Scam Detective

Scam Campaign

Government Impersonation Scam — 877-437-3891

Identified on 4/18/2026

Primary Entity

phone

8774373891
Suspicious
  • 4 FTC complaints filed against this number
  • 7 community reports from users
  • Most reports: Calls pretending to be government, businesses, or family and friends

Campaign Narrative

This scam campaign involves a coordinated network of three toll-free phone numbers operating under the guise of a "tax relief and mediation agency." The primary number, 877-437-3891, has generated 4 FTC complaints categorized as "Calls pretending to be government, businesses, or family and friends." This number is connected to two additional numbers, 866-921-2310 and 877-723-0437, through reported_together relationships with 0.35 confidence scores, indicating these numbers are being used in conjunction as part of the same fraudulent operation.

The scammers employ a systematic approach using a fictional representative named "Olivia Markham" who claims to work for the "client resolution department of a tax relief and mediation agency." Community reports reveal that the fraudsters use multiple numbers to create an impression of legitimacy, with 866-921-2310 serving as the initial contact point that then directs victims to call back the primary number 877-437-3891. The voicemails left by "Olivia Markham" reference specific dates like "Tuesday, December 16th" to create urgency and authenticity. The Better Business Bureau has classified this operation under their "Tax Collection" scam type.

Geographically, the campaign has targeted consumers across multiple states, with confirmed complaints from Green Cove Springs, Florida, Greenwood, Indiana, and Highland Park, Illinois. Additional community reports indicate activity in Maryland, suggesting a broad geographic scope rather than focused regional targeting. The use of toll-free numbers allows the scammers to operate nationally while masking their actual location.

To protect yourself from this tax relief scam, verify any tax-related communications by contacting the IRS directly at 800-829-1040 or visiting irs.gov. Legitimate tax agencies will typically communicate through official mail, not unsolicited phone calls demanding immediate action. If you receive calls from these numbers or similar tax relief schemes, do not provide personal information, hang up immediately, and do not click any links they may send. Report these incidents to the FTC at reportfraud.ftc.gov or file complaints with the FCC. You can check if a phone number has been reported as fraudulent by searching consumer protection databases and community reporting sites before returning any calls.

This campaign represents a moderate threat level due to its use of multiple coordinated phone numbers and impersonation of tax relief services, which can be particularly effective during tax season. Consumers should remain vigilant for calls from any numbers claiming to offer tax relief services and remember that legitimate tax professionals do not typically use high-pressure tactics or demand immediate callback responses. The next recommended step is continued monitoring of these numbers for additional complaints and expanded reporting to relevant authorities to help shut down this operation.

Entity Roster

Phone Numbers (3)

Data Sources

Scam Prevention Resources

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