# MCI INC

MCI INC is a company headquartered in Clinton, MS, United States.

## Company overview

- **Legal name:** MCI INC
- **Former names in filing history:** WORLDCOM INC (2002-04-04 to 2004-04-20); WORLDCOM INC/GA// (2000-11-06 to 2002-05-28); MCI WORLDCOM INC (1998-12-23 to 2000-04-12); WORLDCOM INC /GA/ (1997-10-09 to 1998-08-07); WORLDCOM INC /MS/ (1995-08-14 to 1997-01-15); LDDS COMMUNICATIONS INC /GA/ (1994-11-28 to 1995-05-15)
- **Classification:** Company
- **Industry (SIC):** 4813 — Telephone Communications (No Radiotelephone)
- **Headquarters:** Clinton, MS, United States
- **Incorporated in:** DE
- **Fiscal year end:** December 31
- **SEC CIK:** 0000723527

## About

MCI INC is identified in the retained SEC EDGAR snapshot dated 2026-10-14. Its SEC Central Index Key is 0000723527, and its reported industry is Telephone Communications (No Radiotelephone). The retained history contains 12 filings, including SC 13G filed on 2006-02-15. Each filing retains its accession, filing date and original SEC document link. This historical evidence does not establish current registration, listing, ownership or financial condition.

## Recent SEC filings

- Form SC 13G — filed 2006-02-15 — INITIAL - ST - CO 0111
- Form SC 13G — filed 2006-02-15 — INITIAL - ST - CO 0111
- Form 8-K — filed 2006-01-06 — period 2006-01-06
- Form 8-K — filed 2006-01-06 — period 2005-12-30
- Form 8-K — filed 2006-01-05 — period 2005-01-04
- Form 8-K — filed 2006-01-05 — period 2006-01-05 — FORM 8-K
- Form 10-K/A — filed 2006-01-05 — period 2004-12-31 — AMENDMENT NO. 2 TO FORM 10-K
- Form 8-K — filed 2005-12-16 — period 2005-12-16
- Form 8-K — filed 2005-12-14 — period 2005-12-08
- Form 8-K — filed 2005-11-15 — period 2005-11-10
- Form 10-Q — filed 2005-11-03 — period 2005-09-30 — FORM 10-Q
- Form 8-K — filed 2005-11-03 — period 2005-11-03

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Updated: 2026-10-23T22:14:22Z

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