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#1 Recommended Plan
1. AT&T 
Speeds Up To5 GbpsLtd. avail/areas. Speeds vary, not g’td. Single devices wired speed maximum 4.7 Gbps.Connection: Fiber, IPBBAvailability: 90.5%Why AT&T? AT&T Fiber's symmetrical gigabit speeds make it the ideal choice for busy households with streamers, gamers and remote workers. -
EarthLink 
Speeds Up To100 MbpsNot all internet speeds available in all areas.Connection: DSL, 5G InternetAvailability: 20.7% -
Spectrum 
Speeds Up To2 GbpsSpeeds up to 2G in Select Markets.Connection: CableAvailability: 20% -
4. Xfinity 
Speeds Up To1.2 GbpsNot all internet speeds available in all areas.Connection: CableAvailability: 98.6% -
5. Viasat 
Speeds Up To100 MbpsNot all internet speeds available in all areas.Connection: SatelliteAvailability: 98.6% -
6. T-Mobile 
Download Speeds:87 Mbps - 415 MbpsRely, All-In, and Amplified Internet plans can experience fast speeds with T-Mobile’s latest 5G gateway, delivering typical download speeds between 133 Mbps – 415 Mbps. 25% of our customers see speeds below and 25% see speeds above these ranges. T-Mobile Home Internet is delivered via 5G cellular network and speeds vary due to factors affecting cellular networks. See https://t-mobile.com/OpenInternet for additional details.Connection: 5G InternetAvailability: 98.6% -
7. XNET WiFi 
Speeds Up To2 GbpsNot all internet speeds available in all areas.Connection: Fixed WirelessAvailability: 98.6% -
8. XO 
Speeds Up To50 MbpsNot all internet speeds available in all areas.Connection: Fixed WirelessAvailability: 69.7% -
Wind Wireless 
Speeds Up To50 MbpsNot all internet speeds available in all areas.Connection: Fixed WirelessAvailability: 5.5% -
10. GeoLinks 
Speeds Up To1 GbpsNot all internet speeds available in all areas.Connection: Fixed WirelessAvailability: 98.6% -
11. Starlink 
Speeds Up To350 MbpsNot all internet speeds available in all areas.Connection: SatelliteAvailability: 100% -
12. Hughesnet 
Speeds Up To25 MbpsNot all internet speeds available in all areas.Connection: SatelliteAvailability: 98.6%
Internet Providers in Foster City, CA
Refine your search for better results:
Popular Foster City Internet Deals
| Provider | Featured deal | |
|---|---|---|
| AT&T | Get up to a $300 Reward Card with purchase of AT&T Fiber! Redemption req’d. |
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| EarthLink | Save $25 per month on the EarthLink Wireless 5G Home Internet Unlimited plan! |
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| Spectrum | Get Spectrum Internet® with a free modem, free antivirus software and no data caps! |
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| Xfinity | Get reliable 300 Mbps internet with an Unlimited mobile line for $40/mo for 5 years! With no term contract — Wi-Fi equipment included |
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| Viasat | Get $30 off for your first 3 months! Price shown includes promotion; Get $30/mo. off for the first 3 months. For new customers only. You must mention this offer when ordering service to receive the discount. |
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Foster City Home Internet Providers
| Provider | Plans starting at | Speeds up to | Connections | |
|---|---|---|---|---|
| Spectrum | $30/mo Prices may vary depending on the plan. | 2 Gbps Speeds up to 2G in Select Markets. | Cable |
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| AT&T | $34/mo Price is per month, plus taxes. Price after discounts: 20% off w/elig wireless svc. and $10/mo w/elig Autopay & Paperless bill. Discounts start w/in 2 bills. | 5 Gbps Ltd. avail/areas. Speeds vary, not g’td. Single devices wired speed maximum 4.7 Gbps. | Fiber, IPBB |
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| Hughesnet | $39.99/mo Prices may vary depending on the plan. | 25 Mbps Not all internet speeds available in all areas. | Satellite |
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| Xfinity | $40/mo Prices may vary depending on the plan. | 1.2 Gbps Not all internet speeds available in all areas. | Cable |
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| Wind Wireless | $49.95/mo Prices may vary depending on the plan. | 50 Mbps Not all internet speeds available in all areas. | Fixed Wireless |
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| GeoLinks | $49.99/mo Prices may vary depending on the plan. | 1 Gbps Not all internet speeds available in all areas. | Fixed Wireless |
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| T-Mobile | $50/mo Prices may vary depending on the plan. | 87 Mbps - 415 Mbps Rely, All-In, and Amplified Internet plans can experience fast speeds with T-Mobile’s latest 5G gateway, delivering typical download speeds between 133 Mbps – 415 Mbps. 25% of our customers see speeds below and 25% see speeds above these ranges. T-Mobile Home Internet is delivered via 5G cellular network and speeds vary due to factors affecting cellular networks. See https://t-mobile.com/OpenInternet for additional details. | 5G Internet |
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| Starlink | $50/mo Prices may vary depending on the plan. | 350 Mbps Not all internet speeds available in all areas. | Satellite |
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| XNET WiFi | $65/mo Prices may vary depending on the plan. | 2 Gbps Not all internet speeds available in all areas. | Fixed Wireless |
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| Viasat | $69.99/mo Price shown includes promotion; Get $30/mo. off for first 3 months. For new customers only. You must mention this offer when ordering service to receive the discount. | 100 Mbps Not all internet speeds available in all areas. | Satellite |
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| EarthLink | $79.95/mo Prices may vary depending on the plan. | 100 Mbps Not all internet speeds available in all areas. | DSL, 5G Internet |
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Best Internet Providers in Foster City, CA
AT&T Fiber is the best overall choice for Foster-City, California. AT&T Fiber offers symmetrical speeds up to [speed-high p="att-fiber"] for plans starting at [price-low p="att-fiber"] per month. While Xfinity covers more ground, AT&T Fiber provides superior fiber technology and higher performance for residents within its [cov-loc p="att-fiber"] of the area service footprint.
| Provider | Why they're great | Who they're great for | |
|---|---|---|---|
| AT&T | Fastest provider | For customers with lots of devices and competitive gamers, AT&T Fiber provides the extreme speeds needed to handle heavy daily internet use. |
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| EarthLink | No annual contracts | EarthLink is a great fit for renters and flexible households who want high-quality internet without being tied down by long-term commitments. |
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| Spectrum | Cheapest provider | Spectrum is ideal for budget-conscious shoppers looking for entry-level plans that offer reliable everyday connectivity at an affordable rate. |
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| Xfinity | Widely available | Customers in [city] and beyond who want a highly dependable internet option will appreciate that Xfinity maintains a huge nationwide network. |
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| T-Mobile | Straightforward pricing | Customers who hate hidden costs and want straightforward pricing with no equipment fees and taxes included will love T-Mobile 5G Home Internet. |
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Foster City Cheapest Internet Plans
Vast Networks offers the lowest entry pricing in Foster-City, California. Their fiber service starts at [price-low p="vas-fiber"] per month and features symmetrical speeds up to [speed-high p="vas-fiber"]. If Vast Networks is unavailable, Spectrum serves as a budget-friendly competitor with plans starting at [price-low p="spec-cable"] per month for [cov-loc p="spec-cable"] of the city.
| Provider | Plan name | Price | Speeds up to | |
|---|---|---|---|---|
| Spectrum | Spectrum Internet® Advantage | $30/mo Prices may vary depending on the plan. | 100 Mbps Speeds up to 2G in Select Markets. |
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| AT&T | Internet 100 | $34/mo Price is per month, plus taxes. Price after discounts: 20% off w/elig wireless svc. and $10/mo w/elig Autopay & Paperless bill. Discounts start w/in 2 bills. | 100 Mbps Ltd. avail/areas. Speeds vary, not g’td. Single devices wired speed maximum 4.7 Gbps. |
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| Viasat | Viasat Essentials | $39.99/mo Price shown includes promotion; Get $30/mo. off for first 3 months. For new customers only. You must mention this offer when ordering service to receive the discount. | 50 Mbps Not all internet speeds available in all areas. |
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| Hughesnet | Lite | $39.99/mo Prices may vary depending on the plan. | 25 Mbps Not all internet speeds available in all areas. |
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| Xfinity | 300 Mbps | $40/mo Prices may vary depending on the plan. | 300 Mbps Not all internet speeds available in all areas. |
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Fastest Internet Providers in Foster City, CA
Vast Networks delivers the fastest internet in Foster-City, California. Residents can access symmetrical speeds up to [speed-high p="vas-fiber"] for a high-performance fiber connection. While Vast Networks has limited reach, AT&T Fiber is a strong alternative for speed seekers, offering up to [speed-high p="att-fiber"] to [cov-loc p="att-fiber"] of the area.
| Provider | Speeds up to | Connection type | |
|---|---|---|---|
| AT&T | 5 Gbps Ltd. avail/areas. Speeds vary, not g’td. Single devices wired speed maximum 4.7 Gbps. | Fiber |
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| Spectrum | 2 Gbps Speeds up to 2G in Select Markets. | Cable |
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| XNET WiFi | 2 Gbps Not all internet speeds available in all areas. | Fixed Wireless |
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| Xfinity | 1.2 Gbps Not all internet speeds available in all areas. | Cable |
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| GeoLinks | 1 Gbps Not all internet speeds available in all areas. | Fixed Wireless |
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Compare Top Providers in Your Area
- AT&T Internet vs. Xfinity
- AT&T Internet vs. Spectrum
- AT&T Internet vs. T-Mobile 5G Home Internet
- EarthLink vs. Xfinity
- EarthLink vs. AT&T Internet
- EarthLink vs. Spectrum
- Hughesnet vs. Viasat Internet
- Hughesnet vs. T-Mobile 5G Home Internet
- Spectrum vs. T-Mobile 5G Home Internet
- Starlink vs. Viasat Internet
- Viasat Internet vs. T-Mobile 5G Home Internet
- Xfinity vs. Spectrum
Check Your Current Speed
What's a Good Internet Speed?
| Internet speed | Appropriate for | Providers in your area offering this speed | Availability in your area |
|---|---|---|---|
| 0-25 Mbps |
|
|
98.6% |
| 100 Mbps |
|
|
100% |
| 1000 Mbps (1 Gbps) |
|
|
98.6% |
Internet Availability in Foster City, CA
Xfinity provides the most widespread wired coverage in Foster-City, California. Xfinity service reaches [cov-loc p="xfi-cable"] of the city with download speeds up to [speed-high p="xfi-cable"] starting at [price-low p="xfi-cable"] per month. For the few locations Xfinity cannot reach, Starlink provides satellite coverage to [cov-loc p="sta-sat"] of the area.
| Connection type | Provider with most coverage | Foster City availability | Starting price | |
|---|---|---|---|---|
| Satellite | Starlink | 100% | $50/mo |
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| 5G Internet | T-Mobile 5G Home Internet | 98.6% | $50/mo |
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| Cable | Xfinity | 98.6% | $40/mo |
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| Fixed Wireless | GeoLinks | 98.6% | $49.99/mo |
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| DSL | AT&T Internet | 90.5% | $60/mo |
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| Fiber | AT&T Fiber | 67% | $34/mo |
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Foster City Internet Stats
| Average internet monthly cost | Available speed ranges | Available price range | Available connection types |
|---|---|---|---|
| $73.96 | 4 Mbps - 10 Gbps | $20/mo - $235/mo | 5G Internet, Cable, DSL, Fiber, Fixed Wireless, Satellite |
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Fastest Speed
AT&T FiberFiber
Internet 5000$235/mo*Price is per month, plus taxes. Elig. wireless svc. req'd. and after AutoPay & Paperless bill discount. Ltd. avail/areas. See offer details
Save 20% with Eligible AT&T Wireless Plan | $300 Visa Reward Card-
Download Speeds up to 5 Gbps
Show Details -
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Best Value
AT&T FiberFiber
Internet 1000$70/mo*Price is per month, plus taxes. Elig. wireless svc. req'd. and after AutoPay & Paperless bill discount. Ltd. avail/areas. See offer details
Save 20% with Eligible AT&T Wireless Plan | $100 Visa Reward Card-
Download Speeds up to 1 Gbps
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Great for multiplayer gaming and remote work
Show Details -
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Lowest Price
SpectrumCable
Spectrum Internet® Advantage$30/mo*Taxes & fees extra and subj. to change. See disclaimer for details. Restrictions apply. See offer details
One-year price guarantee-
Download Speeds up to 100 Mbps
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Reliable Internet at a budget-friendly price
Show Details -
Internet Coverage Map and Store Locations for Foster City, California
Methodology
Our provider rankings rely on a rigorous, data-driven framework evaluating over 100 million rows of FCC data to bring transparency to local internet options. We track 8,000+ active plans from 2,000+ providers to cut through marketing jargon. We weigh technical factors against real-world experiences to match you with the best connections actually available at your address:
- Tested Technology:
- Realistic Coverage:
- Transparent Pricing:
- Verified Speeds:
- User-Driven Personalization:
We utilize a fiber-first ranking system, prioritizing high-performance, structurally sound technologies (like fiber and cable) over slower legacy connections.
We filter out "ghost ISPs" with near-zero availability and actively flag providers that only cover a fraction of neighborhoods, ensuring you don't waste time on unavailable options.
We track base rates and downgrade providers that rely on hidden fees or sudden price hikes, exposing the true long-term cost beyond initial marketing promotions.
We look beyond deceptive "up to" marketing claims to evaluate the actual download and upload speeds delivered, prioritizing the balanced, symmetrical performance necessary for seamless video calls and heavy streaming.
We don't just look at the tech; we look at what people actually prefer. By analyzing millions of local connections, user reviews on downtime, and validated J.D. Power scores, we tailor our rankings to highlight the providers proven to satisfy users in your area.
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Data valid as of 03/12/2026