Area code 831

Largest exchanges

• Salinas84
• Santa Cruz76
• Monterey64
• Watsonvl30
• Hollister22
• Aptos19
• Carmel12
• Ben Lomond11
• Felton9
• Bouldercrk9

Largest carriers

• Pacific Bell124
• New Cingular Wireless Pcs, LLC35
• Onvoy, LLC - CA31
• Cellco Partnership dba Verizon Wireless - CA30
• Level 3 Communications, LLC - CA26
• IP Horizon LLC14
• T-mobile Usa, Inc.13
• Metropcs, Inc.13
• U.s. Telepacific Corp. dba Tpx Communications11
• Bandwidth.com Clec, LLC - CA11

Most reported 831 numbers

No visitor reports yet in this area code.

FCC complaints

• 831-215-86651 · 2026-10-03