TW Telecom Corporate Overview

1. About tw telecom We know your network. But we also know your name

4. tw telecom – A Corporate History 1993 1996 1998 2000 2001 2003 2006 Time Warner Communications Formed as a JV between U S WEST and Time Warner Cable to deliver residential cable telephony (April 1993) Time Warner Communications renamed Time Warner Telecom Larissa Herda named President and CEO (July 1998) Time Warner Telecom completes purchase of GST Communications, expands into 15 new markets (January 2001) Time Warner Telecom announces expansion into 5 new markets - Minneapolis, Chicago, Atlanta, Columbia, Denver (May 2000) Time Warner Telecom completes over 30 network expansions, increasing market footprint to 44 Markets (2003 through 2006) Time Warner Telecom separates from Time Warner Cable (July 1998) Time Warner Telecom acquires Xspedius Communications, expands into 31 new markets (October 2006) 2008 Time Warner Telecom becomes tw telecom (July 1, 2008)

5. Our Customer Focus National Multi-City Multi-Location Regional Multi-City Multi-Location City Wide Multi-Location Single Site Reach Applications Customers Complex Managed Solutions Storage, Distributed Data Centers, DR/BC, Imaging, Enterprise Apps (CRM, ERP), VPN Enhanced Connectivity Medical Image, VoIP VPN Simple Package tw telecom’s “ Sweet Spot” Bringing unique value to the enterprise Connectivity Managed Solutions Fortune 1000 Large > 500 Seats Medium < 500 Seats SME < 100 Seats

9. Products and Services Strategy Voice & Data Integrated Access VoIP Business Class Storage Transport Security & IP VPN Services Managed Services - 24x7x365 Monitoring & Maintenance Hosted Services Anti-Virus Anti-Spam Unified Messaging Transport & Wavelengths DS-1, DS-3, OC-3, OC-12, OC-48, OC-192 Switched Services Digital Trunks, Primary Rate Interface, LD IP Services Internet Access to 1 Gig ERP CRM Storage Supply Chain NLAN Metro Ethernet Foundational Network Services Managed Bundled Services Managed Applications Partner Opportunities Available Today Planned or In Progress Extended NLAN (WAN Service) Robust service portfolio meeting wide range of enterprise applications

11. Telecom Savings with Convergence Convergence Savings - 28% Bandwidth Increase - 1 22% 1 Average Tariffed rate across RBOCs, 36 months 2 Average “street” price for T1 of IP Access 3 Average Tariffed Frame Relay rates across RBOCs, 36 months tw telecom Network PRI (1) $1,220 IP Access (T1) (2) $ 500 Intranet $ 500 (Frame Relay T1) (3) Total $2,220 Site to Site LD $ 300 100 seats @ $3/seat/mo Total $2,520 IP Trunks EIS IP Access Intranet (10 Mb NLAN) Voice VPN (Site to Site LD) Total $1,800

12. Product Portfolio

13. Metro Network Architecture Carrier Hotel/POP End User Bldg MSPP SONET ADM Voice DS-n OC-n Ethernet Internet tw telecom C.O. MSPP SONET ADM MSPP SONET ADM Type II Voice Internet DS-n Class 5 DCS 3/1 VoIP Media Gateway Next Gen Integrated Access MSPP SONET ADM Ethernet Switch Edge IP Routers Core IP Routers DWDM DS-n OC-n 24 x 7 Monitoring/Maintenance, NEBs-3, UPS, Diesel Generator, etc. End User Bldg Voice DS-n OC-n Ethernet Internet MSPP SONET ADM Core Fiber Backbone < 256 Strands Distribution Rings < 24 Strands DWDM System 32 – 64 Waves Up to 10G LEC Office PSTN TWTC SS7 Network IP Backbone Up to OC-192

14. Quality of Service - MPLS tw telecom IP MPLS Backbone Service Class Applications Expedited Forwarding CBR Assured Forwarding VBR - rt Enhanced Delivery VBR – nrt Basic or Best Effort UBR Voice, Signaling, Surveillance DB Replication, Mirroring, Video E-NLAN (Premium) VPN, E-NLAN (Basic) IP Access, e-Mail, VPN CBR Constant Bit Rate Traffic Latency Dependent Applications VBR – rt Variable Bit Rate Traffic Real Time Applications VBR – nrt Variable Bit Rate Traffic Non-Real Time Applications UBR Unspecified Bit Rate Traffic Best Effort Applications

18. Internet Services Suite

22. IP VPN Service Diagram tw telecom

26. Business Voice over IP - VoIP

31. VoIP – Direct SIP IP Trunks

32. VoIP > 100% Bandwidth Increase 20 – 30% Per Month Convergence Savings tw telecom Network

34. Thank You