Area code 408

Largest exchanges

• Snjs West321
• Snjs North139
• Sunnyvale96
• Snjs South84
• Campbell43
• Los Gatos24
• Morganhill19
• Gilroy16
• San Martin15
• Saratoga15

Largest carriers

• Pacific Bell328
• New Cingular Wireless Pcs, LLC70
• Cellco Partnership dba Verizon Wireless - CA65
• T-mobile Usa, Inc.42
• Mcimetro Access Transmission Services LLC39
• Onvoy, LLC - CA35
• Level 3 Communications, LLC - CA31
• Spok, Inc.27
• Teleport Communications America, LLC - CA21
• Bandwidth.com Clec, LLC - CA20

Most reported 408 numbers

No visitor reports yet in this area code.

FCC complaints

• 408-372-22402 · 2026-10-07
• 408-766-03392 · 2026-10-02
• 408-256-78011 · 2026-10-07
• 408-372-24921 · 2026-10-07
• 408-740-21881 · 2026-10-06
• 408-372-17301 · 2026-10-05