Quantum Fiber review

Updated September 30, 2026 · TariffCue Editorial Team · Facts checked September 30, 2026

We earn a commission when you sign up through links on this site. Partner status can affect where a brand appears in our rankings.

Our verdict

Quantum Fiber suits households in the US that want full fibre speeds on a rolling agreement, with uploads of 200 to 8,000 Mbps and a Simply Fiber plan starting at $30 a month. Every plan can be cancelled at any time with no early termination charge, so switching is easy to undo.

Key facts

Best for
Full fibre inside US on a rolling agreement, with no setup fee and no exit penalty.
Top download speed (Mbps)
8,000 (Source, checked September 30, 2026)
Upload speed (Mbps)
200 to 8,000 (Source, checked September 30, 2026)
Price from
$30 (Source, checked September 30, 2026)
Reference plan prices
Simply Fiber: $30 per month, 200 Mbps, no contract; 1 Gig: $50 per month, 940 Mbps, no contract; 2 Gig: $70 per month, 2000 Mbps, no contract (Source, checked September 30, 2026)
Setup fee
$0 (Source, checked September 30, 2026)
Mid-contract price rises
Pricing subject to change. (Source, checked September 30, 2026)
Exit fee terms
may be cancelled at any time without an early termination fee (Source, checked September 30, 2026)
Router
360 WiFi included at no extra cost (Source, checked September 30, 2026)
Social tariff
Yes (Source, checked September 30, 2026)
Address checker
https://www.quantumfiber.com/shop/ (Source, checked September 30, 2026)
FCC broadband label
https://broadbandlabel.quantumfiber.com/catalog (Source, checked September 30, 2026)
Markets
US (Source, checked September 30, 2026)
Support channels
Chat, Phone, Help-centre (Source, checked September 30, 2026)
Technology
Fttp
Contract length
1
Official website
quantumfiber.com

Apps and profiles

Elsewhere
X

Pros and cons

Pros

  • Entry at $30 a month with a setup fee of $0, so the first bill carries no connection charge.
  • Plans run on 1 month terms and can be cancelled at any time with no early termination charge.
  • Uploads of 200 to 8,000 Mbps and downloads of 8,000 Mbps make the line symmetrical at the ceiling rather than download-only.
  • A social tariff is available, which can bring the bill down for households that qualify.

Cons

  • Availability is limited to US, so much of the country cannot order it at all.
  • The Simply Fiber entry tier runs far below the 8,000 Mbps ceiling, so headline speed needs a pricier plan.
  • Support runs on chat, phone and help centre only, with no email channel among them.
  • The stated position on price is Pricing subject to change., so the entry rate is a starting point rather than a locked one.
Quantum Fiber

Ready to try Quantum Fiber?

Scored 9.2 / 10 by TariffCue.

See alternatives

Who it suits

  • Households in US that can get the fibre line and want upload capacity for home working, calls and backups.
  • Renters and short-stay homes, since plans run on 1 month terms and can be cancelled at any time with no early termination charge.
  • Shoppers who would rather not budget for hardware, with 360 WiFi included at no extra cost and a setup fee of $0.

Who should look elsewhere

  • Anyone outside US; EarthLink's fttp, 5G and satellite options reach a different set of addresses.
  • Buyers chasing the highest headline speed, since Abissnet lists 10,000 Mbps against Quantum Fiber's 8,000 Mbps.
  • Homes with no fibre line that want cable instead, which is the case Astound covers with cable and fttp.

Core features

Maximum download speed is 8,000 Mbps, and uploads run 200 to 8,000 Mbps across the range, so the connection is symmetrical at the ceiling rather than download-only. That balance suits traffic in both directions: video calls, cloud backups and pulling large files off a home network. A social tariff is also available, which lowers the monthly cost for households that qualify.

How it compares on our data

On maximum download speed, Quantum Fiber sits at 10 of 114 brands, which places it well up the field without topping it. On price, the position is 49 of 95, so the entry rate is competitive rather than the lowest on the list. Setup fee is the strongest of the three: 1 of 86, so getting connected costs nothing in this comparison.

Plans and prices

Simply Fiber is the entry plan at $30 a month, with faster tiers above it. All plans are sold with no contract, so the monthly figure you start on is the figure you keep, with no post-contract step-up to budget for at renewal. Leaving is straightforward too, since any plan can be cancelled at any time with no early termination charge. Nothing is added to get started, with a setup fee of $0. One caveat on price certainty: the stated position is that pricing is subject to change, so treat the entry rate as a starting point rather than a fixed one.

How Quantum Fiber compares

Where Quantum Fiber is available

Available
United States

Countries from the brand (Source, checked September 30, 2026)

Frequently asked questions

How much does Quantum Fiber broadband cost a month?+

The Simply Fiber plan is the entry point at $30 a month, with faster tiers above it. Nothing is added to get connected, because the setup fee is $0. A WiFi unit is also included at no extra cost, so the monthly figure is close to the whole cost of being on the network.

Do I have to sign a contract?+

The listed contract length is 1 month, and every plan is sold without a contract. Because of that, the monthly figure you start on is the monthly figure you keep, with no post-contract step-up to budget for at renewal.

Can I leave without paying an exit fee?+

Any plan can be cancelled at any time with no early termination charge, so there is no minimum term to serve out and no penalty for moving home or switching. That makes the rolling 1-month term genuinely short notice rather than a nominal month with strings attached.

Can the monthly price change later?+

The provider's own note is that pricing is subject to change, which is the one soft spot in an otherwise predictable deal. Since the plans carry no contract, a change in the monthly rate would apply to the ongoing price rather than only to renewals.

How fast is the connection?+

Maximum download speed is 8,000 Mbps, and uploads run 200 to 8,000 Mbps across the range. Upload capacity of that order is the useful part for anyone working from home, running backups or pushing large files off the network.

Where can I get it?+

Quantum Fiber serves US, so it is a single market rather than a broad national footprint. Availability depends on whether the property already sits on the fibre network, which is worth checking before spending time on speeds and tiers.

What equipment and help do I get?+

A WiFi unit is included at no extra cost, so there is no router hire to add to the first bill. Support afterwards runs on chat, phone and help centre, which covers live chat, phone and a help centre for setup questions and fault reporting.

Is there a cheaper tariff for eligible households?+

A social tariff is available, which is the route to a lower monthly cost for households that qualify. The standard entry point is the Simply Fiber plan at $30 a month, so it is worth asking about the social tariff before settling on the standard price.

How does it compare with other providers?+

Against Abissnet, which lists 10,000 Mbps on downloads, Quantum Fiber's 8,000 Mbps is lower but sold without a contract. Astound runs cable and fttp and EarthLink fttp, 5G and satellite, both of which cover lines where a pure fibre build is not available.

Sources

Compiled from 7 source pages, checked September 30, 2026. We did not open an account.

Quantum Fiber

Quantum Fiber

Full fibre inside US on a rolling agreement, with no setup fee and no exit penalty.

9.2/10See alternatives

Your cookie choices

We use necessary cookies to make this site work. With your permission, analytics cookies help us understand usage and marketing cookies support advertising.

You can reject non-essential cookies and still use the site. Change your choices anytime in Cookie settings.

Cookie policy
Cookie settings