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sensors Mode-S transponder

ABFCDA

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8713M · BOEING 737 MAX 8 · operated by SOUTHWEST AIRLINES CO

Hex
ABFCDA
Octal
52776332
Decimal
11,271,386
Country
US
Tail
N8713M
Type
B38M
No current signal · last broadcast Jul 24, 17:25 UTC
Flights observed
660
Distinct callsigns
20
Country
US
Last broadcast
Jul 24, 17:25 UTC

Last known position

Most recent position reported by Mode-S ABFCDA.

Country allocation

The ICAO 24-bit address ABFCDA 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
SWA900 - 8 2026-07-13
SWA4681 Southwest Airlines 5 2026-05-25
SWA2637 - 5 2026-07-12
SWA2525 Southwest Airlines 5 2026-06-02
SWA2209 Southwest Airlines 5 2026-04-16
SWA512 - 4 2026-06-18
SWA419 Southwest Airlines 4 2026-04-20
SWA3649 Southwest Airlines 4 2026-04-17
SWA946 Southwest Airlines 3 2026-05-23
SWA9000 Southwest Airlines 3 2026-06-14
SWA869 - 3 2026-07-16
SWA732 Southwest Airlines 3 2026-04-27
SWA676 - 3 2026-07-06
SWA675 Southwest Airlines 3 2026-06-14
SWA483 - 3 2026-07-13
SWA4420 - 3 2026-07-10
SWA437 Southwest Airlines 3 2026-07-23
SWA3976 - 3 2026-07-19
SWA3953 Southwest Airlines 3 2026-06-09
SWA3860 Southwest Airlines 3 2026-05-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 SWA8537 DCA → BWI Jul 24, 15:10 UTCJul 24, 17:25 UTC2h 15m
2026-07-24 SWA2026 BWI → FLL Jul 24, 03:05 UTCJul 24, 05:00 UTC1h 55m
2026-07-24 SWA2026 BWI → FLL Jul 24, 03:04 UTCJul 24, 05:08 UTC2h 5m
2026-07-23 SWA437 ATL → MDW Jul 23, 23:30 UTCJul 24, 02:00 UTC2h 30m
2026-07-23 SWA437 ATL → MDW Jul 23, 23:28 UTCJul 24, 01:54 UTC2h 27m
2026-07-23 SWA437 ATL → MDW Jul 23, 20:30 UTCJul 23, 21:50 UTC1h 20m
2026-07-23 SWA1543 ONT → OAK Jul 23, 17:03 UTCJul 23, 19:08 UTC2h 5m
2026-07-23 SWA1543 ONT → OAK Jul 23, 17:05 UTCJul 23, 19:05 UTC2h 0m
2026-07-23 SWA3144 - Jul 23, 13:15 UTCJul 23, 15:00 UTC1h 45m
2026-07-23 SWA449 MKE → DEN Jul 23, 05:45 UTCJul 23, 06:40 UTC55m
2026-07-23 SWA449 MKE → DEN Jul 23, 05:43 UTCJul 23, 06:38 UTC55m
2026-07-23 SWA4270 LAS → SMF Jul 23, 03:50 UTCJul 23, 04:50 UTC1h 0m
2026-07-23 SWA329 LAX → AUS Jul 23, 00:05 UTCJul 23, 02:20 UTC2h 15m
2026-07-22 SWA4956 CHS → MDW Jul 22, 18:46 UTCJul 22, 22:34 UTC3h 48m
2026-07-22 SWA4956 CHS → MDW Jul 22, 18:50 UTCJul 22, 22:35 UTC3h 45m
2026-07-22 SWA1451 SAN → SFO Jul 22, 14:55 UTCJul 22, 16:55 UTC2h 0m
2026-07-22 SWA2403 - Jul 22, 12:50 UTCJul 22, 13:35 UTC45m
2026-07-22 SWA3681 ATL → CMH Jul 22, 04:30 UTCJul 22, 05:20 UTC51m
2026-07-22 SWA3681 ATL → CMH Jul 22, 04:30 UTCJul 22, 05:25 UTC55m
2026-07-22 SWA4186 DEN → BOS Jul 22, 02:50 UTCJul 22, 03:50 UTC1h 0m
2026-07-22 SWA4186 DEN → BOS Jul 22, 02:48 UTCJul 22, 03:44 UTC56m
2026-07-22 SWA3652 MCO → MHT Jul 22, 00:45 UTCJul 22, 01:55 UTC1h 10m
2026-07-21 SWA2541 ATL → BNA Jul 21, 18:35 UTCJul 21, 23:05 UTC4h 30m
2026-07-21 SWA2188 DAL → LGA Jul 21, 14:10 UTCJul 21, 17:25 UTC3h 15m
2026-07-21 SWA139 - Jul 21, 10:40 UTCJul 21, 11:40 UTC1h 0m
2026-07-21 SWA2515 LAS → OAK Jul 21, 00:20 UTCJul 21, 00:45 UTC25m
2026-07-21 SWA2515 LAS → OAK Jul 21, 00:07 UTCJul 21, 00:40 UTC33m
2026-07-20 SWA2262 - Jul 20, 17:15 UTCJul 20, 18:30 UTC1h 15m
2026-07-20 SWA544 BNA → LAS Jul 20, 12:20 UTCJul 20, 15:30 UTC3h 10m
2026-07-20 SWA1130 OAK → ONT Jul 20, 07:05 UTCJul 20, 10:40 UTC3h 35m
2026-07-20 SWA760 LGB → SJC Jul 20, 02:45 UTCJul 20, 05:10 UTC2h 25m
2026-07-19 SWA3044 PHX → OAK Jul 19, 23:05 UTCJul 20, 01:30 UTC2h 25m
2026-07-19 SWA3976 - Jul 19, 21:00 UTCJul 19, 21:50 UTC50m
2026-07-19 SWA3976 PSP → OAK Jul 19, 20:53 UTCJul 19, 21:51 UTC58m
2026-07-19 SWA3976 - Jul 19, 19:25 UTCJul 19, 19:45 UTC20m
2026-07-19 SWA974 - Jul 19, 13:45 UTCJul 19, 18:00 UTC4h 15m
2026-07-19 SWA2385 LAS → AUS Jul 19, 05:10 UTCJul 19, 09:50 UTC4h 40m
2026-07-19 SWA3948 LGB → SJC Jul 19, 01:50 UTCJul 19, 03:15 UTC1h 25m
2026-07-19 SWA3948 LGB → SJC Jul 19, 01:46 UTCJul 19, 03:10 UTC1h 24m
2026-07-18 SWA2012 LAS → SLC Jul 18, 23:50 UTCJul 19, 00:45 UTC55m
2026-07-18 SWA2012 - Jul 18, 20:50 UTCJul 18, 22:30 UTC1h 40m
2026-07-18 SWA2012 - Jul 18, 18:30 UTCJul 18, 19:30 UTC1h 0m
2026-07-18 SWA2483 - Jul 18, 14:10 UTCJul 18, 17:00 UTC2h 50m
2026-07-18 SWA2483 LGB → HOU Jul 18, 14:09 UTCJul 18, 17:01 UTC2h 52m
2026-07-17 SWA4971 MDW → SDF Jul 17, 22:20 UTCJul 18, 03:05 UTC4h 46m
2026-07-17 SWA4527 - Jul 17, 15:20 UTCJul 17, 20:29 UTC5h 10m
2026-07-17 SWA4527 ONT → HNL Jul 17, 15:17 UTCJul 17, 20:40 UTC5h 23m
2026-07-17 SWA3692 SJC → ONT Jul 17, 03:45 UTCJul 17, 04:39 UTC55m
2026-07-17 SWA4185 SAN → SJC Jul 17, 01:35 UTCJul 17, 02:30 UTC55m
2026-07-17 SWA4185 - Jul 17, 01:39 UTCJul 17, 02:34 UTC55m

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 N8713M page for operator, model, and routing details .

Mode-S ABFCDA frequently asked

What is Mode-S code ABFCDA?
ABFCDA is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8713M.
Where is Mode-S ABFCDA registered?
Mode-S code ABFCDA 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 ABFCDA broadcasting right now?
No active broadcast right now. Last signal was Jul 24, 17:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABFCDA, octal 52776332, decimal 11,271,386.
What flights does ABFCDA operate?
Mode-S ABFCDA has broadcast 20 distinct callsigns, including SWA900, SWA4681, SWA2637, SWA2525, SWA2209.