Apparatus

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sensors Mode-S transponder

ABD971

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8626B · BOEING 737-800 · operated by SOUTHWEST AIRLINES CO

Hex
ABD971
Octal
52754561
Decimal
11,262,321
Country
US
Tail
N8626B
Type
B738
No current signal · last broadcast 1h ago
Flights observed
672
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S ABD971.

Country allocation

The ICAO 24-bit address ABD971 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
SWA2270 Southwest Airlines 5 2026-04-16
SWA736 Southwest Airlines 4 2026-06-09
SWA734 Southwest Airlines 4 2026-05-02
SWA4512 Southwest Airlines 4 2026-06-11
SWA3553 - 4 2026-07-07
SWA3190 - 4 2026-06-25
SWA263 Southwest Airlines 4 2026-04-15
SWA1655 - 4 2026-07-03
SWA1562 Southwest Airlines 4 2026-05-29
SWA1159 Southwest Airlines 4 2026-06-13
SWA585 - 3 2026-07-13
SWA4806 Southwest Airlines 3 2026-05-15
SWA4404 - 3 2026-07-09
SWA4312 - 3 2026-06-25
SWA3847 Southwest Airlines 3 2026-05-27
SWA3806 Southwest Airlines 3 2026-05-10
SWA3795 Southwest Airlines 3 2026-05-21
SWA3769 Southwest Airlines 3 2026-06-09
SWA373 Southwest Airlines 3 2026-04-17
SWA3400 Southwest Airlines 3 2026-05-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 SWA1122 - Jul 15, 03:25 UTCJul 15, 04:00 UTC35m
2026-07-15 SWA1122 - Jul 15, 00:50 UTCJul 15, 01:50 UTC1h 0m
2026-07-14 SWA2219 LAS → DAL Jul 14, 18:50 UTCJul 14, 21:15 UTC2h 25m
2026-07-14 SWA2219 LAS → DAL Jul 14, 18:51 UTCJul 14, 21:12 UTC2h 21m
2026-07-14 SWA2408 SLC → LAS Jul 14, 16:25 UTCJul 14, 17:25 UTC1h 0m
2026-07-14 SWA2408 SLC → LAS Jul 14, 16:25 UTCJul 14, 17:21 UTC56m
2026-07-14 SWA452 DEN → SLC Jul 14, 14:20 UTCJul 14, 15:25 UTC1h 5m
2026-07-14 SWA3368 - Jul 14, 09:55 UTCJul 14, 12:25 UTC2h 30m
2026-07-14 SWA3972 - Jul 14, 01:10 UTCJul 14, 02:30 UTC1h 20m
2026-07-13 SWA2904 - Jul 13, 23:15 UTCJul 14, 00:00 UTC45m
2026-07-13 SWA2904 MDW → STL Jul 13, 23:15 UTCJul 14, 00:01 UTC46m
2026-07-13 SWA1095 LGA → MDW Jul 13, 20:16 UTCJul 13, 21:57 UTC1h 41m
2026-07-13 SWA1095 LGA → MDW Jul 13, 20:15 UTCJul 13, 22:00 UTC1h 45m
2026-07-13 SWA2813 DEN → LGA Jul 13, 15:25 UTCJul 13, 18:50 UTC3h 25m
2026-07-13 SWA2765 MDW → DEN Jul 13, 12:03 UTCJul 13, 13:54 UTC1h 51m
2026-07-13 SWA2765 MDW → DEN Jul 13, 12:05 UTCJul 13, 14:00 UTC1h 55m
2026-07-13 SWA585 BOS → MDW Jul 13, 03:15 UTCJul 13, 05:10 UTC1h 55m
2026-07-13 SWA585 BOS → MDW Jul 13, 03:15 UTCJul 13, 05:18 UTC2h 3m
2026-07-12 SWA735 DEN → BOS Jul 12, 22:40 UTCJul 13, 02:15 UTC3h 35m
2026-07-12 SWA2856 - Jul 12, 20:10 UTCJul 12, 21:25 UTC1h 15m
2026-07-12 SWA2856 MCI → DEN Jul 12, 20:05 UTCJul 12, 21:21 UTC1h 17m
2026-07-12 SWA1229 DEN → MCI Jul 12, 17:25 UTCJul 12, 18:36 UTC1h 11m
2026-07-12 SWA1229 - Jul 12, 17:25 UTCJul 12, 18:35 UTC1h 10m
2026-07-12 SWA1430 - Jul 12, 13:40 UTCJul 12, 15:55 UTC2h 15m
2026-07-12 SWA1430 BNA → DEN Jul 12, 13:38 UTCJul 12, 15:49 UTC2h 12m
2026-07-12 SWA1167 - Jul 12, 11:10 UTCJul 12, 12:05 UTC55m
2026-07-12 SWA1167 CLT → BNA Jul 12, 11:06 UTCJul 12, 12:08 UTC1h 2m
2026-07-12 SWA4518 - Jul 12, 02:15 UTCJul 12, 03:01 UTC45m
2026-07-12 SWA4518 BNA → CLT Jul 12, 02:14 UTCJul 12, 03:03 UTC49m
2026-07-11 SWA259 AUS → BNA Jul 11, 22:15 UTCJul 12, 00:05 UTC1h 50m
2026-07-11 SWA451 - Jul 11, 19:25 UTCJul 11, 21:10 UTC1h 45m
2026-07-11 SWA1955 - Jul 11, 16:30 UTCJul 11, 18:05 UTC1h 35m
2026-07-11 SWA1955 HOU → BNA Jul 11, 16:27 UTCJul 11, 18:00 UTC1h 33m
2026-07-11 SWA4668 - Jul 11, 12:15 UTCJul 11, 14:30 UTC2h 15m
2026-07-11 SWA4360 STL → PHX Jul 11, 04:30 UTCJul 11, 07:15 UTC2h 45m
2026-07-11 SWA4360 STL → PHX Jul 11, 04:27 UTCJul 11, 07:15 UTC2h 49m
2026-07-10 SWA3472 RSW → STL Jul 10, 23:55 UTCJul 11, 02:55 UTC3h 0m
2026-07-10 SWA4764 - Jul 10, 20:20 UTCJul 10, 23:00 UTC2h 40m
2026-07-10 SWA225 BWI → PWM Jul 10, 17:45 UTCJul 10, 19:20 UTC1h 35m
2026-07-10 SWA9003 - Jul 10, 14:55 UTCJul 10, 16:20 UTC1h 25m
2026-07-10 SWA4115 - Jul 10, 00:25 UTCJul 10, 01:30 UTC1h 5m
2026-07-10 SWA4115 MSP → MDW Jul 10, 00:23 UTCJul 10, 01:26 UTC1h 4m
2026-07-09 SWA4643 - Jul 9, 22:20 UTCJul 9, 23:15 UTC55m
2026-07-09 SWA1358 - Jul 9, 19:35 UTCJul 9, 21:20 UTC1h 45m
2026-07-09 SWA4751 - Jul 9, 15:40 UTCJul 9, 18:15 UTC2h 35m
2026-07-09 SWA4751 SAN → DAL Jul 9, 15:38 UTCJul 9, 18:12 UTC2h 34m
2026-07-09 SWA3545 - Jul 9, 11:25 UTCJul 9, 13:45 UTC2h 20m
2026-07-09 SWA4404 - Jul 9, 00:20 UTCJul 9, 02:35 UTC2h 15m
2026-07-08 SWA3376 - Jul 8, 20:35 UTCJul 8, 22:25 UTC1h 50m
2026-07-08 SWA4012 - Jul 8, 16:45 UTCJul 8, 19:25 UTC2h 40m

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 N8626B page for operator, model, and routing details .

Mode-S ABD971 frequently asked

What is Mode-S code ABD971?
ABD971 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8626B.
Where is Mode-S ABD971 registered?
Mode-S code ABD971 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 ABD971 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABD971, octal 52754561, decimal 11,262,321.
What flights does ABD971 operate?
Mode-S ABD971 has broadcast 20 distinct callsigns, including SWA2270, SWA736, SWA734, SWA4512, SWA3553.