October, 2003 Michael Rouleau SVP – Business Development

Agenda Time Warner Telecom Key Strategies and Direction Time Warner Telecom Product and Roadmap Success

Time Warner Telecom A Unique Set of Network Assets  Greater than 17,000 local and regional fiber route miles across 44 markets  Nearly 3,700 buildings lit with fiber based services  National footprint interconnected with fiber and an IP backbone

Time Warner Telecom’s Houston Network 853 Route Miles of Fiber 179 Buildings On-Net Hundreds of Buildings Passed Houston

Time Warner Telecom Channel and Operations Channel Management Direct Sales Executives –Major Account Executives Carrier Focus –National Enterprise Account Executives Fortune 1,000 –Account Executives “Unfortunate” 5,000 –Associate Sales Executives SME Customers Data Overlay Group –Regional Data Specialists Partner Channel Activities –Cisco Powered Network Metro Ethernet Emphasis Operations Field Operations –Customer Service Support Employees, Field Technicians –Optical, Voice and Metro Ethernet Expertise National Operations Center –Provisioning, Monitoring, Management Tier 1, 2 & 3 –Internet Service NOC –Engineering VoIP IP Services Optical Metro Ethernet

Time Warner Telecom Strong Financial Performance 2003 YTD Financial Results: –$ Million in Revenue –$ Million in POSITIVE EBITDA Financially Disciplined –17 Consecutive Quarters of Positive EBIDTA –Manageable Debt Structure Metro Focused –Fiber facilities based provider –THE last mile solution into many buildings –41 Class 5 switches –12 Markets with Media Gateways and Softswitches Our Revenue Mix Is Increasingly Enterprise Focused… While Data & IP Revenue Grew 10% 2Q03 over 2Q02 Time Warner Telecom 2Q03 Results

Current Communications Industry Trends Enterprise customers are building an increasingly diverse provider base –More than 70% of customers use more than one provider for services Customers are increasingly price conscious –36% of customers are likely to switch local services –75% of Verizon customers and 65% of Qwest customers would switch for better price Data Services offer higher retention –Commoditization is occurring –Customers churn less for price, more for Customer satisfaction issues Morgan Stanley Telecommunications Services Survey, June, 2003

Current Customer Behaviors Customers looking for high quality providers to augment/replace current providers –Must have fairly complete bundle –Multiple provider strategy gives customers options in meeting all of their communications needs –Robust data offer wins Customers demanding better ROI/TCO –VoIP –Metro Ethernet Customers demanding SLAs & QoS (with network tools, monitoring, management and visibility) as “ticket to play” –Managed Services

Market Trends Implications For Time Warner Telecom Metro Ethernet –Market Leadership with comprehensive portfolio strategy 3 Services to meet customers’ applications and spending needs –Product Extensions underway – Long Haul, 10G Target enterprise customers for Intranet Layered services – Internet access and VoIP –Challenge – Reach more buildings “off-net” Voice over IP –Calculated deployment strategy Phase 1 – ISP Offload (3/01) Phase 2 – Class 5 Replacement (1Q02) Phase 3 – Next Gen Service Offerings (under dev)

Native LAN Services Architecture Customer Direct NLAN Point-to-Point Implementation Unmanaged, Aggressively Priced Solution 10, 100 or 1,000 Mbps Switched NLAN Any-to-Any Connectivity Ideal Implementation for Internet Access Fully Managed Solution Protected Network 10, 100 or 1,000 Mbps Ethernet over SONET NLAN Premium Point-to-Point or Multipoint Implementation Protected Service Shared or Dedicated Ring Options Fully Managed Solution 10, 100, 622 or 1,000 Mbps Switched NLAN CD- NLAN SONET NLAN SONET NLAN

Metro Ethernet Service Comparison Time Warner Telecom Bell South SBCQwestVerizonATTMCIXOYipesCogentOn Fiber 10 Mpbs 50 Mbps (SONET) 100 Mbps 150 Mbps (SONET) 300 Mbps (SONET) 622 Mbps (SONET) 1 Gbps Markets 44 Markets 22 States 9 States 14 States 3 States 69 Cities Internet in 10 Cities 5 Markets 40 Cities 10 Cities 21 Cities12 Cities ESCON Fibre Channel Transpare nt LAN Internet Access ICB Available Not Available Source: IDC May, 2003; Time Warner Telecom May, 2003 Metro Ethernet Access Speeds Applications

Product Roadmap

New Technology Influences Strategy and Direction Voice over IP Virtual Private Networking & Security Wireless –WiFi – a/b/g, Storage Networking

Time Warner Telecom Product Direction IntraNet and IP Access Value Add Apps VoIP  IP Centrex, SIP Phone Support, SIP/H.323 Trunks, VoIP LD  Security Services, VPN, etc.  Extended NLAN (Ethernet over MPLS; any-to-any) Switched NLAN (Ethernet over Fiber; any-to-any) NLAN (Ethernet over SONET; PT-PT, MultiPoint) Customer Direct NLAN (PT-PT, 10/100/1,000 Mbps) Complete (or near)  In Progress  Planned (Future)

Long Haul Native LAN Service Leverage Existing IP Backbone, MPLS Fully Meshed Network Between all 44 Markets Scalable – 2 Mbps to 1,000 Mbps Introduce New VoIP Bundles – Long Distance, Voice VPN Long Haul Native LAN TWTC NLAN TWTC IP Backbone Gig-E Ring SONET Ring MPLS Tunnel * Under Development

VoIP - Regional Network TWTC IP Backbone Application Notes Converged Network Infrastructure – Voice and Data Networking Distributed Media Gateways and SS7 Servers Regional Softswitch Call Control Centralized Feature Server Control  Cap and Grow Class 5 Technologies  Efficient Network Deployment Optimizes CapEx Spend  3 Phase Approach To Packet Telephony: - ISP Offload (3/01) - Class 5 Replacement (1/02)- Next Gen VoIP

Future VoIP & NLAN Integration SIP & H.323 Trunking PSTN Packet Telephony Switch Native LAN/Metro Ethernet Gigabit Ethernet SONET TWTC Central Office SIP Phones 10/100 Mb NLAN IP PBX, Gatekeeper  Ethernet transport carries VoIP to the PBX, desktop  Support for SIP & H.323 trunking services  QoS over Switched and SONET based Ethernet services * Under Development

VoIP Long Distance TWTC IP Backbone PSTN Houston PSTN San Diego MPLS Tunnel Packet Telephony Switch ABC Company Corporate HQ & Branch Office Application Notes Leverage IP Backbone to carry long distance voice – market-to- market No impact to customer operational network QoS via MPLS implementation Support for customer on-net traffic Support for Voice VPN Better Connections Between Company Sites! * Under Development

Time Warner Telecom’s Track Record of Success Means… Broad Fiber Optic Reach –Over 17,000 Route Miles of Fiber –Metro Ethernet available to Nearly 3,700 Buildings in 44 Markets Financial Strength to Grow in Tumultuous Market Product and Service Innovation –Industry Leading Data & IP Services Metro Ethernet, IP Networks, VoIP Tomorrow’s Network…TODAY! Time Warner Telecom

Thank You