# Verizon SIM Protection on iPhone: How It Works URL: https://byshahid.com/blog/verizon-sim-protection-iphone/ App: Secret Codes: IMEI & Carrier (https://apps.apple.com/us/app/secret-codes-imei-carrier/id6807154322) Author: Muhammad Shahid Updated: 2026-11-04 > Blocks SIM swaps, eSIM moves and upgrades on your Verizon line. Number Lock stops your number leaving Verizon. SIM Protection stops it moving to a different device while it stays on Verizon — which is the shape most SIM-swap attacks actually take. - **What it does:** Blocks SIM swaps, eSIM moves and upgrades on your Verizon line. - **Published for:** Verizon - **Type:** Carrier specific Blocks SIM swaps, eSIM moves and upgrades on your Verizon line. This page explains what it does, how to use it on an iPhone and which carriers it applies to. I build **Secret Codes: IMEI & Carrier**, a free iPhone app with 317 checked codes and guides, including this one. If you would rather tap than memorise, [get Secret Codes on the App Store](https://apps.apple.com/us/app/secret-codes-imei-carrier/id6807154322). ## What is Verizon SIM Protection? Number Lock stops your number leaving Verizon. SIM Protection stops it moving to a different device while it stays on Verizon — which is the shape most SIM-swap attacks actually take. Verizon describes protected lines as blocked from every transaction that needs a new SIM, including SIM swaps, device upgrades and bring-your-own-device activations. The two are separate toggles on the same Security settings screen, and turning on only one leaves the other route open. Enabling both is the complete version of this protection. Verizon also enforces a cooling-off period: after you disable SIM Protection, SIM changes and upgrade orders stay blocked for a further 15 minutes. That deliberately frustrates an attacker who has just talked their way into your account and wants to act immediately. **Important:** Leave time before an upgrade or a new iPhone setup — SIM Protection blocks the activation, and the block persists for 15 minutes after you switch it off. ## How do I do it? - Sign in to My Verizon on the web with Account Owner or Manager access. - Go to Account, then Account settings, then Security settings. - Find the SIM Protection section and click Edit. - Set the toggle for each number you want protected. - Click Save changes and complete any extra verification you are prompted for. ## Which carriers does this apply to? | Published for | Verizon | | Type | Carrier specific | | Good to know | Verizon mobile accounts, set per line. Requires Account Owner or Manager access. | _Screenshot: The Secret Codes detail screen shows the steps, the carriers and an Open in Phone button._ ## Related security and scam reporting - [Verizon Number Lock](/blog/verizon-number-lock-iphone/) - [T-Mobile Port Out Protection](/blog/t-mobile-port-out-protection-iphone/) - [Text HELP For Program Details](/blog/text-help-for-program-details-iphone/) - [T-Mobile SIM Protection](/blog/t-mobile-sim-protection-iphone/) - [Text STOP To Unsubscribe](/blog/text-stop-to-unsubscribe-iphone/) - [AT&T Wireless Account Lock](/blog/att-wireless-account-lock-iphone/) See all [security and scam reporting](/blog/iphone-codes/security-and-scams/) or [every category of iPhone codes](/blog/iphone-codes/). ## How Secret Codes helps Secret Codes keeps this and every other entry a search away. Pick your carrier once and each entry says whether it is published for your line. You can save favourites, add a private note, and record whether a code worked on your line. This entry is part of Secret Codes Pro. **Secret Codes: IMEI & Carrier** is free on the App Store: https://apps.apple.com/us/app/secret-codes-imei-carrier/id6807154322 ## FAQ ### What is Verizon SIM Protection on iPhone? Blocks SIM swaps, eSIM moves and upgrades on your Verizon line. Number Lock stops your number leaving Verizon. SIM Protection stops it moving to a different device while it stays on Verizon — which is the shape most SIM-swap attacks actually take. ### What else should I know about Verizon SIM Protection? Verizon describes protected lines as blocked from every transaction that needs a new SIM, including SIM swaps, device upgrades and bring-your-own-device activations. The two are separate toggles on the same Security settings screen, and turning on only one leaves the other route open. Enabling both is the complete version of this protection. ### What are the steps for Verizon SIM Protection? 1. Sign in to My Verizon on the web with Account Owner or Manager access. 2. Go to Account, then Account settings, then Security settings. 3. Find the SIM Protection section and click Edit. 4. Set the toggle for each number you want protected. 5. Click Save changes and complete any extra verification you are prompted for. ### Where do I find Verizon SIM Protection? In the carrier's or Apple's own app, as described on this page. ### Is there a dial code for Verizon SIM Protection? No keypad code is listed for it. The way to do it is: App. ### Which carriers does Verizon SIM Protection work on? It is published for Verizon. Verizon mobile accounts, set per line. Requires Account Owner or Manager access. ### Is there anything to watch out for with Verizon SIM Protection? Leave time before an upgrade or a new iPhone setup — SIM Protection blocks the activation, and the block persists for 15 minutes after you switch it off. ### Does Verizon SIM Protection work on Android phones too? These steps are for iPhone. Android phones have their own menus. ### Will Verizon SIM Protection work outside the US? The iPhone steps stay the same, although some features depend on your carrier and region. ### What if Verizon SIM Protection does not work on my iPhone? Check that it applies to your carrier first, because carriers decide which services they offer and can change them. If it should apply to your line, contact your carrier. ### What is related to Verizon SIM Protection? Verizon Number Lock. Blocks anyone from porting your Verizon number to another carrier. ### What else is in this category? T-Mobile Port Out Protection. Free block on transferring your T-Mobile lines to another carrier. ## Sources - [FTC: ReportFraud](https://reportfraud.ftc.gov/) - [National Do Not Call Registry](https://www.donotcall.gov/) - [FCC: Stop unwanted robocalls and texts](https://www.fcc.gov/consumers/guides/stop-unwanted-robocalls-and-texts)