Apparatus

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sensors Mode-S transponder

A2E646

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N286WN · BOEING 737-700 · operated by SOUTHWEST AIRLINES CO

Hex
A2E646
Octal
50563106
Decimal
10,675,782
Country
US
Tail
N286WN
Type
B737
Broadcasting now · callsign SWA419 · 18,975 ft
Flights observed
569
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:25 UTC

Current position

A2E646 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A2E646 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
SWA3810 Southwest Airlines 7 2026-05-03
SWA1095 Southwest Airlines 6 2026-04-16
SWA428 Southwest Airlines 5 2026-04-24
SWA500 - 4 2026-07-18
SWA4582 - 4 2026-07-12
SWA3821 - 4 2026-07-14
SWA3791 Southwest Airlines 4 2026-04-29
SWA3589 Southwest Airlines 4 2026-05-08
SWA3335 - 4 2026-04-13
SWA3312 Southwest Airlines 4 2026-04-15
SWA322 Southwest Airlines 4 2026-05-03
SWA3073 Southwest Airlines 4 2026-04-14
SWA285 Southwest Airlines 4 2026-06-12
SWA2837 - 4 2026-07-14
SWA2644 Southwest Airlines 4 2026-05-11
SWA983 Southwest Airlines 3 2026-05-09
SWA982 - 3 2026-06-24
SWA914 - 3 2026-07-17
SWA820 Southwest Airlines 3 2026-05-09
SWA777 Southwest Airlines 3 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA2551 BOS → MDW Jul 26, 20:05 UTCJul 26, 21:25 UTC1h 20m
2026-07-26 SWA3136 PSP → OAK Jul 26, 17:50 UTCJul 26, 18:55 UTC1h 5m
2026-07-26 SWA3136 PSP → OAK Jul 26, 17:49 UTCJul 26, 18:52 UTC1h 3m
2026-07-26 SWA2885 OAK → LAS Jul 26, 15:05 UTCJul 26, 16:35 UTC1h 30m
2026-07-25 SWA4805 MCO → BDL Jul 25, 21:15 UTCJul 25, 23:00 UTC1h 45m
2026-07-25 SWA3540 STL → SJC Jul 25, 18:50 UTCJul 25, 20:05 UTC1h 15m
2026-07-25 SWA3540 STL → SJC Jul 25, 18:46 UTCJul 25, 20:05 UTC1h 19m
2026-07-25 SWA2314 MDW → PIT Jul 25, 03:55 UTCJul 25, 04:40 UTC45m
2026-07-25 SWA2314 MDW → PIT Jul 25, 03:49 UTCJul 25, 04:37 UTC49m
2026-07-24 SWA4732 BWI → CLE Jul 24, 23:45 UTCJul 25, 01:40 UTC1h 55m
2026-07-24 SWA422 DAL → DEN Jul 24, 21:20 UTCJul 24, 22:25 UTC1h 5m
2026-07-24 SWA422 DAL → DEN Jul 24, 21:19 UTCJul 24, 22:21 UTC1h 2m
2026-07-24 SWA265 LAS → OKC Jul 24, 19:30 UTCJul 24, 20:25 UTC55m
2026-07-24 SWA1738 LGB → SJC Jul 24, 17:20 UTCJul 24, 18:20 UTC1h 0m
2026-07-24 SWA1738 LGB → SJC Jul 24, 14:15 UTCJul 24, 16:15 UTC2h 0m
2026-07-24 SWA3737 LAS → TPA Jul 24, 11:45 UTCJul 24, 12:45 UTC1h 0m
2026-07-24 SWA3828 SNA → OAK Jul 24, 02:40 UTCJul 24, 03:55 UTC1h 15m
2026-07-24 SWA3828 SNA → OAK Jul 24, 02:40 UTCJul 24, 03:53 UTC1h 13m
2026-07-23 SWA406 DAL → LAS Jul 23, 22:45 UTCJul 24, 01:55 UTC3h 10m
2026-07-23 SWA150 AMA → AUS Jul 23, 15:35 UTCJul 23, 21:00 UTC5h 25m
2026-07-23 SWA3784 DEN → ELP Jul 23, 12:41 UTCJul 23, 13:41 UTC1h 0m
2026-07-23 SWA3784 DEN → ELP Jul 23, 12:45 UTCJul 23, 13:45 UTC1h 0m
2026-07-23 SWA1651 MCI → LGA Jul 23, 05:05 UTCJul 23, 06:05 UTC1h 0m
2026-07-23 SWA1651 MCI → LGA Jul 23, 05:01 UTCJul 23, 06:04 UTC1h 3m
2026-07-22 SWA1651 MCI → LGA Jul 22, 23:30 UTCJul 23, 04:10 UTC4h 40m
2026-07-22 SWA1124 BOS → MDW Jul 22, 18:20 UTCJul 22, 20:05 UTC1h 45m
2026-07-22 SWA4712 ALB → BWI Jul 22, 15:40 UTCJul 22, 17:10 UTC1h 30m
2026-07-22 SWA4051 TPA → GRR Jul 22, 12:35 UTCJul 22, 13:50 UTC1h 15m
2026-07-22 SWA490 LAX → OAK Jul 22, 03:25 UTCJul 22, 04:00 UTC35m
2026-07-22 SWA490 LAX → OAK Jul 22, 00:50 UTCJul 22, 02:15 UTC1h 25m
2026-07-21 SWA3965 ORD → DEN Jul 21, 21:50 UTCJul 21, 23:25 UTC1h 35m
2026-07-21 SWA3965 ORD → DEN Jul 21, 21:49 UTCJul 21, 23:22 UTC1h 33m
2026-07-21 SWA881 SJD → HOU Jul 21, 14:15 UTCJul 21, 19:50 UTC5h 35m
2026-07-20 SWA2460 DEN → OKC Jul 20, 22:10 UTCJul 21, 01:15 UTC3h 4m
2026-07-20 SWA2294 CBF → LGA Jul 20, 18:20 UTCJul 20, 20:40 UTC2h 20m
2026-07-20 SWA2294 - Jul 20, 15:10 UTCJul 20, 17:25 UTC2h 15m
2026-07-20 SWA3313 - Jul 20, 12:20 UTCJul 20, 13:45 UTC1h 25m
2026-07-20 SWA3313 COS → LAS Jul 20, 12:16 UTCJul 20, 13:39 UTC1h 24m
2026-07-20 SWA1767 - Jul 20, 05:20 UTCJul 20, 06:40 UTC1h 20m
2026-07-20 SWA1534 LAX → MDW Jul 20, 01:05 UTCJul 20, 04:30 UTC3h 25m
2026-07-20 SWA1534 LAX → MDW Jul 20, 01:02 UTCJul 20, 04:23 UTC3h 22m
2026-07-19 SWA3744 - Jul 19, 22:05 UTCJul 20, 00:00 UTC1h 55m
2026-07-19 SWA3744 SAN → PDX Jul 19, 22:04 UTCJul 20, 00:00 UTC1h 56m
2026-07-19 SWA3744 PHX → SAN Jul 19, 19:55 UTCJul 19, 20:40 UTC45m
2026-07-19 SWA2311 LAS → PHX Jul 19, 18:15 UTCJul 19, 19:00 UTC45m
2026-07-19 SWA2311 OAK → LAS Jul 19, 15:55 UTCJul 19, 17:05 UTC1h 10m
2026-07-19 SWA4947 LGB → OAK Jul 19, 14:05 UTCJul 19, 15:00 UTC55m
2026-07-19 SWA4716 LAS → LGB Jul 19, 03:10 UTCJul 19, 03:50 UTC40m
2026-07-19 SWA1279 BWI → BUF Jul 19, 01:10 UTCJul 19, 02:10 UTC1h 0m
2026-07-19 SWA1279 BWI → BUF Jul 19, 01:06 UTCJul 19, 02:06 UTC1h 1m

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 N286WN page for operator, model, and routing details .

Mode-S A2E646 frequently asked

What is Mode-S code A2E646?
A2E646 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N286WN.
Where is Mode-S A2E646 registered?
Mode-S code A2E646 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 A2E646 broadcasting right now?
Yes. Mode-S A2E646 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A2E646, octal 50563106, decimal 10,675,782.
What flights does A2E646 operate?
Mode-S A2E646 has broadcast 20 distinct callsigns, including SWA3810, SWA1095, SWA428, SWA500, SWA4582.