--- title: "Mexican Business Phone Number: Required Documents" description: "Mexican business landline or mobile number: Constancia de Situación Fiscal, RFC, local address for a landline. Mobile open to foreign companies." url: https://skipcall.io/en/tools/business-phone-number-requirements/mexico language: en --- [Documents for a number abroad](https://skipcall.io/en/tools/business-phone-number-requirements) # Mexican business phone number A landline reserved for companies registered with the SAT, a mobile open to foreign companies. Local and mobile, document by document ## Required documents, local and mobile ### Mexican local number +52 · For businesses only Required address Local address, within the area code’s zone The company’s address must be in the city or region covered by the area code of the chosen number. A PO box is not accepted. To provide - Constancia de Situación FiscalDocument Issued by the SAT, the Mexican tax authority: it proves the company’s name. - Proof of address within the area code’s zoneDocument Any of: the Constancia de Situación Fiscal if it shows this address, an energy, water or telecom bill less than 12 months old, or a government letter less than 12 months old. A PO box is not accepted. ### Mexican mobile number +52 · For businesses only Required address Address anywhere in the world The company’s address can be anywhere in the world, with proof. A PO box is not accepted. To provide - Proof of the company’s existenceDocument For a Mexican company, the Constancia de Situación Fiscal, which shows the RFC. For a foreign company, its articles of incorporation or the registration document from its own country (for example the Kbis extract in France). - Proof of the company’s addressDocument Any of: an energy, water or telecom bill, or a government letter. A PO box is not accepted. - RFCTo enter The Mexican tax ID, 12 characters long for a company. A foreign company enters the generic code XEXX010101000. - Public websiteTo enter Or a verified social media account of the company. - Authorised representative’s IDDocument Government-issued ID or passport, in their name. - Representative’s emailTo enter Aliases are not accepted; a personal address may lead to additional checks. - Proof of the representative’s authorityDocument The registration document or articles of incorporation if they name them, otherwise a notarised power of attorney (poder notarial) signed by a director or officer named there. Mexican mobile numbers are reserved for person-to-person communication: automated (A2P) traffic is blocked by local carriers. Indicative list updated on 15 October 2026. Requirements are set by each country’s authorities and may change; the exact list is confirmed when you order the number. ## Getting a Mexican virtual phone number for your business Mexico City, Guadalajara, Monterrey: a +52 number shows your Mexican prospects a domestic call. Since the numbering reform, every number in the country, landline or mobile, has 10 digits. For a landline, the company’s address must be within the area code’s zone, and the Constancia de Situación Fiscal, issued by the SAT (the tax authority), proves the company exists. In practice, you need a company on the Mexican tax register. For a mobile, the address can be anywhere in the world: a foreign company provides its articles of incorporation or registration document and enters a generic RFC. The application is fuller (website, the representative’s ID and email, proof of their authority), and these numbers are reserved for person-to-person communication. ## Country code and number format - **Local (landline) **: +52 +52, then 10 digits: a 2-digit area code for the largest cities (55 or 56 Mexico City, 33 Guadalajara, 81 Monterrey), 3 digits elsewhere, then the number. Example: +52 55 1234 5678. - **Mobile **: +52 Same 10-digit format as landlines: +52, then 10 digits, without the 1 formerly added after +52. Example: +52 33 1234 5678. ## What you need to know ### Ten digits everywhere 10-digit dialling has applied since 3 August 2019, and the old 01, 044 and 045 prefixes have been removed. From abroad, the 1 formerly added after +52 to reach a mobile is no longer needed. The IFT, which set this plan, was replaced in October 2025 by the Comisión Reguladora de Telecomunicaciones (CRT). ### Mobiles for person-to-person communication Mexican mobile numbers are reserved for person-to-person communication: local carriers block automated (A2P) traffic on this number type. ### The RFC and the Constancia The RFC (Registro Federal de Contribuyentes) is the tax ID issued by the SAT, 12 characters long for a company. It appears on the Constancia de Situación Fiscal. A foreign company without an RFC enters the generic code XEXX010101000. ## Call prospects in Mexico with a local number Skipcall assigns the local number and your teams call from the browser or the mobile app, with a number your prospects recognise. From $25/month, no commitment. [Discover Business VoIP](https://skipcall.io/en/business-voip) [See pricing](https://skipcall.io/en/pricing) ## Other countries - [US number](https://skipcall.io/en/tools/business-phone-number-requirements/united-states) - [French number](https://skipcall.io/en/tools/business-phone-number-requirements/france) - [Swiss number](https://skipcall.io/en/tools/business-phone-number-requirements/switzerland) - [Canadian number](https://skipcall.io/en/tools/business-phone-number-requirements/canada) - [Dutch number](https://skipcall.io/en/tools/business-phone-number-requirements/netherlands) - [UK number](https://skipcall.io/en/tools/business-phone-number-requirements/united-kingdom) - [Belgian number](https://skipcall.io/en/tools/business-phone-number-requirements/belgium) - [German number](https://skipcall.io/en/tools/business-phone-number-requirements/germany) - [Spanish number](https://skipcall.io/en/tools/business-phone-number-requirements/spain) - [Austrian number](https://skipcall.io/en/tools/business-phone-number-requirements/austria) - [Italian number](https://skipcall.io/en/tools/business-phone-number-requirements/italy) - [Luxembourg number](https://skipcall.io/en/tools/business-phone-number-requirements/luxembourg) - [Finnish number](https://skipcall.io/en/tools/business-phone-number-requirements/finland) - [Swedish number](https://skipcall.io/en/tools/business-phone-number-requirements/sweden) - [Irish number](https://skipcall.io/en/tools/business-phone-number-requirements/ireland) - [Portuguese number](https://skipcall.io/en/tools/business-phone-number-requirements/portugal) - [Danish number](https://skipcall.io/en/tools/business-phone-number-requirements/denmark) - [Estonian number](https://skipcall.io/en/tools/business-phone-number-requirements/estonia) - [Romanian number](https://skipcall.io/en/tools/business-phone-number-requirements/romania) - [Australian number](https://skipcall.io/en/tools/business-phone-number-requirements/australia) - [South African number](https://skipcall.io/en/tools/business-phone-number-requirements/south-africa) - [Brazilian number](https://skipcall.io/en/tools/business-phone-number-requirements/brazil) [Compare the 23 countries in the tool](https://skipcall.io/en/tools/business-phone-number-requirements) ## A calendar full of meetings starts with a call. [Get started now](https://app.skipcall.io/signup) [Book a demo](https://skipcall.io/en/demo) **No commitment** · Number live in 2 minutes ## Frequently asked questions about Mexican business numbers **Which documents do I need for a Mexican business phone number?** For a landline: the Constancia de Situación Fiscal and proof of address within the area code’s zone (the Constancia, a bill or a government letter less than 12 months old). For a mobile: the Constancia or, for a foreign company, its articles of incorporation, proof of address, the RFC, a public website, the representative’s ID and email, and proof of their authority. **Can a foreign company get a Mexican phone number?** Yes for a mobile: the address can be anywhere in the world (except a PO box), with your articles of incorporation or registration document and the generic RFC XEXX010101000. For a landline, you need an address within the area code’s zone and a Constancia de Situación Fiscal, so a company registered in Mexico. **What is a poder notarial?** A power of attorney drawn up before a notary. It proves the representative can act for the company when their name appears neither on the registration document nor on the articles of incorporation. It must be signed by a director or officer who does appear there. **Do I still need to dial 1 to call a Mexican mobile?** No. Landlines and mobiles are now dialled the same way: +52 followed by the 10-digit number.