Business Customer Service

1 800 921 8102

Enterprise Support

1 888 637 9620

24/7 Technical Support

FOR VOICE and DATA call 1 800 921 8102

Prompt 2
then enter telephone or account number followed by the #
Prompt 5, 4

FOR PRI  call 888 637 9620
option 1, 1 to open a ticket
option 1, 2 for status on an open ticket

Frontier Support

https://frontier.com/small-business/helpcenter/categories/account