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1. consumer.mci.com › customer_service › Service_NumbersMCI Customer Service Numbers

   consumer.mci.com › customer_service › Service_Numbers

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   MCI offers customer support for all your service needs. You may contact our representatives by phone or e-mail using the information below. If you are a current MCI Consumer customer, you can log in to our secure customer website to access your account information or e-mail Customer Service.

   • Easypay Solutions

     Paying your phone bill has never been easier. Click to make...

   • MCI Info & Answers

     Find the information you need and answers to frequently...

   • Contact MCI

     If you are a current MCI Consumer customer and you have a...

   • MCI All Products

     MCI Nationwide 200 Plus All long distance calls as low as 5¢...

   • The Neighborhood

     Unlimited calling is for residential voice service only....

2. consumer.mci.com › customer_service › indexCustomer Service - MCI

   consumer.mci.com › customer_service › index

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   Browse our information resources, e-mail or call to speak to a Customer Service representative with any comments or questions. Online Account Manager gives you secure access to your account when it's convenient for you, 24 hours a day, 7 days a week.

3. www.mci.com › customer_service › ContactUsContact MCI

   www.mci.com › customer_service › ContactUs

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   If you are a current MCI Consumer customer and you have a specific question about your account or need to make account updates, you must log in to our secure customer website to e-mail Customer Service. You'll receive an answer to your question within 24 business hours.

4. www.mci.com › small_business › customer_serviceMCI

   www.mci.com › small_business › customer_service

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   View your invoice, make a payment and much more - whenever you like, 24 hours a day, 7 days a week. With MCI, managing your account online is fast and easy. If you need to speak to someone right away, our toll-free Customer Service numbers are accessible below.

5. consumer.mci.com › indexMCI Residential Phone Services

   consumer.mci.com › index

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   We offer Residential & Small Business Local and Long Distance, SkyTel Messaging, Prepaid Calling Services, Internet Wholesale, and Telecommunications Wholesale Services.

6. www.verizon.com › about › sitesWorldCom - Verizon

   www.verizon.com › about › sites

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   WorldCom was a leading communications company that was acquired by Verizon Communications in January 2006. Known as MCI at the time of the merger, WorldCom’s network assets are now part of Verizon Business. WorldCom was originally founded in 1983 as Long Distance Discount Service, Inc.

7. People also ask

   How do I contact MCI customer service?

   • You may contact our representatives by phone or e-mail using the information below. If you are a current MCI Consumer customer, you can log in to our secure customer website to access your account information or e-mail Customer Service. Existing customers should have their account number available when calling.

   MCI Customer Service Numbers

   consumer.mci.com/customer_service/Service_Numbers.jsp

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   How do I Manage my MCI account?

   • The most convenient way to manage your MCI account is to handle it yourself - online. View your invoice, make a payment and much more - whenever you like, 24 hours a day, 7 days a week. With MCI, managing your account online is fast and easy. If you need to speak to someone right away, our toll-free Customer Service numbers are accessible below.

   MCI

   www.mci.com/small_business/customer_service/

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   What services does MCI offer?

   • Pay Your Bill, Email Customer Service, Update Services and Account Information, Free Directory Assistance and much more... Welcome to MCI. We offer Residential & Small Business Local and Long Distance, SkyTel Messaging, Prepaid Calling Services, Internet Wholesale, and Telecommunications Wholesale Services.

   MCI Residential Phone Services

   consumer.mci.com/index.jsp

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   How much does MCI cost?

   • 4¢ all day, any day. 200 domestic long distance minutes for $13.99. Great low rates to the countries you call the most, all day, every day. Need help deciding? Compare plans Pay Your Bill, Email Customer Service, Update Services and Account Information, Free Directory Assistance and much more... Welcome to MCI.

   MCI Residential Phone Services

   consumer.mci.com/index.jsp

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   What is an MCI number?

   • MCI All The MCI Number is a unique identifier required for each client enrolled in any DPW system. Since a client may be served by different program offices within DPW and multiple departments across the Commonwealth, this ID number helps to track the same client across various programs. How many waivers does ODP administer?

   What does MCI number stand for? – KnowledgeBurrow.com

   knowledgeburrow.com/what-does-mci-number-stand-for/

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   Where is MCI headquartered?

   • Prior to the acquisition, MCI was headquartered in Ashburn, Virginia. The MCI acquisition provided Verizon with an international long-distance network and several large corporate customers. Along with the merger, a new corporate division, Verizon Business, was created to serve medium and large businesses and government customers.

   WorldCom - Verizon

   www.verizon.com/about/sites/default/files/worldcom/index.html

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8. www.mci.com › international › englishMCI - Worldwide Toll-Free Access Numbers

   www.mci.com › international › english

   Sign-up and start saving with MCI International Weekends on all your domestic and international calls.