01851 Area Code — Stornoway, Isle of Lewis & Sandwick

01851 is the UK dialling code for Stornoway in Eilean Siar, also serving Isle of Lewis, Sandwick, allocated by Ofcom under the National Telephone Numbering Plan. Our database has tracked 66 distinct 01851 numbers across 69 public lookups.

Quick facts

About the 01851 dialling code

01851 is the UK geographic dialling code for Stornoway, allocated by Ofcom under the National Telephone Numbering Plan. It is used by landlines — and increasingly VoIP lines — registered to the Stornoway area.

A full Stornoway number is normally written as 01851 XXXXXX. You can dial the local part on its own from within the same area, or the full number from anywhere in the UK.

Because of UK number portability and internet calling, a 01851 number no longer guarantees the caller is physically in Stornoway. Fraudsters also "spoof" local codes like 01851 so an unknown call looks like a nearby business or neighbour — so treat an unexpected call on what is actually said, not on the area code alone.

Map of the 01851 dialling area

The marker shows Stornoway; the shaded circle is an approximate indication of the area the 01851 code serves — exact Ofcom charging-area boundaries are irregular and don't follow a neat radius.

Map data © OpenStreetMap contributors. View larger map

Areas typically served by 01851

Settlements in and around the Stornoway dialling area that typically use 01851 numbers. Approximate — Ofcom charging-area boundaries don't follow town or county lines exactly, and properties near a boundary may take a neighbouring code.

Calling 01851 from abroad

From outside the UK, dial your international access prefix, then the UK country code 44, then 1851 (the area code without its leading zero) and the local number.

History of the 01851 code

The code was 0851 until PhONEday, 16 April 1995, when a "1" was inserted after the leading zero to create 01851.

Top searched 01851 numbers

These are the 01851 numbers most-looked-up by visitors to our number checker. Click any number to see its full lookup page with risk-level, range holder, and community reports.

Is a call from 01851 safe?

Most 01851 calls are ordinary local calls from Stornoway homes and businesses. The main risk to be aware of is "neighbour spoofing", where a scammer fakes a local 01851 prefix so you are more likely to answer. Never share bank details, passwords or one-time security codes with an unexpected caller, even when the number looks local — hang up and call the organisation back on a number you have verified yourself.

To call a 01851 (Stornoway) number from outside the UK, drop the leading zero and dial +44 1851 followed by the local number.

Operators serving Stornoway

These UK communications providers have been allocated 01851 number blocks by Ofcom. The number of blocks per operator gives a rough sense of how widely each provider serves this area.

Ofcom number ranges on 01851

Ofcom's National Numbering Plan lists 559 number blocks under 01851, of which 156 are allocated to 83 communications providers. The first allocated blocks are shown below — look up any full number with the number checker to see its exact range holder.

Showing 12 of 156 allocated blocks. Source: Ofcom telephone numbering data, updated weekly.

How to block and report 01851 spam calls

Block or report 01851

• You can block 01851 directly from your recent-calls list on iPhone or Android, and forward scam texts free to 7726.
• Scam or fraud calls should be reported to Action Fraud (0300 123 2040) or Police Scotland (101); persistent marketing calls to the ICO / TPS.

Full step-by-step instructions for every phone, network-level blocking and all UK reporting routes are in our guide: How to block and report unwanted calls in the UK.

Frequently asked questions about the 01851 code

Neighbouring dialling codes

Codes covering areas around Stornoway — useful when a caller is nearby but outside the 01851 boundary.

Living in or moving to Stornoway?

Our free postcode reports cover house prices, crime, broadband and schools for the districts around Stornoway.

Check another UK number

Have the full 10- or 11-digit number? The UK Phone Number Checker shows the Ofcom range holder, risk level, and any community reports for that specific number.