Who called me from a Sigma Voice Solutions Ltd number?
Sigma Voice Solutions Ltd is a UK communications provider. Look up any of its 22 Ofcom-allocated number blocks below.
Sigma Voice Solutions Ltd is a UK communications provider. That means Ofcom has allocated Sigma Voice Solutions Ltd one or more blocks of UK telephone numbers under the National Telephone Numbering Plan, which Sigma Voice Solutions Ltd can either use for its own customers or sub-allocate to resellers and downstream providers. In total, Sigma Voice Solutions Ltd currently holds 22 allocated number blocks in our copy of the Ofcom plan.
Sigma Voice Solutions Ltd's number ranges are concentrated in 0372, 0872, 0800, 0300. Across all of its allocations the split is roughly 11 03 non-geographic, 9 premium-rate, 2 freephone blocks. You can use the tables below to jump straight to a specific Sigma Voice Solutions Ltd area code or number block and see the common call patterns reported for it.
The oldest Sigma Voice Solutions Ltd number block in the Ofcom data was allocated in 2007, and the most recent in 2017. Allocation dates matter because a number that has been live for many years is more likely to be a settled business or residential line, whereas a very recently-allocated block is more commonly seen in VoIP and virtual-number services — the kind sometimes used for short-lived marketing or scam campaigns.
Is a Sigma Voice Solutions Ltd number safe to answer? In most cases, yes — the overwhelming majority of calls from any UK provider's range are ordinary, legitimate calls. However, two things are important to understand. First, because Sigma Voice Solutions Ltd can sub-allocate or resell its numbers, the fact that a number sits in a Sigma Voice Solutions Ltd block does not mean Sigma Voice Solutions Ltd itself is calling you. Second, UK caller IDs can be spoofed: scammers can make a call appear to come from a Sigma Voice Solutions Ltd number they don't control. So treat the number as a clue, not proof — judge the call on what the caller actually asks for.
If a Sigma Voice Solutions Ltd number called you and you're unsure, don't share security details, bank information or one-time passcodes, and don't return the call until you've verified it independently. You can block the specific number on any UK smartphone from the recent-calls list, enable free network-level call screening through your own landline provider, and register with the Telephone Preference Service (TPS) to cut legitimate marketing calls. Persistent nuisance calls can be reported to Ofcom, and suspected scams to Action Fraud (or Police Scotland on 101).
Where Sigma Voice Solutions Ltd numbers are based
The area codes where Sigma Voice Solutions Ltd holds the most Ofcom-allocated number blocks. Click an area to see every block and the call patterns reported there.
| Area code | Location | Type | Blocks |
|---|---|---|---|
| 0372 | UK Non-geographic | Nongeographic | 6 |
| 0872 | UK Service rate | Premium | 6 |
| 0800 | UK Freephone | Freephone | 2 |
| 0300 | UK Non-geographic (public sector) | Nongeographic | 1 |
| 0330 | UK Non-geographic (business) | Nongeographic | 1 |
| 0343 | UK Non-geographic | Nongeographic | 1 |
| 0345 | UK Non-geographic | Nongeographic | 1 |
| 0371 | UK Non-geographic | Nongeographic | 1 |
| 0843 | UK Service rate | Premium | 1 |
| 0845 | UK Service rate | Premium | 1 |
| 0871 | UK Service rate | Premium | 1 |
Example Sigma Voice Solutions Ltd number blocks
A sample of individual number blocks allocated to Sigma Voice Solutions Ltd. Each links to a full guide for that block:
FAQs about Sigma Voice Solutions Ltd numbers
Is a Sigma Voice Solutions Ltd number safe to answer?
A Sigma Voice Solutions Ltd number is usually a normal, legitimate UK line — Sigma Voice Solutions Ltd is an Ofcom-licensed communications provider. But because numbers can be resold and caller IDs can be spoofed, you should still judge each call on its content: hang up on anyone who pressures you, asks for security details or one-time passcodes, or wants remote access to your device.
Does a Sigma Voice Solutions Ltd number mean Sigma Voice Solutions Ltd is calling me?
Not necessarily. Sigma Voice Solutions Ltd allocates numbers to its own customers and often sub-allocates ranges to resellers and downstream providers, so the organisation actually calling you may be a completely different business using a Sigma Voice Solutions Ltd-allocated number. Number spoofing can also make an unrelated caller appear to use a Sigma Voice Solutions Ltd number.
How many UK numbers does Sigma Voice Solutions Ltd have?
Sigma Voice Solutions Ltd currently holds 22 Ofcom-allocated number blocks in our copy of the National Telephone Numbering Plan. Each block typically covers 1,000 or 10,000 individual numbers, so the real count of usable numbers is far higher.
How do I block and report a Sigma Voice Solutions Ltd number?
On most UK smartphones, open your recent calls, tap the number and choose 'Block this caller'. UK landline providers (BT, Sky, TalkTalk, Virgin Media) offer free call screening you can switch on in their app. Report nuisance calls to Ofcom, scam calls to Action Fraud, and forward scam texts free to 7726. You can also register with the TPS at tpsonline.org.uk to stop legitimate marketing calls.
