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 Jul 26, 22:15 UTC
Flights observed
760
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:15 UTC

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
SWA2808 Southwest Airlines 4 2026-07-19
SWA263 Southwest Airlines 4 2026-04-15
SWA1711 Southwest Airlines 4 2026-07-25
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
SWA4133 Southwest Airlines 3 2026-07-22
SWA3847 Southwest Airlines 3 2026-05-27
SWA3806 Southwest Airlines 3 2026-05-10
SWA3795 Southwest Airlines 3 2026-05-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA1452 LAX → OAK Jul 26, 21:25 UTCJul 26, 22:15 UTC50m
2026-07-26 SWA2570 SLC → OAK Jul 26, 16:35 UTCJul 26, 20:05 UTC3h 30m
2026-07-26 SWA2570 SLC → OAK Jul 26, 14:35 UTCJul 26, 15:15 UTC40m
2026-07-26 SWA2828 SLC → PHX Jul 26, 11:05 UTCJul 26, 13:05 UTC2h 0m
2026-07-26 SWA2828 SLC → PHX Jul 26, 11:01 UTCJul 26, 13:02 UTC2h 1m
2026-07-26 SWA3728 DCA → DAL Jul 26, 04:05 UTCJul 26, 04:50 UTC45m
2026-07-26 SWA3728 DCA → DAL Jul 26, 02:25 UTCJul 26, 02:35 UTC10m
2026-07-26 SWA3728 DCA → DAL Jul 26, 02:20 UTCJul 26, 04:48 UTC2h 28m
2026-07-26 SWA2080 ABQ → DEN Jul 26, 00:55 UTCJul 26, 01:05 UTC10m
2026-07-25 SWA2080 ABQ → DEN Jul 25, 21:00 UTCJul 25, 23:15 UTC2h 15m
2026-07-25 SWA2080 ABQ → DEN Jul 25, 20:55 UTCJul 26, 00:52 UTC3h 57m
2026-07-25 SWA1711 TPA → BDL Jul 25, 16:40 UTCJul 25, 19:40 UTC3h 0m
2026-07-25 SWA1711 TPA → BDL Jul 25, 16:37 UTCJul 25, 19:40 UTC3h 3m
2026-07-25 SWA2142 SLC → DEN Jul 25, 13:40 UTCJul 25, 15:15 UTC1h 35m
2026-07-25 SWA1008 SAN → DAL Jul 25, 11:30 UTCJul 25, 12:20 UTC50m
2026-07-25 SWA1756 PHX → ELP Jul 25, 02:05 UTCJul 25, 03:40 UTC1h 35m
2026-07-25 SWA1756 PHX → ELP Jul 25, 02:02 UTCJul 25, 03:35 UTC1h 33m
2026-07-24 SWA2632 ONT → DEN Jul 24, 20:45 UTCJul 25, 00:00 UTC3h 15m
2026-07-24 SWA2919 MSY → DAL Jul 24, 17:00 UTCJul 24, 19:30 UTC2h 30m
2026-07-24 SWA4761 DEN → LGA Jul 24, 13:20 UTCJul 24, 15:55 UTC2h 35m
2026-07-24 SWA4761 DEN → LGA Jul 24, 13:16 UTCJul 24, 15:50 UTC2h 34m
2026-07-24 SWA4646 SJC → DEN Jul 24, 10:00 UTCJul 24, 12:10 UTC2h 10m
2026-07-24 SWA4840 DAL → HRL Jul 24, 01:10 UTCJul 24, 03:20 UTC2h 10m
2026-07-23 SWA1495 OAK → PHX Jul 23, 20:40 UTCJul 23, 23:45 UTC3h 5m
2026-07-23 SWA1495 OAK → PHX Jul 23, 20:35 UTCJul 23, 23:40 UTC3h 5m
2026-07-23 SWA500 BNA → DEN Jul 23, 17:15 UTCJul 23, 19:30 UTC2h 15m
2026-07-23 SWA4649 LAS → OAK Jul 23, 14:45 UTCJul 23, 15:55 UTC1h 10m
2026-07-23 SWA4649 LAS → OAK Jul 23, 14:41 UTCJul 23, 15:47 UTC1h 6m
2026-07-23 SWA576 LGA → DAL Jul 23, 10:45 UTCJul 23, 13:20 UTC2h 35m
2026-07-23 SWA2144 GRR → BWI Jul 23, 01:20 UTCJul 23, 03:05 UTC1h 45m
2026-07-23 SWA2144 GRR → BWI Jul 23, 01:15 UTCJul 23, 02:58 UTC1h 43m
2026-07-22 SWA4395 BWI → PWM Jul 22, 20:50 UTCJul 22, 23:55 UTC3h 5m
2026-07-22 SWA4395 BWI → PWM Jul 22, 20:46 UTCJul 22, 23:54 UTC3h 8m
2026-07-22 SWA4133 SAN → SJC Jul 22, 18:40 UTCJul 22, 19:35 UTC55m
2026-07-22 SWA146 - Jul 22, 16:10 UTCJul 22, 17:30 UTC1h 20m
2026-07-22 SWA425 CMH → DCA Jul 22, 14:00 UTCJul 22, 14:50 UTC50m
2026-07-22 SWA2331 - Jul 22, 05:20 UTCJul 22, 05:25 UTC5m
2026-07-22 SWA2331 LAS → SAN Jul 22, 05:15 UTCJul 22, 06:02 UTC47m
2026-07-22 SWA1390 SFO → SAN Jul 22, 02:30 UTCJul 22, 03:30 UTC1h 0m
2026-07-22 SWA989 ELP → AUS Jul 22, 00:35 UTCJul 22, 01:40 UTC1h 5m
2026-07-21 SWA3970 BOS → STL Jul 21, 20:35 UTCJul 21, 23:30 UTC2h 55m
2026-07-21 SWA981 SJC → LAX Jul 21, 15:50 UTCJul 21, 18:35 UTC2h 45m
2026-07-21 SWA3150 - Jul 21, 12:55 UTCJul 21, 13:40 UTC45m
2026-07-21 SWA223 SJC → LAS Jul 21, 07:25 UTCJul 21, 08:20 UTC55m
2026-07-21 SWA3674 CMH → TPA Jul 21, 02:25 UTCJul 21, 04:45 UTC2h 20m
2026-07-20 SWA2609 BWI → ALB Jul 20, 23:05 UTCJul 21, 00:40 UTC1h 34m
2026-07-20 SWA2609 BWI → ALB Jul 20, 23:05 UTCJul 21, 00:35 UTC1h 30m
2026-07-20 SWA1307 SNA → PHX Jul 20, 20:40 UTCJul 20, 22:10 UTC1h 30m
2026-07-20 SWA4759 STL → ECP Jul 20, 18:25 UTCJul 20, 19:30 UTC1h 5m
2026-07-20 SWA4759 STL → ECP Jul 20, 18:20 UTCJul 20, 19:26 UTC1h 6m

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 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 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.