Quantum Fiber vs Ziply Fiber
Ziply Fiber ranks higher on our formula, 81 to 80 on each provider's best plan. It is also cheaper over two years (from $20/mo all-in) and sells the faster top plan (10 Gbps).
Prices last checked September 2026.
Side by side
Quantum Fiber and Ziply Fiber compared
Real cost is the two-year monthly average with the promo step-up, equipment rental and installation folded in.
| Measure | Quantum Fiber | Ziply Fiber |
|---|---|---|
| Technology | Fiber | Fiber, DSL |
| Fastest plan | 8 Gbps | 10 Gbps |
| Upload on fastest plan | 8 Gbps | 10 Gbps |
| Lowest advertised price | $50/mo | $20/mo |
| Lowest real cost | $50/mo | $20/mo |
| Price steps up after promo | No | No |
| Data caps | None | None |
| Contracts | None required | None required |
| Equipment fee | Included | Included |
| States served | 19 | 4 |
| Our rating (best plan) | 80/100 | 81/100 |
Plans
Every plan from both
Quantum Fiber
FiberNot yet checked- 500 Mbps500 Mbps · $50/mo · real $50
- 940 Mbps940 Mbps · $75/mo · real $75
- 2 Gig2 Gbps · $95/mo · real $95
- 8 Gig8 Gbps · $165/mo · real $165
Ziply Fiber
FiberDSLNot yet checked- Fiber 100100 Mbps · $20/mo · real $20
- Fiber 300300 Mbps · $40/mo · real $40
- Fiber Gig1 Gbps · $60/mo · real $60
- Fiber 2 Gig2 Gbps · $80/mo · real $80
- Fiber 10 Gig10 Gbps · $300/mo · real $300
Honest assessment
Where each one wins
Quantum Fiber
- Symmetrical up to 8 Gig
- No annual contract
- Price does not step up
- Build is patchy inside its own metros
- Install lead times
- Support is shared with CenturyLink
Ziply Fiber
- $20 for 100 Mbps symmetrical
- 10 Gig available to homes
- No contracts or data caps
- Four states only
- Legacy DSL in unconverted areas
- Install scheduling can slip
Head to head
Cities where Quantum Fiber and Ziply Fiber compete
Markets where we have both on record. Each page ranks every provider there.
Questions
Quantum Fiber vs Ziply Fiber, answered
Is Quantum Fiber or Ziply Fiber better?
Ziply Fiber ranks higher on our formula, 81 to 80 on each provider's best plan. It is also cheaper over two years (from $20/mo all-in) and sells the faster top plan (10 Gbps).
Which is cheaper, Quantum Fiber or Ziply Fiber?
Ziply Fiber has the lower real cost: $20 a month averaged over two years with fees included, against $50 for Quantum Fiber. The advertised entry prices are $50 for Quantum Fiber and $20 for Ziply Fiber.
Which is faster, Quantum Fiber or Ziply Fiber?
Ziply Fiber sells the faster top plan, at 10 Gbps down and 10 Gbps up. Quantum Fiber tops out at 8 Gbps down and 8 Gbps up. For most households upload speed matters more than the headline download figure.
Where can I get both Quantum Fiber and Ziply Fiber?
We have both on record in 7 markets, including Seattle, WA; Spokane, WA; Vancouver, WA; Portland, OR; Eugene, OR. Availability still varies street by street.
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