Check specific places
Use Three’s official coverage checker for your home, workplace and regular travel destinations. Look separately at indoor and outdoor coverage where the checker provides it.
A map is an estimate
Buildings, terrain, device capability and local demand all affect real performance. If possible, ask somebody nearby who uses Three or test with a low-commitment option before taking a long contract.
Home Broadband needs an address-level decision
For 4G or 5G Home Broadband, check the exact service address and expected speeds. Hub placement near a suitable window can matter, but it cannot fix weak local coverage or congestion.
Questions about this topic
How much is the Three referral reward?
The current reward is up to £40 each for an eligible Pay Monthly phone, Home Broadband or Mobile Broadband order. Category maxima can be up to £25 for a Pay Monthly SIM and £12.50 for a tablet or laptop, although many live products show £20 and £10 respectively. The amount shown after opening the referral link is definitive.
Can I combine the referral with cashback or another offer?
Do not assume so. The referral portal says the online offer is not available through another purchase route or in conjunction with another offer. Compare the value first, then choose one tracked route and complete the order through it.