0000950134-01-507362 Sample Contracts

AMENDMENT NO. 1

Agreement and Plan of Merger • October 17th, 2001 • Allied Riser Communications Corp • Telephone communications (no radiotelephone)

• Contract Type
  Agreement and Plan of Merger
• Filed
  October 17th, 2001
• Company
  Allied Riser Communications Corp
• Industry
  Telephone communications (no radiotelephone)

Execution Copy EXHIBIT 2.1 AGREEMENT AND PLAN OF MERGER Dated as of August 28, 2001 By and Among ALLIED RISER COMMUNICATIONS CORPORATION, COGENT COMMUNICATIONS GROUP, INC.

Agreement and Plan of Merger • October 17th, 2001 • Allied Riser Communications Corp • Telephone communications (no radiotelephone) • Delaware

• Contract Type
  Agreement and Plan of Merger
• Filed
  October 17th, 2001
• Company
  Allied Riser Communications Corp
• Industry
  Telephone communications (no radiotelephone)
• Jurisdiction
  Delaware