CenturyLink vs Suddenlink: Side by Side Comparison

A Side-by-Side Comparison of CenturyLink and Suddenlink Communications in 2021

CenturyLink and Suddenlink Communications are some of the top providers in the U.S. Where CenturyLink provides DSL and fiber service to its customers, Suddenlink Communications offers cable. Their prices and speeds are similar in range and they both offer bundle options. However, while there are several similarities between these two internet service providers, it’s important to consider the differences when making a decision.

Below, we cover the key differences in their plans, contracts, data caps, and more.

CenturyLink Info

Price Range


Suddenlink Info

Price Range


CenturyLink vs. Suddenlink Comparison
Provider CenturyLink Suddenlink
Speed 100-940 Mbps 200-940 Mbps
Pricing $30-65/mo. $39.99-79.99/mo.
Service Type DSL, Fiber, Copper or Fixed Wireless Cable or Fiber
CenturyLink vs. Suddenlink FEATURE COMPARISON
Provider CenturyLink Suddenlink
High-Speed Plans Yes Yes
Unlimited Data Yes Yes
Contract-Free Plans Select Plans No
TV Service No Yes
Phone Service Yes Yes

CenturyLink Internet Deals †

Last updated on 10/14/2021

†All plans not available in all areas or to all customers. Verify details with CenturyLink.

Suddenlink Internet Deals †

Last updated on 10/13/2021

†All plans not available in all areas or to all customers. Verify details with Suddenlink.

CenturyLink vs. Suddenlink Performance Overview

CenturyLink is the third-largest residential DSL provider in the U.S., providing DSL service to approximately 49.3 million people. Although they offer service to all 50 states, their greatest coverage is in Arizona, Colorado, and Washington. Its fiber service is available to 9.6 million people. They offer internet-only plans as well as bundled options with TV and phone services.

As the seventh-largest cable provider in the country, Suddenlink Communications offers coverage to an estimated 6.8 million people in 19 states, with the greatest coverage in Texas, West Virginia, and Louisiana. Suddenlink Communications’ customers can choose from cable services as well as TV and phone bundle options, depending on where they live.

CenturyLink Installation

CenturyLink offers both self installation as well as professional installation. Depending on the plan selected, professional installation can range from $99-$125. The technician will install your modem and up to five computers or devices. CenturyLink’s self-install option is only available in some areas. If your installation needs copper bury, an additional fee of $300 will be charged. If you need aerial delivery, this will cost $150. These are both one-time fees, and you will be informed if these are required before they are installed.

Suddenlink Communications Installation

Suddenlink Communications offers free installation for two of its internet plans: Internet 400 Unlimited Data Plan ($55/month) and Internet 1 Gig Unlimited Data Plan ($75/month). If you order online, you may be eligible for free installation as well. Suddenlink’s Internet 100 plan ($35/month), however, does require an installation fee. Customers can choose between standard installation for $59 or premium installation for $99. If you choose to pay the higher fee for premium installation, you’ll receive WiFi configuration for up to six devices, hardwiring for one device, and assistance in creating your Suddenlink ID.

CenturyLink Contracts, Equipment Fees & Fine Print

Most of CenturyLink’s plans require contracts that are 24 to 36 months long. If you break these contracts early, you will be required to pay an early termination fee. If your contract is for 24 months, you may be responsible for ETFs up to $200 and if your contract is 36 months, you will have to pay $300. You can opt for a month-to-month plan option with CenturyLink. However, if you cancel before the end of your billing cycle, your monthly fees will still need to be paid in full.

CenturyLink’s speeds are up to 940 Mbps, and you can opt to lease or purchase the modem. If you choose to lease the modem, you can expect to pay $15 per month. On the other hand, if you buy the modem you will pay a one-time $200 fee.

Suddenlink Communications Contracts, Equipment Fees & Fine Print

Suddenlink Communications’ does not require contracts for any of its internet plans, with speeds up to 1000 Mbps. No contracts mean there are no early termination fees. If you decide to switch over to Suddenlink Communications before your contract with your previous provider is up, Suddenlink offers contract buyouts.

Customers can choose to either lease or buy the modem from Suddenlink Communications. The Docsis 3.0 Modem and the wireless modem and router combo costs $10/month to lease, or you can purchase the Docsis 3.0 Modem for a one-time fee of $80.

CenturyLink Data Caps

Most of CenturyLink’s plans have high data caps of 1024 GB, which most people will not hit in one month. If you exceed this limit, you will need to pay $10 for every 50 GB you go over. If you feel that you may exceed this limit, you can select CenturyLink’s Fiber Gigabit plan, which has no data caps.

Suddenlink Communications Data Caps

Depending on which plan you choose, Suddenlink Communications’ data caps range from 250 GB to unlimited. Unfortunately, there are no options to add unlimited data to a plan with data caps. Exceeding your monthly limit means you’ll be expected to pay an additional $15 for every 50 GB you go over.

100 Mbps CenturyLink Internet

on September 19, 2019

We switched to CenturyLink and could not be happier. It is so much faster, has never cut out and had the best installation customer service. The price is also great.

Love Centurylink

on June 18, 2021

We have had Centurylink landline for literally decades. It was a no-brainer for us to use them for internet and landline when we moved into our new home. Our home was built in an area with their new fiber internet. They installed it on the day scheduled, at the scheduled time. The technician was great. Had it up and running quickly. Have not had any problems. Both the internet and landline are cheaper than we were paying Cox for just the internet. Had a very bad experience with our previous ISP. Kept dropping calls. Hope to have Centurylink for decades to come.

Just got service

on December 18, 2019

Mr. Harrison did a great job hooking up our service.

Reliable service

on March 13, 2020

I've had internet service for a few years from Suddenlink. Never had an outage, They have a good package deal right now for unlimited data and cable TV. Superfast internet. Yesterday I called and the service tech was able to get me a great deal.

CenturyLink vs. Suddenlink Coverage Availability

CenturyLink Coverage & Availability

Suddenlink Coverage & Availability

Frequently Asked Questions about CenturyLink & Suddenlink Communications

  • Is CenturyLink cheaper than Suddenlink Communications?

    CenturyLink’s cheapest plan is $49/month, which is more expensive than Suddenlink Communications’ cheapest plan at $35/month. However, CenturyLink’s most expensive plan starts at $69/month, which is cheaper than Suddenlink Communications’ at $75/month.

  • Who has faster speeds? CenturyLink or Suddenlink Communications?

    CenturyLink’s speeds range from 20-940 Mbps, which is similar to Suddenlink Communications’ speeds which range from 100-1000 Mbps.

  • Do CenturyLink and Suddenlink Communications have unlimited data?

    Both CenturyLink and Suddenlink Communications offer internet plans with unlimited data. CenturyLink’s plans with data caps, however, are limited at 1024 GB, which most internet users will not hit let alone exceed.