01920 Area Code — Ware, Hertford & Puckeridge
01920 is the UK dialling code for Ware in Hertfordshire, also serving Hertford, Puckeridge and Great Amwell, allocated by Ofcom under the National Telephone Numbering Plan. Our database has tracked 108 distinct 01920 numbers across 113 public lookups.
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Quick facts
Area code
01920
Location
Ware
County
Hertfordshire
Region
East of England
Number type
Geographic landline
Number format
01920 XXX XXX
Operators serving
8+
Call cost
Standard rate
About the 01920 dialling code
01920 is the UK geographic dialling code for Ware, allocated by Ofcom under the National Telephone Numbering Plan. It is used by landlines — and increasingly VoIP lines — registered to the Ware area.
A full Ware number is normally written as 01920 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 01920 number no longer guarantees the caller is physically in Ware. Fraudsters also "spoof" local codes like 01920 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 01920 dialling area
The marker shows Ware; the shaded circle is an approximate indication of the area the 01920 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 01920
Settlements in and around the Ware dialling area that typically use 01920 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 01920 from abroad
From outside the UK, dial your international access prefix, then the UK country code 44, then 1920 (the area code without its leading zero) and the local number.
| Calling from | Dial |
|---|---|
| United States & Canada | 011 44 1920 … |
| Europe / most of the world | 00 44 1920 … |
| Australia | 0011 44 1920 … |
| Any mobile phone | +44 1920 … |
History of the 01920 code
The code was 0920 until PhONEday, 16 April 1995, when a "1" was inserted after the leading zero to create 01920.
In the letter-dialling era the code had the mnemonic WA0 — on an old rotary dial, the letters WA (from Ware) sat on the same holes as the digits 920, so subscribers literally dialled the start of the town's name.
Top searched 01920 numbers
These are the 01920 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 |
|---|---|---|
| 01920 878754 | 2 | 1 Jul 2026 |
| 01920 822370 | 2 | 1 Jul 2026 |
| 01920 823332 | 2 | 30 Jun 2026 |
| 01920 446059 | 2 | 28 Jun 2026 |
| 01920 871089 | 2 | 27 Jun 2026 |
| 01920 469453 | 1 | 10 Jul 2026 |
| 01920 908380 | 1 | 30 Jun 2026 |
| 01920 560053 | 1 | 29 Jun 2026 |
| 01920 560114 | 1 | 29 Jun 2026 |
| 01920 560059 | 1 | 29 Jun 2026 |
| 01920 446121 | 1 | 29 Jun 2026 |
| 01920 438043 | 1 | 29 Jun 2026 |
| 01920 444215 | 1 | 29 Jun 2026 |
| 01920 871156 | 1 | 28 Jun 2026 |
| 01920 871094 | 1 | 28 Jun 2026 |
| 01920 560052 | 1 | 28 Jun 2026 |
| 01920 444281 | 1 | 28 Jun 2026 |
| 01920 560116 | 1 | 28 Jun 2026 |
| 01920 560057 | 1 | 28 Jun 2026 |
| 01920 444221 | 1 | 28 Jun 2026 |
Is a call from 01920 safe?
Most 01920 calls are ordinary local calls from Ware homes and businesses. The main risk to be aware of is "neighbour spoofing", where a scammer fakes a local 01920 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 01920 (Ware) number from outside the UK, drop the leading zero and dial +44 1920 followed by the local number.
Operators serving Ware
These UK communications providers have been allocated 01920 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 |
|---|---|
| GCI Network Solutions Limited | 12 |
| Virgin Media Limited | 11 |
| BT | 11 |
| Vodafone Ltd (C&W) | 8 |
| Sky UK Limited | 4 |
| Six Degrees Technology Group Limited | 3 |
| TalkTalk Communications Limited | 3 |
| Adepteo Limited | 2 |
Ofcom number ranges on 01920
Ofcom's National Numbering Plan lists 388 number blocks under 01920, of which 141 are allocated to 91 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) |
|---|---|---|
0192020… | Allocated | TelNG Limited |
0192021… | Allocated | TTNC Limited |
0192023… | Allocated | Localphone Limited |
0192024… | Allocated | (AQ) LIMITED |
0192025… | Allocated | Barritel Limited |
0192026… | Allocated | VoIP-Un Limited |
01920277… | Allocated | Spitfire Network Services Limited |
0192028… | Allocated | AQL Wholesale Ltd |
0192029… | Allocated | Voiceflex Limited |
01920318… | Allocated | TalkTalk Communications Limited |
01920319… | Allocated | TalkTalk Communications Limited |
0192032… | Allocated | Flextel Limited |
Showing 12 of 141 allocated blocks. Source: Ofcom telephone numbering data, updated weekly.
How to block and report 01920 spam calls
Block or report 01920
- You can block 01920 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 01920 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 01920 code
Where is the 01920 area code?
The 01920 area code is allocated by Ofcom to Ware in Hertfordshire, United Kingdom. It is a geographic UK landline dialling code under the National Telephone Numbering Plan. The surrounding dialling area also takes in Hertford, Puckeridge, Great Amwell and nearby villages.
Is 01920 always a Ware number?
Numbers with the 01920 prefix were originally allocated by Ofcom to Ware. 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 Ware.
How do I block 01920 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 01920 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 01920 call cost?
Calls to UK 01920 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 Ware — useful when a caller is nearby but outside the 01920 boundary.
Living in or moving to Ware?
Our free postcode reports cover house prices, crime, broadband and schools for the districts around Ware.
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.