Financial Data and Key Metrics Changes - Revenue for the quarter was $247 million, with an adjusted EBITDA of $68.8 million, reflecting a $1.9 million increase and an adjusted EBITDA margin of 27.8%, up 130 basis points sequentially [16][17] - IPv4 leasing revenue increased sequentially by 14.8% to $14.4 million and increased 42% year over year, with average revenue per IPv4 address sold rising to $0.49, a 63% increase from the beginning of the year [7][8] - Gross margin increased by 790 basis points to 44.6%, with cost of goods sold declining from $31.6 million in the first quarter of the previous year [8] Business Line Data and Key Metrics Changes - Wavelength revenues for the quarter were $7.1 million, a 14% increase year over year, with a sequential increase of 2.2% [5] - Corporate business represented 44.9% of revenues, decreasing 11.4% year over year and 2.1% sequentially, primarily due to the grooming of low-margin off-net connections [18] - NetCentric business represented 37.5% of revenues, increasing 0.7% year over year but declining 1.1% sequentially, impacted by a decline in revenue from a commercial services agreement with T-Mobile [20] Market Data and Key Metrics Changes - On-net revenue was $129.6 million, a year-over-year decrease of 6.5% but a sequential increase of $900,000 or 0.7% [21] - Off-net revenue was $107.3 million, a year-over-year decrease of 9.2% and a sequential decrease of 5.2% [22] - Revenue earned outside the United States was about 18% of total revenues, with foreign exchange impacts noted [24] Company Strategy and Development Direction - The company aims to capture 25% of the North American wavelength market within three years and anticipates achieving a minimum of $20 million in additional cost savings through Q2 2026 [6][8] - Long-term annual revenue growth rates have been adjusted to 6% to 8%, with EBITDA margin expansion targeted at 50 basis points annually [13] - The company is focused on integrating the former Sprint network and legacy Cogent network into a unified network, with ongoing data center conversion programs [25] Management's Comments on Operating Environment and Future Outlook - Management expects to return to total top-line revenue growth by mid-Q3 2025, following the completion of the undesirable revenue purge from Sprint contracts [14][38] - The company acknowledges increased leverage due to recent activities but remains committed to returning capital to shareholders as leverage decreases [42] - Management expressed confidence in the wavelength business trajectory and the quality of the sales funnel, anticipating a funnel growth to 10,000 unique opportunities by year-end [47][81] Other Important Information - The company repurchased approximately 100,000 shares for about $5 million under its stock buyback program, with $17.4 million remaining available [11] - Total CapEx for the quarter was $58.1 million, with a focus on network integration and data center conversion [25][26] Q&A Session Summary Question: Changes in competition within the Wavelength business - Management noted that primary competitors have struggled with provisioning, giving Cogent a competitive advantage in the market [34][36] Question: Update on corporate revenue trends - Management indicated that undesirable revenue from Sprint has been largely purged, and they expect corporate revenue growth to resume by mid-Q3 2025 [38] Question: Dividend growth and leverage targets - The board is committed to returning capital to shareholders and will evaluate the pace of deleveraging to potentially return to dividend growth [42][43] Question: Wavelength ARPU trends - Management expects wavelength ARPU to stabilize around $1,900 to $2,000 as the base continues to grow [55] Question: Data center monetization timing and scale - The company is actively engaging in negotiations for surplus capacity and is motivated to sell this capacity to aid in deleveraging [57]

EXHIBIT 99.1 FOR IMMEDIATE RELEASE Cogent Contacts: For Public Relations: For Investor Relations: Jocelyn Johnson John Chang + 1 (202) 295-4299 + 1 (202) 295-4212 jajohnson@cogentco.com investor.relations@cogentco.com Cogent Communications Reports First Quarter Results and Increases its Regular Quarterly Dividend on its Common Stock Financial and Business Highlights Page 1 of 20 · Service revenue was $247.0 million for Q1 2025 and was $252.3 million for Q4 2024. o Revenue from leasing IPv4 addresses increas ...

Financial Performance - Cogent Communications reported service revenue of $247.0 million for Q1 2025, a decrease of 2.1% from Q4 2024 and a decrease of 7.2% from Q1 2024 [2] - On-net revenue was $129.6 million for Q1 2025, an increase of 0.7% from Q4 2024 but a decrease of 6.5% from Q1 2024 [4] - Off-net revenue was $107.3 million for Q1 2025, a decrease of 5.2% from Q4 2024 and a decrease of 9.2% from Q1 2024 [5] - Wavelength revenue increased to $7.1 million for Q1 2025, up 2.2% sequentially and up 114.0% year-over-year [6][16] - Non-core revenue was $3.0 million for Q1 2025, down from $3.4 million in Q4 2024 and $6.0 million in Q1 2024 [7] Profitability Metrics - GAAP gross profit increased by 27.4% to $33.6 million for Q1 2025 compared to Q4 2024 and increased by 12.5% from Q1 2024 [8] - GAAP gross margin was 13.6% for Q1 2025, up from 11.8% in Q4 2024 and 9.9% in Q1 2024 [9] - Non-GAAP gross profit increased by 12.8% to $110.1 million for Q1 2025 compared to Q4 2024 and also increased by 12.8% from Q1 2024 [10] - Non-GAAP gross margin was 44.6% for Q1 2025, compared to 38.7% for Q4 2024 and 36.7% for Q1 2024 [11] Cash Flow and Expenses - Net cash provided by operating activities was $36.4 million for Q1 2025, significantly up from $14.5 million in Q4 2024 and $19.2 million in Q1 2024 [11] - Selling, general and administrative expenses (SG&A) were $66.3 million for Q1 2025, an increase of 19.0% from Q4 2024 but a decrease of 5.4% from Q1 2024 [13] Customer Metrics - Total customer connections decreased by 9.1% year-over-year to 120,731 as of March 31, 2025, and decreased by 2.1% from December 31, 2024 [20] - On-net customer connections decreased by 0.9% year-over-year to 86,781, while off-net customer connections decreased by 20.4% year-over-year to 27,508 [20] - Wavelength customer connections increased by 18.2% sequentially to 1,322 as of March 31, 2025 [20] Strategic Developments - Cogent entered into a Commercial Agreement with T-Mobile for colocation and connectivity services, generating $0.7 million in revenue for Q1 2025 [2] - The company closed its issuance of $174.4 million of its 6.6% IPv4 Securitized Notes on April 11, 2025 [16] - Cogent approved a quarterly dividend increase to $1.01 per share for Q2 2025, marking the fifty-first consecutive quarterly dividend increase [23]

Core Insights - Cogent Communications (CCOI) is expected to report a quarterly loss of $1.05 per share, marking an 18.6% increase in losses compared to the same period last year [1] - Analysts forecast revenues of $250.18 million, reflecting a 6% year-over-year decline [1] - The consensus EPS estimate has been adjusted downward by 2.7% over the past 30 days, indicating a reassessment of projections by analysts [1][2] Revenue Projections - Corporate Revenue is projected to reach $111.50 million, indicating a year-over-year decrease of 10.7% [4] - Revenue from Enterprise is estimated at $44.93 million, suggesting an 8.9% decline year over year [4] - Net-Centric Revenue is expected to be $93.76 million, showing a slight increase of 1.9% year over year [4] Customer Connections - Revenue from Wavelength is predicted at $8.03 million, representing a significant increase of 141.5% from the previous year [5] - Customer Connections - On-net are expected to total 87,842, slightly up from 87,574 year over year [5] - Customer Connections - Non-Core are projected to be 5,576, down from 10,037 in the same quarter last year [6] Additional Metrics - Customer Connections - Off-net are expected to reach 30,698, down from 34,579 year over year [6] - Total Customer Connections are estimated at 124,494, compared to 132,883 in the same quarter last year [7] - ARPU - Off-Net is projected at $1,519.07, up from $1,106 year over year [7] On-Net Metrics - Total On-Net buildings are expected to reach 3,481, compared to 3,321 in the same quarter last year [8] - ARPU - On-Net is estimated at $546.31, slightly up from $525 year over year [8] - Net Adds - Total On-Net Buildings are projected to be 28, down from 44 year over year [8] Stock Performance - Over the past month, Cogent shares have returned +8.6%, compared to the S&P 500 composite's +10.6% [9] - The company holds a Zacks Rank 3 (Hold), indicating expected performance in line with the overall market [9]

Core Viewpoint - Cogent Communications (CCOI) is anticipated to report a year-over-year increase in earnings despite lower revenues for the quarter ending March 2025, with actual results being a significant factor influencing its near-term stock price [1][2]. Earnings Expectations - The upcoming earnings report is expected to show a quarterly loss of $0.90 per share, reflecting a year-over-year change of +30.2%, while revenues are projected to be $250.18 million, down 6% from the previous year [3]. - The consensus EPS estimate has been revised 2.69% lower in the last 30 days, indicating a reassessment by analysts regarding the company's earnings outlook [4]. Earnings Surprise Prediction - The Zacks Earnings ESP model indicates that the Most Accurate Estimate for Cogent is lower than the Zacks Consensus Estimate, resulting in an Earnings ESP of -15.64%, suggesting a bearish sentiment among analysts [10][11]. - Despite the negative Earnings ESP, the stock holds a Zacks Rank of 3, complicating predictions of an earnings beat [11]. Historical Performance - In the last reported quarter, Cogent was expected to post a loss of $1.22 per share but actually reported a loss of $0.91, achieving a surprise of +25.41% [12]. - Over the past four quarters, the company has exceeded consensus EPS estimates three times [13]. Conclusion - Cogent does not appear to be a strong candidate for an earnings beat based on current estimates and trends, but investors should consider other factors when making decisions regarding the stock ahead of the earnings release [16].

Group 1 - Cogent Communications Holdings, Inc. will host a conference call on May 8, 2025, at 8:30 a.m. (ET) to present its operating results for the first quarter of 2025 [1] - A press release announcing the operating results will be issued at 7:00 a.m. (ET) on the same day [1] - The conference call is open to all parties, with specific dial-in numbers provided for U.S., Canadian, and international callers [1] Group 2 - Cogent is a facilities-based provider of low-cost, high-speed Internet access and private network services, primarily targeting bandwidth-intensive businesses [2] - The company operates an all-optical IP network across 264 markets globally [2] - Cogent is headquartered in Washington, D.C., and offers contact information for inquiries [2]

Company Overview - Cogent Communications (CCOI) shares increased by 6.3% to close at $53.83, following a notable trading volume, despite a 27.6% loss over the past four weeks [1] - The company is a leading provider of high-speed Internet access, benefiting from cost-effective operations and a streamlined product offering [2] - Cogent has a strong network presence in major North American cities and carrier-neutral colocation centers in North America and Europe, which supports high Internet traffic levels [2] Market Factors - The U.S. Government's decision to suspend higher tariffs for most countries for 90 days, excluding China, has positively impacted investor confidence in Cogent [2] - The consensus EPS estimate for Cogent's upcoming quarterly report is a loss of $0.88 per share, reflecting a year-over-year change of +31.8%, with expected revenues of $252.09 million, down 5.3% from the previous year [3] Earnings Estimates - Over the last 30 days, the consensus EPS estimate for Cogent has been revised 6% higher, indicating a potential for price appreciation [4] - Empirical research suggests a strong correlation between earnings estimate revisions and near-term stock price movements, highlighting the importance of monitoring these trends [3][4] Industry Context - Cogent belongs to the Zacks Wireless National industry, which includes other companies like T-Mobile (TMUS), that also experienced a recent stock price increase [4] - T-Mobile's consensus EPS estimate has changed by +0.2% to $2.47, representing a year-over-year change of +23.5% [5]

Group 1 - Cogent Communications Holdings, Inc. has priced $174,400,000 of secured IPv4 address revenue term notes with a 6.646% interest rate, expected to be repaid over five years [1] - The net proceeds from the offering will be used for general corporate purposes, with the transaction expected to close around April 11, 2025, pending various conditions [2] - The notes are being offered only to qualified institutional buyers and certain accredited investors, and will not be registered under the Securities Act [3] Group 2 - Cogent is a facilities-based provider of low-cost, high-speed Internet access and private network services, operating in 264 markets globally [5]

Core Insights - Cogent Communications' international operations are crucial for understanding its financial strength and growth potential [1][2] - The company's reliance on international markets offers insights into its earnings sustainability and growth trajectory [2][10] Revenue Performance - Total revenue for the quarter was $252.29 million, reflecting a decrease of 7.3% [4] - Africa contributed $0.14 million (0.06%) with a surprise decline of -11.88% compared to expectations [5] - Europe generated $29.26 million (11.60%), exceeding expectations by +5.01% [6] - Oceania accounted for $5.97 million (2.36%), also surpassing expectations by +5.22% [7] Future Projections - Analysts project total revenue of $254.22 million for the current fiscal quarter, a decline of 4.5% year-over-year [8] - For the entire year, total revenue is forecasted at $1.04 billion, an improvement of 0.2% from the previous year [9] - Expected contributions from regions for the year include Africa at 0.1% ($0.67 million), Europe at 11.4% ($118.43 million), and Oceania at 2.3% ($23.71 million) [9] Market Dynamics - The complexities of global interdependence and geopolitical risks are significant factors affecting Cogent's international revenue [3][11] - Tracking international revenue trends is essential for projecting the company's future trajectory [10]

Network Infrastructure - The company operates a network with approximately 20,800 route miles of owned fiber optic cable in the continental United States and a portfolio of owned and leased properties totaling approximately 1.9 million square feet[21]. - The company serves 8,250 access networks and 47,371 corporate customer connections, enhancing its service reliability and speed of traffic delivery[33]. - The company operates 3,453 on-net buildings and serves 264 metropolitan markets across multiple continents[48]. - The company operates 104 data centers, 48 of which were converted from facilities acquired with the Sprint Business, offering 177 MW of power[32]. - The company has agreements with over 700 carriers, providing last mile network access to over 6 million commercial buildings[41]. - The company operates primary network operations centers in Washington, D.C., Herndon, Virginia, Overland Park, Kansas, and Madrid, Spain, providing continuous operational support for its network[61]. - The company has established settlement-free peering arrangements with 23 other Tier 1 ISPs, enhancing its reputation and reducing operational costs[59]. Customer Base and Market Strategy - Following the acquisition of Sprint Communications, the company expanded its customer base to include approximately 1,300 enterprise and net-centric customers[21]. - The company aims to grow its corporate customer base by providing dedicated internet access and private network services, emphasizing faster speeds and rapid installation times[35]. - Following the acquisition of the Sprint Business, the company is focusing on larger enterprise customers and has formed dedicated sales teams for this segment[37]. - The direct sales force included 843 full-time employees as of December 31, 2024, with a focus on corporate, net-centric, and enterprise markets[84]. - The company has established an enterprise sales team to focus on retaining and attracting enterprise customers, which may require customized solutions[118]. Financial Performance and Risks - The company issued $206.0 million aggregate principal amount of 7.924% IPv4 Notes, with an anticipated term ending in May 2029[22]. - The company's total indebtedness at par value was $2.0 billion as of December 31, 2024, including $500 million of 2026 Notes and $450 million of 2027 Notes[191]. - The top 25 customers represented approximately 17.6% of the company's revenue for the year ended December 31, 2024, indicating a significant reliance on a limited customer base[182]. - The company anticipates revenue declines from acquired customers as contracts expire and are replaced with standard contracts at lower rates[127]. - The company may incur additional debt and interest expenses from acquisitions, which could materially affect its financial condition[126]. - The company faces potential adverse effects from new tariffs, including a 25% tariff on imports from Canada and Mexico and a 10% tariff on imports from China, which could increase equipment costs[184]. Operational Challenges - The integration of the Sprint Business may disrupt operations and management, with risks including failure to achieve financial goals and customer retention challenges[106]. - The company is experiencing competitive challenges in attracting employees due to its in-office work policy compared to competitors offering hybrid work options[119]. - Data center expansions involve significant risks, including global supply chain challenges and inflation, which could adversely impact financial condition and operational results[128]. - The company is facing escalating construction costs due to rising labor and raw material expenses, which may hinder planned expansion projects[130]. - The selection of suitable sites for data center expansion is critical, with potential challenges in power availability and equipment shortages[129]. Regulatory and Compliance Issues - The company operates under various regulations, including data privacy and net neutrality laws, and believes it complies with all applicable regulations[95]. - Compliance with privacy regulations like GDPR may incur significant costs and liabilities, affecting the company's operations and reputation[178]. - Changes in laws and regulations could impose additional costs and inhibit the company's ability to operate as a low-cost carrier[180]. Cybersecurity and Risk Management - Cybersecurity risks are evolving, and the company may face significant negative consequences from potential cyber-attacks[147]. - The company has a cybersecurity risk management program integrated into its overall enterprise risk management, designed to protect critical systems and information[203]. - The company has not identified risks from known cybersecurity threats that have materially affected its operations or financial condition[205]. Environmental and Social Governance - There are potential reputational and legal risks associated with the company's commitments to environmental, social, and governance (ESG) matters, which could adversely affect its business[136]. - Climate change poses risks to infrastructure and service provision, potentially leading to increased operational costs and revenue losses[165].