The Federal Communications Commission has taken decisive action against Belthrough LLC, a voice service provider, by effectively prohibiting it from connecting to U.S. telephone networks. This measure stems from the company’s repeated failure to comply with the FCC’s established rules designed to combat illegal robocalls. This is just one more move in the FCC’s initiative to crack down on robocallers.
The FCC has mandated that all U.S. voice service providers and intermediate providers block incoming calls originating from Belthrough LLC. This blocking requirement applies due to violations of robocall mitigation obligations. Additionally, the Commission has removed Belthrough from its Robocall Mitigation Database, a key registry that tracks providers’ efforts to reduce unwanted automated calls. Providers immediately downstream from Belthrough must halt acceptance of all non-emergency traffic from the company within 48 hours. Full compliance with the FCC’s broader call-blocking protocols regarding Belthrough must occur within 30 days.
This enforcement step underscores the agency’s ongoing commitment to addressing the persistent problem of illegal robocalls, which continue to frustrate and defraud consumers nationwide. Chairman Brendan Carr has emphasized that disrupting access for non-compliant entities remains a core strategy in the fight against these unwanted communications. The FCC continues to deploy every available tool to isolate and eliminate bad actors from the nation’s communications infrastructure.
The Robocall Mitigation Database plays a central role in these efforts. Established to foster greater transparency and accountability, the database requires providers to detail their strategies for mitigating robocalls and to implement STIR/SHAKEN caller ID authentication technology across IP-based network segments. Providers must submit certification confirming adherence to these standards along with comprehensive mitigation plans. Non-compliance triggers consequences such as database removal and subsequent traffic blocking, preventing further transmission of potentially harmful calls through U.S. networks.
Investigations leading to this action trace back to incidents in 2024 and 2025. During that period, the Industry Traceback Group examined numerous prerecorded voice messages sent without recipient consent. These calls impersonated legitimate Internet Service Providers, a common tactic used in scams to deceive consumers into providing personal information or payments. Traceback efforts identified Belthrough as both the originator of some calls and the gateway provider for others. The group notified Belthrough of the findings and supplied supporting data on the specific calls involved.
The current enforcement builds on prior notifications from the FCC’s Enforcement Bureau. On September 10, 2025, the Bureau issued a formal notice highlighting suspected illegal traffic linked to Belthrough. This was followed by an Initial Determination Order and Order to Show Cause on February 19, 2026, outlining apparent violations and demanding a response. Belthrough acknowledged receipt of the initial notice but otherwise failed to engage or take corrective measures in response to either document.
As a result of this inaction, Belthrough faces permanent removal from the Robocall Mitigation Database. The company will not regain entry without explicit prior approval from both the Enforcement Bureau and the Wireline Competition Bureau. This restriction effectively severs Belthrough’s ability to route voice traffic into the U.S. system under current regulations.
The decision reflects broader FCC initiatives to strengthen robocall protections amid rising consumer complaints and scam losses. By targeting gateway and originating providers that enable illegal traffic, the agency aims to disrupt the infrastructure supporting fraudulent operations. Such actions complement other measures, including expanded authentication requirements, traceback processes, and collaborative efforts with industry groups to identify and isolate violators.
Consumers benefit from these steps through reduced exposure to deceptive calls that exploit trust in familiar brands or services. The FCC’s consistent enforcement demonstrates a sustained priority on safeguarding the integrity of voice communications and holding non-compliant providers accountable. As robocall volumes fluctuate but remain a significant issue, targeted interventions like this one help shrink the pathways available to bad actors and reinforce network-level defenses against unwanted intrusions.
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