01737 Area Code — Redhill, Reigate & Banstead
01737 is the UK dialling code for Redhill in Surrey, also serving Reigate, Banstead and Merstham, allocated by Ofcom under the National Telephone Numbering Plan. Our database has tracked 149 distinct 01737 numbers across 182 public lookups.
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Quick facts
Area code
01737
Location
Redhill
County
Surrey
Region
South East England
Number type
Geographic landline
Number format
01737 XXX XXX
Operators serving
8+
Call cost
Standard rate
About the 01737 dialling code
01737 is the UK geographic dialling code for Redhill, allocated by Ofcom under the National Telephone Numbering Plan. It is used by landlines — and increasingly VoIP lines — registered to the Redhill area.
A full Redhill number is normally written as 01737 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 01737 number no longer guarantees the caller is physically in Redhill. Fraudsters also "spoof" local codes like 01737 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 01737 dialling area
The marker shows Redhill; the shaded circle is an approximate indication of the area the 01737 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 01737
Settlements in and around the Redhill dialling area that typically use 01737 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 01737 from abroad
From outside the UK, dial your international access prefix, then the UK country code 44, then 1737 (the area code without its leading zero) and the local number.
| Calling from | Dial |
|---|---|
| United States & Canada | 011 44 1737 … |
| Europe / most of the world | 00 44 1737 … |
| Australia | 0011 44 1737 … |
| Any mobile phone | +44 1737 … |
History of the 01737 code
The code was 0737 until PhONEday, 16 April 1995, when a "1" was inserted after the leading zero to create 01737.
In the letter-dialling era the code had the mnemonic RE7 — on an old rotary dial, the letters RE (from Redhill) sat on the same holes as the digits 737, so subscribers literally dialled the start of the town's name.
Top searched 01737 numbers
These are the 01737 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.
| Number | Searches | Last looked up |
|---|---|---|
| 01737 947959 | 5 | 10 Jul 2026 |
| 01737 881495 | 5 | 9 Jul 2026 |
| 01737 886539 | 5 | 1 Jul 2026 |
| 01737 952209 | 4 | 4 Jul 2026 |
| 01737 302386 | 4 | 25 Jun 2026 |
| 01737 881426 | 4 | 21 Jun 2026 |
| 01737 366314 | 2 | 9 Jul 2026 |
| 01737 881581 | 2 | 8 Jul 2026 |
| 01737 788109 | 2 | 29 Jun 2026 |
| 01737 301791 | 2 | 29 Jun 2026 |
| 01737 303189 | 2 | 26 Jun 2026 |
| 01737 227522 | 2 | 24 Jun 2026 |
| 01737 227590 | 2 | 24 Jun 2026 |
| 01737 886729 | 2 | 18 Jun 2026 |
| 01737 366317 | 2 | 17 Jun 2026 |
| 01737 559608 | 2 | 9 Jun 2026 |
| 01737 301422 | 2 | 7 Jun 2026 |
| 01737 842311 | 2 | 30 May 2026 |
| 01737 339703 | 1 | 11 Jul 2026 |
| 01737 775640 | 1 | 10 Jul 2026 |
Is a call from 01737 safe?
Most 01737 calls are ordinary local calls from Redhill homes and businesses. The main risk to be aware of is "neighbour spoofing", where a scammer fakes a local 01737 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 01737 (Redhill) number from outside the UK, drop the leading zero and dial +44 1737 followed by the local number.
Operators serving Redhill
These UK communications providers have been allocated 01737 number blocks by Ofcom. The number of blocks per operator gives a rough sense of how widely each provider serves this area.
| Provider (Ofcom-allocated) | Allocated blocks |
|---|---|
| BT | 24 |
| Virgin Media Limited | 18 |
| Sky UK Limited | 12 |
| Vodafone Ltd (C&W) | 11 |
| Gamma Telecom Holdings Limited | 9 |
| GCI Network Solutions Limited | 8 |
| GTT-EMEA LTD | 6 |
| Colt Technology Services | 6 |
Ofcom number ranges on 01737
Ofcom's National Numbering Plan lists 433 number blocks under 01737, of which 212 are allocated to 103 communications providers. The first allocated blocks are shown below — look up any full number with the number checker to see its exact range holder.
| Number block | Status | Range holder (Ofcom-allocated) |
|---|---|---|
0173719… | Allocated | BT |
01737200… | Allocated | Sky UK Limited |
01737201… | Allocated | Sky UK Limited |
01737202… | Allocated | Sky UK Limited |
0173721… | Allocated | Virgin Media Limited |
0173722… | Allocated | BT |
0173723… | Allocated | BT |
0173724… | Allocated | BT |
01737252… | Allocated | Virgin Media Limited |
01737254… | Allocated | Virgin Media Limited |
01737263… | Allocated | Digital Space Group Limited |
0173727… | Allocated | Virgin Media Limited |
Showing 12 of 212 allocated blocks. Source: Ofcom telephone numbering data, updated weekly.
How to block and report 01737 spam calls
Block or report 01737
- You can block 01737 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.
How to stop unwanted calls for good
Blocking 01737 numbers stops that one number, but determined nuisance callers simply switch numbers. Silencing unknown callers, enabling your network's free spam shield and registering with the TPS cut the volume across the board — our canonical guide walks through each step: How to block and report unwanted calls in the UK.
Frequently asked questions about the 01737 code
Where is the 01737 area code?
The 01737 area code is allocated by Ofcom to Redhill in Surrey, United Kingdom. It is a geographic UK landline dialling code under the National Telephone Numbering Plan. The surrounding dialling area also takes in Reigate, Banstead, Merstham and nearby villages.
Is 01737 always a Redhill number?
Numbers with the 01737 prefix were originally allocated by Ofcom to Redhill. With UK number portability and VoIP allowing geographic relocation while keeping the same number, the call origin can differ from the original area, but the prefix's official assigned location remains Redhill.
How do I block 01737 spam calls?
On iPhone, tap the (i) next to the number in Recents and choose Block this Caller. On Android, long-press the number in Recents and choose Block. To prevent unknown 01737 numbers ringing, enable Settings → Phone → Silence Unknown Callers (iPhone) or your dialler's spam filter (Android). Forward spam texts to 7726 free of charge.
How much does a 01737 call cost?
Calls to UK 01737 geographic numbers are charged at your provider's standard rate and are usually included in inclusive minutes on any modern landline or mobile plan.
Neighbouring dialling codes
Codes covering areas around Redhill — useful when a caller is nearby but outside the 01737 boundary.
Living in or moving to Redhill?
Our free postcode reports cover house prices, crime, broadband and schools for the districts around Redhill.
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.