Scam Calls from Area Code 628

Area code 628, which covers San Francisco and the broader Bay Area including San Carlos, Piedmont, San Jose, and Mill Valley, has generated 447 complaints across 190 numbers since February 2026, with activity ongoing through June. That volume places it 290th out of 357 area codes overall, but 35th out of 43 among California codes, making it a mid-tier source within its own state rather than a national outlier.

Debt-reduction solicitations dominate the complaint picture, accounting for 85 of the categorized complaints. Two numbers drive that category: 628-251-2860 has drawn 20 complaints specifically for debt-reduction calls, and 628-208-7621 another 5. Impersonation calls claiming to represent government agencies, businesses, or personal contacts rank second at 48 complaints, with 628-203-8907 pulling 4 of those. Dropped calls or no-message contacts account for 42 additional complaints, a pattern consistent with predictive-dialer sweeps probing for live pickups.

The single highest-complaint number in the code, 628-208-7667, has accumulated 29 complaints with no dominant category attached to it. Two other numbers, 628-241-4293 and 628-208-7620, carry 7 complaints each under the same circumstances. Together these three numbers represent a bloc of 43 complaints that does not fit the code's named scam categories, suggesting either a distinct campaign not yet classified or deliberate variation in pitch to avoid pattern recognition.

Energy, solar, and utilities solicitations appear through 628-261-7841, which has 6 complaints, and the category totals 8 complaints across the code. Computer and technical support scams add another 8. While neither category dominates, their presence alongside debt and impersonation calls indicates that 628 numbers are being rotated across multiple campaign types rather than concentrating in a single fraud vertical.

The live-call mode count of 212 against only 3 prerecorded contacts points to an operation relying heavily on live agents, which typically correlates with higher-pressure conversion tactics and longer call durations. With complaints still arriving as of June 2026 and the number pool spread across 190 distinct lines, the threat profile here is one of sustained, diversified outbound dialing anchored in the San Francisco metro but reaching complainants as far as Texas and Florida.