VerdictLab

Frontier vs CenturyLink Internet: Which Is Better?

Two former copper telephone giants. One rebuilt itself into a fast-growing fiber network. The other is still selling DSL to most of its footprint. Six rounds. Real numbers. One honest scorecard.

FrontierWinner
Frontier
6.6
Fair
5 of 6 rounds
vs
CenturyLink
CenturyLink
3.8
Weak
1 of 6 rounds

The verdict

Frontier takes it, 5–1 on rounds.

These two share copper-company roots but not much else today — Frontier rebuilt itself as a fiber network while most of CenturyLink's footprint is still riding decades-old DSL, and that gap should drive the decision more than price.

Choose Frontier if…

  • • Frontier Fiber has reached your address and you want symmetrical speed with predictable pricing
  • • You need reliable upload for remote work or video calls

Choose CenturyLink if…

  • • CenturyLink is genuinely your only wired option in a rural area
  • • You want the cheapest possible no-contract line and can live with DSL-era speeds

Round by round

  1. Round 1Price — First Year vs Real CostFrontier wins
    Frontier9/10

    $69.99-$74.99/mo

    1 Gig fiber tier, price-lockable 5 years

    • 5-year price-for-life guarantee on fiber
    • No annual contract
    • DSL tier lacks the same price guarantee

    Source: Frontier pricing data

    CenturyLink4/10

    "Price for Life" under DOJ scrutiny

    • Cheapest entry DSL rate among major ISPs
    • No annual contract, no early termination fee
    • Oregon DOJ investigated broken 'Price for Life' promises
    • DSL is the reality for most CenturyLink customers

    Frontier's price-for-life actually holds; CenturyLink's has a documented history of not holding.

  2. Round 2Speed & TechnologyFrontier wins
    Frontier9/10

    Up to 7,000 Mbps

    Fiber-first buildout, symmetrical at every tier

    • Fiber is the primary, growing product
    • Symmetrical speed at every fiber tier

    Source: Frontier plan tiers

    CenturyLink3/10

    94% DSL-only

    Real-world DSL speeds often 5-25 Mbps

    • Fiber tiers, where lit, are fully symmetrical
    • 94% of addresses stuck on DSL-era speeds
    • Upload on DSL often under 20 Mbps

    Source: CenturyLink availability data

    Frontier sells fiber as the default; CenturyLink still sells DSL to nearly everyone.

  3. Round 3Availability & FootprintCenturyLink wins
    Frontier5/10

    ~7.5-10M locations

    Fiber passings across 25 states

    • Fast-growing fiber footprint
    • Far smaller total footprint than CenturyLink's copper network

    Source: Frontier availability data

    CenturyLink7/10

    37 states

    Broad copper reach, but only ~19% of it is fiber-lit

    • Broadest wired footprint of the two, especially in rural areas
    • Often the only wired option in some markets
    • The vast majority of that footprint is DSL, not fiber

    Source: CenturyLink availability data

    CenturyLink's copper reaches farther; Frontier's fiber delivers more once it does.

  4. Round 4Contract & FeesFrontier wins
    Frontier9/10

    $0 router rental

    Free eero Pro 7 on fiber; no data cap on either product

    • No annual contract
    • No router rental fee, no data cap

    Source: Frontier equipment/fee data

    CenturyLink4/10

    $15/mo DSL modem rental, disputed return fees

    • No annual contract, no early termination fee
    • Fiber tier gateway included at no charge
    • $15/mo modem rental on DSL
    • Disputed equipment-return fees reported over $150

    Both skip the contract; only Frontier skips the modem rental too.

  5. Round 5Reliability & Real-World SpeedFrontier wins
    Frontier8/10

    "Rock solid" — speeds match advertised

    • Fiber speeds consistently match advertised numbers
    • Customers describe reliability as strong
    • Trails ACSI leaders like Cox
    CenturyLink2/10

    1.1/5 Trustpilot, multi-week outages reported

    • Fiber-tier reviews describe fast, reliable service
    • 1.1/5 Trustpilot average across ~1,975 reviews
    • Reports of multi-week outages with missed repair appointments

    Frontier's fiber network performs close to spec; CenturyLink's DSL and support both fall short of it.

  6. Round 6Customer Service & TrustFrontier wins
    Frontier6/10

    Billing complaints, but not the industry floor

    • Fiber customers report smoother support experiences
    • Disputed equipment-return fees up to $500
    • Past-due flags reported within 24 hours of signup
    CenturyLink1/10

    1.1/5 Trustpilot, weeks-long outage reports

    • No-contract structure means no early termination penalty
    • 1.1/5 Trustpilot average, among the worst in the industry
    • BBB complaints cite 2-3 week cancellation delays

    Frontier's support is flawed; CenturyLink's is a documented industry low.

Which one is for you?

Household where Frontier Fiber has actually reached the street

→ Frontier · Symmetrical fiber up to 7 Gbps with a price-for-life guarantee

Rural household with almost no other wired option

→ CenturyLink · CenturyLink's copper network reaches more addresses, even as DSL

Anyone who wants the cheapest possible no-contract line

→ CenturyLink · CenturyLink DSL undercuts Frontier on entry price, if speed isn't the priority

Remote worker who needs dependable upload speed

→ Frontier · Frontier's fiber-first buildout delivers symmetrical speed as the default

FrontierFrontier
CenturyLinkCenturyLink

Side by side

Overall score
6.6
Best
3.8
Price
See price
See price
Availability & Footprint
4.9
6.3
Price — First Year vs Real Cost
8.2
4.3
Customer Service & Trust
4.7
1.7
Speed & Technology
8.8
2.9
Contract & Fees
7.0
4.2
Head-to-head findings
Availability & Footprint
7.5-10M fiber locations
~37 states via legacy copper
Price — First Year vs Real Cost
$30-75/mo, locked
$55/mo flat (DSL)
Customer Service & Trust
Strong fiber reviews, billing complaints
1.1/5 Trustpilot, weeks-long outages
Speed & Technology
Symmetrical up to 7 Gbps
Real-world 5-25 Mbps on DSL
Contract & Fees
No cap, but billing complaints
No data cap, no ETF
Reliability & Real-World Speed
'Rock solid' fiber reliability
67/100 ACSI
Record
Head-to-head record
6–1
0–11
Head-to-heads won
86 %
0 %
Rounds won
57 %
20 %
Pros
  • Genuine multi-year price-for-life guarantee
  • No annual contract required
  • Fully symmetrical upload/download at every tier
  • Tiers scale up to 7 Gbps
  • No promotional cliff on the DSL tier — flat rate from day one
  • Small fiber tiers (500-940 Mbps symmetrical) exist where lit
  • No data cap on any current plan
  • Genuinely month-to-month with no early termination fee
Cons
  • DSL customers don't get the same price-lock protection
  • Fiber footprint far smaller than Xfinity's cable footprint
  • Many legacy customers still stuck on slow DSL
  • Billing/cancellation disputes reported, including $500 equipment charges
  • 'Price for Life' guarantee has a documented history of not holding on other tiers
  • 94% of footprint is DSL-only, advertised up to 140 Mbps but often 5-25 Mbps real-world
  • Reviewers report phantom late fees and disputed equipment-return charges up to $150+
  • 94% of that footprint delivers DSL speeds only, not fiber
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