How to Unblock a Cell Phone: A Cost-Saving Guide

Unblocking your phone lets you choose cheaper prepaid plans and avoid hidden fees—here’s how to do it.

Fact-Based AnswerSources CitedNo Sponsored Rankings
Compare Plans →
Published: Updated: By the Cell Phone Carrier Research Team

Request an unlock code from your current carrier after meeting contract or payment obligations. Most major carriers must unlock devices upon request if the phone is fully paid off. Unlocking can then save you $50 or more per month on a prepaid plan.

Average monthly postpaid bill (Consumer Expenditure Survey, 2023): $90Average monthly prepaid plan cost (Industry estimate, 2025): $40Typical unlocking fee (if carrier charges): $0 – $15Annual savings from switching to prepaid after unlock: $600

Ready to Compare Plans?

See current pricing from every major carrier and budget brand — sorted by true total cost.

Compare Plans →Free to compare · No credit check to browse · Affiliate-supported

Why Unlock Your Phone

Unblocking (unlocking) a cell phone removes the software restriction that ties it to one network. The primary financial benefit is freedom: you can switch to a prepaid or budget provider that may charge $40 per month instead of the typical $90 per month postpaid plan. According to the Consumer Expenditure Survey (BLS, 2023), the average US household spends $1,080 annually on cell phone services. By unlocking, many households can cut that cost by more than half.

Source: U.S. Bureau of Labor Statistics, Consumer Expenditure Survey 2023 (cell phone services category).

Costs Involved in Unlocking

Most major carriers in the US will unlock a phone for free once you have fulfilled your contract or device payment plan. However, some carriers may charge a small fee (typically $0 to $15) if you request an unlock outside of standard eligibility. The FCC has stated that carriers must unlock phones upon request if the device is paid off and the account is in good standing. There are no federal taxes or surcharges on the unlock itself, but be aware that unlocking may void certain promotions or discounts tied to your current plan.

Unlock ScenarioTypical CostSource
Device fully paid off, contract complete$0FCC Consumer Guide
Early unlock request (device still financed)$0 – $15Industry practice
Third-party unlocking service$5 – $50Consumer reports
Source: FCC Consumer Guide – “Unlocking Cell Phones” (2014, updated 2025).

How to Request an Unlock

  1. Confirm your phone is eligible: no remaining device balance, account in good standing, and at least 60 days of active service (for many carriers).
  2. Contact your carrier’s customer service by phone, online chat, or through their website. Request an “unlock code” or “network unlock.”
  3. Provide your phone’s IMEI number (dial *#06#). The carrier will confirm eligibility and send instructions.
  4. Insert a new SIM card from a different carrier to test the unlock. If the phone accepts the SIM, the unlock is successful.

Most carriers process unlocks within 24–48 hours. Some budget providers may require a longer waiting period. No extra billing or tax is applied to the unlock itself.

Source: FCC Consumer Guide – “Unlocking Cell Phones”.

Savings from Switching Plans

Once your phone is unlocked, you can move to a prepaid plan that costs $40 per month on average, compared to $90 per month for a typical postpaid plan. That is an annual savings of $600. Additionally, prepaid plans often have lower taxes and fees because they are not subject to the same regulatory surcharges as postpaid contracts. The Tax Foundation has noted that wireless taxes and fees can add 15–25% to a postpaid bill, whereas prepaid taxes are often capped at lower rates. Over two years, unlocking could save a household more than $1,200.

  • Postpaid average monthly bill: $90 (includes taxes/fees)
  • Prepaid average monthly plan: $40 (plus lower taxes)
  • Yearly savings: $600
Source: Tax Foundation, “State Wireless Taxes and Fees” (2025); BLS Consumer Expenditure Survey 2023.

What to Do If Blocked

If your unlock request is denied, first verify that you meet all requirements. If you believe the carrier is violating FCC guidelines, you can file an informal complaint with the FCC Consumer Complaint Center. Some carriers block phones reported as stolen; in that case, contact the original carrier to clear the IMEI. Do not pay for third-party unlocking services unless the carrier’s official method fails — and even then, verify the service’s reputation to avoid scams. Unlocking a phone yourself (e.g., through shady software) can void warranties and may incur additional costs if the phone becomes bricked. Stick to the official process and your savings will follow.

Source: FCC Consumer Complaint Center – “Phone Unlocking Complaints”.
carrier lockunlock codeSIM lockIMEIprepaid planpostpaid planunlocking feenetwork unlock

Frequently Asked Questions

Will unlocking my phone void the warranty?

Unlocking a phone through the carrier’s official process does not void the manufacturer’s warranty. The Magnuson-Moss Warranty Act protects consumers from warranty voiding due to lawful unlocking.

Is there a fee to unlock my phone in 2026?

Most major carriers unlock phones for free after the device is paid off and the account is in good standing. Some may charge a small administrative fee (typically $0–$15). Third-party services may charge $5–$50.

Can I unlock a phone that is still under contract?

Generally no. You must fulfill the contract or pay off the device balance first. However, some carriers allow early unlocking for military deployment or international travel.

How long does it take to get an unlock code?

Most carriers provide instructions within 24–48 hours. Some budget providers may take up to 5 business days.

Will unlocking affect my current plan’s billing?

Unlocking itself does not change your plan or billing. However, if you switch to a different provider after unlocking, your old plan will be terminated, and you may owe any remaining installment payments.

Ready to Find Your Perfect Plan?

Compare cell phone plans from all major carriers and find the best deal for you.

Compare Plans →
Compare Plans →