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Range holder

IV Response Limited

IV Response Limited is listed by Ofcom as the originally-allocated provider for 178 UK number ranges, mostly landline (01/02). Numbers within these blocks may have since been ported to a different carrier.

IV Response Limited at a glance

Number ranges
178
Number types
  • Landline (01/02) 89
  • Premium rate (09) 47
  • Service (084/087) 32
  • UK-wide (03) 5
  • Freephone (080) 4
  • Mobile (07) 1
First allocation
9 March 2002
Latest allocation
21 August 2014
Most blocks in
028 Northern Ireland, 01866 Kilchrenan, 020 London

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

Allocated ranges by year

The year Ofcom allocated each range IV Response Limited still holds; the busiest year was 2005 (94).

200228
200310
200413
200594
200722
20087
20112
20141

If a number from IV Response 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 IV Response Limited ranges178, by prefix
PrefixStatus
+44 113351Allocated
+44 114343Allocated
+44 116329Allocated
+44 117371Allocated
+44 118333Allocated
+44 120525Allocated
+44 121261Allocated
+44 122655Allocated
+44 122833Allocated
+44 122969Allocated
+44 123331Allocated
+44 123466Allocated
+44 124292Allocated
+44 124342Allocated
+44 124477Allocated
+44 124575Allocated
+44 1253635Allocated
+44 125566Allocated
+44 126880Allocated
+44 127070Allocated
+44 128060Allocated
+44 129069Allocated
+44 130036Allocated
+44 130333Allocated
+44 131318Allocated
+44 132360Allocated
+44 133073Allocated
+44 133341Allocated
+44 135554Allocated
+44 136061Allocated
+44 140090Allocated
+44 140424Allocated
+44 140898Allocated
+44 141415Allocated
+44 143030Allocated
+44 144272Allocated
+44 144443Allocated
+44 150171Allocated
+44 150551Allocated
+44 151535Allocated
+44 152261Allocated
+44 155095Allocated
+44 155565Allocated
+44 156061Allocated
+44 158078Allocated
+44 160085Allocated
+44 160696Allocated
+44 161664Allocated
+44 166636Allocated
+44 170777Allocated
+44 172121Allocated
+44 177773Allocated
+44 178869Allocated
+44 180380Allocated
+44 180833Allocated
+44 184142Allocated
+44 184465Allocated
+44 184595Allocated
+44 18668Allocated
+44 186691Allocated
+44 187044Allocated
+44 187121Allocated
+44 188022Allocated
+44 188846Allocated
+44 190080Allocated
+44 191450Allocated
+44 199596Allocated
+44 203323Allocated
+44 207130Allocated
+44 282182Allocated
+44 282528Allocated
+44 282828Allocated
+44 283038Allocated
+44 284050Allocated
+44 284445Allocated
+44 286686Allocated
+44 286767Allocated
+44 286888Allocated
+44 287070Allocated
+44 287171Allocated
+44 287787Allocated
+44 288080Allocated
+44 288181Allocated
+44 288282Allocated
+44 288585Allocated
+44 288989Allocated
+44 289006Allocated
+44 289289Allocated
+44 292007Allocated
+44 333133Allocated
+44 345315Allocated
+44 345331Allocated
+44 370005Allocated
+44 370335Allocated
+44 79789Allocated
+44 8008780Allocated
+44 8008830Allocated
+44 8008832Allocated
+44 8008838Allocated
+44 844214Allocated
+44 844302Allocated
+44 844303Allocated
+44 844323Allocated
+44 844430Allocated
+44 844555Allocated
+44 844605Allocated
+44 844640Allocated
+44 844671Allocated
+44 844673Allocated
+44 844780Allocated
+44 844799Allocated
+44 844889Allocated
+44 844909Allocated
+44 844968Allocated
+44 845315Allocated
+44 845331Allocated
+44 845510Allocated
+44 845532Allocated
+44 870005Allocated
+44 870335Allocated
+44 871331Allocated
+44 871606Allocated
+44 871686Allocated
+44 871771Allocated
+44 871881Allocated
+44 871907Allocated
+44 871990Allocated
+44 872029Allocated
+44 872035Allocated
+44 872038Allocated
+44 872046Allocated
+44 901429Allocated
+44 901455Allocated
+44 901825Allocated
+44 904023Allocated
+44 904032Allocated
+44 904124Allocated
+44 904497Allocated
+44 905447Allocated
+44 905529Allocated
+44 905538Allocated
+44 905558Allocated
+44 905656Allocated
+44 905726Allocated
+44 905851Allocated
+44 905996Allocated
+44 906594Allocated
+44 907147Allocated
+44 907151Allocated
+44 907307Allocated
+44 908108Allocated
+44 908599Allocated
+44 909057Allocated
+44 909069Allocated
+44 909129Allocated
+44 909519Allocated
+44 909548Allocated
+44 909705Allocated
+44 909814Allocated
+44 911000Allocated
+44 911148Allocated
+44 911157Allocated
+44 911167Allocated
+44 911176Allocated
+44 911180Allocated
+44 911225Allocated
+44 911235Allocated
+44 911245Allocated
+44 911257Allocated
+44 911552Allocated
+44 913015Allocated
+44 913018Allocated
+44 983141Allocated
+44 983142Allocated
+44 983145Allocated
+44 983146Allocated
+44 983147Allocated
+44 983148Allocated

Per-area pages

Related lookups

Frequently asked questions

What does it mean that IV Response Limited is the range holder?

Ofcom allocated the blocks listed on this page to IV Response 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 IV Response Limited hold?

Of its 178 allocated ranges: 89 landline (01/02), 47 premium rate (09), 32 service (084/087), 5 uk-wide (03), 4 freephone (080), 1 mobile (07). The oldest dates from 9 March 2002 and the newest from 21 August 2014.

Which area codes does IV Response Limited have most numbers in?

By allocated blocks: 028 Northern Ireland (19), 01866 Kilchrenan (2), 020 London (2), 0113 Leeds (1), 0114 Sheffield (1).

How often is the IV Response Limited list updated?

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