1. The Sales Partnership How to win with tw telecom Prepared for

2. Agenda The tw telecom story Network and Products Overview

3. 3 The tw telecom story

4. 4 tw telecom Advantage Over 27,000 miles of fiber across 75 markets Over 12,000 fiber connected buildings Over 1000 connected LSOs Over 300 connected Data Centers / Co-los Incorporated in 1998 Largest Independent CLEC in the U.S. – not your direct competitor A proven, reliable and financially sound partner specializing in providing Ethernet connectivity for Metro and WAN applications Incorporated in 1998. Changed name to tw telecom in 2008 Largest Independent CLEC in the U.S. Proven, reliable and financially sound specializing in providing Ethernet, VPN and Managed services for Metro and WAN applications

5. 5 A Fully Differentiated Asset Massive Local Optical Network Connecting nearly 12,000 enterprise buildings Largest competitive fiber based provider (lit buildings) True fiber based alternative to the incumbent We want to build to your customer Robust off-net coverage across country and Int’l

6. 6 2010 Financial Results: $1.273 Billion in Revenue $463.6 Million in POSITIVE M-EBITDA Enterprise Revenues have grown for 34 consecutive quarters and 6.3% for 2010 vs. 2009 Financially Disciplined EBIDTA Positive since 1999 Manageable Debt Structure $476 Million Cash and Equivalents on Hand Reduced revenue churn from 1.3% to 1.0% in 2010 tw telecom maintains a balanced revenue stream While Data Revenue Grew 28% * 2010 over 2009 tw telecom 3Q10 Results *( 1) Adjusted revenue for end of 3Q 2010 and 2009. (2) For a reconciliation to GAAP related numbers please see the supplemental earnings information on the Company’s website, www.twtelecom.com. tw telecom Value Proposition: Financial Stability

7. 7 The tw telecom Customer Experience tw telecom’s commitment to customer service excellence is based on: passionate people in local and national customer service roles customer service choices personalized to your preferences voice of the customer programs that help us capture customer feedback and use it to improve the service we provide With every customer interaction, we strive to Listen, Collaborate and Improve

8. 8 The tw telecom Network and Product Overview

9. 9 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 Nearly 12,000 fiber connected buildings can have Ethernet Services Delivering a differentiated value proposition Highlighting convergence Delivering Data, Internet AND Voice over IP Industry Leader 2010 MEF 9 & 14 Certification 10 Gig, Fractional 10 Gig, Long haul 2006 Awarded “Best in Class” for metro Ethernet Services -Atlantic ACM 2005 Frost & Sullivan Award for product line strategy leadership

10. 10 Ethernet Everywhere 1 to 10Gig! Scalability TCO Interoperability Convergence / Visibility “Improved Speeds ‘n Feeds” Transition and Evolution Metro Frac 10Gig InterMarket Gig+ CoS EooM FinishedE

11. 11 Converged Managed Services Intelligent: Converged MPLS Networks Scalable: Bandwidth & Applications Managed: Secure End-to-end Management Dynamic: Innovative Future-Proof New App Platform Enhanced: Portal Control Cloud Services BC DR Converged Services is an end-to- end, managed solution delivering robust PSTN calling features across the Enterprise Distributed: Multi-Site VPN CoS New Markets Virtual Presence

12. 12 Convergence

13. 13 tw telecom IP VPN Solutions MPLS Standards Based RFC 2547 Compliance Fully Meshed Architecture Entirely Scalable TDM - DS-1 to OC-12 (622 Mbps) Ethernet to Gigabit (1,000 Mbps) Speeds Wide Applications Support 5 Classes of Service supporting Best Effort to Latency Sensitive Voice, Video Compliments Ethernet WAN (City- to-City) Solutions Business Class Capabilities Branch Office Connectivity Multimedia Support VoIP

14. 14 IP/MPLS Core POP  Dual core routers for redundancy and diversity.  Separation of core and aggregation routers simplifies fault management.  Routers built for power, CPU, paths, redundancy (Dual philosophy)  Egress to minimum of (2) different markets protecting against WAN failure  Edge aggregation devices access both backbone routers tw telecom PoP

15. 15 (EXAMPLE) Charlotte Network Overview  Route Miles of Fiber: 1,374  Core Backbone Fiber Count: 1,374 route miles and over 56,000 fiber strand miles  On-Net Buildings: 740  System Platforms  Voice: Lucent 5Ess, Sonus  SONET: Lucent OC-3, OC-12, OC-48, Cisco ONS 15454/15327, OC-48  Ethernet: Dual Cisco 7609  Internet: Core Routers, dual Juniper T320, Core Switches, dual 7606 (GigE & 10GigE uplinks), Edge Routers, Juniper m10, m20 and m320.  Intercity Network  The Carolinas fiber ring extends from Charlotte to Greensboro/Winston-Salem, Raleigh/Durham and Fayetteville.

16. 16 tw telecom Product Portfolio Voice IP, Security & Data Services MPLS, Internet Access, Converged - Scalable to 10 Gig One of the 10 most connected networks worldwide Ethernet Service Suite 2M to 10G – Native Ethernet over Shared and Dedicated Platforms Point-to-Point, Point-to-Multipoint, Multipoint Meshed Private Line Transport, Wavelengths DS-1 to OC-192, 2.5 & 10 G Wavelengths Dedicated or Shared SONET and WDM Infrastructure Market leading portfolio delivers next-generation platform infrastructure Direct peering with over 150 national and international IP providers Regional optical networks offer market-to- market connectivity Providing Regional, National and International Services Voice, SIP & LD Services Available in Market and in many OOM locations Co-location & Infrastructure Services Available in most markets

17. 17 SUMMARY, QUESTIONS