Best solution for extended international travel

Hello, I hope someone will be able to suggest the best solution for my situation.  I purchased an iPhone 6S and signed up for a plan with Verizon in early 2016 and recently moved to Japan to work for a few months.  I would like to keep my phone number to receive the occasional call or text message but I don't need the data plan since I can use Wi-Fi in my home or office.  I will receive a temporary phone through my company to use.  Is it possible to temporarily suspend the Verizon data plan or possibly replace it with an international data roaming plan that might even be cheaper if I don't use it often?  Thank you in advance for your kind assistance!

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