The U.S. communications regulator on Tuesday proposed a $225 million fine, its largest ever, against two health insurance telemarketers for spamming people with 1 billion robocalls using fake phone numbers. The Federal Communications Commission said John Spiller and Jakob Mears made the calls through two businesses. The FCC said the robocalls offered plans from major insurers like Aetna and UnitedHealth with an automated message. The telemarketers faked their calls to make them appear they came from other companies, which then received angry calls and were named in lawsuits from consumers. He declined to provide contact information for Mears and said neither would speak before talking to an attorney.