Apparatus

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sensors Mode-S transponder

ABDC9B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8632A · BOEING 737-800 · operated by SOUTHWEST AIRLINES CO

Hex
ABDC9B
Octal
52756233
Decimal
11,263,131
Country
US
Tail
N8632A
Type
B738
No current signal · last broadcast Jul 26, 22:45 UTC
Flights observed
581
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:45 UTC

Last known position

Most recent position reported by Mode-S ABDC9B.

Country allocation

The ICAO 24-bit address ABDC9B 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
SWA2104 - 5 2026-07-14
SWA2336 - 4 2026-06-30
SWA2126 Southwest Airlines 4 2026-07-20
SWA1281 Southwest Airlines 4 2026-05-25
SWA1048 Southwest Airlines 4 2026-07-20
SWA4557 - 3 2026-07-05
SWA4470 - 3 2026-07-01
SWA4422 Southwest Airlines 3 2026-05-31
SWA4403 - 3 2026-07-03
SWA4150 Southwest Airlines 3 2026-06-20
SWA3804 Southwest Airlines 3 2026-05-05
SWA3726 - 3 2026-07-12
SWA3311 - 3 2026-07-08
SWA3231 - 3 2026-07-12
SWA3049 Southwest Airlines 3 2026-06-25
SWA273 - 3 2026-07-14
SWA2706 - 3 2026-06-30
SWA2142 - 3 2026-06-14
SWA1798 - 3 2026-07-07
SWA1739 Southwest Airlines 3 2026-05-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA1040 TPA → PVD Jul 26, 22:20 UTCJul 26, 22:45 UTC25m
2026-07-26 SWA1230 STL → ATL Jul 26, 19:55 UTCJul 26, 21:20 UTC1h 25m
2026-07-26 SWA1719 SJC → HNL Jul 26, 17:15 UTCJul 26, 18:35 UTC1h 20m
2026-07-26 SWA1998 MHT → BWI Jul 26, 13:30 UTCJul 26, 16:00 UTC2h 30m
2026-07-26 SWA1998 MHT → BWI Jul 26, 13:29 UTCJul 26, 15:56 UTC2h 27m
2026-07-26 SWA4547 MCO → HOU Jul 26, 11:00 UTCJul 26, 11:50 UTC50m
2026-07-26 SWA4547 MCO → HOU Jul 26, 10:58 UTCJul 26, 11:47 UTC49m
2026-07-26 SWA3301 BOS → BNA Jul 26, 01:10 UTCJul 26, 03:20 UTC2h 10m
2026-07-25 SWA1880 ATL → PHL Jul 25, 21:50 UTCJul 25, 23:40 UTC1h 50m
2026-07-25 SWA1422 RDU → MDW Jul 25, 17:30 UTCJul 25, 20:40 UTC3h 10m
2026-07-25 SWA1422 RDU → MDW Jul 25, 17:25 UTCJul 25, 20:34 UTC3h 9m
2026-07-25 SWA1722 GEG → SJC Jul 25, 15:00 UTCJul 25, 16:25 UTC1h 25m
2026-07-25 SWA1722 GEG → SJC Jul 25, 14:57 UTCJul 25, 16:23 UTC1h 26m
2026-07-25 SWA1722 GEG → SJC Jul 25, 12:05 UTCJul 25, 13:40 UTC1h 35m
2026-07-24 SWA3528 BUR → OAK Jul 24, 23:45 UTCJul 25, 03:55 UTC4h 10m
2026-07-24 SWA1139 AUS → FLL Jul 24, 16:35 UTCJul 24, 22:35 UTC6h 0m
2026-07-24 SWA2723 TPA → MSY Jul 24, 12:20 UTCJul 24, 15:19 UTC2h 59m
2026-07-24 SWA2723 TPA → MSY Jul 24, 12:20 UTCJul 24, 15:20 UTC3h 0m
2026-07-24 SWA765 CLE → BWI Jul 24, 00:05 UTCJul 24, 01:00 UTC55m
2026-07-23 SWA389 MSP → BWI Jul 23, 20:35 UTCJul 23, 23:00 UTC2h 25m
2026-07-23 SWA389 MSP → BWI Jul 23, 20:31 UTCJul 23, 22:55 UTC2h 25m
2026-07-23 SWA483 ALB → BWI Jul 23, 17:15 UTCJul 23, 19:20 UTC2h 5m
2026-07-23 SWA483 ALB → BWI Jul 23, 15:35 UTCJul 23, 16:15 UTC40m
2026-07-23 SWA2981 ISP → BWI Jul 23, 13:05 UTCJul 23, 14:25 UTC1h 20m
2026-07-23 SWA2667 MCO → MSY Jul 23, 10:35 UTCJul 23, 11:50 UTC1h 15m
2026-07-23 SWA572 SMF → BUR Jul 23, 02:30 UTCJul 23, 03:50 UTC1h 20m
2026-07-23 SWA193 MKE → BWI Jul 23, 00:30 UTCJul 23, 01:20 UTC50m
2026-07-22 SWA2089 - Jul 22, 23:10 UTCJul 22, 23:45 UTC35m
2026-07-22 SWA4599 PHL → MDW Jul 22, 20:00 UTCJul 22, 21:45 UTC1h 45m
2026-07-22 SWA4599 PHL → MDW Jul 22, 19:55 UTCJul 22, 21:40 UTC1h 45m
2026-07-22 SWA1044 BWI → PVD Jul 22, 16:25 UTCJul 22, 18:50 UTC2h 25m
2026-07-22 SWA2918 BWI → BOS Jul 22, 13:40 UTCJul 22, 14:55 UTC1h 15m
2026-07-22 SWA1002 BUR → SJC Jul 22, 11:40 UTCJul 22, 12:35 UTC55m
2026-07-22 SWA1002 BUR → SJC Jul 22, 11:37 UTCJul 22, 12:32 UTC55m
2026-07-22 SWA3486 ATL → TPA Jul 22, 04:50 UTCJul 22, 05:25 UTC35m
2026-07-22 SWA3324 - Jul 22, 02:30 UTCJul 22, 03:15 UTC45m
2026-07-21 SWA3454 SFO → SAN Jul 21, 23:05 UTCJul 22, 00:55 UTC1h 50m
2026-07-21 SWA1221 DCA → HOU Jul 21, 19:55 UTCJul 21, 22:05 UTC2h 10m
2026-07-21 SWA1221 DCA → HOU Jul 21, 19:50 UTCJul 21, 22:02 UTC2h 12m
2026-07-21 SWA1221 DCA → HOU Jul 21, 17:55 UTCJul 21, 18:35 UTC40m
2026-07-21 SWA1699 RDU → DAL Jul 21, 14:38 UTCJul 21, 16:24 UTC1h 46m
2026-07-21 SWA1699 RDU → DAL Jul 21, 14:40 UTCJul 21, 16:30 UTC1h 50m
2026-07-21 SWA4156 BOS → DEN Jul 21, 09:15 UTCJul 21, 13:25 UTC4h 10m
2026-07-21 SWA459 LAS → BWI Jul 21, 03:35 UTCJul 21, 05:40 UTC2h 5m
2026-07-21 SWA459 LAS → BWI Jul 21, 03:32 UTCJul 21, 05:39 UTC2h 7m
2026-07-20 SWA4395 LAS → BNA Jul 20, 23:10 UTCJul 21, 02:30 UTC3h 20m
2026-07-20 SWA4395 LAS → BNA Jul 20, 23:10 UTCJul 21, 02:25 UTC3h 15m
2026-07-20 SWA1562 LAX → PHX Jul 20, 20:11 UTCJul 20, 21:33 UTC1h 22m
2026-07-20 SWA1562 LAX → PHX Jul 20, 20:15 UTCJul 20, 21:35 UTC1h 20m
2026-07-20 SWA2960 STL → PHX Jul 20, 16:25 UTCJul 20, 18:30 UTC2h 5m

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 N8632A page for operator, model, and routing details .

Mode-S ABDC9B frequently asked

What is Mode-S code ABDC9B?
ABDC9B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8632A.
Where is Mode-S ABDC9B registered?
Mode-S code ABDC9B 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 ABDC9B broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABDC9B, octal 52756233, decimal 11,263,131.
What flights does ABDC9B operate?
Mode-S ABDC9B has broadcast 20 distinct callsigns, including SWA2104, SWA2336, SWA2126, SWA1281, SWA1048.