Optimum vs. DiamondNet

Whether you’re researching Optimum vs. DiamondNet internet service at your current address, comparing internet options for potential locations, or just researching alternatives, this detailed comparison will help you understand which provider best suits you.

Optimum and DiamondNet compete directly in approximately 0.04% of their service areas, with Optimum covering 20,642,705 people nationwide and DiamondNet serving 8,760. Optimum primarily delivers internet through a cable connection; DiamondNet specializes in fiber connections. Jump directly to specific sections using the links below, or continue reading for our comprehensive comparison of Optimum and DiamondNet's availability, speeds, pricing, and customer satisfaction.

Jump to: Availability | Speeds | Plans & Pricing | Customer Reviews | Fees

Optimum vs. DiamondNet | Pros & Cons

Optimum vs. DiamondNet | Availability

Optimum and DiamondNet have distinct coverage footprints across the United States. Our interactive map shows exactly where each provider offers service and where they overlap, helping you understand your options.

Both Providers Available | Optimum Available | DiamondNet Available | No Coverage

Optimum currently offers internet service in 3,357 cities and 358 counties across 21 states, reaching approximately 20,642,705 residents. Their service area includes major markets like New York, NY; Brooklyn, NY; and Bronx, NY. By comparison, DiamondNet serves 8,760 residents in 5 cities and 1 counties in 1 state, with a presence in population centers such as Sallisaw, OK; Aqua Park, OK; and McKey, OK.

Internet availability can vary significantly even within specific cities and zip codes. For the most accurate information about Optimum and DiamondNet at your location, use our address search tool:

Optimum vs. DiamondNet | Speeds & Technology

Optimum and DiamondNet utilize different network technologies to deliver internet service, resulting in varying speed capabilities across their service areas.

Across their service areas, Optimum primarily delivers internet through cable, available to 99.8% of their customers. They also offer fiber to 56.0% of their coverage area. DiamondNet relies on fiber technology, which comprises 100.0% of their network, this is the only connection type they offer.

In terms of potential speeds across the country, Optimum offers higher overall speeds, with speeds for most covered areas averaging 4,787 Mbps compared to DiamondNet's average speed of 1,000 Mbps. When examining their overlapping service areas, Optimum delivers faster speeds in 0.00% of locations where both providers operate, similar speeds in 0.00%, and slower speeds in 100.00%.

The availability of each provider's fastest technology varies significantly by location. Optimum's premium Fiber service reaches 56.0% of their coverage area. Meanwhile, DiamondNet's top-tier Fiber is available to 100.0% of their footprint. Even within the same technology type, speed offerings can vary based on local infrastructure investments.

Optimum vs. DiamondNet | Plans & Pricing

Below are the current internet plans and pricing details for Optimum, sourced directly from FCC-mandated machine-readable broadband labels to ensure transparency and accuracy. Unfortunately, DiamondNet has not complied with FCC requirements to provide their broadband label data, limiting transparency and the ability for consumers to make direct comparisons.

We've included the available Optimum plan details below to help you understand their offerings while we await DiamondNet's compliance with federal transparency requirements.

Optimum Plans

DiamondNet Plans

Most households with 3-5 users need download speeds of at least 100 Mbps for smooth streaming, video conferencing, and everyday internet usage. Larger households or those with heavy users (gamers, 4K streamers, or remote workers) should consider plans with speeds of 300 Mbps or more for optimal performance.

Any prices listed are the base service rates and may not include additional charges such as equipment fees, installation costs, or other service-related expenses. For a comprehensive view of all potential charges, refer to our Fees & Details section below.

Optimum vs. DiamondNet | Customer Ratings & Reviews

Compare how real customers rate Optimum and DiamondNet based on our comprehensive database of verified customer reviews across all service types.

When comparing customer satisfaction, Optimum earns an overall rating of 3.11 / 5 stars from 246 customer reviews, while DiamondNet maintains a 0.00 / 5 rating from 0 reviews. DiamondNet outperforms Optimum by 0.00 points in overall satisfaction. Optimum's best-rated service is their fiber offering at 3.38 / 5 stars, compared to DiamondNet's highest-rated service, , at 0.00 / 5 stars.

When comparing internet providers, remember that advertised prices rarely tell the complete story. Equipment fees alone can add $10-15 per month to your bill, while installation charges, early termination fees, and data overage penalties can significantly increase your total cost of service. Consider these additional costs alongside monthly rates when determining which provider offers the better value for your specific needs.

Optimum vs. DiamondNet | Top Cities

Optimum serves 3,357 cities while DiamondNet is available in 5 cities nationwide. The tables below highlight their largest markets and areas where customers can choose between both providers.