Apparatus

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sensors Mode-S transponder

AB018A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N808WA · MCDONNELL-DOUGLAS MD-83 · operated by CARIBBEAN SUN AIRLINES INC

Hex
AB018A
Octal
52600612
Decimal
11,207,050
Country
US
Tail
N808WA
Type
MD83
No current signal · last broadcast 6d ago
Flights observed
177
Distinct callsigns
20
Country
US
Last broadcast
6d ago

Last known position

Most recent position reported by Mode-S AB018A.

Country allocation

The ICAO 24-bit address AB018A 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
WAL513 World Atlantic Airlines 13 2026-06-28
WAL512 - 13 2026-06-28
WAL297 World Atlantic Airlines 12 2026-06-20
WAL503 World Atlantic Airlines 11 2026-06-10
WAL502 World Atlantic Airlines 10 2026-06-10
WAL296 World Atlantic Airlines 10 2026-06-20
WAL281 - 10 2026-06-20
WAL250 - 10 2026-07-03
WAL251 - 9 2026-07-03
WAL291 - 8 2026-07-03
WAL290 - 8 2026-07-03
WAL271 - 8 2026-07-10
WAL270 - 6 2026-07-10
WAL260 World Atlantic Airlines 6 2026-06-18
WAL293 - 5 2026-06-18
WAL280 World Atlantic Airlines 5 2026-06-06
WAL261 World Atlantic Airlines 5 2026-06-18
WAL253 - 5 2026-07-11
WAL252 - 5 2026-07-11
WAL294 World Atlantic Airlines 4 2026-06-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-11 WAL253 - Jul 11, 18:20 UTCJul 11, 18:50 UTC30m
2026-07-11 WAL252 - Jul 11, 15:55 UTCJul 11, 16:25 UTC30m
2026-07-10 WAL603 - Jul 10, 17:45 UTCJul 10, 18:55 UTC1h 10m
2026-07-10 WAL271 - Jul 10, 13:45 UTCJul 10, 14:05 UTC20m
2026-07-10 WAL270 - Jul 10, 11:15 UTCJul 10, 11:40 UTC25m
2026-07-09 WAL523 - Jul 9, 13:25 UTCJul 9, 13:50 UTC25m
2026-07-09 WAL522 - Jul 9, 10:55 UTCJul 9, 11:15 UTC20m
2026-07-04 WAL253 - Jul 4, 19:00 UTCJul 4, 19:40 UTC40m
2026-07-04 WAL252 - Jul 4, 16:45 UTCJul 4, 17:15 UTC30m
2026-07-03 WAL251 - Jul 3, 20:05 UTCJul 3, 20:35 UTC30m
2026-07-03 WAL290 - Jul 3, 16:55 UTCJul 3, 17:35 UTC40m
2026-07-03 WAL291 - Jul 3, 13:55 UTCJul 3, 14:40 UTC45m
2026-07-03 WAL250 - Jul 3, 11:35 UTCJul 3, 12:05 UTC30m
2026-07-02 WAL523 - Jul 2, 14:00 UTCJul 2, 14:30 UTC30m
2026-07-02 WAL522 - Jul 2, 11:35 UTCJul 2, 11:55 UTC20m
2026-06-28 WAL513 SNU → MIA Jun 28, 13:14 UTCJun 28, 13:45 UTC30m
2026-06-28 WAL512 - Jun 28, 11:14 UTCJun 28, 11:39 UTC25m
2026-06-27 WAL253 - Jun 27, 17:59 UTCJun 27, 18:29 UTC30m
2026-06-27 WAL252 - Jun 27, 15:55 UTCJun 27, 16:30 UTC35m
2026-06-26 WAL501 - Jun 26, 15:54 UTCJun 26, 21:04 UTC5h 10m
2026-06-22 WAL271 - Jun 22, 11:19 UTCJun 22, 14:19 UTC3h 0m
2026-06-21 WAL513 SNU → MIA Jun 21, 13:29 UTCJun 21, 13:59 UTC30m
2026-06-21 WAL512 - Jun 21, 11:40 UTCJun 21, 12:04 UTC25m
2026-06-20 WAL281 - Jun 20, 22:45 UTCJun 20, 23:10 UTC25m
2026-06-20 WAL296 TPA → HOG Jun 20, 19:44 UTCJun 20, 20:34 UTC50m
2026-06-20 WAL297 HOG → TPA Jun 20, 13:29 UTCJun 20, 16:59 UTC3h 30m
2026-06-19 WAL251 - Jun 19, 20:14 UTCJun 19, 20:44 UTC30m
2026-06-19 WAL290 - Jun 19, 17:39 UTCJun 19, 18:20 UTC40m
2026-06-19 WAL291 - Jun 19, 14:39 UTCJun 19, 15:24 UTC45m
2026-06-19 WAL250 - Jun 19, 11:14 UTCJun 19, 11:45 UTC30m
2026-06-18 WAL261 SNU → MIA Jun 18, 18:45 UTCJun 18, 19:15 UTC30m
2026-06-18 WAL294 TPA → SNU Jun 18, 16:30 UTCJun 18, 17:15 UTC45m
2026-06-18 WAL293 - Jun 18, 13:25 UTCJun 18, 14:15 UTC50m
2026-06-18 WAL260 MIA → SNU Jun 18, 11:15 UTCJun 18, 11:35 UTC20m
2026-06-15 WAL513 SNU → MIA Jun 15, 14:10 UTCJun 15, 14:30 UTC20m
2026-06-15 WAL513 SNU → MIA Jun 15, 11:39 UTCJun 15, 12:05 UTC25m
2026-06-14 WAL513 SNU → MIA Jun 14, 13:25 UTCJun 14, 13:55 UTC30m
2026-06-14 WAL512 MIA → SNU Jun 14, 11:30 UTCJun 14, 11:55 UTC25m
2026-06-13 WAL281 HOG → MIA Jun 13, 20:10 UTCJun 13, 20:35 UTC25m
2026-06-13 WAL296 TPA → HOG Jun 13, 16:55 UTCJun 13, 17:40 UTC45m
2026-06-13 WAL297 HOG → TPA Jun 13, 11:20 UTCJun 13, 14:40 UTC3h 20m
2026-06-12 WAL251 HAV → MIA Jun 12, 18:35 UTCJun 12, 19:05 UTC30m
2026-06-12 WAL290 TPA → HAV Jun 12, 16:15 UTCJun 12, 16:55 UTC40m
2026-06-12 WAL291 HAV → TPA Jun 12, 13:25 UTCJun 12, 14:10 UTC45m
2026-06-12 WAL250 CAE → ILG Jun 12, 11:05 UTCJun 12, 11:40 UTC35m
2026-06-11 WAL261 SNU → MIA Jun 11, 17:50 UTCJun 11, 18:20 UTC30m
2026-06-11 WAL294 TPA → SNU Jun 11, 15:55 UTCJun 11, 16:35 UTC40m
2026-06-11 WAL293 - Jun 11, 13:15 UTCJun 11, 14:15 UTC1h 0m
2026-06-11 WAL260 MIA → SNU Jun 11, 11:30 UTCJun 11, 11:55 UTC25m
2026-06-10 WAL503 HAV → MIA Jun 10, 13:20 UTCJun 10, 13:50 UTC30m

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 N808WA page for operator, model, and routing details .

Mode-S AB018A frequently asked

What is Mode-S code AB018A?
AB018A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N808WA.
Where is Mode-S AB018A registered?
Mode-S code AB018A 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 AB018A broadcasting right now?
No active broadcast right now. Last signal was 6d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB018A, octal 52600612, decimal 11,207,050.
What flights does AB018A operate?
Mode-S AB018A has broadcast 20 distinct callsigns, including WAL513, WAL512, WAL297, WAL503, WAL502.