In the United States cell phone users are usually able to transfer their existing cell phone number when they switch to a new cell phone service provider. This was not always the case, but has become commonplace due to changes in the law. Getting a brand new cell phone number can be useful for those trying to avoid contact with someone who continues to call their cell phone. It can also be done to get a number with an area code that matches one's current home address location. But if you want to get a new cell phone number completely different from your existing cell phone number you will have to get a new cell phone service plan. You may be able to get one from your existing carrier (although this would be a new line, not a change to an existing line) or get a new plan with a new provider.
Speak with your current cell phone service provider about getting a new cell phone number. If they are willing to change a number on your existing phone line, this is the easiest way to do it. They may assess a fee to do so. You may also be able to get a new line added to your cell phone service plan which will come with a new number. This may not replace your existing line; rather it will add another one to your plan. Again, this will come with additional fees and charges.
Contact a new cell phone service provider. If your existing provider will not allow you to add a new number and line or if it is more cost effective to go with another provider, contact a new provider and set up a new plan. Keep in mind that if you cancel your existing plan before the contract expires you may be required to pay a termination fee.
Purchase a new plan with the new service provider and you will be given the option to transfer the existing number from your old plan. To get a brand new number, decline this option and you will be assigned a brand new cell phone number.