DSL Extreme
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Contact Us via Phone or Mail

Is your question one of our common issues? If so, click any of the links before contacting us:
Department
Phone Number
Hours of Operation
Chat/Email
Sales & Information (866) 243-8638 8am-7pm PST Send an Email
Business Sales & Info. (800) 949-3759 Available 24 Hours Send an Email
Billing Department (800) 774-3379 Mon-Fri 8:30am-5pm PST Send an Email
High-Speed DSL Support (866) 491-7221 Available 24 Hours Send an Email
Dialup Support (877) 714-7549 Mon-Fri 7am-7pm PST Send an Email
Website Hosting Support (866) 245-5154 Available 24 Hours Send an Email
Fax Number
(818) 206-0326

Mailing Address
DSL Extreme
21540 Plummer Street - Suite A
Chatsworth CA, 91311

Modem Returns
DSL Extreme
21540 Plummer Street - Suite A
Chatsworth CA, 91311

 

    
  After one call to the tech dept they were all over it. The speed and courtesy of the tech dept is unreal!  
 

From Dean Y.
 
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  • @jank0 @DSL Extreme Thanks for the prompt resolution!
  • @JimOnderisin My new trueSTREAM from @DSL
    Extreme
    is rocking. Getting 50