Scam Calls from Area Code 551

Area code 551, assigned to northern New Jersey and anchored by communities including Clifton, Wayne, Bloomfield, and Boonton, has generated 1,054 complaints across 423 distinct numbers since February 2026, with activity continuing through June. Among the 39 New Jersey-assigned area codes tracked, 551 ranks 17th in complaint volume, a mid-tier position that nonetheless reflects a steady and broad-based operation rather than a single concentrated campaign.

The largest complaint category is dropped calls or no-message contacts, accounting for 129 complaints. This pattern typically signals robocall probing, where automated systems confirm live lines before routing to human agents. That interpretation is consistent with the FCC call-mode breakdown: 114 complaints involved live callers and 70 involved prerecorded messages, suggesting these numbers feed into active call centers rather than fully automated pipelines. Debt-reduction pitches targeting credit cards, mortgages, and student loans account for 105 complaints, and impersonation of government agencies, businesses, or personal contacts adds another 97, making those two categories the dominant substantive complaint drivers.

Energy, solar, and utilities solicitations account for 61 complaints, and medical and prescription-related calls add 31 more. The prescription category is the only one directly tied to a top-ranked individual number: 551-351-8610, which drew 9 complaints on its own. The remaining high-complaint numbers, led by 551-353-9700 with 16 complaints and 551-220-9844 with 14, account for their totals without an assigned category in the complaint data.

Complaints against 551 have also been filed by residents of California and New York, confirming that the geographic reach of these calls extends well beyond New Jersey despite the local area code presentation. Eleven FCC records are on file for the code. The combination of impersonation volume, live-agent deployment, and multi-state reach points to organized operations using 551 numbers as a presentable local facade, a tactic that tends to sustain higher answer rates and, by extension, higher exposure for targeted households.