Compare the Top SIP Trunk Providers in the USA as of January 2026

What are SIP Trunk Providers in the USA?

SIP trunk providers are communication service providers that utilize the Session Initiation Protocol (SIP) to provide voice and multimedia sessions over the Internet. They can be used to interconnect an organization’s VoIP infrastructure with the public switched telephone network, allowing businesses to make use of their existing VoIP systems while also taking advantage of external telephony services. SIP trunking is seen as a cost-effective way of providing reliable voice and data services for businesses. Compare and read user reviews of the best SIP Trunk providers in the USA currently available using the table below. This list is updated regularly.

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    GoVoIP

    GoVoIP

    GoVoIP

    Tired of being on hold forever and when you final speak to someone, they say let me call you back with no response? GoVoIP does not do this and you will have access to your own portal to make your own changes to your phones and your account. Don't want to do it yourself, send a simple email and we will get the task done for you. We perform service around your needs. We offer a VoIP phone for as low as $14.95/phone/month or $14.95/SIP Trunk/month. We offer 4G VoIP wireless that does not go through your network router so the customer can receive clear voice calls; we also offer managed routers for customers to use when needed; we offer a fax solution that can connect to customers legacy fax machines so they can send/receive faxes not only through their email but on their fax machines.
    Starting Price: $9.95/month/user
  • 2
    QuestBlue

    QuestBlue

    QuestBlue

    Get your cloud communication solutions through one provider. QuestBlue is the global cloud platform companies choose for cloud-ready voice, messaging, fax, and emergency services. We are committed to delivering high-performing products and solutions through continuous innovated & operational excellence. In addition, our platform let you get customers up & running in MINUTES with all solutions you need, such as Messaging, Hosted PBX, SIP Trunking, Fax, and much more. Our global network is directly connected where it matters most. Plus, you get unmatched reliability, bringing your customers closer and scaling wherever your business takes you. We want your business to be remarkable and we’ll design a solution with you utilizing our cloud communications platform, end-to-end support teams, and customer tools to optimize efficiencies.
    Starting Price: $24.95/month + usage
  • 3
    LINXS Communications

    LINXS Communications

    LINXS Communications

    LINXS Communications offers world class scalability. As your company grows so will your need for additional VoIP services. You let us do all the leg work, so you can focus on your business. With Cloud PBX business VoIP phones from Linxs Communications you can expect to see considerable savings on your phone bill while upgrading your business communications at the same time. LINXS Communications has the capability to allow you to make and receive calls from your mobile phone or a softphone straight from your desktop. Don't let hardware be a barrier to entry. Gigabit phones with high-definition (HD) audio and video gives outstanding clarity over the typical analog phone. 110+ unique feature rich options for you to pick from. We have what your business needs to succeed with plug and play VoIP phones. 24 x 7 x 365 Support located in the United States. Your calls or emails will get a response from the same support team every time.
    Starting Price: $19.95
  • 4
    VoIP Route

    VoIP Route

    VoIP Route

    VoIP Route's hosted phone service runs on the latest cloud-based technology to connect your business without the high costs of traditional premise-based systems and without any compromises. Seamlessly connect, call and collaborate from phones, smart devices, computers or laptops. VoIP Route is a business-class SIP trunk service provider for both IP-PBX systems and analog/digital telephone adapters or gateways. We have earned the trust of our partners and customers by delivering the highest quality service at a competitive price backed by exceptional support. Residential VoIP uses innovative technology to deliver maximum performance at lower costs. Instead of using outdated phone lines to place calls, convert your calls to digital data and use the Internet to make your calls. Residential VoIP phone service is much cheaper than traditional phone service and can help save on expensive monthly bills.
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