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Range holder

Datazero Ltd

Datazero Ltd is listed by Ofcom as the originally-allocated provider for 559 UK number ranges, mostly landline (01/02). Visitors have checked 13 different numbers from its ranges here. Numbers within these blocks may have since been ported to a different carrier.

Datazero Ltd at a glance

Number ranges
559
Number types
  • Landline (01/02) 524
  • Freephone (080) 21
  • UK-wide (03) 6
  • Service (084/087) 6
  • Personal (070) 2
First allocation
19 October 2010
Latest allocation
21 August 2023
Most blocks in
028 Northern Ireland, 0191 Tyneside / Newcastle / Sunderland / Durham, 020 London

Source: Ofcom numbering data, re-imported weekly. Each range is counted once.

Allocated ranges by year

The year Ofcom allocated each range Datazero Ltd still holds; the busiest year was 2010 (368).

2010368
201112
201255
20151
20181
2019118
20212
20231

What people check and report about numbers on Datazero Ltd ranges

From searches in our lookup form since 13 May 2026 and the verdicts and reports visitors left. A check means someone typed the number in, usually after a missed call.

Checks
20
Different numbers checked
13
Different people checking
13

That makes numbers on Datazero Ltd ranges the 48th most-checked of the 186 range holders people have looked up here.

If a number from Datazero Ltd's ranges called you

No clear pattern in reports for these numbers yet. If a call worried you:

  1. 1

    Call back on a number you trust

    If a caller says they're your bank, HMRC, a courier or a council, hang up and ring the organisation on the number from its website or your statement, never the number that called you. Caller ID can be faked.

  2. 2

    Forward it to 7726

    On a mobile, copy the caller's number from your recent calls and text it to 7726 (it spells SPAM). Scam texts can be forwarded to 7726 as they are. It's free, and your network uses the reports to investigate and block numbers.

    Ofcom: what to do about a scam call ↗

  3. 3

    Stop sales calls

    Register your landline and mobile free with the Telephone Preference Service (0345 070 0707). Legitimate UK marketers must check it; calls should drop within 28 days. It won't stop scammers.

    Telephone Preference Service ↗

  4. 4

    If you lost money or shared details

    Call your bank on the number on your card (or 159 to reach most UK banks safely), then report it to Report Fraud online or on 0300 123 2040. Report Fraud replaced Action Fraud on 4 December 2025 for England, Wales and Northern Ireland; in Scotland call Police Scotland on 101.

    159 (Stop Scams UK) ↗Report Fraud ↗

All Datazero Ltd ranges559, by prefix
PrefixStatus
+44 113892Allocated
+44 114403Allocated
+44 115735Allocated
+44 115789Allocated
+44 116409Allocated
+44 116441Allocated
+44 117254Allocated
+44 118409Allocated
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Per-area pages

Related lookups

Frequently asked questions

What does it mean that Datazero Ltd is the range holder?

Ofcom allocated the blocks listed on this page to Datazero Ltd. A number keeps its digits when its user switches provider, so a number in these blocks may now be on another network; Ofcom doesn't publish who a number is on today.

What kinds of numbers does Datazero Ltd hold?

Of its 559 allocated ranges: 524 landline (01/02), 21 freephone (080), 6 uk-wide (03), 6 service (084/087), 2 personal (070). The oldest dates from 19 October 2010 and the newest from 21 August 2023.

Which area codes does Datazero Ltd have most numbers in?

By allocated blocks: 028 Northern Ireland (13), 0191 Tyneside / Newcastle / Sunderland / Durham (5), 020 London (5), 0161 Manchester (3), 023 Southampton & Portsmouth (3).

Are numbers from Datazero Ltd's ranges reported as scams?

Visitors have checked 13 different numbers from these ranges here since May 2026.

How often is the Datazero Ltd list updated?

Ofcom publishes its numbering data every Wednesday and this page is rebuilt from it weekly, so new Datazero Ltd blocks appear within about a week.