02 Official Online

Compare O2 Mobile & Broadband Plans and Sign Up

Get Expert Support from an Authorized Reseller to Find the Right Plan.As an authorized O2 reseller, we provide services and contracts directly through O2. All trademarks and brand names belong to their respective owners.

Help And Support

Account And Billing

We are a dedicated service helping you explore O2 Mobile and Broadband deals, compare options, and sign up quickly — with no extra fees.

Phone Plans Overview

Suitable Phone Plans

Plans to suit every need — choose from Pay Monthly, SIM Only, or budget-friendly options.Enjoy the best deals on high-speed internet, 5G & 4G mobile, mobile broadband, SIM-only plans, tablets, and fibre broadband.Easily manage your account online: check usage, pay bills, unlock your device, and more.

Smart Plans

Pick from a variety of inclusive extras — Apple Music, Netflix, BT Sport, and more — with the flexibility to upgrade your device whenever you like.

Pay Monthly Plans
Next-generation 5G and 4G phone plans packed with essential features, designed just for you.
SIM Only Plans
Keep your device and save — enjoy O2 SIM-only deals.
Multi-Line Discounts
Refer friends and add family members to your account to get up to 30% off extra lines for your household.

Welcome to O2 Mobile and Broadband Support!

Our mission is to provide clear plan information, useful comparisons, and a hassle-free sign-up experience.

Customer Care Help Topics

Account And Billing
We are a dedicated service helping you explore O2 Mobile and Broadband deals, compare options, and sign up quickly — with no extra fees.
1

Account Setup

2

Billing Help

3

New Connection Support

4

Add-on Extras

Promotions and Offers

Get three months’ airtime on us!
3 April / Ends
Meet the colourful new iPad

Product Categories

Phones

Choose Between Pay Monthly and Pay As You Go

Tablets

Stay connected wherever you go

Sims

Find the perfect SIM for your phone or tablet

Accessories

Browse the latest tech and mobile accessories

How It Works

Check out the latest mobile offers on our site.
Choose the option that suits your needs best.
Use our secure links to apply directly through the Care Center.
We’re here to help with any questions about signing up.

Quick Help

Review O2’s Latest Mobile Offers

Browse Help Topics

Find Your Nearest Store

Check Your Network Status And Coverage

Important Information

02officialsonline is an authorized O2 reseller. All mobile services and contracts are provided directly by O2.

Network Perks

Connect to the UK’s fastest and most reliable network with O2.Experience exceptional 5G coverage in major cities and a dependable signal — perfect for streaming, gaming, and everyday use.

Frequently Asked Questions (FAQ)

No, we are 02officialsonline, an authorized reseller that helps users explore and sign up for O2 Mobile and Broadband plans. All contracts and services are provided directly by O2.

No. Our service is completely free for users. While we may receive a referral commission from O2, it does not affect the price you pay.

For any technical or service-related issues after signing up, please reach out to O2 directly.

Legal and Regulatory Notices

This website is run by an authorized O2 reseller. All trademarks and brand names belong to their respective owners. All services and contracts are provided directly by O2 under their terms.

Pricing Information

The monthly cost of your Airtime Plan may change in accordance with O2’s official terms. If offered, the digital prepaid Mastercard® is issued by GVS Prepaid Ltd, an Electronic Money Institution authorized in the UK by the Financial Conduct Authority (FRN: 900230), under license from Mastercard International. See Terms & Conditions for details.