0800 Freephone numbers UK

About 0800 numbers in the UK

The 0800 prefix is part of the UK National Telephone Numbering Plan administered by Ofcom and falls into the Freephone family. 0800 calls are free to the caller from UK landlines and mobiles. Used by businesses, charities and government.

Ofcom allocates 0800 number ranges to UK communications providers (Range Holders) in 1,000- or 10,000-number blocks. The table below lists every currently-allocated block we have ingested from Ofcom’s weekly Numbering Data feed. Click any Range Holder to see their full UK portfolio, or paste a specific number into the lookup form above to see the originating provider, the allocation status, and a live AI internet check for any public reports about that exact number.

For a deeper explainer on how UK number prefixes are organised, see UK area codes explained, How Ofcom allocates UK phone numbers, and the UK phone number format guide. If you have received a 0800 call you are unsure about, our who-called-me UK guide walks through the safe identification routine in under a minute.