Norwich has been a market city for a thousand years, and a 01603 number tells customers your business is part of a place with deep roots and a modern outlook.
A 01603 Norwich phone number can ring on whichever device you prefer, and a UK-based team looks after it for as long as you use it.
You can move numbers you own across to us, and new ones can be added if you want something fresh. These are the main benefits of 01603 Norwich phone numbers:
Insurers, scientists and independent shops across the city use 01603 Norwich phone numbers. If desk phones and apps are on your list as well, our business phone system in Norwich page describes a complete system.
See how handsets and apps can work with a Norwich number on our VoIP phone systems page.
Norwich blends financial services and insurance with life sciences at the Norwich Research Park, the University of East Anglia, a creative scene around the Lanes and a busy retail core.
01603 Norwich phone numbers put a firm in that company, from Riverside to Thorpe St Andrew.
Insurers and advisers work around Surrey Street and Riverside, scientists around the Research Park and the university, and independent shops around the Lanes and the market. A Norwich number lets you answer all of them from any desk.
New businesses often take 01603 Norwich phone numbers before they find premises, and firms in Ipswich, Cambridge or Peterborough add one to look local across Norfolk.
On a van in Sprowston, a window card on Elm Hill or a stall at the market, a 01603 number reaches Norwich and its suburbs without an office in the city.
The 01603 area code covers Norwich and the suburbs around it, including Sprowston, Costessey and Thorpe St Andrew. It takes in the city centre, the Lanes and districts such as:
Great Yarmouth, Wymondham, Dereham and Cromer fall outside 01603, with codes of their own. Tell us an address and we will confirm which code belongs to it.
A 01603 number can ring a team in Wymondham or a home worker in Aylsham as easily as an office on Riverside, and callers across the suburbs above recognise the code.
If you want handsets, apps and a full phone system, our business phone system in Norwich page has the details.
Norwich and its suburbs share one geographic code, 01603, followed by six digits. This section shows how to dial it and which nearby towns use something different.
Dial 01603 and the six digits after it, as in 01603 xxx xxx. A landline, a mobile and an app all follow the same pattern.
From overseas, enter +44 1603 and the six digits, leaving out the 0 that begins the area code.
Great Yarmouth uses 01493, Wymondham 01953, Dereham 01362, Aylsham 01263 and North Walsham 01692. We can supply numbers for those places too.
Need a 01603 number as well as another code? Tell us and one routing plan can serve both.
The essential facts about 01603 Norwich phone numbers sit together in this table.
| Area code | 01603, the dialling code for Norwich and its suburbs |
|---|---|
| Number format | 01603 followed by six digits, such as 01603 2xx xxx |
| Number type | A geographic landline number; calls can go to a mobile, a desk handset or a laptop app |
| Neighbouring codes | Great Yarmouth 01493, Wymondham 01953, Dereham 01362, Aylsham 01263 |
| Cost to call | Depends on the caller’s provider and tariff, and is often already covered by a landline or mobile bundle |
| Where it can be answered | Anywhere in the UK |
Norwich numbers are supplied by providers that answer to Ofcom, and the calls run over Tier 1 networks. You can bring a number you own or start a new one, and a Norwich address is not needed.
Talk to our team about numbers and pricing.
Choose the 01603 number and the place it should ring, and our engineers do the rest. Your 01603 Norwich phone numbers can then be answered on a mobile, a desk handset, a laptop softphone or a hosted system, and you can change your mind later.
If the team moves from Riverside to a co-working space in Sprowston, callers dial exactly what they dialled before. A number you own can be transferred, and more 01603 Norwich phone numbers can be added for another premises.
Request the free 01603 Norwich phone numbers and we will send what is available today. After you choose, we arrange the forwarding and confirm a start date. If you need pricing, ask for a quote and we will talk it through.
A number with a loyal following can usually stay with you. Share it with us, along with your supplier’s name, and we will explain how the move works.
More than 100 countries are covered by numbers from our platform suppliers. A buyer in Denmark or Ireland rings a local number and the call arrives in Norwich, which helps insurers and research firms with clients overseas.
Tier 1 networks carry each of these numbers, including calls between colleagues and clients in other countries.
Name the countries that matter to you, and we will explain what is available and what it costs.
Norwich, Norfolk and businesses across the UK depend on Blake Telecom for business phone numbers and communications services.
Customers in other cities need not feel remote. Our UK business phone numbers supply a number that looks local to them, and our VoIP phone solutions scale with your team.
Many Norwich businesses start with a hosted PBX or Cloud PBX behind the number, then bring in UCaaS and CCaaS tools as messaging, video or a contact centre become useful.
With calls linked to your CRM, every conversation is stored against the right customer record, and AI-generated call summaries draft the notes for you. Business mobiles serve colleagues out and about, while fibre broadband or business broadband from us steadies the line.
Look at who stands behind 01603 Norwich phone numbers. Our platform won two Gold awards in 2026 and is placed among the Leaders in the 2025 GigaOm Radar, and Blake Telecom is a Corporate Vision Most Trusted Business Communications Specialist.
In 2026 the platform we install collected two Gold awards, in 2025 it reached Leader status in the GigaOm Radar, and Blake Telecom holds a Corporate Vision title.
Customer Service Team of the Year
At the 24th American Business Awards in April 2026 the platform won this title, plus Gold for Achievement in Management, two Silvers and a Bronze.
Product UX
Gold in April 2026 for the platform’s mobile workspace, which puts calls, video and team chat into one screen.
Contact Centre as a Service
Placed as a Leader and Fast Mover in the 2025 GigaOm Radar for CCaaS, a review that weighs contact centre platforms on features and how quickly they develop.
The platform we supply won these awards. Verified reviews from its users are listed on Gartner Peer Insights.
Business communications is the only thing we have worked on since 2004. Your 01603 Norwich phone numbers are planned and tested by a UK-based team, who remain easy to contact.
Blake Telecom have been supplying our business communications for well over 10 years. We have found both their systems and support to be fully robust, and they have given an excellent service throughout, with value for money for their products. Their approach to helping our business has always been excellent from every aspect and I would highly recommend their services.
Blake Telecom have been paramount to the growth of our business by continuing to offer our business the very highest level of service. The equipment we have been supplied has been extremely flexible, allowing us to adapt as our needs change. Blake Telecom’s knowledge and expertise have been very professional, and we look forward to working together on our future projects.
Blake Telecom have revolutionised the way we operate. They have gone the extra mile in making the setup process painless, and it was easy to install. Any questions are dealt with quickly and efficiently, and the staff are a pleasure to deal with. I truly wish we had found them years ago. We recommend Blake Telecom to many of our suppliers and even customers whenever we can.
When we moved to rural office space, without the benefit of reasonable broadband speed or any telephony services in place, Blake Telecom directed us to alternatives, and the solution we have is excellent. 4G Wi-Fi VoIP serves our current needs and situation perfectly. The team were succinct in their explanation of what we could achieve, providing something promptly and getting this set up with minimum fuss and delay.
Norwich businesses most often ask the questions below about 01603 Norwich phone numbers. Our blog has more detail, and you can reach the team through the contact page.
Prefer to talk? Ring 01603 267 511.
Would 01603 Norwich phone numbers help customers see you as part of the Fine City? Get in touch and we will say which are free and where the calls could ring.
We see what is available, agree where calls should land and do the setup. Plenty of Norwich firms begin with a single number and add more when a second shop or office opens.
You can reach us between 9am and 5.30pm on weekdays, and the contact page shows further ways to get in touch.
Reviewed by Aaron Barrowman, Engineer at Blake Telecom, on 23/10/2026.