Optimum vs CenturyLink Internet: Which Is Better?
A tri-state cable operator racing to convert to fiber, versus a nationwide copper-line brand still running DSL for almost everyone in its territory. Six rounds. Real numbers. One honest scorecard.
The verdict
Rounds split 3–3; Optimum edges it on total score.
CenturyLink's copper reaches more of the map, but Optimum's cable — and especially its fiber buildout — delivers real speed where it's actually available, even with real customer-service work still to do.
Choose Optimum if…
- • You're inside Optimum's tri-state or Suddenlink-legacy footprint
- • You need real-world speed for a heavy streaming household
Choose CenturyLink if…
- • CenturyLink's copper is genuinely the only wired option at your address
- • You want the fewest hidden add-on fees, even with a lower speed ceiling
Round by round
- Round 1Price — First Year vs Real CostCenturyLink winsOptimum4/10
$25-30/mo promo
Bills reported reaching $150-290/mo after the promo ends
- Entry promo as low as $25/mo online-only
- Hidden network-access fee not in the sticker price
- Standard rate jumps hard after 12-24 months
- Bills reported reaching $150-290/mo
Source: Optimum pricing / ConsumerAffairs reports
CenturyLink5/10$55/mo
No hidden network-access fee, but 'Price for Life' disputed
- No separate network-access fee on the bill
- $15/mo modem rental unless waived
- 'Price for Life' guarantee under state investigation
Source: CenturyLink pricing data / Oregon DOJ
Neither price is fully honest, but Optimum's promo-to-real-bill gap is the more dramatic jump.
- Round 2Speed & TechnologyOptimum winsOptimum7/10
780 Mbps real (cable)
Fiber tiers reach up to 8,000 Mbps symmetric where lit
- Real-world cable speeds land 250-780 Mbps
- Fiber tiers reach up to 8,000 Mbps symmetric
- Cable upload capped around 10-50 Mbps
Source: Optimum plan data
CenturyLink3/105-25 Mbps
Real-world DSL speed despite a 140 Mbps advertised max
- Fiber overlay, where lit, hits a genuine 940 Mbps symmetric
- 94% of footprint capped at DSL-era speeds
- Real speed depends heavily on distance from the DSLAM
Source: CenturyLink network data
Optimum's cable alone beats CenturyLink's DSL on real-world speed, before fiber even enters the picture.
- Round 3Availability & FootprintCenturyLink winsOptimum4/10
~21 states
Heavily concentrated in NY/NJ/CT plus scattered former-Suddenlink pockets
- Optimum Fiber reaches ~2.9 million homes passed in its core
- Not an option for most of the country outside ~21 states
Source: Optimum footprint data
CenturyLink7/1037 states
Legacy copper often the only wired option in rural addresses
- Broad legacy copper footprint across 37 states
- Often the only wired option in rural addresses
- 94% of that footprint is DSL-only, not fiber
Source: CenturyLink footprint data
CenturyLink's map is broader, even if the underlying product is mostly DSL.
- Round 4Contract & FeesCenturyLink winsOptimum4/10
$14/mo modem + ~$100 install
No annual contract required, but the fee stack adds up fast
- No long-term contract required for standard service
- Modem rental up to $14/mo
- Professional install runs about $100 if needed
- Whole-Home Wi-Fi add-on costs ~$5/mo more
Source: Optimum fee schedule
CenturyLink5/10$15/mo modem rental
No ETF, no separate install fee on most fiber-tier offers
- Genuinely no annual contract or ETF
- No Whole-Home Wi-Fi upsell add-on
- $15/mo modem rental unless waived
- 'Price for Life' guarantee disputed by regulators
Source: CenturyLink fee schedule
Both charge modem rental, but CenturyLink at least skips Optimum's Whole-Home Wi-Fi upsell and install fee.
- Round 5Reliability & Real-World SpeedOptimum winsOptimum5/10
63/100 (cable) / 74/100 (fiber)
Fiber-side satisfaction meaningfully outperforms the cable brand
- Fiber-side ACSI reaches a respectable 74
- Cable-side ACSI only 63 — near bottom of industry
Source: ACSI 2026 Telecom Study
CenturyLink4/1067/100
Below Cox's 72 among non-fiber providers
- Fiber-tier customers, where lit, report faster speeds
- Real-world DSL speed often falls far short of advertised
Source: ACSI 2026 Telecom Study
Both score in the industry's bottom half, but Optimum's fiber side genuinely outperforms both companies' legacy products.
- Round 6Customer Service & TrustOptimum winsOptimum3/10
~1,000+ ComplaintsBoard complaints
- Free self-install option via the MyOptimum app
- ~1,000+ ComplaintsBoard complaints, only ~3% resolved
- Reports of unauthorized mobile-service sign-ups
CenturyLink1/101.1/5 Trustpilot, worst in the industry
- 1.1/5 Trustpilot from ~1,975 reviews
- Recurring reports of multi-week outages and missed repairs
- Disputed equipment-return charges reported by customers
Both have real trust problems, but CenturyLink's complaint record is measurably worse.
Which one is for you?
Household in Optimum's tri-state or Suddenlink-legacy footprint
→ Optimum · Faster real-world speeds than CenturyLink's DSL
Genuinely rural household with no cable buildout nearby
→ CenturyLink · Copper often the only wired option left
Heavy streaming household needing consistent bandwidth
→ Optimum · Real-world cable speeds far outpace DSL
Anyone prioritizing the fewest hidden fees on the bill
→ CenturyLink · No separate network-access fee, though modem rental still applies
Side by side
- No data cap on any plan, so no overage surprise
- No data cap on any residential plan
- Symmetric fiber up to 8,000 Mbps where available
- Targeting 65% multi-gig footprint by 2028
- 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
- Undisclosed network-access fee ($7-10/mo) on top of advertised price
- Multiple 2026 reports of bills reaching $150-290/mo
- Cancellation process reported to take up to an hour
- Modem rental up to $14/mo plus $5 Wi-Fi add-on
- '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