Best Internet Providers in Stamford, CT
Compare 11 internet providers serving 135,470 Stamford residents. Multiple fiber, cable, and 5G options compete across the city.
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Frontier Fiber 1-855-981-6281Quick Answer: Best Internet in Stamford
Frontier Fiber is the best internet provider in Stamford for most residents, covering 65% of the city with symmetrical fiber speeds up to 5 Gbps and no contracts. Optimum is a close second at 64.6% coverage with the fastest max speed in Stamford at 8 Gbps. AT&T Fiber covers 53.1% with reliable symmetrical service. Stamford's proximity to New York City drives strong provider competition, benefiting consumers with lower prices and more choices.
Key Takeaways
- Best overall: Frontier Fiber for reliability; Optimum for max speed
- Best value: T-Mobile 5G at $40-50/mo flat, or Optimum's intro pricing
- Fiber competition: Frontier, Optimum, AT&T, Xfinity, Verizon Fios
- Best for NYC commuters: Fiber from Frontier or Optimum for remote work
- 11 providers: Exceptional competition in Fairfield County
Stamford Internet Providers Comparison
Verified providers serving Stamford as of February 2026. Coverage percentages based on FCC data.
| Provider | Technology | Max Speed | Starting Price | Data Cap | Contract | Call Now |
|---|---|---|---|---|---|---|
| Frontier Fiber | Fiber/DSL | 5 Gbps | $50/mo | None | No | 1-855-981-6281 |
| Optimum | Fiber/Cable | 8 Gbps | $40/mo | None | No | 1-866-200-7273 |
| AT&T Fiber | Fiber/DSL | 5 Gbps | $55/mo | None | No | 1-855-850-5977 |
| T-Mobile 5G | 5G Fixed Wireless | 245 Mbps | $40-50/mo | None | No | 1-844-275-9311 |
| Xfinity | Cable/Fiber | 2 Gbps | $35/mo | 1.2 TB | No | 1-844-963-0138 |
| Verizon Fios | Fiber/5G | 2 Gbps | $50/mo | None | No | 1-855-387-1456 |
| Spectrum | Cable | 1 Gbps | $30/mo* | None | No | 1-844-481-5997 |
| HughesNet | Satellite | 100 Mbps | $39.99/mo | Limited | 2-year | 1-855-543-5405 |
| Viasat | Satellite | 150 Mbps | $39.99/mo | Unlimited* | No | 1-855-463-9333 |
| Starlink | LEO Satellite | 250 Mbps | $120/mo | Soft cap | No | Online only |
*Spectrum first-year promo. Viasat Unleashed plan. Prices before taxes and fees.
Top Stamford Internet Providers: Detailed Reviews
Frontier Fiber Internet in Stamford
65% CoverageFrontier Fiber is the most widely available fiber provider in Stamford at 65% coverage. Plans start at $50/month for 500 Mbps symmetrical and scale to 5 Gbps. With no contracts, no data caps, and price-lock guarantees, Frontier is a top pick for Stamford professionals who work remotely and commute to NYC.
Choose Frontier If:
- You want reliable symmetrical fiber for remote work
- Predictable pricing with no annual contracts matters
- You need speeds up to 5 Gbps
Avoid Frontier If:
- Only DSL (not fiber) is available at your address
- You want the absolute fastest option (Optimum has 8 Gbps)
Optimum Internet in Stamford
64.6% CoverageOptimum provides both cable and fiber service in Stamford, reaching 64.6% of addresses. The fiber network offers speeds up to 8 Gbps, the fastest residential option in the city. Plans start at $40/month for 300 Mbps. Optimum is aggressively expanding its fiber footprint across Fairfield County.
Choose Optimum If:
- You want the fastest speed available in Stamford (8 Gbps)
- Competitive entry pricing at $40/month appeals to you
Avoid Optimum If:
- You prefer straightforward, no-promo pricing
- You're outside Optimum's fiber footprint and only cable is available
AT&T Fiber Internet in Stamford
53.1% CoverageAT&T Fiber covers 53.1% of Stamford with symmetrical speeds up to 5 Gbps and no data caps. Plans start at $55/month for 300 Mbps. AT&T is a strong third fiber option in Stamford, particularly in neighborhoods where Frontier or Optimum may not yet have expanded.
Choose AT&T If:
- You want a national provider with consistent service quality
- Symmetrical fiber speeds and no data caps are priorities
Avoid AT&T If:
- Only DSL service is available at your address
- Frontier or Optimum offer lower pricing at your location
Stamford Internet Speeds and Prices
| Speed Tier | Frontier | Optimum | AT&T Fiber | Xfinity | Verizon Fios |
|---|---|---|---|---|---|
| 300 Mbps | - | $40/mo | $55/mo | $35/mo | $50/mo |
| 500 Mbps | $50/mo | $60/mo | $65/mo | $65/mo | - |
| 1 Gbps | $70/mo | $80/mo | $80/mo | $80/mo | $75/mo |
| 2 Gbps | $100/mo | $120/mo | $110/mo | $120/mo | $120/mo |
| 5 Gbps | $155/mo | $180/mo | $180/mo | - | - |
How Much Speed Do You Need?
- 1-2 people, light use: 100-300 Mbps
- 3-5 people, moderate use: 500 Mbps
- Remote work + gaming: 1 Gbps
- Content creators: 2-5 Gbps fiber
Learn more: how much internet speed you need.
Internet Service in Stamford: Local Market Overview
- Population: 135,470
- CBSA: 14860 (Bridgeport-Stamford-Norwalk)
- Providers: 11
- Fiber providers: Frontier, Optimum, AT&T, Xfinity, Verizon Fios
Stamford is one of the most competitive broadband markets in Connecticut, driven by its role as a corporate hub for financial services, media, and technology companies. Many residents work remotely for NYC-based employers, creating strong demand for reliable fiber connections. Five fiber providers compete in Stamford, an unusually high number that keeps prices competitive.
Frontier and Optimum lead fiber coverage, each serving roughly two-thirds of the city. AT&T, Xfinity, and Verizon Fios provide additional wired options. T-Mobile and Verizon 5G offer wireless alternatives for renters and areas with limited wired infrastructure.
Internet by Stamford Neighborhood
- Downtown/Harbor Point: Excellent fiber from Frontier, Optimum, and AT&T
- North Stamford: Frontier fiber dominant; Optimum expanding
- Springdale/Glenbrook: Multiple cable and fiber options
- Shippan Point: Frontier and Optimum fiber available in most areas
Frequently Asked Questions About Stamford Internet
What is the best internet provider in Stamford, CT?
Frontier Fiber leads with 65% coverage and speeds up to 5 Gbps. Optimum is a strong alternative at 64.6% coverage with speeds up to 8 Gbps.
Is fiber internet available in Stamford?
Yes. Frontier (65%), Optimum (64.6%), AT&T (53.1%), Xfinity (31.1%), and Verizon Fios (26.9%) all offer fiber in parts of Stamford.
How much does internet cost in Stamford?
Plans start at $35/month for Xfinity. Most households pay $50-80/month. T-Mobile 5G is $40-50/month with no price hikes or contracts.
What is the fastest internet in Stamford?
Optimum fiber offers up to 8 Gbps. Frontier and AT&T both reach 5 Gbps. Verizon Fios and Xfinity top out at 2 Gbps.
Is 5G home internet available in Stamford?
Yes. T-Mobile 5G covers 66.6% of Stamford at $40-50/month. Verizon 5G Home reaches about 26.9% of addresses.
About the Author
Last Updated: February 7, 2026
Our team regularly reviews and updates this guide to ensure accuracy. Provider availability and pricing verified quarterly using FCC data.
Editorial Disclosure
InternetProviders.ai is committed to providing accurate, unbiased information to help you choose the right internet service. Some of the providers listed on this page are partners who compensate us when you sign up for service through our links or phone numbers. This compensation may affect the order in which providers appear, but it does not influence our ratings, reviews, or recommendations. Our editorial team independently researches and tests each provider. For more information, please see our editorial guidelines and how we make money.