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Customer Service

Learn how to invest

This section includes all information necessary to invest in Oi.

Further information

Glossary of Technical Terms

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See full list of terms

Contact Channels via Internet

IR contact information

Personal service

Oi S.A.’s shareholders are served at any Banco do Brasil branch

Further information

Telephone

The bank service is also available by phone

Rio de Janeiro Metropolitan Area

+55 (21) 4004 0001

Other regions throughout Brazil

0800 729 0722

(¹) This translation is still subject to the auditors review

(¹) This translation is still subject to the auditors review

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