Apparatus

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sensors Mode-S transponder

ABB8EA

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8542Z · BOEING 737-800 · operated by SOUTHWEST AIRLINES CO

Hex
ABB8EA
Octal
52734352
Decimal
11,253,994
Country
US
Tail
N8542Z
Type
B738
No current signal · last broadcast Jun 10, 04:25 UTC
Flights observed
403
Distinct callsigns
20
Country
US
Last broadcast
Jun 10, 04:25 UTC

Last known position

Most recent position reported by Mode-S ABB8EA.

Country allocation

The ICAO 24-bit address ABB8EA 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
SWA410 Southwest Airlines 4 2026-04-13
SWA3021 Southwest Airlines 4 2026-04-28
SWA2303 Southwest Airlines 4 2026-05-22
SWA2118 Southwest Airlines 4 2026-05-23
SWA1882 Southwest Airlines 4 2026-04-15
SWA769 Southwest Airlines 3 2026-04-16
SWA3831 - 3 2026-04-13
SWA3648 Southwest Airlines 3 2026-04-15
SWA3409 Southwest Airlines 3 2026-05-10
SWA3368 Southwest Airlines 3 2026-05-27
SWA3251 - 3 2026-04-17
SWA3109 Southwest Airlines 3 2026-04-27
SWA2874 Southwest Airlines 3 2026-04-26
SWA2813 - 3 2026-04-13
SWA2354 Southwest Airlines 3 2026-04-24
SWA2145 Southwest Airlines 3 2026-04-15
SWA2026 Southwest Airlines 3 2026-04-23
SWA1652 Southwest Airlines 3 2026-05-03
SWA1501 Southwest Airlines 3 2026-05-28
SWA1325 - 3 2026-04-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-10 SWA2663 MDW → ALB Jun 10, 02:35 UTCJun 10, 04:25 UTC1h 50m
2026-06-10 SWA2663 MDW → ALB Jun 10, 02:32 UTCJun 10, 04:23 UTC1h 51m
2026-06-10 SWA1782 ISP → BNA Jun 10, 00:35 UTCJun 10, 01:20 UTC45m
2026-06-09 SWA1782 ISP → BNA Jun 9, 20:05 UTCJun 9, 23:30 UTC3h 25m
2026-06-09 SWA4532 TPA → SAT Jun 9, 16:45 UTCJun 9, 18:50 UTC2h 5m
2026-06-09 SWA4215 SJC → BUR Jun 9, 12:15 UTCJun 9, 14:50 UTC2h 35m
2026-06-09 SWA1246 IAH → MSY Jun 9, 09:45 UTCJun 9, 10:40 UTC55m
2026-06-09 SWA4435 ORD → FLL Jun 9, 02:55 UTCJun 9, 04:05 UTC1h 10m
2026-06-08 SWA3385 ALB → DEN Jun 8, 23:10 UTCJun 9, 02:00 UTC2h 50m
2026-06-08 SWA451 SNA → SJC Jun 8, 20:10 UTCJun 8, 22:00 UTC1h 50m
2026-06-08 SWA451 SNA → SJC Jun 8, 20:06 UTCJun 8, 21:59 UTC1h 53m
2026-06-08 SWA1485 MDW → MHT Jun 8, 16:20 UTCJun 8, 18:40 UTC2h 20m
2026-06-08 SWA4059 SAN → SMF Jun 8, 13:25 UTCJun 8, 14:50 UTC1h 25m
2026-06-08 SWA2948 SEA → OAK Jun 8, 07:35 UTCJun 8, 08:30 UTC55m
2026-06-08 SWA2948 SEA → OAK Jun 8, 07:32 UTCJun 8, 08:29 UTC57m
2026-06-08 SWA2109 MDW → MIA Jun 8, 04:00 UTCJun 8, 05:55 UTC1h 55m
2026-06-07 SWA2109 MDW → MIA Jun 7, 22:40 UTCJun 8, 02:25 UTC3h 45m
2026-06-07 SWA4917 CLT → DEN Jun 7, 19:05 UTCJun 7, 21:30 UTC2h 25m
2026-06-07 SWA4484 SNA → OAK Jun 7, 15:30 UTCJun 7, 17:35 UTC2h 5m
2026-06-07 SWA4484 SNA → OAK Jun 7, 15:25 UTCJun 7, 17:37 UTC2h 13m
2026-06-07 SWA1337 SJC → GEG Jun 7, 13:20 UTCJun 7, 14:15 UTC55m
2026-06-07 SWA3649 SJC → PDX Jun 7, 07:10 UTCJun 7, 10:50 UTC3h 40m
2026-06-07 SWA4303 SMF → BNA Jun 7, 03:10 UTCJun 7, 05:30 UTC2h 20m
2026-06-07 SWA4303 SMF → BNA Jun 7, 03:05 UTCJun 7, 05:21 UTC2h 16m
2026-06-07 SWA2829 MCI → OAK Jun 7, 00:25 UTCJun 7, 01:50 UTC1h 25m
2026-06-07 SWA2829 MCI → OAK Jun 7, 00:22 UTCJun 7, 01:42 UTC1h 20m
2026-06-06 SWA4635 MDW → ALB Jun 6, 21:39 UTCJun 6, 22:51 UTC1h 12m
2026-06-06 SWA4635 MDW → ALB Jun 6, 21:40 UTCJun 6, 22:55 UTC1h 15m
2026-06-06 SWA1346 LAX → OAK Jun 6, 19:14 UTCJun 6, 20:39 UTC1h 25m
2026-06-06 SWA1346 LAX → OAK Jun 6, 19:10 UTCJun 6, 20:38 UTC1h 28m
2026-06-06 SWA4759 STL → ECP Jun 6, 16:55 UTCJun 6, 18:14 UTC1h 20m
2026-06-06 SWA265 LAS → OKC Jun 6, 14:06 UTCJun 6, 15:40 UTC1h 34m
2026-06-06 SWA265 LAS → OKC Jun 6, 14:09 UTCJun 6, 15:44 UTC1h 35m
2026-06-06 SWA1261 IND → ATL Jun 6, 11:05 UTCJun 6, 12:40 UTC1h 35m
2026-06-06 SWA2221 BWI → ALB Jun 6, 02:20 UTCJun 6, 04:45 UTC2h 25m
2026-06-06 SWA2221 BWI → ALB Jun 6, 02:20 UTCJun 6, 04:40 UTC2h 21m
2026-06-05 SWA4240 SJC → SAN Jun 5, 22:55 UTCJun 6, 01:25 UTC2h 30m
2026-06-05 SWA4625 BUR → SJC Jun 5, 20:35 UTCJun 5, 21:45 UTC1h 10m
2026-06-05 SWA3245 OAK → DAL Jun 5, 17:50 UTCJun 5, 19:15 UTC1h 25m
2026-06-05 SWA3245 OAK → DAL Jun 5, 17:49 UTCJun 5, 19:08 UTC1h 19m
2026-06-05 SWA1498 SAN → SJC Jun 5, 13:40 UTCJun 5, 16:45 UTC3h 5m
2026-06-05 SWA1498 SAN → SJC Jun 5, 13:39 UTCJun 5, 16:45 UTC3h 6m
2026-06-05 SWA2942 BDL → MDW Jun 5, 10:25 UTCJun 5, 12:30 UTC2h 5m
2026-06-05 SWA2942 BDL → MDW Jun 5, 10:23 UTCJun 5, 12:29 UTC2h 7m
2026-06-05 SWA987 MDW → PHL Jun 5, 00:05 UTCJun 5, 02:25 UTC2h 20m
2026-06-05 SWA987 MDW → PHL Jun 5, 00:02 UTCJun 5, 02:25 UTC2h 23m
2026-06-04 SWA3439 SAT → BWI Jun 4, 20:55 UTCJun 4, 22:40 UTC1h 45m
2026-06-04 SWA3379 DEN → BDL Jun 4, 17:55 UTCJun 4, 19:45 UTC1h 50m
2026-06-04 SWA1171 MDW → BOS Jun 4, 14:50 UTCJun 4, 16:40 UTC1h 50m
2026-06-04 SWA3682 MSY → MIA Jun 4, 11:30 UTCJun 4, 12:50 UTC1h 20m

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 N8542Z page for operator, model, and routing details .

Mode-S ABB8EA frequently asked

What is Mode-S code ABB8EA?
ABB8EA is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8542Z.
Where is Mode-S ABB8EA registered?
Mode-S code ABB8EA 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 ABB8EA broadcasting right now?
No active broadcast right now. Last signal was Jun 10, 04:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABB8EA, octal 52734352, decimal 11,253,994.
What flights does ABB8EA operate?
Mode-S ABB8EA has broadcast 20 distinct callsigns, including SWA410, SWA3021, SWA2303, SWA2118, SWA1882.