Stop SIM Box Scams Act

The Stop SIM Box Scams Act amends the Communications Act of 1934 to prohibit activities related to SIM boxes, which are devices or systems used to pool multiple SIMs to obscure call origins or bypass carrier controls. It bans manufacturing, selling, using, or assisting with SIM boxes, and requires the Federal Communications Commission (FCC) to implement rules, coordinate with other agencies, and report annually on enforcement.

Sec. 2, SIM boxes: This section adds a new prohibition on making, importing, selling, leasing, advertising, possessing, using, or distributing any SIM box, or modifying other devices to function as one, or knowingly allowing such activities on one's property. The ban takes effect 180 days after enactment. The FCC must issue regulations within 180 days, including clarifying the definition of SIM box, publishing lists of prohibited and permissible items, and setting up procedures for manufacturers to prove exclusions. The FCC must coordinate with Homeland Security, Customs, the Attorney General, and the FTC on enforcement and training.

Enforcement: Each SIM box or day of violation can be treated as a separate violation. The FCC can issue temporary cease-and-desist orders for up to 180 days. Mobile service providers injured by violations can sue in federal court for injunctions or damages, and courts may award attorney's fees.

Safe harbor: Mobile service providers are protected from lawsuits for good-faith actions to detect or disrupt SIM boxes, such as monitoring networks or sharing information with authorities, unless the actions are unrelated, involve misuse of data, or constitute willful misconduct. This does not create a duty to monitor.

Definitions: A SIM box is any device or system that enables automated use of two or more SIMs to route communications and is designed to obscure call origin or bypass carrier controls. Exclusions include FCC-authorized devices, government use, lab testing, and carrier internal testing.

Other provisions: The FCC can seize items used in SIM box violations. Customer information can be shared with federal agencies for SIM box enforcement. The Act does not limit other FCC authorities on caller ID, robocalls, fraud, or public safety. States cannot enforce laws that conflict with this Act but may impose stricter SIM box limits. If any part of the Act is invalid, the rest remains in effect.