Yes. You can actually text from your Verizon cell phone to a UK phone on the Three UK network. You will want to check to see if international text messaging while in the U.S. is included with your particular service plan. If it is not, you will be billed for sending and receiving the international text messages. If you have not been billed for receiving those texts from your brother, then you have unlimited international text messaging while in the U.S.
That is a great answer wadeowen307. You are also able to check your coverage using the following link:https://www.verizonwireless.com/support/international-services/ This way you can make sure that your account set up to provide international texting.