Range holder · Tyneside / Newcastle / Sunderland / Durham
Datazero Ltd in Tyneside / Newcastle / Sunderland / Durham
0191 numbering ranges allocated by Ofcom
About Datazero Ltd’s Tyneside / Newcastle / Sunderland / Durham allocation
When Datazero Ltd is the range holder for +44 191 it means Ofcom recorded Datazero Ltd as the provider entitled to issue numbers from these blocks when they were first allocated under the UK National Telephone Numbering Plan. 5 Tyneside / Newcastle / Sunderland / Durham-facing blocks sit against Datazero Ltd in the current Ofcom snapshot, each of which can carry up to ten thousand individual digits available for assignment to end customers.
Tyneside / Newcastle / Sunderland / Durham’s North East telecoms estate is shaped by Tyneside / Newcastle / Sunderland / Durham's catchment of roughly 880,000 residents: a dense urban exchange typically hosts allocations from several national operators in parallel, which is why you see Datazero Ltd’s blocks alongside other range holders on the same 0191 code. Local switching capacity, historic Openreach exchange footprints, and Datazero Ltd’s wholesale routing arrangements all influence which blocks land in Tyneside / Newcastle / Sunderland / Durham rather than elsewhere on the national plan.
Treat this allocation as a starting point, not a verdict on any specific caller. UK numbers are portable, so the current carrier on a given 0191 digit string may differ from the range holder shown — read Range Holder vs current provider for the distinction, and How Ofcom allocates UK phone numbers for the wider context behind the table below.
Datazero Ltd on 0191: by the numbers
- Tyneside / Newcastle / Sunderland / Durham blocks
- 5
- In active service
- 100%
- Share of 0191
- 1%
- Holders on code
- 137
Of the 5 blocks Datazero Ltd runs on the 0191 code, 5 (100%) are marked as actively allocated in the current Ofcom snapshot.
By number family these blocks are 100% geographic (01 / 02) — a profile that tells you what kind of caller a Tyneside / Newcastle / Sunderland / Durham Datazero Ltd number is likely to be before you even dial it back.
Datazero Ltd runs 5 of the 1,000 allocated blocks on the 0191 dialling code — roughly 1% of Tyneside / Newcastle / Sunderland / Durham’s mapped allocation, shared with 136 other range holders. Most are listed as "Allocated", which means the block is currently in active service with a communications provider.
Allocated ranges
Datazero Ltd blocks on the 0191 (Tyneside / Newcastle / Sunderland / Durham) dialling code.
| Prefix | Status |
|---|---|
| +44 191356 | Allocated |
| +44 191651 | Allocated |
| +44 191675 | Allocated |
| +44 191681 | Allocated |
| +44 191900 | Allocated |
Quick links
- Datazero LtdAll Datazero Ltd ranges
- 0191 Tyneside / Newcastle / Sunderland / DurhamAll numbers on 0191
- Tyneside / Newcastle / Sunderland / DurhamMore on Tyneside / Newcastle / Sunderland / Durham
- (AQ) LIMITEDAlso allocated on 0191
- 24 Seven Cloud Communications LtdAlso allocated on 0191
- 24 Seven Communications LimitedAlso allocated on 0191
- Datazero Ltd in Northern IrelandDatazero Ltd ranges in Northern Ireland
- Datazero Ltd in LondonDatazero Ltd ranges in London
- Datazero Ltd in ManchesterDatazero Ltd ranges in Manchester
- All range holdersEvery Ofcom-listed provider
- Lookup any UK numberFree reverse phone lookup
FAQs about Datazero Ltd on 0191
Why does Datazero Ltd appear on Tyneside / Newcastle / Sunderland / Durham (0191) numbers?
Datazero Ltd is listed in Ofcom's UK Numbering Data feed as the originally-allocated range holder for 5 number blocks on the 0191 dialling code, which covers Tyneside / Newcastle / Sunderland / Durham. That allocation pre-dates any individual customer — it simply means Ofcom recognised Datazero Ltd as the wholesale operator entitled to issue those digits when the block was first allocated.
Are calls from a Tyneside / Newcastle / Sunderland / Durham Datazero Ltd-allocated number safe?
An Ofcom allocation only tells you which provider the block was issued to; it is not a safety verdict. UK numbers can be ported between networks, and any UK area code can be spoofed by an overseas caller. Paste the specific 0191 number into the lookup above to combine the Datazero Ltd range data with the scam, nuisance and safe verdicts other callers have left on that exact number.
Has Datazero Ltd's 0191 block been updated recently?
Yes — the table above is sourced from Ofcom's public UK Numbering Data feed, which we re-ingest every week (typically Wednesday). Any block that has been re-assigned, withdrawn or marked free will appear with its new status on the next refresh. Numbers within an allocated block can still be ported to another carrier in between Ofcom updates; see our range-holder-vs-current-provider guide for the distinction.