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Get a Virtual Phone Number for Dover, New Hampshire

Dover, your Ninja is waiting.
Get a second phone line for your business - on your cellphone.

Keep Your Work and Personal Life Separate, but Together

Ninja Number goes where you go, so you can always be available if you need to, but still take your family out to dinner without worrying about missing a call.

Just like a Ninja, we work behind the scenes to take care of your calls if you aren’t able to.


Link Up to 5 Phones

Collaborate with your team to answer phone calls and texts. Ninja Number can link up to 5 different phones to your business number, so if you’re busy, someone else on your team will respond.

Linking phones also allows you to go back and find out who answered a specific call or text - great for gathering more information or audit tracking.



If you can't respond, we can do it for you.

Trapped in a meeting and can’t leave to answer a call? Return voicemails via text, or customize answers to frequently asked questions.

Through our auto-reply feature, we use artificial intelligence to recognize questions asked by callers by text message or voicemail transcription and reply with your answers.


Additional Features Included:


Hold all calls and let them go directly to voicemail.


Ninja Number reminds you when you’ve missed a call. View all your unanswered calls from the home screen.

Call Tracking
Call Tracking

Mark each call according to who they are - inquiry, initial contact, customer or VIP - so you can prioritize what calls to return.

Multiple Extensions
Multiple Extensions

Turn your Ninja Number into a true phone system with extensions for each employee or department, allowing your business the flexibility to grow.


Get detailed data on your calls and messages so you can make better decisions about your business.

Get any number
Get Any Number

Choose from local, toll-free or vanity numbers. You can even transfer an existing number to Ninja Number.

Dover, New Hampshire - Facts & Figures

Dover, New Hampshire was the first permanent settlement in New Hampshire in 1623, and is the seventh oldest in the whole country. Today, Dover has been growing and changing, adding modern offerings such as business, culture, art and dining to their long-established attributes of scenic beauty and history. Dover possesses a thriving and stable economy, drawing in residents and businesses. The work force is educated, but not too expensive, and transportation in and out is reliable and convenient. City planning has ensured excellent housing that does not take away from nature. They maintain parks, trails, historical landmarks, and museums. They are currently involved with a beautification and revitalization effort for Dover's waterfront. Main Street is the destination for dinner and shopping; and downtown is home to galleries, museums, and venues. When you add all that to community-funded events and no state sales tax, Dover is also a draw for tourists.

  • Population: 30,004
  • Industries: Manufacturing; Retail trade; Educational services; Accommodation and food services; Construction; Health care and social assistance
  • Area Codes: 603
  • ZIP Codes:  03820, 03821, 03822
  • Surrounding Cities: Haverhill, MA; Boston, MA; Madbury, NH; Rollinsford, NH; Durham, NH; Somersworth, NH; Durham, NH; Berwick, ME; Eliot, ME; South Berwick, ME

Here are some more cities in New-hampshire where we offer service!

Dover, get your Ninja working for you right away.


Try Ninja Number free for 7 days. Instant activation – no contracts, and all features included!

We guarantee that Ninja Number will help grow your business. If you don’t believe Ninja Number can help grow your business and make more money, just cancel your service and that month’s payment is on us!!