What are AMX Securities? For purposes of these Guidelines, “AMX Securities”
include: any shares of stock, equity interests, debentures, warrants, bonds, promissory notes, bills of exchange and any other credit instruments nominated or in nominated, issued by AMX, which are registered with the National Registry of
Securities (Registro Nacional de Valores, or “RNV”) kept by Mexico’s National Banking and Securities Commission (Comisión Nacional Bancaria y de Valores, or “CNBV”); deposit certificates otherwise known as American Depositary Receipts
(“ADRs”), and any other similar instrument issued outside of Mexico in respect of any of the securities identified in item (i) above; and financial derivative instruments whose underlying assets are any of the securities identified in item (i)
above. Who are Corporate Insiders and Sensitive Individuals? Corporate Insiders For purposes of the Mexican Securities Market Law and these Guidelines, “Corporate Insiders” are the directors, secretary and prosecretary of the board of
directors, independent auditor, chief executive or other officer, and employees of AMX and its subsidiaries, and all individuals related to any of the above. The Mexican Securities Market Law presumes not only that individuals directly linked
to AMX and/or its subsidiaries may have access to Material Non-Public Information, but also that their spouses, partners, or any other individual with whom they maintain a kinship, personal, business or with whom such individuals might have any
type of contact, may have access to Material Non-Public Information, and, accordingly, are subject to the obligations and penalties —including criminal penalties— set forth in the securities laws of Mexico and those foreign jurisdictions in
which the AMX Securities are listed for trading. Sensitive Individuals “Sensitive Individuals” are those Corporate Insiders who by reason of their duties have increased access to Material Non-Public, Confidential and/or Sensitive Market
Information relating to AMX and/or its subsidiaries and, accordingly, are subject to more stringent restrictions when trading in AMX Securities. Download forms: » Exhibit 1 (Spanish only) http://www.americamovil.com/
amx/es/cm/filings/a1.pdf » Exhibit 2 (Spanish only) http://www.americamovil.com/ amx/es/cm/filings/a2.pdf » Exhibit 3 (Spanish only) http://www.americamovil.com/ amx/es/cm/filings/a3.pdf