Where is Area Code 31?
Area code 31 is published for Belo Horizonte and nearby Minas Gerais municipalities in Brazil.
It should be interpreted as a numbering-plan association, not a live geolocation result.
🇧🇷 Brazil geographic code
31 Area Code in Brazil
Belo Horizonte and nearby Minas Gerais municipalities. This guide separates the geographic area code from country calling code +55 and explains how to write both domestic and international formats.
International prefix+55 31
Domestic: DDD 31Fixed geographic
Quick facts
31 Area Code Overview
CountryBrazil
Country code+55
Domestic area codeDDD 31
Code typeGeographic fixed line
Coverage visualization
Area Code 31 Map
This schematic shows the published numbering association without inventing precise geographic boundaries.
31 · Brazil
Belo Horizonte and nearby Minas Gerais municipalities
What Time Zone is Area Code 31?
Four principal time zones, from UTC−2 to UTC−5
America/Sao_Paulo: Calculated in your browser
America/Manaus: Calculated in your browser
America/Rio_Branco: Calculated in your browser
America/Noronha: Calculated in your browser
Where a code spans several zones, confirm the destination city before calling.
History
Brazil introduced a ninth digit for mobile numbers gradually between 2012 and 2016, starting with DDD 11 in São Paulo. In 2026, Anatel aligned local fixed-telephone charging areas with the 67 DDD numbering areas without replacing the DDD codes.
Domestic long-distance and outbound international calls use a two-digit carrier selection code. The safest universal representation is the plus format. Mobile number portability means a prefix does not reliably identify the current operator.
Nearby Area Codes
“Nearby” means related entries in this country directory, not a guarantee of a shared physical border.
Brazil
71 Area Code
Salvador metropolitan numbering area
Brazil92 Area Code
Manaus and nearby Amazonas municipalities
Brazil85 Area Code
Fortaleza and nearby Ceará municipalities
Brazil41 Area Code
Curitiba and nearby Paraná municipalities
Brazil61 Area Code
Federal District and nearby Goiás municipalities
Brazil81 Area Code
Recife and nearby Pernambuco municipalities
Top 5 Counties or Regions in Area Code 31
Administrative units and telephone zones are different entity types; the list reflects featured city associations only.
Top 50 Cities in Area Code 31
- Belo Horizonte — Minas Gerais
The directory includes up to 50 verified or clearly qualified city associations and does not claim exhaustive coverage.
Network interpretation
Largest Telephone Carriers
Current operator and market-share data are dynamic. This page avoids assigning a specific number to a carrier from its area code alone.
Landline
Area code 31 is a geographic fixed-line identifier. Consult Agência Nacional de Telecomunicações (Anatel) for live allocation or licensing information.
Wireless
Wireless numbers commonly use separate non-geographic ranges. Number portability prevents reliable current-carrier identification from a prefix alone.
Prefixes
+55+31+subscriber number
Domestic code: DDD 31
International prefix: +55 31
Search by City:
- Belo Horizonte — Minas Gerais
By Number:
A number beginning +55 31 matches this geographic pattern. Keep the remaining subscriber digits intact. This directory does not perform reverse lookup or identify a private subscriber.
Listings by Region or State
More Information
Common questions
31 Area Code FAQ
Where is area code 31?
31 is associated with Belo Horizonte and nearby Minas Gerais municipalities in Brazil.
How do I call area code 31 from abroad?
Use +55 31 followed by the subscriber number; remove any domestic trunk prefix.
Does area code 31 identify the current caller location?
No. It describes numbering-plan association, while portability, forwarding and internet calling can separate a number from the caller’s current location.