Officials say around 73 million current and former AT&T account holders have been impacted following this month’s data set leak.

AT&T said it is investigating the data set leak which impacted about 7.6 million current account holders and 65.4 million former account holders.

The company says the preliminary analysis showed the data set is from 2019 or earlier. AT&T said it currently does not have evidence of unauthorized access to its systems from this month’s leak.

AT&T, whose 5G network reaches around 295 million people in the U.S., is in communication with customers impacted by the leak and will offer “credit monitoring.”

Earlier this year, the company had an outage impacting users around the country. Users experienced issues with wireless connections. After the hours-long outages in February, the company said it would give impacted users $5 credit.