Feds vote to move forward with cellphone jamming, a longtime priority for South Carolina prisons

Tereza Hanoldova via Getty Images

A plan to allow cellphone jamming in state prisons can move forward, the Federal Communications Commission decided Tuesday.

This story was originally published by the South Carolina Daily Gazette. 

A plan to allow cellphone jamming in state prisons can move forward, the Federal Communications Commission decided Tuesday.

The three-person commission’s unanimous vote represented a major win for state officials who have long said jamming is the best way to deal with an inundation of contraband cellphones in the state prison system. The voted will open up the policy for public comment, to be followed by another vote at a to-be-determined date.

Current and former state Department of Corrections directors praised the commission for considering the change at all, after more than a decade of trying and failing to get any movement on the issue.

“Inmates with illegal cellphones commit serious crimes,” corrections director Joel Anderson said in a Tuesday statement. “It’s that simple.”

Commission Chairman Brendan Carr told the story of Capt. Robert Johnson, an anti-contraband officer who in 2010 was shot six times at his Sumter home. Angry about the loss of a recent contraband package Johnson’s team had seized, inmates used an illegal cellphone to order the hit.

“Thankfully, Capt. Johnson survived, but in many ways, his story is not unique,” Carr told the commission Tuesday.

Cellphones have also allowed inmates to run extortion schemes and major drug rings, all from within prison walls, state officials have said. Similar crimes have taken place across the country, Carr said.

Federal Communications Commission Chairman Brendan Carr tells the story of South Carolina Capt. Robert Johnson during a meeting Tuesday, Sept. 30, 2025. (Screenshot of FCC livestream)

Officials have said the technology within prisons is extremely precise, blocking signals only within the walls.

But Commissioner Anna Gomez said she still worried about jamming devices interfering with nearby homes and businesses, as well as emergency calls. She asked for the commission to start with a smaller pilot program to see how the technology works.

Cellphone jamming is already used in federal prisons.

“While the problem we are trying to address is of critical importance, I worry about the potential unintended consequences of permitting jamming by non-federal actors and permitting jamming equipment to formally enter the American market,” Gomez said.

South Carolina will be ready as soon as a change takes effect, officials said earlier this month.

The state was the first in the nation to use a technology tracking cell signals within prisons, which allows officials to alert cellphone companies of unauthorized devices and get them turned off. Officials have compared the process to a game of “Whac-A-Mole,” saying it’s time-consuming to identify and get phones turned off individually.

That technology, which legislators have spent $18.5 million over two years to install and maintain, can be adjusted to block all cellphone signals within a prison instead of just detecting them. All the state needs is the commission’s OK.

Tuesday’s vote follows turnover at the commission.

A commissioner since 2017, Carr took over in January after President Donald Trump named him chairman. Gomez previously led the commission from 2023 as President Joe Biden’s choice. The Senate confirmed Trump’s other appointee, Olivia Trusty, in June.

SC Daily Gazette is part of States Newsroom, a nonprofit news network supported by grants and a coalition of donors as a 501c(3) public charity. SC Daily Gazette maintains editorial independence. Contact Editor Seanna Adcox for questions: info@scdailygazette.com.

X
This website uses cookies to enhance user experience and to analyze performance and traffic on our website. We also share information about your use of our site with our social media, advertising and analytics partners. Learn More / Do Not Sell My Personal Information
Accept Cookies
X
Cookie Preferences Cookie List

Do Not Sell My Personal Information

When you visit our website, we store cookies on your browser to collect information. The information collected might relate to you, your preferences or your device, and is mostly used to make the site work as you expect it to and to provide a more personalized web experience. However, you can choose not to allow certain types of cookies, which may impact your experience of the site and the services we are able to offer. Click on the different category headings to find out more and change our default settings according to your preference. You cannot opt-out of our First Party Strictly Necessary Cookies as they are deployed in order to ensure the proper functioning of our website (such as prompting the cookie banner and remembering your settings, to log into your account, to redirect you when you log out, etc.). For more information about the First and Third Party Cookies used please follow this link.

Allow All Cookies

Manage Consent Preferences

Strictly Necessary Cookies - Always Active

We do not allow you to opt-out of our certain cookies, as they are necessary to ensure the proper functioning of our website (such as prompting our cookie banner and remembering your privacy choices) and/or to monitor site performance. These cookies are not used in a way that constitutes a “sale” of your data under the CCPA. You can set your browser to block or alert you about these cookies, but some parts of the site will not work as intended if you do so. You can usually find these settings in the Options or Preferences menu of your browser. Visit www.allaboutcookies.org to learn more.

Sale of Personal Data, Targeting & Social Media Cookies

Under the California Consumer Privacy Act, you have the right to opt-out of the sale of your personal information to third parties. These cookies collect information for analytics and to personalize your experience with targeted ads. You may exercise your right to opt out of the sale of personal information by using this toggle switch. If you opt out we will not be able to offer you personalised ads and will not hand over your personal information to any third parties. Additionally, you may contact our legal department for further clarification about your rights as a California consumer by using this Exercise My Rights link

If you have enabled privacy controls on your browser (such as a plugin), we have to take that as a valid request to opt-out. Therefore we would not be able to track your activity through the web. This may affect our ability to personalize ads according to your preferences.

Targeting cookies may be set through our site by our advertising partners. They may be used by those companies to build a profile of your interests and show you relevant adverts on other sites. They do not store directly personal information, but are based on uniquely identifying your browser and internet device. If you do not allow these cookies, you will experience less targeted advertising.

Social media cookies are set by a range of social media services that we have added to the site to enable you to share our content with your friends and networks. They are capable of tracking your browser across other sites and building up a profile of your interests. This may impact the content and messages you see on other websites you visit. If you do not allow these cookies you may not be able to use or see these sharing tools.

If you want to opt out of all of our lead reports and lists, please submit a privacy request at our Do Not Sell page.

Save Settings
Cookie Preferences Cookie List

Cookie List

A cookie is a small piece of data (text file) that a website – when visited by a user – asks your browser to store on your device in order to remember information about you, such as your language preference or login information. Those cookies are set by us and called first-party cookies. We also use third-party cookies – which are cookies from a domain different than the domain of the website you are visiting – for our advertising and marketing efforts. More specifically, we use cookies and other tracking technologies for the following purposes:

Strictly Necessary Cookies

We do not allow you to opt-out of our certain cookies, as they are necessary to ensure the proper functioning of our website (such as prompting our cookie banner and remembering your privacy choices) and/or to monitor site performance. These cookies are not used in a way that constitutes a “sale” of your data under the CCPA. You can set your browser to block or alert you about these cookies, but some parts of the site will not work as intended if you do so. You can usually find these settings in the Options or Preferences menu of your browser. Visit www.allaboutcookies.org to learn more.

Functional Cookies

We do not allow you to opt-out of our certain cookies, as they are necessary to ensure the proper functioning of our website (such as prompting our cookie banner and remembering your privacy choices) and/or to monitor site performance. These cookies are not used in a way that constitutes a “sale” of your data under the CCPA. You can set your browser to block or alert you about these cookies, but some parts of the site will not work as intended if you do so. You can usually find these settings in the Options or Preferences menu of your browser. Visit www.allaboutcookies.org to learn more.

Performance Cookies

We do not allow you to opt-out of our certain cookies, as they are necessary to ensure the proper functioning of our website (such as prompting our cookie banner and remembering your privacy choices) and/or to monitor site performance. These cookies are not used in a way that constitutes a “sale” of your data under the CCPA. You can set your browser to block or alert you about these cookies, but some parts of the site will not work as intended if you do so. You can usually find these settings in the Options or Preferences menu of your browser. Visit www.allaboutcookies.org to learn more.

Sale of Personal Data

We also use cookies to personalize your experience on our websites, including by determining the most relevant content and advertisements to show you, and to monitor site traffic and performance, so that we may improve our websites and your experience. You may opt out of our use of such cookies (and the associated “sale” of your Personal Information) by using this toggle switch. You will still see some advertising, regardless of your selection. Because we do not track you across different devices, browsers and GEMG properties, your selection will take effect only on this browser, this device and this website.

Social Media Cookies

We also use cookies to personalize your experience on our websites, including by determining the most relevant content and advertisements to show you, and to monitor site traffic and performance, so that we may improve our websites and your experience. You may opt out of our use of such cookies (and the associated “sale” of your Personal Information) by using this toggle switch. You will still see some advertising, regardless of your selection. Because we do not track you across different devices, browsers and GEMG properties, your selection will take effect only on this browser, this device and this website.

Targeting Cookies

We also use cookies to personalize your experience on our websites, including by determining the most relevant content and advertisements to show you, and to monitor site traffic and performance, so that we may improve our websites and your experience. You may opt out of our use of such cookies (and the associated “sale” of your Personal Information) by using this toggle switch. You will still see some advertising, regardless of your selection. Because we do not track you across different devices, browsers and GEMG properties, your selection will take effect only on this browser, this device and this website.