Hi if you want to find the customer service number of verizon Data Services India Private Limited.Then do whois search for their official website named as "verizon.com" through sites like WhoisXY.com here they will display details like domain registrant name ,address ,phone number ,email id and so on ..I hope it will be helpful to you .I did whois search and found the contact details it was "1.7033513164" you can contact them and ask about their customer service number .