• If your business has a communications need, then XO Communications has what you’re looking for. Within the industry, we are recognized for our technical knowledge and experience, quality products and services, and our exemplary customer service. As a leader in the VoIP provider industry, our business is making your business and your data management as efficient as possible. We specialize in installing and maintaining multiple types of networking solutions to keep your business moving smoothly. If you are looking for data connections, your own network or telephony in San Diego, we have what you need.

    The XO Service Portfolio: San Diego

    Enterprise Cloud

    Our enterprise cloud services are a valuable asset for our customers. The cloud essentially allows you to store enormous amounts of data without having to have the physical hardware in your location. This allows for more comprehensive backup data solutions and gives the correct people access to the information they need. Our enterprise cloud services are secure and guaranteed to deliver the quality and ease of use that you are looking for. Learn more about our Enterprise Cloud Services>>

    Dedicated Internet

    Many business customers prefer dedicated Internet services. This eliminates the need for shared internet services, which can often get bogged down when more and more users are accessing them. With dedicated internet, you will never have to share your bandwidth, as the services are set up especially for you. This is a great option for companies who send and receive a large amount of data. A dedicated service on our network provides you with the tools needed to maintain and grow your business. Learn more about our Dedicated Internet Services>>

    SIP Services

    SIP stands for Session Initiation Protocol and it’s a technology that allows for multimedia conferencing. If your company utilizes products like video conferencing, the SIP technology is definitely something worth considering. XO Communications provides SIP Trunking and Enterprise SIP to enable businesses of all sizes to have reliable combined data, voice and Internet options. This is the next step in the communications industry, and soon, most successful companies will have integrated systems that handle SIP flawlessly. Learn more about our SIP Services>>


    Ethernet services are exceptionally important for businesses that need networked solutions for their data. Multiple locations can be networked to provide fast and secure data transfers that your company needs to compete. This increases worker productivity and ensures that your customers get the stellar service they expect with your brand. This gives you options and flexibility along with XO Communications’ expert installation and customer service. Learn more about our Ethernet Services>>

    MPLS Services

    Multi-Protocol Label Switching, or MPLS, is the technology responsible for speeding up the flow of data and information through your Internet network. XO Communications offers MPLS IP-VPN services designed to make your data transfers as fast and secure as possible. Learn more about our MPLS Services>>

    XO Provides Businesses in San Diego and Beyond with Award-Winning Services

    Savvy business owners combine multiple technologies to make their networks efficient, fast and secure. Contact XO Communications for all of your business telephony and internet needs. Not only can we optimize your network and your communications, we can also maintain an advanced IP network nationwide for maximum coverage that gives our customers added security and exceptional data transfer. See our full list of services>>

  • The Right Network for Your Business

    Better solutions demand door-to-door delivery of communications traffic at the fastest speeds available. With XO, you’ll have leading IP and networking solutions delivered over our own private, award winning nationwide network to all your locations. Our unique combination of nationwide IP and transport networks, metro networks and fixed wireless capabilities allows us to provide maximum coverage, performance and scalability.

    Learn more about why we have The Right Network for your business >>

  • Medium/Enterprise Sales

    Let our local experts design a solution to meet your unique business needs with a free consultation.


  • Small Business Sales

    Call to talk to one of our Small Business Consultants, or click to fill out the form


    Request Small Business Pricing
  • Colocation Facilities

    Copely Drive
    5771 Copely Drive
    1st Floor
    San Diego, CA 92111

  • Reduce Mobile Costs with XO WorkTime

  • Uncorking the Bottleneck:
    XO Communications MPLS IP VPN and Wine.com

  • Sales Office Location

    XO Communications
    5771 Copley Drive
    San Diego, CA 92111

  • Curious about our network coverage?

    The core of the XO IP network is a mesh of multiple 10 Gigabit (Gbps) circuits, connecting XO network nodes, peering POPs and XO Data Centers nationwide. The XO IP backbone runs across its own intercity fiber facilities, supported by terabit-capable core routing platforms and high-capacity peering interconnections. XO offers Dedicated Internet Access (DIA) and IP Transit customers enhanced Internet connectivity. This network design delivers maximum end-to-end throughput as well as high levels of protection, redundancy, and Quality of Service required to support XO Voice over IP services

    The XO IP network utilizes an advanced IP design, ensuring scalability as well as the ability to offer advanced future IP services plus the added benefit of no single IP point of failure past the customers' access port

    And since the XO IP network and market connections run end-to-end across XO facilities, XO can quickly resolve any problems that may occur; which eliminates many of the common failure points found in older network designs.

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    XO serves businesses nationwide and has global reach to more than 50 countries. Submit your U.S. business address to find out service options at your location.