UK area code
01871 — Castlebay
The 01871 dialling code covers Castlebay in Outer Hebrides. Below are the currently-allocated Ofcom number ranges and the Range Holders they are assigned to.
About the 01871 dialling code
01871 is the UK area code for Castlebay and the surrounding Outer Hebrides area, listed in Ofcom’s National Telephone Numbering Plan. When a UK landline calls you and the number begins +44 1871 the originating exchange is most likely physically located in or near Castlebay. Numbers in this code are allocated to UK communications providers in 1,000- or 10,000-number blocks; the table below shows which Range Holder Ofcom assigned each block to.
This is the same data Ofcom publishes every Wednesday in the public UK Numbering Data feed. We re-ingest the snapshot weekly, so the allocations you see here are at most seven days old. Because UK numbers are portable, the current carrier of any specific number on 01871 can differ from the Range Holder shown — see Range Holder vs current provider for the full explanation.
To identify a specific 01871 number, paste it into the lookup form above. You will see the Range Holder, the allocation status, the area-code metadata for Castlebay, and a live AI internet check summarising any public web reports about that exact number — useful when an unfamiliar 01871 caller turns out to be a legitimate local business, a national contact-centre, or a scam.
Range holders on 01871
No Range Holder data is currently loaded for this code. Run the weekly Ofcom ingest to populate.
All allocated ranges on 01871
Showing up to 200 ranges, ordered by prefix.
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Related lookups
FAQs about 01871
What does the 01871 area code cover?
01871 is the UK dialling code for Castlebay and the wider Outer Hebrides area. When you receive a call starting with 01871 from a UK landline, the originating exchange is likely in or near Castlebay.
Is a 01871 number safe?
Most calls from 01871 are legitimate landlines. Scammers can however spoof any UK area code, so a 01871 prefix alone doesn't guarantee safety. Use the lookup above to see the Range Holder, then read the AI internet check for behavioural reports.
How many providers operate 01871 number ranges?
Across the 0 ranges currently visible, 0 different Range Holders are listed. The top allocations are typically held by Openreach (BT), Virgin Media O2 and Sky.