exhibit 2. 1 execution version agreement and plan of merger dated as of april 26, 2011, among savvis, inc., centurylink, inc. and mimi acquisition company exhibit 2. 1 execution version agreement and plan of merger dated as of april 26, 2011, among savvis, inc., centurylink, inc. and mimi acquisition company table of contents page article i the merger section 1. 01. the merger 1 section 1. 02. closing 1 section 1. 03. effective time 2 section 1. 04. effects 2 section 1. 05. certificate of incorporation and by - laws 2 section 1. 06. directors and officers of surviving company 2 article ii effect on the capital stock of the constituent entities ; exchange of certificates section 2. 01. effect on capital stock 2 section 2. 02. exchange of certificates 4 section 2. 03. dissenters ’ rights 6 article iii representations and warranties of parent and merger sub section 3. 01. organization, standing and power 7 section 3. 02. parent subsidiaries 8 section 3. 03. capital structure 8 section 3. 04. authority ; execution and delivery ; enforceability 10 section 3. 05. no conflicts ; consents 10 section 3. 06. sec documents ; undisclosed liabilities 12 section 3. 07. information supplied 13 section 3. 08. absence of certain changes or events 14 section 3. 09. benefits matters ; erisa compliance 14 section 3. 10. litigation 15 section 3. 11. compliance with applicable laws 15 section 3. 12. brokers ’ fees and expenses 15 section 3. 13. financing 15 section 3. 14. merger sub 16 section 3. 15. no other representations or warranties 16 - i - table of contents page article i the merger section 1. 01. the merger 1 section 1. 02. closing 1 section 1. 03. effective time 2 section 1. 04. effects 2 section 1. 05. certificate of incorporation and by - laws 2 section 1. 06. directors and officers of surviving company 2 article ii effect on the capital stock of the constituent entities ; exchange of certificates section 2. 01. effect on capital stock 2 section 2. 02. exchange of certificates 4 section 2. 03. dissenters ’ rights 6 article iii representations and warranties of parent and merger sub section 3. 01. organization, standing and power 7 section 3. 02. parent subsidiaries 8 section 3. 03. capital structure 8 section 3. 04. authority ; execution