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sensors Mode-S transponder

ABB1C2

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8524Z · BOEING 737-800 · operated by SOUTHWEST AIRLINES CO

Hex
ABB1C2
Octal
52730702
Decimal
11,252,162
Country
US
Tail
N8524Z
Type
B738
Broadcasting now · callsign SWA4011 · 37,000 ft
Flights observed
654
Distinct callsigns
20
Country
US
Last broadcast
17m ago

Current position

ABB1C2 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address ABB1C2 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
SWA1418 - 7 2026-07-01
SWA1685 Southwest Airlines 6 2026-04-16
SWA901 Southwest Airlines 4 2026-04-27
SWA4363 Southwest Airlines 4 2026-05-10
SWA4018 Southwest Airlines 4 2026-07-08
SWA2127 Southwest Airlines 4 2026-05-15
SWA2069 - 4 2026-06-30
SWA1346 Southwest Airlines 4 2026-04-17
SWA960 - 3 2026-06-30
SWA875 - 3 2026-06-24
SWA709 - 3 2026-07-02
SWA636 Southwest Airlines 3 2026-05-30
SWA626 - 3 2026-07-05
SWA4619 Southwest Airlines 3 2026-07-07
SWA4220 Southwest Airlines 3 2026-06-25
SWA3894 - 3 2026-06-30
SWA3837 Southwest Airlines 3 2026-05-26
SWA3780 Southwest Airlines 3 2026-04-21
SWA3749 Southwest Airlines 3 2026-07-02
SWA3240 Southwest Airlines 3 2026-05-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 SWA4011 - Jul 15, 02:15 UTCJul 15, 02:30 UTC15m
2026-07-14 SWA399 - Jul 14, 22:10 UTCJul 15, 01:15 UTC3h 4m
2026-07-14 SWA2834 - Jul 14, 17:45 UTCJul 14, 20:20 UTC2h 35m
2026-07-14 SWA2588 DEN → MKE Jul 14, 14:35 UTCJul 14, 16:35 UTC2h 0m
2026-07-14 SWA2230 LAS → DEN Jul 14, 06:15 UTCJul 14, 07:40 UTC1h 25m
2026-07-14 SWA2230 LAS → DEN Jul 14, 06:15 UTCJul 14, 07:45 UTC1h 30m
2026-07-14 SWA1566 DEN → LAS Jul 14, 03:45 UTCJul 14, 05:10 UTC1h 25m
2026-07-14 SWA1566 DEN → LAS Jul 14, 03:45 UTCJul 14, 05:10 UTC1h 25m
2026-07-14 SWA1974 - Jul 14, 00:30 UTCJul 14, 02:30 UTC2h 0m
2026-07-14 SWA1974 HOU → DEN Jul 14, 00:29 UTCJul 14, 02:29 UTC2h 1m
2026-07-13 SWA2998 - Jul 13, 22:15 UTCJul 13, 23:05 UTC50m
2026-07-13 SWA2998 MSY → HOU Jul 13, 22:12 UTCJul 13, 23:09 UTC57m
2026-07-13 SWA234 ATL → MSY Jul 13, 20:00 UTCJul 13, 21:05 UTC1h 5m
2026-07-13 SWA3359 PIT → ATL Jul 13, 16:39 UTCJul 13, 18:12 UTC1h 33m
2026-07-13 SWA1052 - Jul 13, 15:00 UTCJul 13, 15:40 UTC40m
2026-07-13 SWA2683 SFO → BWI Jul 13, 04:50 UTCJul 13, 09:40 UTC4h 50m
2026-07-11 SWA365 DAL → SFO Jul 11, 13:55 UTCJul 11, 17:00 UTC3h 5m
2026-07-11 SWA365 - Jul 11, 09:55 UTCJul 11, 12:15 UTC2h 20m
2026-07-11 SWA46 DAL → FLL Jul 11, 00:35 UTCJul 11, 03:35 UTC3h 0m
2026-07-10 SWA46 - Jul 10, 22:35 UTCJul 10, 23:15 UTC40m
2026-07-10 SWA37 - Jul 10, 20:45 UTCJul 10, 21:30 UTC45m
2026-07-10 SWA2354 - Jul 10, 18:10 UTCJul 10, 19:40 UTC1h 30m
2026-07-10 SWA4099 - Jul 10, 14:50 UTCJul 10, 17:00 UTC2h 10m
2026-07-10 SWA4099 SMF → PDX Jul 10, 12:25 UTCJul 10, 13:30 UTC1h 5m
2026-07-10 SWA4226 LAS → SMF Jul 10, 05:50 UTCJul 10, 06:55 UTC1h 5m
2026-07-10 SWA5051 OAK → LAS Jul 10, 03:34 UTCJul 10, 04:38 UTC1h 4m
2026-07-10 SWA5051 OAK → LAS Jul 10, 03:35 UTCJul 10, 04:40 UTC1h 5m
2026-07-10 SWA5050 LAS → OAK Jul 10, 01:15 UTCJul 10, 02:20 UTC1h 5m
2026-07-10 SWA5050 LAS → OAK Jul 10, 01:14 UTCJul 10, 02:20 UTC1h 6m
2026-07-09 SWA3184 - Jul 9, 20:30 UTCJul 10, 00:00 UTC3h 30m
2026-07-09 SWA3184 IND → LAS Jul 9, 20:29 UTCJul 10, 00:00 UTC3h 31m
2026-07-09 SWA4721 - Jul 9, 17:20 UTCJul 9, 19:25 UTC2h 5m
2026-07-09 SWA4721 MCO → IND Jul 9, 17:19 UTCJul 9, 19:13 UTC1h 54m
2026-07-09 SWA4712 BNA → MCO Jul 9, 14:30 UTCJul 9, 15:55 UTC1h 25m
2026-07-09 SWA550 MCO → BNA Jul 9, 11:40 UTCJul 9, 13:15 UTC1h 35m
2026-07-09 SWA4874 - Jul 9, 05:15 UTCJul 9, 09:40 UTC4h 25m
2026-07-09 SWA3324 - Jul 9, 02:50 UTCJul 9, 03:40 UTC50m
2026-07-08 SWA3454 - Jul 8, 23:35 UTCJul 9, 01:25 UTC1h 50m
2026-07-08 SWA1221 - Jul 8, 20:05 UTCJul 8, 22:25 UTC2h 20m
2026-07-08 SWA1221 LAS → SAT Jul 8, 20:04 UTCJul 8, 22:21 UTC2h 17m
2026-07-08 SWA1221 - Jul 8, 17:50 UTCJul 8, 18:45 UTC55m
2026-07-08 SWA1699 - Jul 8, 14:30 UTCJul 8, 16:25 UTC1h 55m
2026-07-08 SWA4018 LGB → SJC Jul 8, 09:55 UTCJul 8, 13:05 UTC3h 10m
2026-07-08 SWA4018 LGB → SJC Jul 8, 09:53 UTCJul 8, 13:01 UTC3h 9m
2026-07-07 SWA4619 PHX → CVG Jul 7, 05:40 UTCJul 7, 07:35 UTC1h 55m
2026-07-07 SWA4619 PHX → CVG Jul 7, 05:38 UTCJul 7, 07:34 UTC1h 56m
2026-07-07 SWA2679 - Jul 7, 03:00 UTCJul 7, 04:50 UTC1h 50m
2026-07-07 SWA2679 PHL → PHL Jul 7, 02:50 UTCJul 7, 02:55 UTC5m
2026-07-06 SWA2679 MCO → PHL Jul 6, 23:50 UTCJul 7, 01:55 UTC2h 5m
2026-07-06 SWA349 AUS → MCO Jul 6, 15:35 UTCJul 6, 17:55 UTC2h 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 N8524Z page for operator, model, and routing details .

Mode-S ABB1C2 frequently asked

What is Mode-S code ABB1C2?
ABB1C2 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8524Z.
Where is Mode-S ABB1C2 registered?
Mode-S code ABB1C2 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 ABB1C2 broadcasting right now?
Yes. Mode-S ABB1C2 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABB1C2, octal 52730702, decimal 11,252,162.
What flights does ABB1C2 operate?
Mode-S ABB1C2 has broadcast 20 distinct callsigns, including SWA1418, SWA1685, SWA901, SWA4363, SWA4018.