19 February 2019
Bury Grammar School
A quote from David Glynn, Head of Estates, Bury Grammar School
More"When a London-based e-commerce client switched to an 0800 number, their abandoned call rate dropped by 35% in weeks." This is the power of non-geographic numbers (NGNs)—phone numbers untethered to physical locations. As someone who’s implemented NGNs for industries ranging from healthcare to SaaS, I’ll show you:
An NGN is a virtual phone number that routes calls via the cloud. Unlike geographic numbers (e.g., 020 for London), NGNs:
✔ Aren’t tied to an address → Accept calls anywhere
✔ Project professionalism → Toll-free (0800) numbers signal credibility
✔ Enable analytics → Track call sources, durations, and outcomes
A Brighton-based accounting firm used an 0844 number to appear national. Result? 28% more inbound leads from northern England.
| Type | Example Prefix | Who Pays? | Avg. Setup Cost | Best For |
| Toll-Free | 0800, 1800 | Business | £10-£50/month | Customer service |
| Premium-Rate | 0900, 118 | Caller | £50+ setup | TV voting, helplines |
| Virtual | 0560, 0330 | Hybrid | £5-£20/month | Remote teams |
Pro Tip: OFCOM’s 2024 rules cap 0800 call charges at 7p/min for businesses—factor this into budgets.
Step 1: Choose a Compliant Provider
Step 2: Pick Your Number Type
Step 3: Configure Call Flow
Warning: Avoid providers that don’t offer call encryption—we’ve seen scams exploit insecure NGNs.
Ideal for:
Not ideal for:
Q: Can I port my existing number to an NGN?
A: Yes—OFCOM mandates number portability. We recently moved a client’s 020 number to a cloud NGN in 48 hours.
Q: Are NGNs reliable?
A: With VoIP, uptime exceeds 99.9%. We recommend providers like [Trusted Provider] for redundancy.
Q: How long does setup take?
A: Most numbers activate in under 24 hours (vs. weeks for traditional lines).
NGNs are no longer just for enterprises. Last quarter, we helped a 3-person consultancy:
A non-geographic number (NGN) is a UK phone number (e.g., 0800, 0844, 0330) not tied to a physical location. Calls are routed via VoIP to any device. OFCOM regulates these numbers to ensure fair pricing and transparency.
Yes, OFCOM mandates that 0800 calls are free from all UK mobiles and landlines as of 2024. Businesses pay for inbound calls, making them ideal for customer service.
Yes! OFCOM’s "number portability" rules let you transfer existing geographic numbers (e.g., 020) to NGN providers. Transfer times range from 24 hours to 2 weeks.
0800: Free for callers, business pays. Best for customer trust.
0845: Shared cost (caller pays 7p/min + service charge). Often used for helplines.
Reputable providers (e.g., Gamma, Vonage) offer encryption, fraud monitoring, and OFCOM compliance. Avoid "grey route" carriers to prevent scams.
Absolutely! Virtual NGNs (e.g., +44 330) accept global calls. Some providers offer local numbers in 100+ countries (e.g., +1 for the US).
Advanced NGNs include call analytics dashboards, showing:
- Call sources (Google Ads, social media).
- Peak call times.
- Call duration/outcomes.
For SMEs, we recommend:
- 0800: If you want customers to call free.
- 0330: Low-cost, professional alternative to geographic numbers.
19 February 2019
A quote from David Glynn, Head of Estates, Bury Grammar School
More