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sensors Mode-S transponder

ABB1DE

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8525S · BOEING 737-800 · operated by SOUTHWEST AIRLINES CO

Hex
ABB1DE
Octal
52730736
Decimal
11,252,190
Country
US
Tail
N8525S
Type
B738
Broadcasting now · callsign SWA976 · 32,000 ft
Flights observed
539
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Current position

ABB1DE is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address ABB1DE 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
SWA3620 Southwest Airlines 5 2026-04-16
SWA2710 - 5 2026-06-25
SWA1422 Southwest Airlines 5 2026-05-08
SWA1171 Southwest Airlines 5 2026-05-01
SWA8517 Southwest Airlines 4 2026-06-15
SWA4816 - 4 2026-04-13
SWA4403 Southwest Airlines 4 2026-06-15
SWA3727 Southwest Airlines 4 2026-05-08
SWA1346 Southwest Airlines 4 2026-05-14
SWA878 Southwest Airlines 3 2026-04-18
SWA849 - 3 2026-04-14
SWA667 - 3 2026-07-11
SWA557 Southwest Airlines 3 2026-05-22
SWA3840 - 3 2026-06-24
SWA3839 - 3 2026-06-27
SWA3733 - 3 2026-06-27
SWA3190 - 3 2026-07-09
SWA3049 - 3 2026-07-10
SWA281 - 3 2026-06-19
SWA2791 Southwest Airlines 3 2026-05-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 SWA976 - Jul 13, 23:45 UTCJul 14, 01:30 UTC1h 45m
2026-07-13 SWA976 - Jul 13, 21:15 UTCJul 13, 22:40 UTC1h 25m
2026-07-13 SWA1004 - Jul 13, 19:05 UTCJul 13, 20:05 UTC1h 0m
2026-07-13 SWA4614 - Jul 13, 16:10 UTCJul 13, 17:50 UTC1h 40m
2026-07-13 SWA4501 MCO → STL Jul 13, 13:05 UTCJul 13, 15:00 UTC1h 55m
2026-07-13 SWA4501 MCO → STL Jul 13, 13:01 UTCJul 13, 14:58 UTC1h 57m
2026-07-13 SWA3721 - Jul 13, 09:10 UTCJul 13, 11:45 UTC2h 35m
2026-07-13 SWA3721 SJU → MCO Jul 13, 09:08 UTCJul 13, 11:40 UTC2h 32m
2026-07-13 SWA1104 - Jul 13, 05:10 UTCJul 13, 05:31 UTC20m
2026-07-13 SWA1104 - Jul 13, 01:40 UTCJul 13, 03:30 UTC1h 50m
2026-07-12 SWA3874 - Jul 12, 20:35 UTCJul 12, 23:40 UTC3h 5m
2026-07-12 SWA3874 SAT → BWI Jul 12, 20:33 UTCJul 12, 23:43 UTC3h 10m
2026-07-12 SWA4951 - Jul 12, 18:20 UTCJul 12, 19:30 UTC1h 10m
2026-07-12 SWA4927 - Jul 12, 16:01 UTCJul 12, 17:10 UTC1h 10m
2026-07-12 SWA4467 - Jul 12, 13:10 UTCJul 12, 15:01 UTC1h 50m
2026-07-12 SWA4467 BNA → SAT Jul 12, 13:09 UTCJul 12, 14:59 UTC1h 50m
2026-07-12 SWA1425 JPN → BNA Jul 12, 10:15 UTCJul 12, 11:40 UTC1h 25m
2026-07-11 SWA2941 - Jul 11, 22:25 UTCJul 11, 23:50 UTC1h 25m
2026-07-11 SWA4974 - Jul 11, 20:30 UTCJul 11, 21:35 UTC1h 5m
2026-07-11 SWA3804 LAS → MDW Jul 11, 17:40 UTCJul 11, 19:45 UTC2h 5m
2026-07-11 SWA667 - Jul 11, 15:20 UTCJul 11, 16:25 UTC1h 5m
2026-07-11 SWA2981 MSY → BNA Jul 11, 12:35 UTCJul 11, 13:50 UTC1h 15m
2026-07-11 SWA2981 MSY → BNA Jul 11, 12:34 UTCJul 11, 13:43 UTC1h 9m
2026-07-11 SWA3964 STL → MSY Jul 11, 04:30 UTCJul 11, 05:55 UTC1h 25m
2026-07-11 SWA3457 RDU → STL Jul 11, 01:50 UTCJul 11, 03:35 UTC1h 45m
2026-07-10 SWA1389 DAL → RDU Jul 10, 21:15 UTCJul 10, 23:30 UTC2h 15m
2026-07-10 SWA1389 DAL → RDU Jul 10, 21:11 UTCJul 10, 23:24 UTC2h 13m
2026-07-10 SWA4819 - Jul 10, 17:45 UTCJul 10, 20:10 UTC2h 25m
2026-07-10 SWA4785 - Jul 10, 14:05 UTCJul 10, 16:10 UTC2h 5m
2026-07-10 SWA3876 - Jul 10, 10:55 UTCJul 10, 13:00 UTC2h 5m
2026-07-10 SWA4383 - Jul 10, 02:30 UTCJul 10, 04:30 UTC2h 0m
2026-07-10 SWA4383 BWI → SRQ Jul 10, 02:26 UTCJul 10, 04:33 UTC2h 7m
2026-07-10 SWA3049 - Jul 10, 01:00 UTCJul 10, 01:25 UTC25m
2026-07-10 SWA3049 RIC → BWI Jul 10, 00:59 UTCJul 10, 01:24 UTC25m
2026-07-09 SWA3049 - Jul 9, 19:50 UTCJul 9, 21:20 UTC1h 30m
2026-07-09 SWA2818 - Jul 9, 16:20 UTCJul 9, 18:30 UTC2h 10m
2026-07-09 SWA2818 MDW → MCO Jul 9, 16:19 UTCJul 9, 18:25 UTC2h 6m
2026-07-09 SWA1444 DCA → MDW Jul 9, 13:50 UTCJul 9, 15:15 UTC1h 25m
2026-07-09 SWA4976 - Jul 9, 11:05 UTCJul 9, 11:30 UTC25m
2026-07-09 SWA4976 MDW → DCA Jul 9, 11:05 UTCJul 9, 12:24 UTC1h 19m
2026-07-09 SWA3190 PHX → MDW Jul 9, 01:30 UTCJul 9, 04:35 UTC3h 5m
2026-07-08 SWA3190 SEA → PHX Jul 8, 21:40 UTCJul 9, 00:00 UTC2h 20m
2026-07-08 SWA3190 - Jul 8, 14:50 UTCJul 8, 19:50 UTC5h 0m
2026-07-08 SWA3559 - Jul 8, 10:25 UTCJul 8, 13:20 UTC2h 55m
2026-07-08 SWA3559 SAT → BWI Jul 8, 10:21 UTCJul 8, 13:16 UTC2h 55m
2026-07-08 SWA1623 - Jul 8, 04:20 UTCJul 8, 06:10 UTC1h 50m
2026-07-08 SWA1623 PHX → SAT Jul 8, 04:16 UTCJul 8, 06:06 UTC1h 50m
2026-07-08 SWA2863 - Jul 8, 00:25 UTCJul 8, 03:15 UTC2h 50m
2026-07-07 SWA232 ATL → MDW Jul 7, 21:30 UTCJul 7, 22:55 UTC1h 25m
2026-07-07 SWA232 ATL → MDW Jul 7, 21:30 UTCJul 7, 22:52 UTC1h 22m

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 N8525S page for operator, model, and routing details .

Mode-S ABB1DE frequently asked

What is Mode-S code ABB1DE?
ABB1DE is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8525S.
Where is Mode-S ABB1DE registered?
Mode-S code ABB1DE 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 ABB1DE broadcasting right now?
Yes. Mode-S ABB1DE is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABB1DE, octal 52730736, decimal 11,252,190.
What flights does ABB1DE operate?
Mode-S ABB1DE has broadcast 20 distinct callsigns, including SWA3620, SWA2710, SWA1422, SWA1171, SWA8517.