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Are You Getting the Internet Speeds You're Paying For? Here's How to Find Out

After hours of reading through ISPs' terms of service, here's what we learned about how to make sense of internet bills.

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Headshot of Ry Crist
Ry Crist Former Senior Editor / Reviews - Labs
Originally hailing from Troy, Ohio, Ry Crist is a writer, a text-based adventure connoisseur, a lover of terrible movies and an enthusiastic yet mediocre cook. A CNET editor from 2013 to 2024, Ry's beats included smart home tech, lighting, appliances, broadband and home networking.
Expertise Smart home technology | Wireless connectivity Credentials
  • 10 years product testing experience with the CNET Home team
Ry Crist
9 min read
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According to a recent CNET survey, internet users are paying an average of $195 more for internet service than last year. Internet typically costs $60 a month, not including equipment fees, so it can be frustrating when the internet service doesn't meet our expectations.

Why does internet service sometimes fall short? It’s not always the provider’s fault. Internet connections are complicated and can be slowed down by things like network congestion, the performance of other networks your data travels through and plenty of other factors outside your ISP’s control.

Still, it's often difficult to determine what exactly you're paying for each month because of the tendency of ISPs to add extra fees. Although the Federal Communications Commission requires that broadband providers disclose information about their plans in easy-to-read broadband labels, not all ISPs use those labels and, when they do, they don't always disclose everything.

Locating local internet providers

Lucky for you, we've spent hours reading the disclosures of the five largest ISPs in the US by market share, Xfinity, Spectrum, AT&T, Verizon and Cox Communications, to give you an idea of how to break down your providers' terms of service and figure out what to expect on your monthly bill. After all, the internet is expensive, and you should be getting what you're paying for.

Read more: Best internet providers in 2025 | Best mesh Wi-Fi systems of 2025 

Locating local internet providers

It's normal for your speeds to vary

The first thing to know about ISPs is that most internet providers prefix their speed claims with language like "up to," because they can't always guarantee you'll get the same speeds consistently. There are many reasons why your network could be congested or slow, and while some are more detailed than others, most of the broadband disclosures for the major ISPs start by explaining what these factors are. 

They typically include things like the capabilities of your internet-connected devices, the limitations of whatever networks your signals are traveling along and overall congestion or heavy traffic to specific sites and services. It's also important to remember that advertised speeds are typically based on wired connections to the modem. Speeds will dip once you start wirelessly beaming an internet connection throughout your house with a Wi-Fi router.

fcc-chart-actual-vs-advertised.png

The FCC's 2024 Measuring Broadband America report found that most internet users were experiencing median download speeds that were as fast as advertised. This was especially true among cable and fiber internet subscribers.

FCC Measuring Fixed Broadband - Thirteenth Report

Those caveats aside, there's actually decent data in support of ISP speed claims -- namely from the FCC, which periodically tests the various speeds each ISP offers. The most recent FCC speed tests, published in 2024, found that most ISP top speeds were more or less as fast as advertised. For most providers -- particularly cable and fiber -- users receive more speed than they're paying for.

"Most customers using cable and fiber technologies experienced median download speeds that were fairly consistent; i.e., these ISPs provided 100% or greater than the advertised speed during peak usage period to more than 80% of their panelists for more than 80% of the time," the FCC report reads.

Cheapest plans from the biggest ISPs


XfinitySpectrumAT&T FiberVerizon FiosCox Communications
Max download speed 400Mbps500Mbps300Mbps300Mbps300Mbps
Max upload speed 20Mbps20Mbps300Mbps300Mbps5-10Mbps
Data allowance UnlimitedUnlimitedUnlimitedUnlimited1.25TB, then $10 / 50GB
Installation costs Up to $100Up to $65NoneUp to $99Up to $100
Promotional price (monthly) $55$50$55$50$50
Promotional period 5 years12 monthsNone24 months24 months
Price after promotion (monthly) $93$80$55$60$70
Modem/router fee $15 (optional)$10 (optional)NoneNone$15 (optional)
Early termination fee NoneNoneNoneNoneNone
Show more (4 items)

Source: CNET analysis of provider data.

Picking a plan can be a pain

The chart above lists the details of the introductory broadband plans from the top five providers. In the past few years, providers have generally increased the speeds on their starting plans significantly. Spectrum, for example, raised the download speeds on its cheapest plan (without low-income requirements) from 100Mbps to 500Mbps in the past year.

Providers don't always make it easy to understand what your bill is going to look like as you're shopping. Most will try to get you to submit your home address and contact info before they'll show you the specific offers available in your region. Squint at the fine print and you'll probably notice terms like these, from the Cox Communications website:

By clicking "Get Free Quote" above, I consent to receive from Cox and any party on Cox's behalf telemarketing calls using an autodialer or pre-recordings and SMS text messages at any time, which could result in wireless charges, at the number provided. I understand that consent is not a condition of purchase.

At any rate, try to avoid "free quote" buttons like those if you can. Providers are now required by the FCC to show basic information like speeds, fees and contracts in a nutrition label format, so comparing your options is a lot easier than it used to be.

att-internet-broadband-label
AT&T

You might still have a hard time figuring out how much you'll be paying once the promotional period is up. For instance, Spectrum offers a flat introductory rate of $50 per month for internet speeds up to 500Mbps, but you'll have to look on the broadband label to find out that this is a "12 month introductory rate ... The post-introductory rate is $80 and subject to change."

As we said, our advice is to avoid providing your personal info until you're relatively sure you want to sign up for service. Adding your name to your provider's "Do not call" and "Do not mail" lists is probably worth doing, too. The companies will need your address to verify that their services are actually available in your home but there's no reason they shouldn't be able to provide a basic overview of rates for services available in your ZIP code.

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You'll pay an extra $15 monthly to use the Xfinity gateway (modem/router).

Comcast xFinity

Understand your fees

Most internet plans come with fees on top of the monthly rate. Here's a quick rundown of what to look for.

Modem/router rental fee

Just like it sounds, most providers will charge a monthly fee to let you "rent" their modem or router hardware (you might also see them listed under "equipment fees"). These fees range from $10 monthly for a router from Spectrum to $15 per month for the Xfinity gateway, a combination modem and router. In most cases, your ISP will let you skip this fee by using your own router but you'll need to ensure it's certified by the ISP as a compatible device.

Installation fees

These vary from provider to provider, and some will charge less if you bundle your internet with other services like phone or TV. In many cases, the ISP will waive these fees altogether to sweeten the deal and earn your business.

Overage fees

Some internet providers cap your monthly data usage -- if you go over that cap in a given month, you'll have to pay a fee. Of the top five broadband providers, only Xfinity and Cox use data caps, while AT&T, Spectrum and Verizon don't. For the two that do, the monthly cap is 1.2TB to 1.25TB of data, with a fee of $10 for every 50GB you use afterward. More on fees like these in just a bit.

Early termination fee

Most internet plans offer a discounted promotional rate for new customers, typically for 12 months. After that, the price goes up to the standard, month-to-month rate. In most cases, if you cancel your service before that promotional period ends, you'll have to buy out the remainder of your contract with an early termination fee -- typically either $10 or $15 for each remaining, unused month of the promotional period.

Keep in mind that providers will often try to tempt you to switch from your current provider by offering to pay the early termination fees for you. For example, Spectrum offers up to $500 to cover cancellation fees from your current provider.

Notes on network management

Something else you're bound to read about in these broadband disclosures is "network management," which is the umbrella term for all of the ways that ISPs exert control over your connection to manage speed and network performance for everyone. There are perfectly legitimate reasons for doing this -- blocking spammers and dealing with denial-of-service attacks, for instance -- but it's still a somewhat thorny issue because of bandwidth throttling. That's the term for when a website, a device or an internet provider limits your speed lower than what your setup is capable of.

Xfinity garnered its fair share of unflattering headlines for throttling in 2008, when the company was caught throttling traffic to peer-to-peer file-sharing service BitTorrent. The FCC ruled that Xfinity was violating Net Neutrality laws and ordered the company to disclose its network management practices moving forward. Those rules are now in political limbo with a Republican FCC but most ISPs have discontinued the practice on their own.

Ten years after the FCC ruled against it, Xfinity announced that it was ending its congestion management system altogether. Here's what the company told CNET when it made the change:

Our network and consumer devices have evolved to a point that our old congestion management system is no longer necessary. The system has been essentially inactive for more than a year. With well over 99 percent of our Internet customers using more modern DOCSIS gateways and modems, congestion on individual channels is no longer an issue that needs to be managed. We took the opportunity to formalize this change while we were updating our other customer disclosures.

That falls in line with other providers, all of whom go out of their way in their network management disclosures to indicate that they don't throttle traffic for specific users or to specific sites. That said, most providers also leave language in the fine print that would seem to allow wiggle room for some degree of throttling.

For instance, Spectrum's disclosure explains that it follows "a variety of reasonable network management practices" that are designed to "protect customers from activities that can unreasonably burden our network or compromise security." Note that it's up to Spectrum to determine what constitutes an unreasonable burden on the network.

Cox Communications puts it similarly: "At times of congestion, standard network algorithms may be employed to ensure that available bandwidth is equitably allocated to competing users. Cox regularly monitors data usage, congestion and capacity to decide where additional capacity in the network is needed."

I give some extra credit to Verizon's disclosure, which actually calls out throttling by name: "Verizon Online does not affirmatively manage congestion on the network through mechanisms such as real-time throttling, blocking or dropping of specific end user traffic based on source or content."

That brings us to one last connection consideration...

Data caps: Annoying but workable

Data caps can be a real pain if you're using a basic, DSL-type internet plan with top speeds of less than 10Mbps, because plans like those are often structured around light internet use -- designed for people who just log on once or twice a day to check their email, for instance. Accordingly enough, the caps for basic plans can be very tight, which isn't good if you need more.

Even if you're paying for a faster connection with a higher data cap, the practice feels a bit unfair. After all, if you're already paying more for faster speeds, why should you pay more a second time when you actually use those faster speeds?

The good news is that the data caps for broadband connections are a lot more generous than those for slower connections. Of the five providers I looked into for this post, AT&T, Spectrum and Verizon don't cap your data at all, while the other two -- Cox Communications and Xfinity -- each cap it above 1,000GB per month, with a fee of $10 for each 50GB after that. 

That's more than a whole terabyte per month, which is a huge amount of data. For example, I live with a roommate who works from home and uses the internet each day. I use a variety of smart home gadgets that keep a steady connection to the router and we also often use streaming TV services and play video games online with friends. Our typical data use comes in at about 0.5TB per month, tops.

Still, data use is only growing. The most recent report from OpenVault clocks average data use at 698GB, a number that has only grown in recent years.

Most providers offer trackers that can help you understand how much data your family typically uses so it's a good idea to keep an eye on that info to get a good sense of how much internet speed you're actually using. If you have a lot of internet users in your home, particularly ones who do a lot of downloading, then you'll want to consider switching to a provider that doesn't use data caps. If that isn't an option, spending extra for an unlimited data plan might be worth it.