Unlimited is a product definition
Check the terms behind the headline allowance.
Read the permitted use.
Check whether the product permits tethering, router use or the type of device you intend to use. Personal use, commercial use and automated activity can be treated differently under the terms.
Separate capacity from speed.
An unlimited data volume does not establish an unrestricted speed. Device capability, congestion, signal, network generation and any product speed limit can affect performance.
Check application benefits.
An app-specific data feature may exclude external links, advertisements, voice calls or particular services. It may also require an active base allowance. Read the exact eligible-app list and exclusions.
Look abroad separately.
Domestic unlimited data usually needs a separate roaming assessment. Check the overseas fair-use amount, destination eligibility and how any pass works. Only the official provider can confirm your account entitlement.
Confirm before acting
These are general preparation notes, reviewed 9 November 2026. Account-specific conditions must be checked with the official provider.
Ofcom switching guidance ↗Ofcom network-generation information ↗Provider reference directory