJul 8, 19:16 UTC2h 2m
2026-07-08 SWA1592 - Jul 8, 13:25 UTCJul 8, 15:00 UTC1h 35m
2026-07-08 SWA1592 MDW → LGA Jul 8, 13:21 UTCJul 8, 15:03 UTC1h 42m
2026-07-08 SWA2133 IND → MDW Jul 8, 10:50 UTCJul 8, 11:30 UTC40m
2026-07-08 SWA2133 IND → MDW Jul 8, 10:50 UTCJul 8, 11:24 UTC34m
2026-07-07 SWA3497 - Jul 7, 23:00 UTCJul 8, 02:40 UTC3h 40m
2026-07-07 SWA3525 - Jul 7, 20:20 UTCJul 7, 21:25 UTC1h 5m
2026-07-07 SWA186 - Jul 7, 14:15 UTCJul 7, 19:20 UTC5h 5m
2026-07-07 SWA186 ATL → BWI Jul 7, 11:30 UTCJul 7, 12:55 UTC1h 25m
2026-07-07 SWA446 - Jul 7, 00:30 UTCJul 7, 01:15 UTC45m

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 N8306H page for operator, model, and routing details .

Mode-S AB5B8C frequently asked

What is Mode-S code AB5B8C?
AB5B8C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8306H.
Where is Mode-S AB5B8C registered?
Mode-S code AB5B8C 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 AB5B8C broadcasting right now?
No active broadcast right now. Last signal was 9h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB5B8C, octal 52655614, decimal 11,230,092.
What flights does AB5B8C operate?
Mode-S AB5B8C has broadcast 20 distinct callsigns, including SWA493, SWA446, SWA386, SWA3290, SWA2484.