In late 2025, a bipartisan coalition of 51 Attorneys General (representing all 50 states and the District of Columbia) joined forces under the Anti-Robocall Litigation Task Force. Their mission: Operation Robocall Roundup.
Unlike previous efforts that focused on catching individual “bad actors” making the calls, this operation targets the Voice over Internet Protocol (VoIP) providers—the digital “gatekeepers” that allow billions of illegal calls to enter the U.S. telephone network.
The Targeted Numbers
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37 Voice Providers: These companies received direct warning letters demanding they cease routing illegal traffic immediately.
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99 Downstream Providers: Nearly 100 other companies were notified that they are doing business with “bad actors,” effectively putting the entire industry on notice.
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Millions of Fraudulent Calls: The task force identified specific campaigns ranging from Social Security imposters to fake utility disconnections.
Why These Warning Letters Matter
The attorneys general robocall warning letters serve a specific legal purpose: they remove the “I didn’t know” defense. By officially notifying these companies that their networks are being used for illegal activity, AGs create a paper trail that leads directly to massive civil penalties and permanent shutdowns.
The Criteria for Being Targeted
The Task Force and the FCC are looking for three specific failures in a telecom company’s operations:
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Failure to Respond to Tracebacks: When a scam call is reported, investigators “trace back” the origin. Companies that ignore these requests are now in the crosshairs.
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Missing FCC Registration: Providers must register in the Robocall Mitigation Database. Many of the warned companies failed this basic compliance step.
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Lack of Mitigation Plans: If a company doesn’t have a public plan explaining how it blocks illegal calls, it is considered a facilitator of fraud.
Phase 2: Going After the “Big Fish”
While the initial August 2025 rollout targeted smaller VoIP hubs, December 2025 saw the launch of Phase 2. This expansion, led by heavy hitters like Oklahoma Attorney General Gentner Drummond, turned the spotlight on some of the largest voice providers in the country.
| Provider | Traceback Notices Since 2019 | Estimated Imposter Calls |
| Inteliquent | 9,700+ | 1.4 Billion+ |
| Lumen | 7,200+ | 880 Million+ |
| Peerless | 5,600+ | 580 Million+ |
| Bandwidth | 3,000+ | 300 Million+ |
These letters are more than just “warnings”—they are precursors to litigation. If these major providers do not clean up their traffic within 35 days, they face the risk of being stripped of their right to operate on the U.S. network.
The Common Scams Highlighted in the Letters
The AGs aren’t just complaining about “annoyance.” These warning letters specifically call out life-altering scams that have cost Americans over $1.2 billion in the last year alone.
1. The “Government Imposter” Scam
Scammers use the networks of the warned providers to impersonate the Social Security Administration (SSA) or the IRS. They threaten victims with arrest or the suspension of their SSN to extort money.
2. The “Business Imposter” Scam
This involves fake calls from Amazon, Apple, or Microsoft claiming a high-value purchase was made. The victim is then “transferred” to a fake agent who gains remote access to their bank accounts.
3. Utility and Medicare Scams
Targeting the elderly and vulnerable, these calls threaten to shut off electricity or claim a new “Medicare card” is required, stealing personal health information and financial data in the process.
What Happens to the Companies That Ignore the Letters?
The consequences of ignoring an attorney general robocall warning letter are severe. We are already seeing the fallout:
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The “Death Penalty” for Telecoms: The FCC has already begun removing companies from the Robocall Mitigation Database. Once removed, other providers are legally prohibited from accepting their calls, effectively killing the business.
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Multistate Lawsuits: AGs in states like Minnesota and New York have already filed suits against companies like Avid Telecom, alleging billions of illegal calls and violations of the Telephone Consumer Protection Act (TCPA).
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Civil Penalties: Fines for these violations can reach into the millions, often calculated per call found to be illegal.
Expert Advice: How to Protect Yourself
While the Attorneys General work to clean up the “pipes” of the internet, you are the final line of defense.
Pro Tip: Treat your phone like a front door. If you don’t recognize the person knocking (or calling), don’t open it.
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Don’t Engage: Even pressing “1” to speak to an agent or “2” to opt-out confirms your number is active, making you a target for more calls.
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Report Everything: Use your state’s Attorney General website or the National Do Not Call Registry to report scam numbers. These reports are the primary data used to generate the warning letters.
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Use Carrier Tools: Most major carriers (Verizon, AT&T, T-Mobile) offer free “Call Filter” or “Scam Shield” apps. Ensure these are active.
Final Thoughts
The attorneys general robocall warning letters represent a turning point in consumer protection. By shifting the burden of proof onto the telecom companies, the legal system is finally holding the “middlemen” accountable for the crimes they facilitate.
At Legal Coat, we stay on top of these daily updates to ensure you have the latest information on how state leaders are fighting for your digital privacy.
Would you like me to help you draft a formal complaint to your State Attorney General regarding a specific scam call you received?
Complete List: The 37 Targeted Voice Providers
The following companies received official attorneys general robocall warning letters for failing to comply with FCC traceback requests, lacking proper registration, or missing robocall mitigation plans.
The “Watch List”
- Advantage Investors LLC
- Alpha Stream
- Ananya Traders LLC
- Ariyan Khan
- BBT Voice Private Limited
- Belthrough
- BPO VoIP
- Collection 3 LLC
- Communications and Telephone Systems Co.
- Dial Vista Corp.
- DigitalOcean, LLC
- Dtel Network LLC
- End Zone Financial Services
- EON Telecom Inc.
- Family Communication Inc.
- Fiber Flux VOIP
- First Tele Communications Inc.
- Flow VOIP LLC
- Globe Tech Solutions
- Higher Response Marketing, Inc.
- HK KwaiFong Group Limited
- Infinity SIP LLC
- Lexico Telecom LTD