Cox Communications vs Quantum Fiber
Quantum Fiber ranks higher on our formula, 80 to 59 on each provider's best plan. It is also cheaper over two years (from $50/mo all-in) and sells the faster top plan (8 Gbps).
Prices last checked September 2026.
Side by side
Cox Communications and Quantum Fiber compared
Real cost is the two-year monthly average with the promo step-up, equipment rental and installation folded in.
| Measure | Cox Communications | Quantum Fiber |
|---|---|---|
| Technology | Cable, Fiber | Fiber |
| Fastest plan | 2 Gbps | 8 Gbps |
| Upload on fastest plan | 100 Mbps | 8 Gbps |
| Lowest advertised price | $50/mo | $50/mo |
| Lowest real cost | $74/mo | $50/mo |
| Price steps up after promo | On some plans | No |
| Data caps | On some plans | None |
| Contracts | None required | None required |
| Equipment fee | Up to $14/mo | Included |
| States served | 17 | 19 |
| Our rating (best plan) | 59/100 | 80/100 |
Plans
Every plan from both
Cox Communications
CableFiberOut of date — checked Sep 11, 2026- Go Fast100 Mbps · $50/mo · real $74
- Go Faster500 Mbps · $70/mo · real $99
- Go Even Faster1 Gbps · $90/mo · real $119
- Go Beyond Fast2 Gbps · $150/mo · real $150
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
Honest assessment
Where each one wins
Cox Communications
- Widely available in its metros
- Multi-gig tiers in most markets
- Low-cost ConnectAssist tier
- 1.25 TB data cap
- Equipment fee on most plans
- Price steps up after 12 months
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
Head to head
Cities where Cox Communications and Quantum Fiber compete
Markets where we have both on record. Each page ranks every provider there.
Questions
Cox Communications vs Quantum Fiber, answered
Is Cox Communications or Quantum Fiber better?
Quantum Fiber ranks higher on our formula, 80 to 59 on each provider's best plan. It is also cheaper over two years (from $50/mo all-in) and sells the faster top plan (8 Gbps).
Which is cheaper, Cox Communications or Quantum Fiber?
Quantum Fiber has the lower real cost: $50 a month averaged over two years with fees included, against $74 for Cox Communications. The advertised entry prices are $50 for Cox Communications and $50 for Quantum Fiber.
Which is faster, Cox Communications or Quantum Fiber?
Quantum Fiber sells the faster top plan, at 8 Gbps down and 8 Gbps up. Cox Communications tops out at 2 Gbps down and 100 Mbps up. For most households upload speed matters more than the headline download figure.
Where can I get both Cox Communications and Quantum Fiber?
We have both on record in 10 markets, including Phoenix, AZ; Mesa, AZ; Chandler, AZ; Scottsdale, AZ; Glendale, AZ. Availability still varies street by street.
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