# ILLINOIS BELL TELEPHONE CO

ILLINOIS BELL TELEPHONE CO is a company headquartered in Chicago, IL, United States.

## Company overview

- **Legal name:** ILLINOIS BELL TELEPHONE CO
- **Classification:** Company
- **Industry (SIC):** 4813 — Telephone Communications (No Radiotelephone)
- **Headquarters:** Chicago, IL, United States
- **Incorporated in:** IL
- **Fiscal year end:** December 31
- **SEC CIK:** 0000049789

## About

ILLINOIS BELL TELEPHONE CO is identified in the retained SEC EDGAR snapshot dated 2026-10-14. Its SEC Central Index Key is 0000049789, and its reported industry is Telephone Communications (No Radiotelephone). The retained history contains 12 filings, including 10-Q filed on 1999-08-03. 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 10-Q — filed 1999-08-03 — period 1999-06-30
- Form 10-Q — filed 1999-05-14 — period 1999-03-31
- Form 10-K — filed 1999-03-30 — period 1998-12-31
- Form 10-Q — filed 1998-11-13 — period 1998-09-30
- Form 10-Q — filed 1998-08-13 — period 1998-06-30
- Form 10-Q — filed 1998-05-12 — period 1998-03-31
- Form 10-Q — filed 1997-11-13 — period 1997-09-30
- Form 10-Q — filed 1997-08-13 — period 1997-06-30
- Form 10-Q — filed 1997-05-06 — period 1997-03-31
- Form 10-K — filed 1997-03-13 — period 1996-12-31
- Form 10-Q — filed 1996-11-07 — period 1996-09-30
- Form 10-Q — filed 1996-08-07 — period 1996-06-30

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Updated: 2026-10-23T22:12:03Z

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