Telstra's 3G and 4G networks have 'no issue' the telco says.Credit:James Davies
MVNOs are telcos that use the Telstra network to sell phone plans on to customers.
"There is no issue with Telstra's 3G and 4G network,"a Telstra spokesperson said in a statement.
"There was a vendor platform issue that impacted mobile virtual network operating services for a small number of wholesale customers.
"The majority of those services have already been restored. We apologise to these wholesale customers for any inconvenience."
Telstra did not name any companies affected,but MVNOs using Telstra's network include Woolworths Mobile,TeleChoice and Lyca. Belong Mobile and ALDI confirmed to disgruntled customers via Twitter that there was an issue affecting service.