01707 Area Code — Welwyn Garden City, UK
01707 is the UK dialling code for Welwyn Garden City, allocated by Ofcom under the National Telephone Numbering Plan. Our database has tracked 216 distinct 01707 numbers across 310 public lookups.
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Quick facts
Area code
01707
Location
Welwyn Garden City
Number type
Geographic landline
Number format
01707 XXX XXX
Operators serving
8+
Call cost
Standard rate
About the 01707 dialling code
01707 is the UK geographic dialling code for Welwyn Garden City, allocated by Ofcom under the National Telephone Numbering Plan. It is used by landlines — and increasingly VoIP lines — registered to the Welwyn Garden City area.
A full Welwyn Garden City number is normally written as 01707 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 01707 number no longer guarantees the caller is physically in Welwyn Garden City. Fraudsters also "spoof" local codes like 01707 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.
Top searched 01707 numbers
These are the 01707 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 |
|---|---|---|
| 01707 942933 | 9 | 30 Jun 2026 |
| 01707 942930 | 9 | 24 Jun 2026 |
| 01707 942944 | 7 | 1 Jul 2026 |
| 01707 242967 | 6 | 26 Jun 2026 |
| 01707 942943 | 6 | 17 Jun 2026 |
| 01707 939314 | 6 | 17 Jun 2026 |
| 01707 247200 | 6 | 9 Jun 2026 |
| 01707 942935 | 5 | 4 Jul 2026 |
| 01707 942932 | 5 | 24 Jun 2026 |
| 01707 942929 | 4 | 4 Jul 2026 |
| 01707 299334 | 4 | 4 Jul 2026 |
| 01707 935425 | 4 | 30 Jun 2026 |
| 01707 331414 | 4 | 19 Jun 2026 |
| 01707 900256 | 3 | 2 Jul 2026 |
| 01707 942934 | 3 | 1 Jul 2026 |
| 01707 888333 | 3 | 30 Jun 2026 |
| 01707 247206 | 3 | 25 Jun 2026 |
| 01707 241974 | 3 | 20 Jun 2026 |
| 01707 942755 | 2 | 5 Jul 2026 |
| 01707 246962 | 2 | 5 Jul 2026 |
Is a call from 01707 safe?
Most 01707 calls are ordinary local calls from Welwyn Garden City homes and businesses. The main risk to be aware of is "neighbour spoofing", where a scammer fakes a local 01707 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 01707 (Welwyn Garden City) number from outside the UK, drop the leading zero and dial +44 1707 followed by the local number.
Operators serving Welwyn Garden City
These UK communications providers have been allocated 01707 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 | 33 |
| Gamma Telecom Holdings Limited | 17 |
| Verizon UK Limited | 11 |
| Sky UK Limited | 10 |
| Virgin Media Limited | 8 |
| Magrathea Telecommunications Limited | 7 |
| GCI Network Solutions Limited | 7 |
| Vodafone Ltd (C&W) | 6 |
How to block and report 01707 spam calls
Block or report 01707
- You can block 01707 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 01707 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 01707 code
Where is the 01707 area code?
The 01707 area code is allocated by Ofcom to Welwyn Garden City, United Kingdom. It is a geographic UK landline dialling code under the National Telephone Numbering Plan.
Is 01707 always a Welwyn Garden City number?
Numbers with the 01707 prefix were originally allocated by Ofcom to Welwyn Garden City. 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 Welwyn Garden City.
How do I block 01707 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 01707 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 01707 call cost?
Calls to UK 01707 geographic numbers are charged at your provider's standard rate and are usually included in inclusive minutes on any modern landline or mobile plan.
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.