Someone can't recieve my messages

[cwis919]

Everyone is getting my texts just fine except one specific number. I've sent a lot of messages over the past few days, and I can receive his but he isn't getting any of mine. He is with Virgin Mobile. He is receiving everyone else's texts but mine. 

[eclipse4227]

Same problem... Except I've found 3 people that dont receive my texts

[vzw_customer_support]

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