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The ultimate guide to switching from AT&T to Astound Mobile

Switching from AT&T to Astound doesn’t have to be complicated. At Astound, we make it easy to bring your own phone, keep your number and start fresh with flexible mobile plans built around your needs. You’ll enjoy dependable nationwide 5G coverage and even more value when you bundle Astound Mobile with Astound internet.

This guide walks you through every step of switching from AT&T: checking compatibility, unlocking your phone, transferring your number, activating service and managing your new plan. Follow each step to make your switch to Astound smooth, simple and stress-free.

Switching is easy

No contracts. No nonsense.

We make switching your internet services easy with on-time appointments and self‑install options to get you connected fast.

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Why switch to Astound Mobile?

Whether you’re a single user looking for flexibility or a family managing multiple lines, Astound keeps your costs predictable with simple pricing and transparent discounts. No long-term contracts, hidden fees or surprises. It’s everything you expect from a major carrier, just simpler, more transparent and built to fit the way you connect.

Flexibility and no long-term commitments

Astound Mobile plans are designed for flexibility. Just check our terms. With no mandatory contracts, no early termination fees and no device financing obligations, you can change, upgrade or cancel month-to-month as your needs evolve, without worrying about hidden penalties or surprise charges.

Plans that fit your usage

Astound offers two straightforward data tiers: Unlimited and By the Gig. Go Unlimited to avoid overages and enjoy worry-free streaming and browsing or choose a By the Gig plan to pay only for the data you use; ideal for light or moderate users. Astound also lets you mix and match plan types across multiple lines, giving families the flexibility to choose the data amount that fits each person’s needs.

Bundle savings with internet + Mobile

When you combine Astound Mobile with qualifying Astound internet service, you unlock exclusive savings and limited-time credits. Many customers receive one Unlimited Mobile line free for 12 months, reflected as a monthly $40 credit, while others save an extra $30 per month on their bill when bundling with a Mobile line. Additional savings apply automatically with Autopay and Paperless Billing, providing $5 – $10 monthly discounts depending on payment method.

Strong coverage

Astound Mobile operates on one of the nation’s largest and most reliable 5G and 4G LTE networks, giving you dependable coverage coast to coast. Whether you’re streaming, calling or working remotely, you’ll have fast, consistent connectivity virtually anywhere in the U.S.

Transparent terms and usage policies

We believe in keeping things simple and transparent. Each Astound Mobile plan clearly outlines what’s included, so you always know your data allowance and options. If you ever need more, you can easily add extra data for $10 per GB, giving you flexibility and control over how you use your plan.

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Before you switch: How to prepare for a smooth move

Switching from AT&T to Astound is easiest when you plan ahead. Taking a few minutes to review your current setup, confirm eligibility and explore bundle options ensures your transition goes off without a hitch and that you’re getting the most value from your new plan.

    1. Review current usage
      Check your recent AT&T bills or device settings to see how much data you typically use each month. This helps you choose between Astound’s By the Gig or Unlimited plan tiers based on real usage and keeps you from overpaying for data you don’t need.
    2. Check eligibility for bundle savings
      If you already have, or plan to add, Astound’s 1 Gig internet, review current offers or bundle credits. In many regions, combining Mobile and internet unlocks extra monthly discounts or other promotions.
    3. Evaluate device compatibility and unlock status
      Before your activation day, confirm that your phone is both unlocked and compatible with Astound’s 5G network. You can check this using Astound’s online tools or through your AT&T account portal.
    4. Prepare your account for transfer
      Ensure you know where to find your AT&T account number and transfer PIN. These credentials will be required when you begin porting your number.
    5. Back up your data
      Save your contacts, photos and key files to the cloud or your device’s backup service. This guarantees a smooth experience when you activate your new SIM or eSIM with Astound.

Once you’ve checked these boxes, you’re ready to move your phone and number to Astound. A little preparation now will make your switch easy, quick and free of surprises.

Bring Your Own Device (BYOD): Unlocking and compatibility

Love your current phone? Keep it. Astound Mobile makes it easy to bring your own device (BYOD) when you switch from AT&T. Most popular iPhone and Android models work on Astound’s reliable 5G network; you’ll just need to make sure your phone is compatible and unlocked before you get started.

IMEI check

To see if your phone works with Astound, locate your device’s IMEI number by dialing *#06# or checking your phone’s settings. Then, enter the IMEI number in Astound’s device compatibility checker. If your phone passes, you’re ready to activate. This quick check ensures your device supports the same 5G and LTE bands that power Astound’s network.

Unlock your device from AT&T

If your phone is still locked to AT&T, request an unlock through your AT&T account or contact their support team. Most devices become eligible once they’re fully paid off and linked to an account in good standing. Unlocking lets your phone connect freely to Astound’s network, so you can bring your number, your apps and your data without buying a new device.

SIM and eSIM activation options

Astound supports both physical SIM cards and eSIM activation. If your phone supports eSIM, you can start service instantly by scanning a QR code during setup. Prefer a traditional SIM? You’ll receive one by mail and can follow Astound’s guided activation steps online or in the MyAstound app.

Once your phone is verified and unlocked, you’re ready to make the switch. Activating your device with Astound takes just minutes, so you can keep the phone you love and start enjoying reliable, fast 5G mobile data right away.

Switching is easy

Switch & Save

Getting started with Astound is easy: just bring your phone or find a new one, pick a plan and add internet.

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Keeping your number when switching from AT&T to Astound

Switching carriers doesn’t mean starting over. With Astound Mobile, you can easily keep your current AT&T number and bring it with you when you activate your new service. The process is secure, fast and designed to keep you connected without missing a call.

What you’ll need

Before you start your number transfer (also known as porting), make sure you have the following information from your AT&T account:

    1. AT&T account number: Check your most recent bill or in your AT&T account settings.
    2. Transfer (Port) PIN: This is required for all number transfers. Make sure to request it from AT&T before beginning.
    3. Account holder name and billing ZIP code: To avoid delays or failures, these must match exactly as they appear on your AT&T account.

Don’t cancel your AT&T service until your number transfer is complete. Canceling early can cause your number to be lost before it moves to Astound.

Porting timeline and process

Once you’ve confirmed your information, enter your AT&T account details during activation on Astound’s website or in the MyAstound app. Most number transfers are completed within minutes to a few hours, but some may take longer depending on AT&T’s response time.

When your port is complete, your AT&T line will automatically deactivate and your number will become active on your Astound Mobile plan. You’ll receive a confirmation message once the transfer is successful. Then you can call, text and browse as usual on your new service.

To check your transfer status or troubleshoot a delay, visit Astound’s Mobile Support Center or contact customer service for quick assistance.

Step-by-step switching checklist (AT&T to Astound)

Switching to Astound Mobile is fast and built to keep you connected every step of the way. With just a few details from your AT&T account, you can move your number, activate your phone and start enjoying reliable 5G coverage. Here’s how to make the switch with confidence.

    1. Enter your address on Astound’s Check for Service page to confirm mobile service is available near you.
    2. Pick your mobile plan, either By the Gig or Unlimited, and bundle with Astound’s Gig internet. Confirm any current ‘Switch & Save’ promotions or bundle offers that apply to your region.
    3. Run your phone’s IMEI through Astound’s IMEI checker to ensure compatibility.
    4. Unlock your device via AT&T’s portal or via AT&T support, if necessary.
    5. Back up your device and all your important data (contacts, photos and messages).
    6. Log into MyAstound or the Astound app to initiate your mobile activation process.
    7. Select SIM or eSIM activation within the activation flow.
    8. Enter your AT&T account number, transfer PIN, account name and ZIP code to begin number porting.
    9. Wait for confirmation. How long does it take to switch phone carriers? Many ports finish in minutes; some may take a few hours.
    10. Once ported, test your service (call, text, data) to ensure all is working.
    11. Activate autopay and paperless billing to secure your billing discounts.
    12. Monitor your first few bills to ensure all bundle credits, promo rates and discounts are applied correctly.
    13. Use your Astound dashboard or app to manage your plan, add extra data or upgrade lines as needed.

If you’re porting multiple lines from a family AT&T plan, repeat the porting steps for each line. Once your service is active, your Astound experience continues with easy billing, flexible plan management and powerful mobile features designed to keep you connected on your terms.

If you run into any issues, Astound’s customer support team is always ready to help you complete your switch.

What happens after you switch

From your first bill to your first call, everything about the Astound experience is designed to be simple, transparent and reliable. You’ll have access to your account, plans and billing all in one place, backed by nationwide 5G coverage and award-winning customer support that’s always ready to help. Here’s what you can expect in terms of billing, support and features:

Billing and promotions

    • Your first bill will clearly show credits, bundle discounts, autopay credits and any promotional free-line credits.
    • Many customers receive one Unlimited mobile line free for 12 months when paired with qualifying internet service, with that free line appearing as a monthly credit.
    • Autopay and paperless billing automatically apply eligible discounts each month, without extra steps.

Managing your plan

    • Adjust your plan, add more data or switch to a new tier instantly through the Astound website or mobile app. No need to wait for your next billing cycle.
    • View real-time mobile data usage for each line, monitor remaining data and keep tabs on billing details all in one place through your Astound account dashboard.
    • Downgrading your plan, removing lines or making account-level updates may require assistance from our mobile customer service team to ensure everything transitions smoothly.

Features and capabilities

    • Stay connected coast to coast with dependable, unlimited nationwide coverage on Astound’s 5G and 4G LTE networks, built on the same infrastructure that powers major carriers.
    • Share your data connection or call over WiFi at no additional cost. Every plan includes hotspot capability and WiFi calling for a stronger connection indoors or on the go.
    • When you bundle Astound Mobile with Astound internet, you’ll save every month and enjoy the convenience of managing both services through one MyAstound account and a single, easy-to-read bill, as well as access to our award-winning customer support team.

Customer support

    • The Astound Mobile Help and Support center offers step-by-step activation guides, billing information and answers to common questions to help you get the most from your service.
    • Astound’s activation and support pages walk you through every stage of getting started, from setting up your SIM or eSIM and transferring your number to connecting devices, updating settings and resolving common issues.
    • If you ever need extra help, Astound’s locally based customer care teams are available by phone, chat or online to provide personalized assistance from people who live and work in your community.

Conclusion

Switching your mobile service from AT&T to Astound is a straightforward process that puts control back in your hands. You’ll keep your number, continue using your current device and gain the flexibility of clear pricing and month-to-month plans.

By preparing your AT&T details, confirming compatibility and following the activation steps outlined above, your move to Astound can be seamless. Once you’re set up, managing your account and tracking your savings is simple through the MyAstound app or online dashboard.

Ready to make the switch? Start building your Astound Mobile plan today.

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Looking for smarter ways to put money back into your pocket? Bundle internet, mobile and TV with Astound and watch your savings grow.

Frequently asked questions

Yes. You can transfer your AT&T number to Astound by entering your AT&T account number, transfer PIN, account name and billing ZIP code during activation. Keep your AT&T service active until the transfer completes to avoid losing your number.

You’ll need your AT&T account number and transfer PIN to move your number to Astound. Request your transfer PIN directly from AT&T before starting activation and make sure your account details match exactly to prevent delays.

Most AT&T phones work with Astound Mobile. Dial *#06# to find your IMEI and enter it in Astound’s device compatibility checker. If your phone is unlocked and compatible, it’s ready to activate.

Number transfers from AT&T to Astound typically complete within minutes to a few hours. You’ll receive confirmation once the port is finished and your AT&T line will automatically deactivate.

If your phone is locked to AT&T, request an unlock from AT&T after it’s fully paid off. Once unlocked, you can bring your phone to Astound using either a physical SIM or eSIM activation.

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Disclaimers

*Internet speeds vary, not guaranteed. Certain equipment may be required. See astound.com for details. Modem req’d. No contracts. Astound Internet is powered by fiber and connected to the premises via coaxial connection or fiber, where available. Delivery methods may vary by area. Subject to availability. Ltd-time offer; subj. to change without notice. Internet speeds under 1 Gig, pricing valid for 12 mos. Gig+ Internet speeds, pricing valid for 36 mos. Add’l fees apply for taxes, surcharges, & data overages, & are subj. to change. For details visit astound.com/fees. Enhanced WiFi or Whole Home WiFi included with Gig+; $5/mo for lower speeds or add’l devices. Regular rates apply after promo ends. Monthly price shown includes discount for enrolling in autopay & e-bill. $10 off/mo w/ bank acct autopay or $5 off/mo w/ credit/debit card autopay. Valid email & enrollment req’d. Must enroll w/in 30 days of order. Discount appears within 3 bill cycles, ends if autopay/e-bill is canceled, svcs change, or acct isn’t in good standing. ^Astound Mobile req’s Astound Internet service for activation. Max 5 lines. Equip., intl./roaming charges, taxes, fees extra & may change. Astound not liable for svc disruptions or outages. Higher rate applies if Internet not maintained. Mobile svc only in Astound areas. Pricing subj. to change. Data may slow during congestion. After 20GB, Unlimited plans slow to 768 Kbps; 1.5GB/3GB plans capped. No rollover; add’l data $10/GB. Coverage varies. Some features may require specific plans. Mobile svc includes BIAS w/ data, voice, texts & SMS. Other restrictions may apply. See astound.com/mobile for details. Offer valid for new res. customers or former customers in good standing w/out Astound svc in past 60 days. Add’l svcs, equip, premiums & tiers extra & subject to add’l charge & reg. increases. $14.99 one-time activation fee (plus install) applies & may change. Taxes & surcharges extra & subj. to change. WA RESIDENTS: unless otherwise specified, price does not include 2% Regulatory Administration Fee. Cust. responsible for any accrued charges. Subj. to credit check. Not all svcs/speeds avail. in all areas. 30-Day Money-Back Guarantee for new residential customers who cancel within 30 days of install. Maximum refund is equal to one month’s monthly recurring service fee of services & equip. ordered & installed. Refund within 60 days after conditions are satisfied. Refund not applicable to usage-based fees. All svcs are governed by Astound Customer Terms & Conditions found at astound.com/policies-disclaimers. © 2025 Radiate HoldCo, LLC d/b/a Astound Broadband. All rights reserved.

While we have made every attempt to ensure that the information contained in this site has been obtained from reliable sources, Astound is not responsible for any errors or omissions, or for the results obtained from the use of this information. All information in this site is provided “as is”, with no guarantee of completeness, accuracy, timeliness and without warranty of any kind, express or implied, including, but not limited to warranties of performance, merchantability and fitness for a particular purpose. Certain links in this site connect to other websites maintained by third parties over whom Astound has no control. Astound makes no representations as to the accuracy or any other aspect of information contained in other websites.

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