Mobile, Internet & Family — All in One Place

Seiretsu brings your whole family together with fast mobile plans, reliable home internet, and dedicated family support built right in. Whether you need unlimited talk & text for the kids, a high-speed connection at home, or a single bill that covers everyone — we have a plan designed for you. One provider, one bill, and a team always ready to help.

Happy family connected with Seiretsu

Our Plans

Choose the plan that fits your needs — mobile, internet, or a family bundle. Click Add to Cart, complete your SIM and personal details, and you will be connected in minutes — no store visit, no contracts.

Everything Your Family Needs

Mobile service, home internet, and family support — all under one roof.

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Nationwide 5G Mobile

Blazing-fast 5G coverage for every member of the family, with unlimited talk, text, and data on the country's largest network.

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Home Internet

High-speed broadband that keeps up with streaming, remote work, and homework — all at the same time, without slowdowns.

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Family Plans & Bundles

Add lines for the whole family and save. Mix mobile and internet in one convenient bundle with a single monthly bill.

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Wi-Fi Calling & Hotspot

Make crystal-clear calls over Wi-Fi and share your connection with other devices — included in every plan at no extra cost.

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Dedicated Family Support

Our support team is always available to help every member of your family — from setting up a new device to troubleshooting your home connection.

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No Hidden Fees

The price you see is the price you pay. No activation fees, no overage charges, no annual contracts — ever.

Choose Your Plan

Pick the plan that fits your life. No contracts, no surprises.

Phones

Choose a device to go with your plan.

Change Plan

Log in to view and select from your available upgrade plans.

About Seiretsu Xi Wireless

Privacy is not a feature. It is the foundation of a free, intelligent future.

Seiretsu Xi Wireless was founded on a simple belief: in an age where AI touches every corner of our lives, privacy should not be the price of connectivity. Mobile networks have quietly become one of the most powerful engines of data extraction in the modern world — collecting, correlating, and monetizing the intimate details of our daily movements. Most people never see it happening, yet it shapes everything from the ads we receive to the inferences algorithms make about who we are.

We're building a different path.

Seiretsu Xi Wireless exists to reimagine what mobile infrastructure can be in an AI-driven future — one where individuals retain control over their digital identity, and where connectivity enhances autonomy instead of eroding it. We believe privacy isn't a feature; it's a foundation. And the only way to protect it is to rebuild the system from the ground up.

As AI becomes more capable, the value — and vulnerability — of personal data grows exponentially. Metadata that once seemed trivial now fuels predictive models that can map our routines, preferences, and even our intentions. The future demands a new kind of carrier: one that treats privacy as infrastructure, not marketing.

Seiretsu Xi Wireless is that carrier.

We're designing a network for the next era of digital life — secure by default, transparent by design, and built to empower individuals in a world where intelligence is ambient and always on. Our goal is not just to offer service, but to restore trust in the most essential technology we rely on every day: our phones.

The future of AI should expand human freedom. We're here to make sure it does.

Mission

To build a wireless network that restores individual autonomy in an AI-driven world. We engineer connectivity without surveillance, identity without exploitation, and mobile infrastructure that protects people instead of profiling them. Our mission is to ensure that every person has full control over their mobile presence — no hidden data pipelines, no behavioral tracking, no silent tradeoffs.

Privacy is not a setting. It is the foundation of a free, intelligent future.

Vision

We envision a world where mobile networks empower individuals rather than extract from them. A world where AI enhances human capability without consuming personal data. A world where your identity is sovereign, encrypted, and entirely yours.

Seiretsu Xi Wireless is building the infrastructure for that world — privacy first, secure at the core, transparent in every interaction, and designed to protect human agency as AI becomes ubiquitous.

Our vision is simple: To redefine what a wireless carrier can be, and to set the global standard for privacy in the age of intelligent networks.

Values

  • Autonomy Above All — Your identity belongs to you. We build systems that reinforce personal sovereignty, not corporate ownership.
  • Privacy as Infrastructure — Privacy isn't a toggle or a marketing line — it's the architecture. Every layer of our network is engineered to protect, not extract.
  • Transparency by Design — No hidden brokers. No silent data flows. You should always know how your network behaves.
  • Security as a Default State — Protection shouldn't require expertise. Our systems are secure out of the box, not after configuration.
  • Human-Centered Technology — AI should amplify human freedom, not erode it. We design with people — not algorithms — as the primary stakeholder.
  • Zero Compromise Connectivity — You shouldn't have to choose between being connected and being safe. We deliver both, without tradeoffs.

Contact Us

Our team is ready to assist you. Fill out the form, and we'll respond promptly.

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Phone

1(877) 834-5766
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Address

6967 Dilly Lake Avenue, Groveland, FL 34736

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Payment Details

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Frequently Asked Questions

Everything you need to know about Seiretsu Mobile, Internet, and Family plans.

How do I sign up for a plan?

Click Plans in the navigation menu, select the category that fits your needs — Mobile, Internet, or Family — then click Add to Cart on your chosen plan. You will be guided through entering your User ID, personal details, and payment information. The whole process takes just a few minutes with no store visit required.

What is the difference between Mobile, Internet, and Family plans?

Mobile plans provide unlimited talk, text, and 5G data for individual lines — perfect for personal use on the go. Internet plans deliver high-speed home broadband with no data caps, no speed throttling, and no contracts, using a 5G gateway device. Family plans bundle multiple mobile lines — and optionally home internet — into a single bill with multi-line discounts applied automatically.

Can I keep my existing phone number (Port-In)?

Yes. During sign-up, check the Port-In my existing number box and enter your current phone number, postal code, and the account PIN from your previous carrier. We will handle the transfer automatically. Your old number stays active until the port completes — typically within 1–3 business days — so there is no gap in service.

What network does Seiretsu use?

Seiretsu runs on America's largest 5G network, providing broad nationwide coverage. Where 5G is not yet available, your device automatically falls back to LTE so you stay connected. Our home Internet plans use the same 5G infrastructure delivered through a plug-and-play 5G gateway — no technician visit needed.

Do you offer international calling and data?

Yes. Seiretsu Mobile plans include free unlimited calling and texting to 85+ countries and discounted rates to an additional 140 countries. Select plans also include world lifetime eSIM data (5 GB–20 GB depending on tier) so you can stay connected abroad without buying a local SIM.

What is a User ID and how do I choose one?

Your User ID is the unique username you will use to log in to your Seiretsu account and access the self-service portal. Choose something memorable — it cannot be changed after sign-up. Your User ID is separate from your phone number or email address.

Can I use my own device (BYOD)?

Yes. Seiretsu supports Bring Your Own Device on all mobile plans. Your phone must be unlocked and compatible with our network. We also sell unlocked devices directly through the Phones section of this portal. Both physical SIM and eSIM activation are supported.

Are there contracts or activation fees?

There are no annual contracts — all plans are month-to-month. A one-time activation charge of $34.99 applies to new mobile lines. Home Internet plans include the 5G gateway device at $299.99. Taxes and fees apply and will be shown at checkout.

How do I change or upgrade my plan?

Click Change Plan in the navigation menu, log in with your User ID and password, and select a new plan from the available options. Changes take effect on your next billing cycle. There are no penalties for upgrading or switching plans.

How do I get support?

You can reach us through the Contact Us page, by emailing WhatsApp. Our Help Desk is also available at seiretsu.odoo.com.