AT&T Fiber vs CenturyLink: Which Is Better?
A modern, fully-symmetrical fiber network versus a legacy copper carrier where 94 percent of its own footprint is stuck on DSL. Six rounds. Real numbers. One honest scorecard.
The verdict
AT&T Fiber takes it, 6–0 on rounds.
This isn't really a fair fight — AT&T Fiber is a modern, fully-built fiber network, while CenturyLink is mostly a legacy DSL brand wearing fiber-era marketing, and the numbers back that up on almost every measure.
Choose AT&T Fiber if…
- • AT&T Fiber is available at your address — take it almost every time
- • You want a price promise that's actually held up under scrutiny
Choose CenturyLink if…
- • CenturyLink's small true-fiber footprint reaches your specific address
- • It's genuinely your only wired option and DSL beats nothing
Round by round
- Round 1Price — First Year vs Real CostAT&T Fiber winsAT&T Fiber8/10
$55/mo
Internet 300 standard rate, price-lock guarantee
- No promo cliff — quoted price is the real price
- $55/mo buys genuine 300 Mbps symmetrical fiber
- Gateway fee baked in, no opt-out
Source: AT&T Fiber pricing data
CenturyLink4/10$55/mo (DSL)
Real-world speeds often far below the advertised 140 Mbps max
- Fiber tier, where available, is competitively priced at $50-75/mo
- $55/mo DSL plan often delivers only 5-25 Mbps real-world
- Same dollar amount buys far less usable speed than AT&T
Source: CenturyLink pricing data
Both charge similar dollars, but AT&T's $55 buys real fiber speed while CenturyLink's often buys DSL-era speed at fiber-era pricing.
- Round 2Speed & TechnologyAT&T Fiber winsAT&T Fiber9/10
Up to 5 Gbps sym.
300 Mbps to 5 Gbps, fully symmetrical on every tier
- Fully symmetrical on every tier, everywhere it's sold
- Real-world speed tracks close to advertised
Source: AT&T Fiber plan tiers
CenturyLink3/105-25 Mbps real-world (DSL)
Advertised up to 140 Mbps; actual speed depends on distance from the DSLAM
- Fiber tiers, where available, deliver a genuine symmetrical 940 Mbps
- Most customers get DSL, with heavily asymmetric upload
- Real-world DSL speed often far below the advertised max
Source: CenturyLink plan tiers
AT&T delivers fiber-grade speed everywhere it's sold; CenturyLink's advertised speed and real speed are two very different numbers for most customers.
- Round 3Availability & FootprintAT&T Fiber winsAT&T Fiber8/10
28M+ homes / 21 states
Every covered address gets the same fiber product
- 28M+ homes passed, 100% genuine fiber
- No technology gap between markets
- Most U.S. addresses still can't get it
Source: AT&T Fiber availability data
CenturyLink3/10~380K fiber / 37-state DSL footprint
True fiber reaches under 19% of CenturyLink's customer base
- Broad legacy copper footprint reaches many rural areas with no other wired option
- 94% of its footprint is capped at DSL-era speeds
- 'CenturyLink' availability mostly means DSL, not fiber
Source: CenturyLink availability data
AT&T's smaller state count is all genuine fiber; CenturyLink's bigger map is overwhelmingly a different, slower product.
- Round 4Contract & FeesAT&T Fiber winsAT&T Fiber8/10
~$10/mo gateway (no opt-out)
$150+ only if the leased gateway isn't returned
- No annual contract, plus a genuine price-lock guarantee
- Only one real, well-documented equipment fee risk
- Gateway rental baked in, no opt-out
Source: AT&T Fiber equipment terms
CenturyLink2/10$65/mo → $80+/mo reported
Oregon DOJ investigated after 'Price for Life' complaints
- No annual contract on any current plan
- No data cap on any residential plan
- 'Price for Life' guarantee triggered an Oregon DOJ investigation
- $15/mo modem rental on DSL unless specifically waived
Source: Oregon DOJ investigation, CenturyLink
AT&T's price-lock has held up under scrutiny; CenturyLink's has triggered an actual state investigation.
- Round 5Reliability & Real-World SpeedAT&T Fiber winsAT&T Fiber9/10
79/100 (#1)
ACSI 2026 Telecom Study — #1 fiber ISP, 4th year running
- #1 ranked fiber ISP in ACSI for four consecutive years
- Proven, top-of-category satisfaction score
Source: ACSI Telecom Study 2026
CenturyLink3/1067/100
ACSI 2026 Telecom Study — non-fiber category, trails Cox's 72
- Fiber tiers, where sold, get genuine praise for speed and price
- 67/100 ACSI — 12 points behind AT&T's fiber score
- Trails even fellow non-fiber provider Cox (72)
Source: ACSI Telecom Study 2026
AT&T's fiber score is 12 points higher than CenturyLink's, and CenturyLink's actual delivered speed makes that gap feel even bigger.
- Round 6Customer Service & TrustAT&T Fiber winsAT&T Fiber6/10
"Only one outage in 5+ years"
- Fiber-specific reviews trend positive on reliability
- 1.2/5 score diluted by wireless-only complaints
- Still a 1.2/5 Trustpilot score across 11,000+ reviews
CenturyLink2/10"Have not had service since July 23"
- Fiber-tier reviewers describe fast, reliable service where it's sold
- 1.1/5 Trustpilot from ~1,975 reviews, one of the worst in the industry
- Reports of multi-week outages with repeatedly missed repairs
Both scores are rough, but CenturyLink's complaints are specific, severe, and tied directly to service reliability.
Which one is for you?
Household that wants a guaranteed, consistent fiber experience
→ AT&T Fiber · Every AT&T Fiber address gets the same symmetrical product
Household wary of price promises that don't hold up
→ AT&T Fiber · CenturyLink's 'Price for Life' guarantee triggered a state DOJ investigation
Rural household with no other wired option available
→ CenturyLink · CenturyLink's legacy copper footprint reaches many areas fiber hasn't
Household confirmed inside CenturyLink's small fiber-lit footprint
→ CenturyLink · Where true fiber exists, CenturyLink's rates are genuinely competitive
Side by side
- Price-lock guarantee — no 12-month promo cliff
- Bundling with wireless can push entry pricing to $35/mo
- Fully symmetrical upload/download on every tier
- Top tier reaches 5 Gbps in both directions
- 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
- Some existing customers still saw a ~$5/mo increase despite the lock
- 2 Gig tier retired in June 2026, leaving a price/speed gap
- Only reaches part of 21 states plus D.C. — most US addresses can't get it
- Coverage is block-by-block even within 'Fiber states'
- '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