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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

     Contact MCI. We welcome your feedback and are eager to help...

   • 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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   Find a Customer Service number. Browse information on MCI's services and find answers to frequently asked questions. Browse Info & Answers. Current MCI customers can get updates, news, and special offers via e-mail. Sign up for E-mail Alerts. Need help deciding? Compare plans.

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

   consumer.mci.com › customer_service › ContactUs

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   Contact MCI. We welcome your feedback and are eager to help answer your general questions. 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.

4. en.wikipedia.org › wiki › MCI_IncMCI Inc. - Wikipedia

   en.wikipedia.org › wiki › MCI_Inc

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   MCI, Inc. (formerly WorldCom and MCI WorldCom) was a telecommunications company. For a time, it was the second-largest long-distance telephone company in the United States, after AT&T.

5. 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. Pay Bill.

6. business.mci.com › small_business › customer_serviceContact MCI

   business.mci.com › small_business › customer_service

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   Contact MCI. We welcome your inquiries and are happy to answer your questions. Please choose from one of the following options to contact us: Get a complete list of our Customer Service numbers so you can call us with questions about the products that interest you. Back to Top.

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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   How does MCI business complete work?

   • If you are an MCI Business Complete customer you can relax knowing your account is always up-to-date. Choose an EasyPay automatic billing solution using your credit card or direct debit, and you'll save $1 every month plus earn up to 60 free minutes!* Your MCI account offers convenient message notification and retrieval options.

   MCI

   www.mci.com/small_business/customer_service/

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   How do I pay my MCI Bill?

   • Make an Instant Payment, or sign up for automatic credit card or direct debit billing; it's your choice. And with automatic payment, you'll save $1 off your MCI bill every month! Still having trouble finding what you need? E-mail MCI with your general questions and comments. In most cases we'll respond within 24 business hours.

   Customer Service - MCI

   consumer.mci.com/customer_service/index.jsp

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   How can I save money on my MCI Bill?

   • View your invoice, make a payment, update your services, and more. Start saving time and stop writing checks. Make an Instant Payment, or sign up for automatic credit card or direct debit billing; it's your choice. And with automatic payment, you'll save $1 off your MCI bill every month!

   Customer Service - MCI

   consumer.mci.com/customer_service/index.jsp

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   What happened to MCI WorldCom?

   • On November 4, 1997, WorldCom and MCI Communications announced a $37 billion merger to form MCI WorldCom, making it the largest corporate merger in U.S. history. On September 15, 1998, the merger was consummated, forming MCI WorldCom. MCI divested itself of its "internetMCI" business to gain approval from the United States Department of Justice.

   MCI Inc. - Wikipedia

   en.wikipedia.org/wiki/MCI_Inc.

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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.