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knowledge base

The easiest way to find the answer to what you're looking for.

send us an email

Looking to avoid hold times on the Phone? Then send us a secure email by clicking the link below.

Is your question one of our Common Issues? Click any of the links below if your question concerns: Otherwise click the Image below to send us a Secure Email...
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our phone numbers and address

Want to contact our Technical Support department? Have a question before you place an Order? Unable to find something in our Knowledge Base? Reference the information below to contact us:
Sales & Info.  (866)243-8638 Available 24 Hours
DSL Support  (866)491-7221 Available 24 Hours
Dialup Support  (877)714-7549 Mon-Fri 5am-7pm PST
Exchange Support  (866)491-7221 Available 24 Hours
Billing/Service  (800)774-3379 Mon-Fri 6am-6pm PST
Fax Number  (818)206-0326  
Mailing Address
DSL Extreme
P.O. Box 221050
Salt Lake City, UT 84122
Modem Returns
DSL Extreme
21540 Plummer Street - Suite A
Chatsworth CA, 91311


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DSL Extreme is proud to provide 100% U.S. based Support!
DSL Extreme is proud to provide 100% U.S. based Support! We DO NOT outsource our customer service or technical support.