NASDAQ

CCOI

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company overview

Cogent is a leading global

provider of Dedicated

Internet Access.

• Founded in 1999; publicly traded company (NASDAQ: CCOI). Headquartered in Washington, DC.

• Cogent’s network carries ~20% of all Internet traffic and serves 190 markets in North America, Europe and Asia

• We provide Internet access, Ethernet transport and colocation services.

• Currently serves over 46,200 customer connections.

• Independent third parties rank Cogent as one of the leading ISPs in the world: Largest ISP by AS connectivity (Fixed Orbit & CAIDA).

• Provides High Quality, Competitively Priced Service

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• 2,125 On-Net buildings

• 69% multi-tenant office buildings

• 31% carrier neutral and Cogent data centers

• Agreements with 250+ building owners (REITs)

• 50 Cogent data centers with 550,000+ square feet

• 610+ metro networks; 27,200+ metro fiber miles

• 59,000+ intercity fiber route miles

• Long-haul capacity up to 580 Gbps

• Transatlantic capacity over 800 Gbps across multiple cables/routes

• Interconnected with 5,270+ different networks

broad, deep, scaleable network

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network map – n. america & asia

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network map – europe

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Leading provider to professional services firms

Corporate

Aegis MediaA.T. KearneyAccentureBechtelBlue CrossBusiness WireCanonC-SPANCB Richard EllisConcord EnergyCisco SystemsDellDocs. w/o BordersEdelman Pub. Rel.Estee LauderHyatt Corp.Johnson & JohnsonKPMGMcGraw-HillMcKinsey & CoMitsubishi IntNASCARNBC UniversalNeiman MarcusNY TimesNorthrop GrummanPR NewswireSAPXerox

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‘04 ’04

Customer Since

Customer Since Law Firm

Alston & BirdArnold & PorterBaker & McKenzieBaker BottsBingham McCutchenCleary GottliebCravath Davis PolkDebevoise/PlimptonFulbright Jaworski Greenberg TraurigHogan LovellsK&L GatesKing & SpaldingLatham & WatkinsMorrison & FoersterMcDermott WillO'Melveny & Myers Orrick HerringtonPaul Weiss RifkindPillsbury WinthropQuinn EmmanuelReed SmithRopes & GraySimpson Thacher SkaddenWeil GotshalWhite & CaseWilmer Cutler

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Customer SinceFinancial

ABN AmroAllen & CompanyBain & CompanyBank of AmericaBank of Nova ScotiaBaupost GroupBlackRockBNP Paribas Brookfield FinancialCanaccordCerberus CapitalChicago Stock ExchCredit AgricoleCIDaiwa SecuritiesDeloitte & Touche LLPDepository Trust Evercore FinancialEvercore PartnersGoldman SachsGreenhill & Co.ING FinancialJohn HancockJP MorganKKRSociete GeneraleSun TradingSynovus FinancialUBSUS Dept of Treasury

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corporate segment21,500+ customer connections

• Law firms• Financial services• Consulting services• Corporations

Universities

Boston CollegeCarnegie MellonColumbia Univ.Cornell UniversityDANTEDePaul UniversityDuquesne Univ.George Wash.Georgetown Univ.Georgia TechHarvard Univ.Hofstra Univ.Johns HopkinsMITNorthwestern Univ.Notre DamePrinceton Univ.Queen’s Univ.Ryerson Univ.Suffolk Univ.TempleTufts UniversityUniv. of ChicagoUniv. of DelawareUniv. of Illinois Univ. of Mass.Univ. of Penn.Univ. of S. Florida Univ. of TorontoVillanova

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Service Providers

AboveNet / ZayoCavalier TelephoneCharter Comm.Cincinnati BellCogeco Cable CanadaColt TelecomCox CommunicationsCricket Comm.Frontier NetworksH3G (EU)Iliad/Free (FR)InternapKDDIKeynote SystemsKorea TelecomMaroc TelecomNetia (PL)ONO (ES)Orange (EU)Paetec / WindstreamPeerless NetworkPakistan TelecomPortugal TelecomPrimus RostelecomSaudi Telecom Co.SFR (FR)Telkom South AfricaTPG Internet (Australia)Vodafone Ireland

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‘’06‘07’07‘11‘14’06’03

Application Businesses

AdobeApple BBC AmericasCarboniteCareerBuilder.comDirecTVDropboxE! OnlineEA Electronic ArtseBayFiberring/Leaseweb (NL)GoDaddyGoogleGrouponHighwindsKasperskyMicrosoftNetflixNFLOracle PBSReal NetworksShazamSkypeSpotifyTruliaTwitterWebzillaYahooYouTube

netcentric segment24,600+ customer connectionsLeading provider to bandwidth-intensive organizations

Customer Since

Customer Since

Customer Since

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• ISPs• Universities• Online gamers• ASPs

corporateOn-Net

“… price/performance is absolutely mind blowing ... easy sell to upper management …”

"... the service is near perfect, lightning fast speed, unparalleled reliability, superior customer service …”

"... speed on installs ...“

Off-Net

“… overall start up process went very smoothly … well informed on each step.”

“... you keep your clients informed about changes and system maintenance dates ….”

“… proactive - they know I'm down … sometimes before I know I'm down …”

netcentricNorth America

“Reliable connection, reasonable pricing, extensive network, good support.“

“You’re not going to find a better price anywhere else! It’s true!”

“Cogent is a very professional team. Everything they promised before our signing the contract was delivered on time and hassle free.”

Europe

“One of the best price / performance ratios in the market.”

“Good service, fast provisioning …”

“High quality of service, professional, customer-oriented and extensive experience.”

customer quotes

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NetCentric Market Internet core backbone

Corporate Market Local distribution

Cogent competes primarily with incumbents (ILECs) and resellers offering T1 or T3 connectivity

Cogent competes primarily with other backbone suppliers

why customers choose cogent

NetCentric Pricing Dynamics

Corporate Pricing DynamicsPrice per connection is relatively equivalent

• Quality of connection is substantially superior• Fiber based, 65:1 to 2.5:1 throughput advantage• True network independence from telco facilities• All On-Net connections are ring protected, not single

threaded

Price is 50% of market average

• Quality of connection is equivalent• Speed is equivalent

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cogent’s competitive advantage

Cogent is the lowest cost

provider.

• Low cost, efficient network is approximately 32% utilized

• $14 billion of invested capital ($4 billion of PP&E) purchased for $60 million

• More reliable and less costly than IP networks overlaid on traditional telephone networks

• IP only product set

• Simple product set with low cost of operations and provisioning

• High sales productivity

• Lower selling cost due to aggressive pricing model

• Gaining market share as an efficient operator

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Delivery• On-Net delivery in buildings directly connected to Cogent’s

network• > 1,460 Corporate Office Buildings (over 797 million sq. ft.)

• Off-Net delivery at Customer Premises: Cogent connects you to its fiber network via local loop

ApplicationsCorporate Customers – from small businesses to multinational

corporations• Dedicated connections: A port on our network reserved for you

ensures you never experience slowdowns at peak usage times• Take connections directly at your office premises or in data

centers as a complement to your world-wide WAN solution

Service Level Agreement• Network Availability 100%• Packet Delivery > 99.9%• Network Latency < 45 ms Intra North America

< 35 ms Intra Europe< 85 ms Transatlantic< 120 ms Transpacific

• Installation GuaranteeOn-Net 17 business days or lessOff-Net 90 business days or less

Network Operations & Customer Support• Local Support and Online Account Mgmt available 24x7x365• Facilities located in Washington, DC | Herndon, VA

Frankfurt – Germany | Madrid – Spain | Paris – France• Average answer time is less than 30 seconds for support calls

products: dedicated internet access InterfacesOn-Net:• FastE: 100 Mbps• GigE: 200 Mbps – 1 Gbps• 10GigE: 2 Gbps – 10 GbpsOff-Net:• Fast Ethernet: 10, 20, 50 & 100 Mbps• Gigabit Ethernet: 200 Mbps – 1 Gbps• 10GigE: 2 Gbps – 10 Gbps

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Delivery• On-Net delivery in more than 750 data centers worldwide

• 50 Cogent Data Centers• > 700 Carrier Neutral Data Centers

• Off-Net delivery at Customer Premises

ApplicationsNetcentric Customers – ISPs / Application & Content Providers• Deliver high performance to end-users, guaranteed• Low ping times and high transfer rates for all types of Internet usage

from fractional FastE and up to multiple 10 GigE configurations

Features• Single worldwide Tier-1 AS 174• Flat or burst billing options• BGP (incl. multiple sessions) or Static Routing Configuration• Primary / Secondary DNS• IPv6 Native / Dual-Stack• Black Hole Server• Link Aggregation

Network Operations & Customer Support• Local Support and Online Account Mgmt available 24x7x365• Facilities located in Washington, DC | Herndon, VA

Frankfurt – Germany | Madrid – Spain | Paris – France • Average answer time is less than 30 seconds for support calls

Interfaces• Fast Ethernet: 10 - 100 Mbps• Gigabit Ethernet: 100 Mbps – 1 Gbps• 10 Gigabit Ethernet: 500 Mbps – 10 Gbps• STM-N & OC-N: 155 Mbps – 10 Gbps

Service Level Agreement• Network Availability 100%• Packet Delivery > 99.9%• Network Latency < 45 ms Intra North America

< 35 ms Intra Europe< 85 ms Transatlantic< 120 ms Transpacific

• Installation GuaranteeOn-Net 17 business days or less

• Proactive outage notification within 15 minutes

products: ip transit

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products: ethernet services

Delivery• On-Net delivery in most of Cogent’s 2,125 On-Net buildings

• 50 Cogent Data Centers, >700 Carrier Neutral Data Centers, and >1,460 Corporate Office Buildings

• Off-Net delivery at Customer Premises

Products• Point-to-Point: Connect your offices and data center locations with

ease• VPLS: Fully mesh all of your sites into a virtual private LAN cloud

Service Level Agreement• Network Availability: 100% • Installation Guarantee

• On-Net: 17 business days or less• Off-Net: 40 – 90 business days

Network Operations & Customer Support• Local Support and Online Account Mgmt available 24x7x365• Facilities located in Washington, DC | Herndon, VA

Frankfurt – Germany | Madrid – Spain | Paris – France• Average answer time is less than 30 seconds for support calls

ApplicationsNetcentric Customers (ISPs / Application & Content Providers)• Interconnect distant network locations• Remote access to public peering pointsCorporate Customers• Private and secure full speed LAN extension • Enabler for bandwidth intensive distributed applications • Remote storage or Disaster Recovery

Features• Ethernet over MPLS• Reach and Port Based Billing: National, International, Transatlantic,

Transpacific and per port bandwidth assignment• Point-to-Point (VLAN-based Connectivity)• VPLS (Any-to-Any Connectivity)• Q-in-Q / Jumbo Frames available in many locations

Interfaces• FastE: 100 Mbps• GigE: 200 – 1,000 Mbps• 10GigE: 2,000 – 10,000 Mbps

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ApplicationsNetcentric Customers (ISPs / Application & Content Providers)

Host telecommunications equipment & Servers (or use Cogent’s Utility Computing Servers) in a secure and state-of-the-art data center environment, right in the heart of the Internet

Corporate CustomersHouse your primary mission-critical IT environment (servers, mainframes, storage devices) or your disaster recovery environment in a highly secure and perfectly connected data center environment

Delivery (in one of Cogent’s 50 Data Centers)North AmericaAtlanta, GA Boca Raton, FLBoston, MAChicago, IL (2)Cleveland, OHColumbus, OHDallas, TXDetroit (Troy), MIDenver, COHerndon, VAHouston, TXLos Angeles, CA (2)Louisville, KY

Miami, FL (2)Milwaukee, WIMinneapolis, MNNew Orleans, LANew York, NY (2)Oakland, CAOrange County CAPhoenix, AZSan Diego, CATampa, FLToronto, ONVienna, VAWashington, DC

EuropeFrance Paris (2) Lille Nantes Toulouse Grenoble Nice Sophia Montpellier Strasbourg Bordeaux Rouen Rennes

Tours Poitiers Dijon

Germany Frankfurt

The Netherlands Amsterdam

UK London

Spain Madrid

Features / Technical Characteristics• Configurations

• Stand-Alone Footprint / Rack or Cage / Suite• Bundle with Internet or Ethernet connectivity

• Fully Redundant Power Supply• AC (110 / 230V) or DC (48V) • Redundant UPS, Battery Back-up and Generators

• Fire Detection and Suppression Systems• Above and below floor smoke heads• Central monitoring• Inert gas tanks (FM 200)

• Air Conditioning• Temperature and Humidity Control

• Access Control• Intercom and Biometric Keycard systems

• Helping Hands Option (in select data centers)• Rapid Installation• Customer Support

• Available 24x7x365• Global Customer-Focused NOC in Washington, DC• Local NOCs in Paris, Madrid, Frankfurt

• Utility Computing (in select data centers)• Dual quad core XEON proc; 2.4 Ghz; 12M Cache, Turbo, HT• 24GB memory @ 1333Mhz • Up to 6 x 2TB SATA storage drives (RAID 1, 5, 6 or 10)• Up to two Gigabit Ethernet ports per server• Linux OS (e.g. CentOS, Debian, FreeBSD) on mirrored 500GB

disks

products: colocation

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Cogent’s Network Connects Directly to the Server in Your Office

• Connects directly into your office location.

• Each building or data center, down to individual customer connections, receives dedicated capacity – so you will never share your bandwidth.

• You receive an RJ-45 or fiber hand off, creating a “plug and play” installation.

• Cogent guarantees 17 day installation for On-Net services.

network end-to-end service

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Dedicated, Non Oversubscribed Internet Connections Means No QoS is Needed

• Large capacity network generates ample bandwidth

• Ample bandwidth eliminates QoS issues like dropped packets and latency

• Cogent carries approximately 100 Petabytes per day of pure Internet traffic on its network. That is equivalent to a person watching back-to-back movies on the Internet for 15,870+ years - 24 hours a day, 7 days a week.

network virtually unlimited capacity

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Ring Architecture Guarantees Connectivity Despite a Fiber Cut

What The Ring Looks Like How The Ring Works

Cogent Hub Building

Multi-Tenant Office Buildings

IP over DWDMMetro Ring

Cogent Backbone

• Cogent’s award-winning ring design provides physical diversity at the metro and backbone levels.

• In the event of a fiber cut anywhere on the ring, the routers redirect your traffic around the ring away from the cut, restoring your connectivity from the other direction and ensuring your data is not lost.

Despite a fiber cut, your connection remains intact

Dedicated bandwidth is devoted to each building Cogent Backbone

network ring protected architecture

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Cogent’s SLA is One of the Best in the Industry

• Cogent maintains 24x7 customer support, with customer focused NOCs in Washington, Paris, Frankfurt and Madrid.

• We proactively notify our Dedicated Internet Access and IP Transit customers within 15 minutes of an outage on their circuit.

Global Network Availability 100.0%

Packet Success Rate > 99.9%

Latency

Intra North AmericaIntra EuropeTransatlanticTranspacific

< 45 ms< 35 ms< 85 ms

< 120 ms

Service Delivery (On-Net) < 17 business days

Service Delivery (Off-Net) 40 – 90 business days

network service level agreement

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Cogent Is The Most Interconnected Autonomous System In the World

CCOI

5,270+

13,600+64.2+ Tbps

Peering Capacity

Peering Sessions

Directly Connected Networks (AS)

• Cogent’s network directly interconnects with 5,270+ networks, including virtually all major content and access networks in the world.

• Cogent executes a selective peering strategy, consisting of extensive private peering agreements with major carriers. These agreements provide Cogent customer traffic with a more direct route to its destination, thereby improving their experience on the Internet.

network peering

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Cogent Provides Excellent Data Center Facilities

• Cogent owns 50 state-of-the-art data centers where affordable pricing and secure facilities provide you with a great alternative to hosting your own equipment.

• Cogent also connects to an additional 700+ carrier neutral colos, providing excellent opportunities for data storage, disaster recovery, data backup and redundancy.

network cogent data centers

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highlights

Cogent is a leading global

Internet Service

Provider.

Leading global Internet service provider measured by:

• Peers connected – Traffic volume – Price / Performance ratio

• Independent, low-cost international network

• Network footprint targeted at high traffic locations

• Very strong balance sheet

• Experienced management team

• Substantial network capacity

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why buy from cogent?

Cogent’s big bandwidth

allows you to work faster,

better and smarter

• Entrust your Internet to Cogent’s IP specialists, not telecom general practitioners.

• Cogent delivers with quality:

• Top 5, Tier 1 provider that carries ~20% of the world’s Internet traffic.

• Best-in-class quality network and customer support, backed by SLAs with credits.

• Service delivery is fast and friendly.

• With approximately 46,200 customer connections, Cogent’s customers are overwhelmingly fans of our service.

• Best Value: Cogent’s low prices save you money while improving your network quality

Cogent Communications , Inc.