The document provides information about tw telecom, including that it is one of the top three business Ethernet service providers nationwide with over 26,000 miles of fiber routes and 8,800 buildings lit with fiber-based services. It summarizes tw telecom's product portfolio including metro Ethernet services, IP VPN solutions, Internet services, and VoIP. The document also discusses trends driving growth in metro Ethernet and tw telecom's strategy and positioning in the Ethernet market.

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

2. We are now tw telecom Different name. Same obsession with delivering exceptional customer care. Instead of bureaucracy and runaround, you get committed people who listen carefully, respond quickly and make things happen. Maybe that’s why over 80% of our customers say they’d recommend us with confidence—a remarkably high number for any industry, let alone ours.

3. Who is tw telecom? One of the top three business Ethernet service providers nationwide Over 26,000 metro and regional fiber route miles across the country* Over 8,800 buildings lit with fiber-based services* National footprint interconnected with fiber and multipurpose 10 Gig IP backbone What really sets us apart from other providers is a deep-rooted, customer-first mindset at every level of our company, from our CEO on down. *as of 9/30/2008

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

6. Metro Networks - Positive Industry Trends Ethernet has become the preferred method of connecting data networks Metro Ethernet equipment market estimated to triple to $15.5 billion worldwide by 2009(1) Metro Ethernet services revenues expected to increase to $22.5 billion worldwide by 2009(1) Technology key to supporting applications (1) Market Data, Infonetics Research “Ethernet Services, Market Size and Forecast”

7. Our Ethernet Position Leading & innovating with our Ethernet & IP strategy Growth engine for enterprise business Taking share from the incumbents Leveraging our fiber footprint and connected buildings Over 8,500 fiber connected buildings can have Ethernet Services Delivering a differentiated value proposition Highlighting convergence Delivering Data, Internet AND Voice over IP Industry Leader 2006 Awarded “Best in Class” for metro Ethernet Services -Atlantic ACM 2005 Frost & Sullivan Award for product line strategy leadership August, 2007

8. Ethernet Is the New Public Network Pervasive In Enterprises Familiar to Customers Highly Scalable A Logical Migration of LAN Wide Area Frame Relay Ethernet Metro Ethernet offers up to 2200% more bandwidth than Frame Relay 45 Mb 10 Mb 100 Mb 1-10 Gig T-1 56K

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

10. Metro Ethernet Services Portfolio Corporate Facility (Data Center) Enterprise Branch Offices Service portfolio supports wide range of enterprise applications & requirements Internet Access, Voice over IP, National Ethernet, Data Center Storage Scalable bandwidth to 10 Gig Ethernet over Copper facilities for cost effective branch office connectivity tw telecom Ethernet Access Ring Enterprise Regional and Branch Office Buildings T1(s) Access T1(s) Access Gigabit Ethernet tw telecom Metro Fiber Network tw telecom IP Access tw telecom Inter-City Ethernet tw telecom VoIP Network

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

15. Ethernet Services Portfolio Based on its breadth of services and network reach, tw telecom is positioned as a leader in the industry Competitive Advantage Expansive reach: More than 8,600 buildings with tw telecom fiber Relative ubiquity in the market with Type II access Multiple Ethernet service offerings for best fit with customer applications within budget parameters Customer Experience (people & expertise) based on industry leading longevity in Ethernet services Winner of the 2005 Frost & Sullivan Award for Product Line Strategy Leadership! tw telecom

16. Native LAN (NLAN) Portfolio Native Local Area Network (NLAN) Full duplex business-to-business Ethernet connectivity between multiple customer locations Comprehensive Ethernet Product Suite Elite NLAN Point-To-Point Connectivity Point-To-MultiPoint Connectivity MultiPoint Connectivity S NLAN (Switched NLAN) CD NLAN (Customer-Direct NLAN) Extended Native LAN

17. Native LAN (NLAN) Portfolio Choose the Right Service for Your Business Ethernet Private Line (EPL) and Private LAN (EPLAN) services - Elite NLAN Dedicated and Non-Oversubscribed bandwidth to customer. High Availability - SONET-protected NLAN service. Higher Priced Ethernet Virtual Private Line (EVPL), Virtual Private LAN (EVPLAN) services - Switched NLAN Shared and Oversubscribed bandwidth to customer. Standard Availability - Non-SONET protected NLAN service. Lower Priced Ethernet Private Line (EPL) service - CD NLAN Lowest Priced, “No Frills”, basic point-to-point connectivity. Non-managed, No availability guarantees. Various Equipment Types Hybrid SONET Equipment Ethernet Switch Equipment BEST GOOD BETTER Elite NLAN CD NLAN CD NLAN SNLAN Dedicated Bandwidth Shared Bandwidth

18. Internet Services Suite

19. IP Network Services Variety of Connectivity - DS-1 to Gigabit Ethernet T1 (1.5 Mbps), NxT1 – Non-bonded and bonded service (3 Mbps to 6 Mbps) T3 (45 Mbps) – Available in Fractional and Burstable T3 bandwidth levels OC-n (155, 622 Mbps) – Available in Fractional and Burstable bandwidth levels Ethernet – Available in Fractional and Burstable From 2 Mbps to 1,000 Mbps bandwidth levels Robust Service Suite Dedicated, Switched Solution options 24x7 support, local and national Service Level Commitments Primary/secondary DNS/ IP Addressing/ BGP Bandwidth Performance reports via web

20. Ethernet Internet Service Dedicated Internet Access over Full Duplex Native LAN Connection Scalable to 1 Gig 2 Mbps increments to 10 Mbps 5 Mbps increments to 100 Mbps 20 Mbps increments to 1 Gig Easily Connects to Existing Customer CPE tw telecom IP Backbone CD-NLAN S-NLAN Ethernet Over SONET 2 Mbps to 1 Gig tw telecom Native LAN Network

21. IP VPN Solutions – Product Overview tw telecom ’s IP VPN Solutions gives customers control over resource deployment for both Intranet and Extranet Choose how your network is configured Choose the bandwidth you need Choose the level of service wanted for each application Option to pay for ONLY the bandwidth you consume

22. IP VPN Service Diagram tw telecom

23. IP VPN – Class of Service Premium IP VPN, will deliver Class of Service as a value add-on The IP VPN CoS offering delivers five Service Classes Realtime (Highest Priority) Interactive Mission Critical Priority Best Effort (Lowest Priority) A “Service Class” represents a group of traffic with similar network performance requirements

24. IP VPN Performance Monitoring Tools MyPerformance Service visibility through a secure web-based portal Premium (CoS) Customers Password Protected On-demand performance statistics SLA conformance information Network and equipment utilization Trouble ticket submission and tracking (coming soon)

25. IP Backbone OC-192 (10 Gb/s) backbone Diverse / Redundant Connectivity from Backbone to Customer Packet-over-SONET (POS) MPLS 60% utilization target for links and connections “Best of Breed” infrastructure

26. Business Voice over IP - VoIP

27. VoIP – State of the Industry VoIP is poised to be the single largest telephony initiative in decades VoIP Marketplace Activity “ POTS” Substitution Technology leverage supporting competitive attack strategies New entrants Cable companies Residential Technology replacement delivering lower cost infrastructure Long Distance Transport Select New Services Service Provider Convergence driving cost savings Single wire, Branch office connectivity, MAC control, Toll avoidance Intranet centric solutions “ VPN” implementations dependant on best effort IP connectivity Enterprise

28. VoIP “ One Wire to the Desktop” “ Toll Bypass” - Site-to-Site Communications Eliminate Moves, Adds & Change Charges Portability & Telework Key To Disaster Recovery Plans

29. Enterprise VoIP Adoption Increasing trend for enterprise adoption 90%+ of equipment being shipped by 2010 will be VoIP Cisco, Avaya, Nortel comprise nearly half of equipment market Next steps Source: Yankee Group 2005 Economics of IP Communications Survey The Deal Magazine, TechConfidential, July, 2006

30. Our VoIP Product Strategy Rapidly develop and implement new services that create new and incremental sources of revenue Cap Legacy Switching Infrastructure – Grow Next-Gen Capabilities Implemented Traditional Services Driving New Revenue Implement Value Added Services, Creating Customer Loyalty Packet/IP Infrastructure Gateway End User Convergence Value Added Applications Lower Cost Voice Current Capabilities Future Opportunities Digital Trunks PRIs Long Distance Disaster Recovery International Termination Calling Cards IP Trunks Voice VPN (Site-to-Site) VoIP Virtual Number Service VoIP “Features” to Digital PBXs VoIP Network Peering Next-Gen IAD Hosted Telephony Distributed Call Center Mobility IM, Presence Management WiFi Integration HD Voice Unified Messaging Multimedia Conferencing

31. VoIP – Direct SIP IP Trunks

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

33. tw telecom tw telecom’s Track Record of Success Means… Financial Strength to Grow Product and Service Innovation Broad Fiber Optic Reach

34. Thank You