# CONCENTRIC NETWORK CORP

CONCENTRIC NETWORK CORP is a company headquartered in San Jose, CA, United States.

## Company overview

- **Legal name:** CONCENTRIC NETWORK CORP
- **Classification:** Company
- **Industry (SIC):** 4813 — Telephone Communications (No Radiotelephone)
- **Headquarters:** San Jose, CA, United States
- **Incorporated in:** DE
- **Fiscal year end:** December 31
- **SEC CIK:** 0001007304

## About

CONCENTRIC NETWORK CORP is identified in the retained SEC EDGAR snapshot dated 2026-10-14. Its SEC Central Index Key is 0001007304, and its reported industry is Telephone Communications (No Radiotelephone). The retained history contains 12 filings, including DEF 14A filed on 2000-05-23. 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 DEF 14A — filed 2000-05-23 — period 2000-06-15 — DEFINITIVE PROXY STATEMENT
- Form 10-Q — filed 2000-05-15 — period 2000-03-31 — FORM 10-Q FOR PERIOD ENDED 3/31/00
- Form 8-K — filed 2000-02-14 — period 2000-01-28 — FORM 8-K
- Form 8-K — filed 2000-01-12 — period 2000-01-09 — FORM 8-K
- Form 10-Q — filed 1999-11-15 — period 1999-09-30 — FORM 10-Q DATED 09-30-1999
- Form 8-K — filed 1999-10-22 — period 1999-10-01 — FORM 8-K
- Form 10-Q — filed 1999-08-13 — period 1999-06-30 — FORM 10-Q
- Form SC 13G — filed 1999-07-13
- Form SC 13G — filed 1999-07-09 — SCHEDULE 13G
- Form 10-Q — filed 1999-05-17 — period 1999-03-31 — FORM 10-Q FOR QUARTERLY PERIOD ENDED 3/31/1999
- Form DEF 14A — filed 1999-04-02 — period 1999-05-05 — DEFINITIVE NOTICE & PROXY STATEMENT
- Form 424B4 — filed 1999-02-23 — FINAL PROSPECTUS

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Updated: 2026-10-23T22:26:34Z

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