Ofcom number block · snapshot published 14 Oct 2026
0331630 number block: Allocated in Ofcom’s register, not evidence of who called
What does Ofcom list for the 0331630 block?
Ofcom’s snapshot published 14 Oct 2026 lists the 0331630 block (10,000 numbers, 11 digits long) as Allocated, held by BT; its recorded allocation date is 12 Dec 2011, which is provisional. Its status and holder did not change between 19 Aug 2026 and 17 Oct 2026. Check the number below.
BT is the Ofcom-listed range holder for this block. The listing records an allocation only; it is not evidence about the range holder or caller. A number ported to another network still shows its original range holder here.
Did not expect the call? Do not call back; contact the organisation on a number you find yourself.
Source: Ofcom numbering data s3.csv, published 14 Oct 2026, fetched 2026-10-17 20:56 UTC, sha256 d3daf36d · n = 1 block · capacity 10,000 · release fc227d9e · CSV
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Check the number privately
Enter a number below. The lookup runs privately in your browser and returns the Ofcom block status with a callback rule.
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Enter the number that called
Your full number does not leave this page. A lookup downloads only the relevant four-digit prefix-class file.
| Lookup | Method |
|---|---|
| Ofcom block | Private lookup in this browser |
Source: Ofcom numbering data s3.csv, published 14 Oct 2026, fetched 2026-10-17 20:56 UTC, sha256 d3daf36d · n = 1 block · capacity 10,000 · release fc227d9e · CSV
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What should I do after a suspicious call from a 0331630 number?
Did not expect the call? Do not call back; contact the organisation on a number you find yourself.
| Step | Action |
|---|---|
| 1 | Do not call back a number you cannot identify. If it rang once and cut off, that is often a test that your line is live. |
| 2 | If the caller said they were your bank, a company or the police, hang up and phone the organisation on a number you find yourself, or call 159 for your bank. |
| 3 | Forward suspicious text messages to 7726, free of charge. |
| 4 | If you lost money or shared details, contact your bank at once and report to Action Fraud (England, Wales and Northern Ireland) or Police Scotland. |
| 5 | For unwanted marketing calls, report to the ICO and block the number on your phone. |
| 6 | Calls to 01 and 02 numbers are charged at your provider’s standard landline rate (gov.uk/call-charges). |
Source: Ofcom numbering data s3.csv, published 14 Oct 2026, fetched 2026-10-17 20:56 UTC, sha256 d3daf36d · n = 1 block · capacity 10,000 · release fc227d9e · CSV
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Has the 0331630 block changed?
BT is the Ofcom-listed range holder for this block. The listing records an allocation only; it is not evidence about the range holder or caller. A number ported to another network still shows its original range holder here.
Its status and holder did not change between 19 Aug 2026 and 17 Oct 2026.
| Snapshot | Status | Range holder |
|---|---|---|
| 19 Aug 2026 | Allocated | BT |
| 26 Aug 2026 | Allocated | BT |
| 2 Sep 2026 | Allocated | BT |
| 9 Sep 2026 | Allocated | BT |
| 16 Sep 2026 | Allocated | BT |
| 24 Sep 2026 | Allocated | BT |
| 30 Sep 2026 | Allocated | BT |
| 7 Oct 2026 | Allocated | BT |
| 17 Oct 2026 | Allocated | BT |
Source: Ofcom numbering data s3.csv, published 14 Oct 2026, fetched 2026-10-17 20:56 UTC, sha256 d3daf36d · n = 1 block · capacity 10,000 · release fc227d9e · CSV
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What are the neighbouring blocks?
BT is the Ofcom-listed range holder for this block. The listing records an allocation only; it is not evidence about the range holder or caller. A number ported to another network still shows its original range holder here.
The 033163 range is split into ten blocks. The table lists each block’s status and range holder in the snapshot published 14 Oct 2026; neighbouring allocations say nothing about who called.
| Block | Status | Range holder |
|---|---|---|
| 0331630 (this block) | Allocated | BT |
| 0331631 | Allocated | BT |
| 0331632 | Allocated | BT |
| 0331633 | Allocated | BT |
| 0331634 | Allocated | BT |
| 0331635 | Allocated | BT |
| 0331636 | Allocated | BT |
| 0331637 | Allocated | BT |
| 0331638 | Allocated | BT |
| 0331639 | Allocated | BT |
Source: Ofcom numbering data s3.csv, published 14 Oct 2026, fetched 2026-10-17 20:56 UTC, sha256 d3daf36d · n = 1 block · capacity 10,000 · release fc227d9e · CSV
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Where does the 0331630 block belong?
The 0331630 block sits in the UK-wide 03 ranges; this prefix is not one of the twelve family pages.
| Page | What it covers |
|---|---|
| UK number families | the UK-wide 03 ranges; this prefix is not one of the twelve family pages |
Source: Ofcom numbering data s3.csv, published 14 Oct 2026, fetched 2026-10-17 20:56 UTC, sha256 d3daf36d · n = 1 block · capacity 10,000 · release fc227d9e · CSV
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Where do these numbers come from, and how do I cite this page?
Rangecheck, “0331630 number block — Ofcom numbering snapshot published 14 Oct 2026”, release fc227d9e, https://rangecheck.co.uk/ranges/0331630/, retrieved 24 Sep 2026. Contains Ofcom copyright material: numbering data (ofcom.org.uk).
How to cite · Contains Ofcom copyright material
| Field | Value |
|---|---|
| Release | fc227d9e |
| Source published | 14 Oct 2026 |
| Source fetched | 2026-10-17 20:56 UTC |
| Source file | s3.csv |
Source: Ofcom numbering data s3.csv, published 14 Oct 2026, fetched 2026-10-17 20:56 UTC, sha256 d3daf36d · n = 1 block · capacity 10,000 · release fc227d9e · CSV