Phone company name that looks like a Roman numeral

• Twelfth-century starter
• Sprint competitor, once
• Date in reign of Henry I
• 2006 Verizon acquisition (abbr.)
• 1-800-COLLECT introducer (1993)
• Telecom company bought by Verizon in 2006: Abbr
• AT and T alternative
• Company that merged with WorldCom in 1998
• 12th century opener

Wikipedia Word definitions in Wikipedia
MCI may refer to: mCi , millicurie , 1/1000 of a curie, a non-SI unit of radioactivity MCi , megacurie , 1,000,000 times a curie, a non-SI unit of radioactivity, 1 MCi = 3.7×10 decays per second or becquerels 1101 in Roman numerals