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Range holder

Ziron Limited

Ziron Limited is listed by Ofcom as the originally-allocated provider for 657 UK number ranges, mostly landline (01/02). Visitors have checked 116 different numbers from its ranges here. Numbers within these blocks may have since been ported to a different carrier.

Ziron Limited at a glance

Number ranges
657
Number types
  • Landline (01/02) 651
  • UK-wide (03) 2
  • Freephone (080) 2
  • Mobile (07) 1
  • Other 1
First allocation
20 June 2012
Latest allocation
24 November 2021
Most blocks in
028 Northern Ireland, 020 London, 01484 Huddersfield

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

Allocated ranges by year

The year Ofcom allocated each range Ziron Limited still holds; the busiest year was 2012 (625).

2012625
20133
20142
201610
20181
20194
202112

What people check and report about numbers on Ziron Limited 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
134
Different numbers checked
116
Different people checking
124

That makes numbers on Ziron Limited ranges the 23rd most-checked of the 186 range holders people have looked up here.

By day of the week

Busiest: Tuesday (25% of checks)

MoTuWeThFrSaSu

By hour (UK time)

Busiest: 3pm–4pm; the three busiest hours hold 37% of checks

0:006:0012:0018:0023:00

Caller verdicts on numbers on Ziron Limited ranges: 2

2 scam. Too few to show shares yet.

Most-reported and most-checked numbers on Ziron Limited ranges

NumberVerdictsReportsPeople checking
07488 8227201 scam—2
07488 8108111 scam—1

If a number from Ziron Limited'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 Ziron Limited ranges657, by prefix
PrefixStatus
+44 113856Allocated
+44 114395Allocated
+44 115200Allocated
+44 116397Allocated
+44 117242Allocated
+44 118436Allocated
+44 1200312Allocated
+44 1202836Allocated
+44 1204319Allocated
+44 1204966Allocated
+44 1205219Allocated
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+44 1208215Allocated
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Per-area pages

Related lookups

Frequently asked questions

What does it mean that Ziron Limited is the range holder?

Ofcom allocated the blocks listed on this page to Ziron Limited. 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 Ziron Limited hold?

Of its 657 allocated ranges: 651 landline (01/02), 2 uk-wide (03), 2 freephone (080), 1 mobile (07), 1 other. The oldest dates from 20 June 2012 and the newest from 24 November 2021.

Which area codes does Ziron Limited have most numbers in?

By allocated blocks: 028 Northern Ireland (34), 020 London (4), 01484 Huddersfield (3), 0191 Tyneside / Newcastle / Sunderland / Durham (3), 01204 Bolton (2).

Are numbers from Ziron Limited's ranges reported as scams?

Visitors have checked 116 different numbers from these ranges here since May 2026. 2 verdicts have been left on them: 2 scam, 0 nuisance, 0 safe. A scam verdict is about the caller using the number, not Ziron Limited.

How often is the Ziron Limited list updated?

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