Federal Poverty Guidelines Median Family Income Guidelines National Do Not Call Registry: The National Do Not Call Registry gives you a choice about whether to receive telemarketing calls at home. Most telemarketers should not call your number once it has been on the registry for 31 days. If they do, you can file a complaint. You can register your home or mobile phone for free. Recalls.gov: To provide better service in alerting the American people to unsafe, hazardous, or defective products, six federal agencies with vastly different jurisdictions have joined together to create www.recalls.gov — a “one stop shop” for U.S. Government recalls.