Customer Support
T: 16500
Working days from 09h to 19h, free calls from all national fixed networks and ONI mobile network, 30 cents/min (VAT included), from other mobile national networks.
E: 16500@oni.pt
Portability Announcement and Tariff Information
Helpline for activating or deactivating the portability announcement, to access tariff information and mobile customer support.
T: 16502
24 hours a day, 7 days a week.
Free from Portugal, from abroad dial +351 928 519 999 (Free in the Eurotariff zone, paid in other zones according to the roaming tariff in force).
Customer Ombudsman
T: +351 300 504 548
E: provedor@oni.pt
Billing and Litigation | +351 211 154 300
Tuesdays and Thursdays from 15h to 18h
General | +351 211 154 300
Working days from 9h to 18h
Central of Operational Management | 800 500 800
Everyday 24 hours (free)
Roaming Support | +351 928 519 999
(from abroad)
Available 24 hours a day. Free calls at the Eurotariff zone; paid on the remain zones according to the roaming price list.
ONICARDS Line | 707 503 334
Working days from 9h to 18h (Fixed network: €0,09/min, mobile network: €0,13/min. Billed per second after the 1st minute).