Apparatus

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sensors Mode-S transponder

ABAEB2

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8519R · BOEING 737-800 · operated by SOUTHWEST AIRLINES CO

Hex
ABAEB2
Octal
52727262
Decimal
11,251,378
Country
US
Tail
N8519R
Type
B738
No current signal · last broadcast 7h ago
Flights observed
652
Distinct callsigns
20
Country
US
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S ABAEB2.

Country allocation

The ICAO 24-bit address ABAEB2 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
SWA843 Southwest Airlines 7 2026-06-03
SWA1266 Southwest Airlines 6 2026-05-23
SWA2343 - 4 2026-07-07
SWA2094 Southwest Airlines 4 2026-06-12
SWA1463 Southwest Airlines 4 2026-04-23
SWA642 - 3 2026-06-25
SWA578 Southwest Airlines 3 2026-06-12
SWA505 Southwest Airlines 3 2026-06-26
SWA4698 - 3 2026-07-06
SWA4684 - 3 2026-07-11
SWA4432 Southwest Airlines 3 2026-06-04
SWA4071 - 3 2026-06-17
SWA4047 - 3 2026-07-01
SWA3976 Southwest Airlines 3 2026-04-20
SWA3796 - 3 2026-04-13
SWA373 - 3 2026-04-13
SWA3512 - 3 2026-06-22
SWA3241 - 3 2026-06-25
SWA3105 Southwest Airlines 3 2026-06-03
SWA30 Southwest Airlines 3 2026-06-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SWA4401 LGA → DAL Jul 14, 21:10 UTCJul 15, 00:15 UTC3h 4m
2026-07-14 SWA4731 BNA → LGA Jul 14, 18:00 UTCJul 14, 19:50 UTC1h 50m
2026-07-14 SWA4731 BNA → LGA Jul 14, 17:57 UTCJul 14, 19:52 UTC1h 55m
2026-07-14 SWA1275 - Jul 14, 15:30 UTCJul 14, 16:55 UTC1h 25m
2026-07-14 SWA1275 PHX → DAL Jul 14, 12:25 UTCJul 14, 14:25 UTC2h 0m
2026-07-14 SWA4260 LAS → PHX Jul 14, 01:25 UTCJul 14, 06:55 UTC5h 30m
2026-07-13 SWA4143 AUS → LAS Jul 13, 21:40 UTCJul 14, 00:15 UTC2h 35m
2026-07-13 SWA4143 AUS → LAS Jul 13, 21:40 UTCJul 14, 00:11 UTC2h 32m
2026-07-13 SWA1140 - Jul 13, 17:45 UTCJul 13, 20:20 UTC2h 35m
2026-07-13 SWA469 - Jul 13, 15:35 UTCJul 13, 16:35 UTC1h 0m
2026-07-13 SWA3391 - Jul 13, 12:55 UTCJul 13, 14:00 UTC1h 5m
2026-07-13 SWA3391 PNS → BNA Jul 13, 12:52 UTCJul 13, 13:56 UTC1h 4m
2026-07-13 SWA4630 - Jul 13, 01:25 UTCJul 13, 02:25 UTC1h 0m
2026-07-12 SWA1768 - Jul 12, 23:20 UTCJul 12, 23:55 UTC35m
2026-07-12 SWA1768 - Jul 12, 20:05 UTCJul 12, 22:30 UTC2h 25m
2026-07-12 SWA1680 AUS → DEN Jul 12, 16:55 UTCJul 12, 18:40 UTC1h 45m
2026-07-12 SWA4207 - Jul 12, 15:01 UTCJul 12, 15:40 UTC40m
2026-07-12 SWA2022 - Jul 12, 13:01 UTCJul 12, 14:01 UTC1h 0m
2026-07-12 SWA4023 - Jul 12, 10:01 UTCJul 12, 11:50 UTC1h 50m
2026-07-12 SWA2232 DEN → TPA Jul 12, 01:10 UTCJul 12, 04:15 UTC3h 5m
2026-07-11 SWA2161 - Jul 11, 20:55 UTCJul 12, 00:05 UTC3h 10m
2026-07-11 SWA2161 JAX → DEN Jul 11, 20:52 UTCJul 12, 00:00 UTC3h 9m
2026-07-11 SWA4384 DEN → JAX Jul 11, 16:41 UTCJul 11, 19:28 UTC2h 47m
2026-07-11 SWA4384 - Jul 11, 16:45 UTCJul 11, 19:30 UTC2h 45m
2026-07-11 SWA2454 LGA → DEN Jul 11, 11:35 UTCJul 11, 15:10 UTC3h 35m
2026-07-11 SWA2454 LGA → DEN Jul 11, 11:32 UTCJul 11, 15:11 UTC3h 40m
2026-07-11 SWA4684 STL → LGA Jul 11, 02:15 UTCJul 11, 04:15 UTC2h 0m
2026-07-11 SWA4684 STL → LGA Jul 11, 02:13 UTCJul 11, 04:15 UTC2h 3m
2026-07-10 SWA4684 - Jul 10, 22:40 UTCJul 11, 00:15 UTC1h 35m
2026-07-10 SWA553 DEN → AUS Jul 10, 19:50 UTCJul 10, 21:30 UTC1h 40m
2026-07-10 SWA2960 - Jul 10, 16:25 UTCJul 10, 18:30 UTC2h 5m
2026-07-10 SWA2960 MDW → DEN Jul 10, 16:23 UTCJul 10, 18:21 UTC1h 58m
2026-07-10 SWA4776 ABQ → MDW Jul 10, 12:35 UTCJul 10, 14:55 UTC2h 20m
2026-07-10 SWA4776 ABQ → MDW Jul 10, 12:35 UTCJul 10, 14:48 UTC2h 13m
2026-07-10 SWA3485 PHX → ABQ Jul 10, 05:00 UTCJul 10, 05:50 UTC50m
2026-07-10 SWA3485 PHX → ABQ Jul 10, 05:00 UTCJul 10, 05:47 UTC47m
2026-07-10 SWA1885 - Jul 10, 01:50 UTCJul 10, 04:00 UTC2h 10m
2026-07-09 SWA4440 DEN → GEG Jul 9, 23:05 UTCJul 10, 00:55 UTC1h 50m
2026-07-09 SWA4678 - Jul 9, 19:15 UTCJul 9, 21:10 UTC1h 55m
2026-07-09 SWA3940 - Jul 9, 17:25 UTCJul 9, 18:05 UTC40m
2026-07-09 SWA3940 - Jul 9, 15:40 UTCJul 9, 16:30 UTC50m
2026-07-09 SWA4399 - Jul 9, 13:45 UTCJul 9, 14:20 UTC35m
2026-07-09 SWA1218 COS → DAL Jul 9, 11:20 UTCJul 9, 12:45 UTC1h 25m
2026-07-09 SWA1218 COS → DAL Jul 9, 11:19 UTCJul 9, 12:44 UTC1h 25m
2026-07-09 SWA4487 LAS → COS Jul 9, 04:20 UTCJul 9, 05:35 UTC1h 15m
2026-07-09 SWA3325 PDX → LAS Jul 9, 01:35 UTCJul 9, 03:20 UTC1h 45m
2026-07-09 SWA3325 PDX → LAS Jul 9, 01:35 UTCJul 9, 03:18 UTC1h 43m
2026-07-08 SWA4908 - Jul 8, 22:40 UTCJul 9, 00:40 UTC2h 0m
2026-07-08 SWA4111 - Jul 8, 17:55 UTCJul 8, 21:30 UTC3h 35m
2026-07-08 SWA4111 BNA → SAN Jul 8, 17:51 UTCJul 8, 21:28 UTC3h 37m

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 N8519R page for operator, model, and routing details .

Mode-S ABAEB2 frequently asked

What is Mode-S code ABAEB2?
ABAEB2 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8519R.
Where is Mode-S ABAEB2 registered?
Mode-S code ABAEB2 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 ABAEB2 broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABAEB2, octal 52727262, decimal 11,251,378.
What flights does ABAEB2 operate?
Mode-S ABAEB2 has broadcast 20 distinct callsigns, including SWA843, SWA1266, SWA2343, SWA2094, SWA1463.