Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

ABD9D9

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8629A · BOEING 737-800 · operated by SOUTHWEST AIRLINES CO

Hex
ABD9D9
Octal
52754731
Decimal
11,262,425
Country
US
Tail
N8629A
Type
B738
No current signal · last broadcast Jul 26, 22:15 UTC
Flights observed
712
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:15 UTC

Last known position

Most recent position reported by Mode-S ABD9D9.

Country allocation

The ICAO 24-bit address ABD9D9 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
SWA197 Southwest Airlines 6 2026-07-26
SWA2085 - 5 2026-06-24
SWA1086 Southwest Airlines 5 2026-05-25
SWA446 - 4 2026-07-12
SWA4112 Southwest Airlines 4 2026-04-17
SWA3928 - 4 2026-04-13
SWA3300 Southwest Airlines 4 2026-04-14
SWA3178 Southwest Airlines 4 2026-04-18
SWA2962 - 4 2026-07-15
SWA2388 - 4 2026-06-20
SWA2204 - 4 2026-06-17
SWA1956 Southwest Airlines 4 2026-07-18
SWA1473 Southwest Airlines 4 2026-05-26
SWA1221 - 4 2026-07-07
SWA9 - 3 2026-06-07
SWA752 Southwest Airlines 3 2026-05-06
SWA719 Southwest Airlines 3 2026-06-06
SWA684 Southwest Airlines 3 2026-05-04
SWA658 Southwest Airlines 3 2026-05-15
SWA582 - 3 2026-07-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA1111 BUR → OAK Jul 26, 21:20 UTCJul 26, 22:15 UTC55m
2026-07-26 SWA197 MDW → DEN Jul 26, 18:10 UTCJul 26, 20:00 UTC1h 50m
2026-07-26 SWA197 MDW → DEN Jul 26, 16:15 UTCJul 26, 16:25 UTC10m
2026-07-26 SWA2691 SYR → BWI Jul 26, 12:20 UTCJul 26, 12:55 UTC35m
2026-07-26 SWA2691 SYR → BWI Jul 26, 12:16 UTCJul 26, 14:53 UTC2h 37m
2026-07-25 SWA2780 SJC → MDW Jul 25, 22:50 UTCJul 26, 01:05 UTC2h 15m
2026-07-25 SWA4970 MCO → CMH Jul 25, 19:10 UTCJul 25, 21:40 UTC2h 30m
2026-07-25 SWA1373 OAK → LGB Jul 25, 15:45 UTCJul 25, 17:40 UTC1h 55m
2026-07-25 SWA1373 OAK → LGB Jul 25, 15:42 UTCJul 25, 17:36 UTC1h 54m
2026-07-25 SWA4042 OMA → PHX Jul 25, 12:20 UTCJul 25, 14:30 UTC2h 10m
2026-07-25 SWA4383 OAK → ONT Jul 25, 00:30 UTCJul 25, 02:30 UTC2h 0m
2026-07-24 SWA3049 DEN → ORD Jul 24, 22:55 UTCJul 24, 23:30 UTC35m
2026-07-24 SWA3049 DEN → ORD Jul 24, 19:40 UTCJul 24, 21:10 UTC1h 30m
2026-07-24 SWA2818 SJC → DEN Jul 24, 16:30 UTCJul 24, 18:35 UTC2h 5m
2026-07-24 SWA2818 SJC → DEN Jul 24, 16:29 UTCJul 24, 18:30 UTC2h 1m
2026-07-24 SWA1444 OAK → LAS Jul 24, 13:40 UTCJul 24, 15:05 UTC1h 25m
2026-07-24 SWA4976 LAS → MSY Jul 24, 11:10 UTCJul 24, 12:35 UTC1h 25m
2026-07-23 SWA3911 BNA → BDL Jul 23, 23:55 UTCJul 24, 02:00 UTC2h 5m
2026-07-23 SWA4997 MCI → BOS Jul 23, 19:55 UTCJul 23, 22:30 UTC2h 35m
2026-07-23 SWA4327 - Jul 23, 17:15 UTCJul 23, 18:30 UTC1h 15m
2026-07-23 SWA4053 AUS → PHX Jul 23, 15:25 UTCJul 23, 16:05 UTC40m
2026-07-23 SWA4445 BNA → PIT Jul 23, 13:25 UTCJul 23, 14:00 UTC35m
2026-07-23 SWA4188 BOS → BWI Jul 23, 11:20 UTCJul 23, 12:25 UTC1h 5m
2026-07-23 SWA1589 BWI → BOS Jul 23, 03:55 UTCJul 23, 05:05 UTC1h 10m
2026-07-22 SWA2697 OAK → LAS Jul 22, 23:15 UTCJul 23, 02:15 UTC3h 0m
2026-07-22 SWA2697 OAK → LAS Jul 22, 23:10 UTCJul 23, 02:12 UTC3h 2m
2026-07-22 SWA2410 PHX → OAK Jul 22, 18:35 UTCJul 22, 22:00 UTC3h 25m
2026-07-22 SWA2410 PHX → OAK Jul 22, 18:30 UTCJul 22, 22:00 UTC3h 30m
2026-07-22 SWA1681 MHT → BWI Jul 22, 13:45 UTCJul 22, 15:10 UTC1h 25m
2026-07-22 SWA3287 DEN → LAS Jul 22, 11:30 UTCJul 22, 12:25 UTC55m
2026-07-22 SWA3287 DEN → LAS Jul 22, 11:26 UTCJul 22, 12:23 UTC58m
2026-07-22 SWA271 DAL → LAS Jul 22, 03:05 UTCJul 22, 04:25 UTC1h 20m
2026-07-22 SWA2260 LIH → LAS Jul 22, 00:50 UTCJul 22, 02:05 UTC1h 15m
2026-07-21 SWA1530 SRQ → DAL Jul 21, 22:00 UTCJul 21, 23:10 UTC1h 10m
2026-07-21 SWA1530 SRQ → DAL Jul 21, 21:59 UTCJul 21, 23:17 UTC1h 18m
2026-07-21 SWA4264 SJC → PDX Jul 21, 16:25 UTCJul 21, 19:55 UTC3h 30m
2026-07-21 SWA945 SAN → OAK Jul 21, 12:50 UTCJul 21, 15:00 UTC2h 10m
2026-07-21 SWA1153 - Jul 21, 10:20 UTCJul 21, 11:10 UTC50m
2026-07-21 SWA1153 CLE → BWI Jul 21, 10:15 UTCJul 21, 11:09 UTC54m
2026-07-21 SWA474 BOI → OAK Jul 21, 02:25 UTCJul 21, 03:30 UTC1h 5m
2026-07-21 SWA2264 BWI → CLT Jul 21, 00:10 UTCJul 21, 01:15 UTC1h 5m
2026-07-20 SWA2264 BWI → CLT Jul 20, 20:30 UTCJul 20, 22:55 UTC2h 25m
2026-07-20 SWA4238 SPQ → DEN Jul 20, 17:05 UTCJul 20, 19:00 UTC1h 55m
2026-07-20 SWA2019 - Jul 20, 12:50 UTCJul 20, 15:40 UTC2h 50m
2026-07-20 SWA4430 - Jul 20, 10:10 UTCJul 20, 11:35 UTC1h 25m
2026-07-20 SWA2597 SJC → LAX Jul 20, 00:00 UTCJul 20, 02:10 UTC2h 10m
2026-07-19 SWA2597 SJC → LAX Jul 19, 23:59 UTCJul 20, 02:26 UTC2h 27m
2026-07-19 SWA2861 DEN → SAN Jul 19, 10:50 UTCJul 19, 12:45 UTC1h 55m
2026-07-19 SWA2861 DEN → SAN Jul 19, 10:50 UTCJul 19, 12:40 UTC1h 50m
2026-07-19 SWA580 - Jul 19, 03:00 UTCJul 19, 03:35 UTC35m

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 N8629A page for operator, model, and routing details .

Mode-S ABD9D9 frequently asked

What is Mode-S code ABD9D9?
ABD9D9 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8629A.
Where is Mode-S ABD9D9 registered?
Mode-S code ABD9D9 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 ABD9D9 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABD9D9, octal 52754731, decimal 11,262,425.
What flights does ABD9D9 operate?
Mode-S ABD9D9 has broadcast 20 distinct callsigns, including SWA197, SWA2085, SWA1086, SWA446, SWA4112.