| | 1: |  | Title:   |  |   |  |   | Volume/Number:   |   |   |  |   | Issuing Agency:   |  |   |  |   | Description:   | Illinois Bell Telephone Company and XO Communications Services, Inc.:    Joint Application for Approval of 21st Amendment to the Interconnection Agreement dated September 22, 2010 pursuant to 47 U.S.C. 252. |   |  |   | Date Created:   | 11 05 2010 |   |  |   | Agency ID:   | 10-0561 |   |  |   | ISL ID:   | 000000030275   Original UID: 14171 FIRST WORD: Order |   |  
  |