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 Jul 26, 22:30 UTC
Flights observed
722
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:30 UTC

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
SWA1898 Southwest Airlines 4 2026-07-23
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
SWA4159 Southwest Airlines 3 2026-07-19
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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA2511 OMA → LAS Jul 26, 22:10 UTCJul 26, 22:30 UTC20m
2026-07-26 SWA2697 OAK → LAS Jul 26, 18:50 UTCJul 26, 20:45 UTC1h 55m
2026-07-25 SWA4025 IND → LAS Jul 25, 01:45 UTCJul 25, 03:25 UTC1h 40m
2026-07-24 SWA4980 ORD → BNA Jul 24, 21:55 UTCJul 25, 00:05 UTC2h 10m
2026-07-24 SWA4980 ORD → BNA Jul 24, 21:51 UTCJul 25, 00:02 UTC2h 11m
2026-07-24 SWA2074 OAK → BUR Jul 24, 20:15 UTCJul 24, 20:55 UTC40m
2026-07-24 SWA4414 MCO → PVD Jul 24, 17:50 UTCJul 24, 18:55 UTC1h 5m
2026-07-24 SWA4128 PHX → SFO Jul 24, 16:00 UTCJul 24, 16:45 UTC45m
2026-07-24 SWA4128 PHX → SFO Jul 24, 12:15 UTCJul 24, 15:00 UTC2h 45m
2026-07-24 SWA980 PHX → MDW Jul 24, 01:00 UTCJul 24, 05:55 UTC4h 55m
2026-07-23 SWA1898 OAK → HOU Jul 23, 22:30 UTCJul 23, 23:50 UTC1h 20m
2026-07-23 SWA1898 OAK → HOU Jul 23, 17:00 UTCJul 23, 20:35 UTC3h 35m
2026-07-23 SWA865 BOS → BNA Jul 23, 12:25 UTCJul 23, 15:15 UTC2h 50m
2026-07-23 SWA4417 MDW → BOS Jul 23, 10:20 UTCJul 23, 11:15 UTC55m
2026-07-23 SWA2227 DCA → AUS Jul 23, 01:05 UTCJul 23, 04:45 UTC3h 40m
2026-07-22 SWA2795 OAK → BLI Jul 22, 20:20 UTCJul 22, 23:40 UTC3h 20m
2026-07-22 SWA2795 OAK → BLI Jul 22, 20:15 UTCJul 22, 23:32 UTC3h 18m
2026-07-22 SWA3469 BNA → BOS Jul 22, 16:25 UTCJul 22, 19:00 UTC2h 35m
2026-07-22 SWA3469 BNA → BOS Jul 22, 16:23 UTCJul 22, 18:56 UTC2h 34m
2026-07-22 SWA3481 MDW → DEN Jul 22, 12:55 UTCJul 22, 15:15 UTC2h 20m
2026-07-22 SWA1008 SAN → DAL Jul 22, 11:10 UTCJul 22, 11:40 UTC30m
2026-07-21 SWA1767 MDW → OAK Jul 21, 23:50 UTCJul 22, 02:40 UTC2h 50m
2026-07-21 SWA1767 MDW → OAK Jul 21, 23:46 UTCJul 22, 02:29 UTC2h 44m
2026-07-21 SWA2002 PDX → SJC Jul 21, 20:05 UTCJul 21, 22:45 UTC2h 40m
2026-07-21 SWA2555 TPA → MSY Jul 21, 16:50 UTCJul 21, 18:25 UTC1h 35m
2026-07-21 SWA2555 TPA → MSY Jul 21, 16:45 UTCJul 21, 18:28 UTC1h 43m
2026-07-21 SWA3114 BNA → BDL Jul 21, 14:30 UTCJul 21, 15:40 UTC1h 10m
2026-07-21 SWA436 BWI → ATL Jul 21, 10:45 UTCJul 21, 13:00 UTC2h 15m
2026-07-21 SWA1981 AUS → SLC Jul 21, 02:00 UTCJul 21, 04:15 UTC2h 15m
2026-07-20 SWA4024 ORD → PHX Jul 20, 22:30 UTCJul 21, 00:25 UTC1h 55m
2026-07-20 SWA4024 ORD → PHX Jul 20, 19:40 UTCJul 20, 21:20 UTC1h 40m
2026-07-20 SWA2204 LAS → BWI Jul 20, 14:10 UTCJul 20, 18:20 UTC4h 10m
2026-07-20 SWA1173 BWI → LGA Jul 20, 05:55 UTCJul 20, 07:15 UTC1h 20m
2026-07-20 SWA1305 ATL → MKE Jul 20, 03:25 UTCJul 20, 04:55 UTC1h 30m
2026-07-20 SWA1305 ATL → MKE Jul 20, 01:10 UTCJul 20, 01:50 UTC40m
2026-07-19 SWA4302 - Jul 19, 22:35 UTCJul 20, 00:00 UTC1h 25m
2026-07-19 SWA120 MCI → BWI Jul 19, 20:25 UTCJul 19, 21:20 UTC55m
2026-07-19 SWA2757 - Jul 19, 17:00 UTCJul 19, 18:20 UTC1h 20m
2026-07-19 SWA2664 DEN → SAT Jul 19, 14:10 UTCJul 19, 15:55 UTC1h 45m
2026-07-19 SWA1769 - Jul 19, 11:20 UTCJul 19, 12:45 UTC1h 25m
2026-07-19 SWA2940 DEN → DSM Jul 19, 06:25 UTCJul 19, 07:45 UTC1h 20m
2026-07-19 SWA4159 SJC → LAS Jul 19, 02:55 UTCJul 19, 05:20 UTC2h 25m
2026-07-19 SWA4159 SJC → LAS Jul 19, 02:52 UTCJul 19, 05:17 UTC2h 26m
2026-07-19 SWA4159 SJC → LAS Jul 19, 00:55 UTCJul 19, 02:00 UTC1h 5m
2026-07-18 SWA1853 - Jul 18, 15:50 UTCJul 18, 17:55 UTC2h 5m
2026-07-18 SWA1853 FLL → BWI Jul 18, 15:48 UTCJul 18, 17:47 UTC1h 59m
2026-07-18 SWA945 SAN → OAK Jul 18, 12:50 UTCJul 18, 14:50 UTC2h 0m
2026-07-18 SWA4680 ROC → BWI Jul 18, 10:10 UTCJul 18, 11:05 UTC55m
2026-07-18 SWA4680 ROC → BWI Jul 18, 10:11 UTCJul 18, 11:00 UTC49m
2026-07-18 SWA1081 - Jul 18, 04:55 UTCJul 18, 05:40 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 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 Jul 26, 22:30 UTC.
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, SWA1898.