+1 800.462.8694 U.S. | +1 770.937.9735 Worldwide

USA SIP Numbers

Enjoy amazing call quality and 20+ VoIP features when you buy USA SIP numbers. Try USA DID numbers risk-free.

Get USA SIP numbers online

No setup fees, no minimum contracts

Call forwarding to any device worldwide

Transfer USA DID numbers for free

Inbound and outbound calling included

Try any USA SIP number plan risk-free!

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Try the Best USA SIP Number Service Risk-Free

An USA SIP number allows you to forward inbound calls to any device in any location worldwide. Also known as USA DID numbers, these phone lines are hosted on AVOXI's reliable VoIP phone network. You can use your toll free or local USA SIP DID for outbound calling with custom caller ID and amazing voice quality. Make calls with AVOXI's softphone, your own SIP phone account, or your existing analog phone lines. Every USA SIP phone number plan from AVOXI includes IVR, global conferencing, call recording, advanced routing rules and 20+ more features at no extra cost. There are no setup fees or minimum contracts, and you can port your existing numbers for free! Buy a USA SIP number today and try 30 days risk-free.

USA's Top SIP Number Provider

USA SIP numbers

  • Toll free and local USA SIP numbers available.
  • Enjoy 15 days of free call recording or instantly activate an extended plan.
  • Use your USA SIP numbers as your custom caller ID when making calls.
  • Earn $25 - $1,000 by transferring USA SIP numbers to AVOXI.
  • Host unlimited call conference rooms with up to 500 participants.
  • Get covered by expert 24/7 technical support.
  • Your USA VoIP numbers include 20+ features no extra cost.
  • Easily manage IVR menus, call forwarding rules, call analytics and much more from your Online User Interface.
  • Buy USA SIP numbers with no setup fees or contracts. Try any VoIP number plan for 30 days risk-free.

SIP Number ForwardingSIP-numbers-usa

  • Set up USA SIP number forwarding to any device worldwide.
  • Update your IVR menus and personalized greetings anytime.
  • Customize call forwarding rules like time-based routing, simultaneous ringing, find-me-follow-me and more at no extra cost.

Managing Your Inbound Calls

  • Create unlimited call groups with custom handling rules.
  • View detailed analytics and call logs in your Online User Interface. 
  • Instantly activate new phone numbers from 140+ countries online.
  • Every USA SIP number plan includes advanced forwarding, IVR, voicemail, call screening, call groups, and many more features.

Outbound Calls and SIP Trunking

  • USA VoIP numbers include global outbound dialing
  • Use your USA virtual numbers as your custom caller ID
  • Establish controls on outbound dialing with call barring rules
  • Instantly add SIP trunks with up to 480 channels to any virtual number. 
  • Instantly add, remove, and manage SIP trunks online anytime from your AVOXI Core User Interface
  • Use our web-based VoIP softphone for outbound calls to any global destination

Try the Best USA SIP Number Service Now

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  • With AVOXI, you get 99.99% uptime and reliable VoIP failover routing. 
  • Reduce costs and earn credit for every phone number you port to AVOXI. 
  • Hosted data centers across North America, Africa, and Asia ensure amazing call quality no matter where you are.
  • AVOXI offers the best pricing and largest inventory of toll free and local virtual phone numbers around the world.
  • Try your USA SIP number service for 30 days risk-free. There are no setup fees and you can transfer your phone numbers for free.

VoIP Features Included with Your USA SIP Numbers

Customize 20+ business phone features from an easy-to-use online interface with any virtual business number plan. When it comes to delivering advanced features at an amazing value, nobody goes as far as AVOXI!

Call Analytics

Call Hold

Custom Caller ID

Voicemail-to-Email

Custom Ring Rules

Self-Service

Custom Greetings

Call Whisper

Call Barge

Custom Call Outcomes

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How to Get a USA SIP Number Today

Setting up virtual numbers in the United States is quick, easy, and affordable with AVOXI. Get a US SIP number today with any of these options:

  1. Buy USA SIP numbers online and start customizing your call forwarding rules today. An AVOXI specialist will contact you after your purchase to confirm your account, test your new number, and answer any questions you may have.
  2. Call us directly from any of our business phone numbers to share any questions you have about our service or to have an AVOXI specialist help set up your new SIP numbers in the USA or anywhere else.
  3. Submit the short contact form to request custom pricing, schedule a free demo, or to search our global database for a custom business phone number.

How Much Do USA SIP Numbers Cost?

You can buy USA SIP number plans for as little as $4.49 per month. Inbound call rates range from $0.008 - $0.041 per minute, depending on the plan you choose. For detailed SIP termination rates, please contact us today! There are no setup fees or minimum contracts. Try 30 days risk-free.

Buy US SIP Numbers Online

Buy USA SIP Numbers Online

Start taking calls within minutes when you buy USA SIP number online. After your purchase, an AVOXI specialist will contact you to verify your account and test your new number for you. 

Call AVOXI Directly

Call AVOXI Directly

US/Canada: 1 800 394 1980
Australia: 1 800 834558
United Kingdom: 0800 652 5029
Worldwide: (770) 937-9735

Schedule a Demo with Our Experts

Submit the short contact form to request custom pricing, schedule a free demo, or to have AVOXI specialists search our global database for the custom virtual business number you're looking for.

Reviews from Our Customers

Why International Companies Choose AVOXI

There's a reason that thousands of companies worldwide trust AVOXI as their toll free service provider. Choosing AVOXI gets you:

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Worldwide Reliability


AVOXI's global toll free number network is backed by multiple VoIP data centers with failover routing worldwide.

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Customer Focus


Every virtual toll free number plan includes access to 24/7 support and a dedicated account manager.

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Superior Call Quality


Over 98% of calls handled by AVOXI score above the global standard for "excellent" VoIP call quality.

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Reduced Costs


Compare your current toll free phone number rates and learn how much you can save by switching to AVOXI.

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Global Coverage


AVOXI's inventory of hard-to-get 800 phone numbers means you can start taking calls anywhere, fast.

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Simplified Scalability


Easily add our ITFS numbers to your current system or use AVOXI as your complete business phone service.

Frequently Asked Questions

How long does it take to get USA SIP numbers?

When you purchase a US SIP number in the online shopping cart, your new business number is set up and activated within 30 minutes or less. If your business email does not match your listed company, an AVOXI expert may reach out to confirm your account details before unblocking the number.

I already have a USA SIP number, but I want to save money with AVOXI. What can I do?

To reduce call costs or use our service with an existing number, simply port your number to AVOXI. SIP number porting is a quick and easy process.

Can I make outbound calls with my SIP DID?

Yes, AVOXI includes outbound calling and custom caller ID with any SIP did number plan.

How many concurrent calls can I make with a USA SIP trunk solution?

USA SIP trunk plans come with as many as 480 channels per trunk, and there is no limit to how many trunks you can provision. For USA SIP trunk plans and pricing, contact us today!

How else can AVOXI help my business?

In addition to USA SIP numbers, popular services from AVOXI include:

  • International Virtual Phone Numbers
  • Global SIP Trunking

Still Have Questions About USA SIP Numbers?