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sensors Mode-S transponder

ABF3B8

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8698B · BOEING 737-800 · operated by SOUTHWEST AIRLINES CO

Hex
ABF3B8
Octal
52771670
Decimal
11,269,048
Country
US
Tail
N8698B
Type
B738
Broadcasting now · callsign SWA4591 · 40,000 ft
Flights observed
624
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Current position

ABF3B8 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address ABF3B8 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
SWA677 - 5 2026-07-02
SWA471 - 5 2026-06-27
SWA3524 Southwest Airlines 5 2026-05-04
SWA1266 Southwest Airlines 5 2026-05-06
SWA551 Southwest Airlines 4 2026-05-04
SWA4539 - 4 2026-06-16
SWA3452 Southwest Airlines 4 2026-06-01
SWA3198 - 4 2026-07-04
SWA2392 - 4 2026-06-29
SWA2124 Southwest Airlines 4 2026-06-07
SWA2064 Southwest Airlines 4 2026-06-01
SWA527 Southwest Airlines 3 2026-06-14
SWA4050 - 3 2026-06-17
SWA3844 Southwest Airlines 3 2026-06-10
SWA3668 - 3 2026-06-26
SWA3464 Southwest Airlines 3 2026-04-18
SWA3403 Southwest Airlines 3 2026-05-23
SWA3254 - 3 2026-07-08
SWA3231 - 3 2026-07-10
SWA3200 Southwest Airlines 3 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 SWA172 - Jul 13, 23:10 UTCJul 14, 01:10 UTC2h 0m
2026-07-13 SWA1960 - Jul 13, 19:20 UTCJul 13, 22:10 UTC2h 50m
2026-07-13 SWA3174 - Jul 13, 14:15 UTCJul 13, 17:35 UTC3h 20m
2026-07-13 SWA984 - Jul 13, 10:50 UTCJul 13, 12:35 UTC1h 45m
2026-07-13 SWA984 BWI → MCO Jul 13, 10:46 UTCJul 13, 12:29 UTC1h 43m
2026-07-12 SWA832 - Jul 12, 21:05 UTCJul 13, 00:01 UTC2h 55m
2026-07-12 SWA832 PUJ → BWI Jul 12, 20:38 UTCJul 12, 23:58 UTC3h 20m
2026-07-12 SWA1154 - Jul 12, 15:40 UTCJul 12, 17:30 UTC1h 50m
2026-07-12 SWA1154 BNA → PUJ Jul 12, 15:37 UTCJul 12, 19:16 UTC3h 39m
2026-07-12 SWA3779 - Jul 12, 13:10 UTCJul 12, 13:55 UTC45m
2026-07-12 SWA4048 TPA → STL Jul 12, 10:01 UTCJul 12, 11:55 UTC1h 55m
2026-07-12 SWA4578 BWI → TPA Jul 12, 00:55 UTCJul 12, 02:50 UTC1h 55m
2026-07-12 SWA4578 BWI → TPA Jul 12, 00:55 UTCJul 12, 02:49 UTC1h 54m
2026-07-11 SWA810 - Jul 11, 18:50 UTCJul 11, 22:50 UTC4h 0m
2026-07-11 SWA810 LIR → BWI Jul 11, 18:31 UTCJul 11, 22:51 UTC4h 21m
2026-07-11 SWA809 - Jul 11, 13:15 UTCJul 11, 16:50 UTC3h 35m
2026-07-11 SWA809 BWI → LIR Jul 11, 13:14 UTCJul 11, 17:15 UTC4h 1m
2026-07-11 SWA2113 - Jul 11, 09:45 UTCJul 11, 10:55 UTC1h 10m
2026-07-11 SWA4216 - Jul 11, 02:30 UTCJul 11, 03:45 UTC1h 15m
2026-07-11 SWA4216 BWI → IND Jul 11, 02:27 UTCJul 11, 03:43 UTC1h 16m
2026-07-10 SWA2159 - Jul 10, 23:50 UTCJul 11, 01:20 UTC1h 30m
2026-07-10 SWA2159 JAX → BWI Jul 10, 23:48 UTCJul 11, 01:21 UTC1h 34m
2026-07-10 SWA4384 - Jul 10, 20:10 UTCJul 10, 22:55 UTC2h 45m
2026-07-10 SWA9001 - Jul 10, 17:05 UTCJul 10, 18:55 UTC1h 50m
2026-07-10 SWA3824 - Jul 10, 12:50 UTCJul 10, 15:30 UTC2h 40m
2026-07-10 SWA3824 HOU → SAN Jul 10, 12:48 UTCJul 10, 15:27 UTC2h 40m
2026-07-10 SWA4645 - Jul 10, 09:25 UTCJul 10, 11:40 UTC2h 15m
2026-07-10 SWA3231 - Jul 10, 03:05 UTCJul 10, 06:05 UTC3h 0m
2026-07-10 SWA3231 PHX → IND Jul 10, 03:04 UTCJul 10, 06:04 UTC3h 0m
2026-07-10 SWA3231 - Jul 10, 00:15 UTCJul 10, 01:45 UTC1h 30m
2026-07-09 SWA2709 MCO → SMF Jul 9, 18:05 UTCJul 9, 23:10 UTC5h 5m
2026-07-09 SWA162 - Jul 9, 14:20 UTCJul 9, 16:55 UTC2h 35m
2026-07-09 SWA4863 MCO → ALB Jul 9, 10:45 UTCJul 9, 13:10 UTC2h 25m
2026-07-09 SWA3950 STL → MCO Jul 9, 01:25 UTCJul 9, 03:45 UTC2h 20m
2026-07-08 SWA3353 PHX → STL Jul 8, 21:00 UTCJul 8, 23:45 UTC2h 45m
2026-07-08 SWA1381 - Jul 8, 17:35 UTCJul 8, 19:35 UTC2h 0m
2026-07-08 SWA1381 DAL → PHX Jul 8, 17:35 UTCJul 8, 19:31 UTC1h 57m
2026-07-08 SWA3254 - Jul 8, 14:30 UTCJul 8, 16:30 UTC2h 0m
2026-07-08 SWA3254 PHX → DAL Jul 8, 14:29 UTCJul 8, 16:30 UTC2h 2m
2026-07-08 SWA3254 - Jul 8, 11:45 UTCJul 8, 13:20 UTC1h 35m
2026-07-08 SWA3762 - Jul 8, 04:15 UTCJul 8, 05:15 UTC1h 0m
2026-07-07 SWA3361 BNA → SMF Jul 7, 23:15 UTCJul 8, 03:15 UTC4h 0m
2026-07-07 SWA879 - Jul 7, 20:20 UTCJul 7, 21:55 UTC1h 35m
2026-07-07 SWA256 - Jul 7, 17:00 UTCJul 7, 18:55 UTC1h 55m
2026-07-07 SWA4653 - Jul 7, 13:20 UTCJul 7, 15:55 UTC2h 35m
2026-07-07 SWA4653 MDW → SRQ Jul 7, 13:19 UTCJul 7, 15:35 UTC2h 16m
2026-07-07 SWA1008 - Jul 7, 10:45 UTCJul 7, 11:30 UTC45m
2026-07-07 SWA1756 DEN → STL Jul 7, 03:35 UTCJul 7, 05:10 UTC1h 35m
2026-07-07 SWA1756 DEN → STL Jul 7, 03:35 UTCJul 7, 05:20 UTC1h 45m
2026-07-06 SWA2632 ONT → DEN Jul 6, 22:45 UTCJul 7, 02:05 UTC3h 20m

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 N8698B page for operator, model, and routing details .

Mode-S ABF3B8 frequently asked

What is Mode-S code ABF3B8?
ABF3B8 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8698B.
Where is Mode-S ABF3B8 registered?
Mode-S code ABF3B8 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 ABF3B8 broadcasting right now?
Yes. Mode-S ABF3B8 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABF3B8, octal 52771670, decimal 11,269,048.
What flights does ABF3B8 operate?
Mode-S ABF3B8 has broadcast 20 distinct callsigns, including SWA677, SWA471, SWA3524, SWA1266, SWA551.