Porting Phone Numbers

Keep your phone number!
It's easy to port your existing numbers over to OnSIP for just $15* per number:

Submit a port request

Log into the Admin Portal to enter a port request. We'll check that your number(s) can be ported, then send you an email confirmation. Please take note of the Case Number in this email.

Send us your phone bill

Send the first page of your CURRENT phone bill showing the old provider name, your company name, your company address, and phone number(s) to be ported. Email to porting@onsip.com or fax to 215-754-4477, and be sure to include the Case Number.

Complete a Letter of Authorization

We will email you a Letter of Authorization to review, sign, and send back to us via email to porting@onsip.com or via fax to 215-754-4477. The information in the Letter of Authorization must match the information on your latest phone bill. The porting process typically takes 2–3 weeks from the time your signed letter is received.

Forward your calls

Once you've set up your OnSIP phone system (added users, created phone trees, auto attendants, etc.) and your VoIP phones, we can provide you with temporary OnSIP numbers. Simply have your current provider forward your calls to these temporary numbers. You are live with OnSIP at this point.

Cancel your old service

When your number port is complete, cancel service with your old provider.

*If you're porting from more than five carriers or providers, we may charge an administrative fee of $30 per additional carrier/provider. This is an unusual case, and we will inform you of any possible additional charges prior to submitting your port to our vendors.