Skip to main content
WhoCalledLookup
Look up a number

Range holder

Core Telecom Limited

Core Telecom Limited is listed by Ofcom as the originally-allocated provider for 490 UK number ranges, mostly landline (01/02). Visitors have checked 426 different numbers from its ranges here. Numbers within these blocks may have since been ported to a different carrier.

Core Telecom Limited at a glance

Number ranges
490
Number types
  • Landline (01/02) 218
  • Premium rate (09) 97
  • UK-wide (03) 65
  • Service (084/087) 62
  • Personal (070) 30
  • Freephone (080) 12
  • Mobile (07) 4
  • Pager (076) 2
First allocation
1 March 2006
Latest allocation
11 August 2026
Most blocks in
0118 Reading, 028 Northern Ireland, 020 London

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

Allocated ranges by year

The year Ofcom allocated each range Core Telecom Limited still holds; the busiest year was 2010 (205).

200632
200770
200814
200911
2010205
201115
201267
20132
201460
20164
20172
20191
20261

What people check and report about numbers on Core Telecom 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
498
Different numbers checked
426
Different people checking
461

That makes numbers on Core Telecom Limited ranges the 10th most-checked of the 186 range holders people have looked up here.

By day of the week

Busiest: Monday (22% of checks)

MoTuWeThFrSaSu

By hour (UK time)

Busiest: 1pm–2pm; the three busiest hours hold 39% of checks

0:006:0012:0018:0023:00

Caller verdicts on numbers on Core Telecom Limited ranges: 11

Scam 64% (7) · Nuisance 18% (2) · Safe 18% (2)

Latest comments

Most-reported and most-checked numbers on Core Telecom Limited ranges

NumberVerdictsReportsPeople checking
0161 732 12591 nuisance—3
0141 310 28721 scam—2
01483 3712631 scam—2
029 2200 15731 scam—2
0113 870 83611 scam—1

If a number from Core Telecom Limited's ranges called you

Most verdicts on these numbers say scam, so treat unexpected calls as possible scams.

  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

    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 Core Telecom Limited ranges490, by prefix
PrefixStatus
+44 113870Allocated
+44 114378Allocated
+44 115731Allocated
+44 116385Allocated
+44 117261Allocated
+44 118417Allocated
+44 118463Allocated
+44 118575Allocated
+44 118577Allocated
+44 118754Allocated
+44 118776Allocated
+44 118995Allocated
+44 1202936Allocated
+44 1204276Allocated
+44 1206653Allocated
+44 121529Allocated
+44 1224902Allocated
+44 1225951Allocated
+44 1227684Allocated
+44 1228903Allocated
+44 1233274Allocated
+44 1234947Allocated
+44 1235379Allocated
+44 1242343Allocated
+44 1243914Allocated
+44 1244553Allocated
+44 1246798Allocated
+44 1248527Allocated
+44 1249568Allocated
+44 1252491Allocated
+44 1254458Allocated
+44 1256206Allocated
+44 1257783Allocated
+44 1264534Allocated
+44 1270343Allocated
+44 1271553Allocated
+44 1275267Allocated
+44 1277543Allocated
+44 1279931Allocated
+44 1280443Allocated
+44 1282920Allocated
+44 1283312Allocated
+44 1284605Allocated
+44 1285346Allocated
+44 1289753Allocated
+44 1291764Allocated
+44 1292843Allocated
+44 1295560Allocated
+44 1296859Allocated
+44 1298420Allocated
+44 1302951Allocated
+44 1303659Allocated
+44 1304753Allocated
+44 1305550Allocated
+44 1306271Allocated
+44 131218Allocated
+44 1322781Allocated
+44 1323343Allocated
+44 1325581Allocated
+44 1326738Allocated
+44 1327583Allocated
+44 1334752Allocated
+44 1344515Allocated
+44 1353463Allocated
+44 1367603Allocated
+44 1372603Allocated
+44 1382681Allocated
+44 1383258Allocated
+44 1384934Allocated
+44 1386302Allocated
+44 1389483Allocated
+44 1392958Allocated
+44 1394789Allocated
+44 1403594Allocated
+44 141310Allocated
+44 1422521Allocated
+44 1424573Allocated
+44 1429703Allocated
+44 1432618Allocated
+44 1438531Allocated
+44 1443532Allocated
+44 1444638Allocated
+44 1446337Allocated
+44 1449505Allocated
+44 1450532Allocated
+44 1452647Allocated
+44 1458745Allocated
+44 1461523Allocated
+44 1462380Allocated
+44 1463543Allocated
+44 1472431Allocated
+44 1473568Allocated
+44 1474617Allocated
+44 1477762Allocated
+44 1480742Allocated
+44 1482963Allocated
+44 1483371Allocated
+44 1485762Allocated
+44 1491223Allocated
+44 1493261Allocated
+44 1494640Allocated
+44 1502368Allocated
+44 1509356Allocated
+44 151679Allocated
+44 1522285Allocated
+44 1525583Allocated
+44 1527340Allocated
+44 1536643Allocated
+44 1539261Allocated
+44 1543542Allocated
+44 1553367Allocated
+44 1554521Allocated
+44 1562279Allocated
+44 1563472Allocated
+44 1565328Allocated
+44 1576483Allocated
+44 1600468Allocated
+44 1603523Allocated
+44 1604559Allocated
+44 1606249Allocated
+44 1608481Allocated
+44 161732Allocated
+44 161949Allocated
+44 1622916Allocated
+44 1623331Allocated
+44 1625318Allocated
+44 1628941Allocated
+44 1635782Allocated
+44 1636338Allocated
+44 1637692Allocated
+44 1638468Allocated
+44 1656489Allocated
+44 1670603Allocated
+44 1672483Allocated
+44 1673551Allocated
+44 1675582Allocated
+44 1689476Allocated
+44 1698620Allocated
+44 1704608Allocated
+44 1706490Allocated
+44 1707562Allocated
+44 1708903Allocated
+44 1709611Allocated
+44 1720615Allocated
+44 1722663Allocated
+44 1723647Allocated
+44 1726419Allocated
+44 1727581Allocated
+44 1733691Allocated
+44 1736663Allocated
+44 1737459Allocated
+44 1738257Allocated
+44 1743618Allocated
+44 1747592Allocated
+44 1748441Allocated
+44 1753326Allocated
+44 1754452Allocated
+44 1756525Allocated
+44 1757803Allocated
+44 1763742Allocated
+44 1765801Allocated
+44 1767821Allocated
+44 1770592Allocated
+44 1772871Allocated
+44 1777551Allocated
+44 1780651Allocated
+44 1782910Allocated
+44 1784653Allocated
+44 1785531Allocated
+44 1788491Allocated
+44 1789582Allocated
+44 1792901Allocated
+44 1799784Allocated
+44 1803452Allocated
+44 1827756Allocated
+44 1841703Allocated
+44 1842635Allocated
+44 1844851Allocated
+44 1858772Allocated
+44 1869902Allocated
+44 1883574Allocated
+44 1892253Allocated
+44 1895733Allocated
+44 1896472Allocated
+44 1900353Allocated
+44 1902253Allocated
+44 1903374Allocated
+44 1904531Allocated
+44 1905906Allocated
+44 191656Allocated
+44 1922264Allocated
+44 1923557Allocated
+44 1924681Allocated
+44 1925503Allocated
+44 1926761Allocated
+44 1928609Allocated
+44 1932951Allocated
+44 1933592Allocated
+44 1934219Allocated
+44 1942467Allocated
+44 1947452Allocated
+44 1952307Allocated
+44 1962439Allocated
+44 1978459Allocated
+44 1983607Allocated
+44 1987203Allocated
+44 1992242Allocated
+44 203504Allocated
+44 203944Allocated
+44 204555Allocated
+44 238167Allocated
+44 247772Allocated
+44 283047Allocated
+44 283725Allocated
+44 284329Allocated
+44 287158Allocated
+44 289549Allocated
+44 292200Allocated
+44 300102Allocated
+44 300126Allocated
+44 330111Allocated
+44 333355Allocated
+44 333920Allocated
+44 343249Allocated
+44 343253Allocated
+44 343255Allocated
+44 343257Allocated
+44 343258Allocated
+44 343259Allocated
+44 343260Allocated
+44 343261Allocated
+44 343262Allocated
+44 343265Allocated
+44 343266Allocated
+44 343267Allocated
+44 343268Allocated
+44 343269Allocated
+44 343270Allocated
+44 343271Allocated
+44 343272Allocated
+44 343273Allocated
+44 343274Allocated
+44 343275Allocated
+44 343276Allocated
+44 343277Allocated
+44 343278Allocated
+44 344272Allocated
+44 344273Allocated
+44 344288Allocated
+44 344310Allocated
+44 344504Allocated
+44 344682Allocated
+44 344686Allocated
+44 344739Allocated
+44 345163Allocated
+44 345619Allocated
+44 370186Allocated
+44 370218Allocated
+44 371346Allocated
+44 371453Allocated
+44 371454Allocated
+44 371489Allocated
+44 371526Allocated
+44 371544Allocated
+44 371623Allocated
+44 371649Allocated
+44 371683Allocated
+44 371705Allocated
+44 371823Allocated
+44 371836Allocated
+44 371842Allocated
+44 371864Allocated
+44 371923Allocated
+44 371939Allocated
+44 371951Allocated
+44 371953Allocated
+44 372290Allocated
+44 372291Allocated
+44 372292Allocated
+44 372293Allocated
+44 372294Allocated
+44 372295Allocated
+44 372297Allocated
+44 70264Allocated
+44 70387Allocated
+44 70388Allocated
+44 70389Allocated
+44 70422Allocated
+44 70561Allocated
+44 70563Allocated
+44 70565Allocated
+44 70567Allocated
+44 70569Allocated
+44 70571Allocated
+44 70573Allocated
+44 70579Allocated
+44 70582Allocated
+44 70584Allocated
+44 70586Allocated
+44 70589Allocated
+44 70621Allocated
+44 70623Allocated
+44 70627Allocated
+44 70628Allocated
+44 70629Allocated
+44 70630Allocated
+44 70631Allocated
+44 70632Allocated
+44 70633Allocated
+44 70634Allocated
+44 70635Allocated
+44 70636Allocated
+44 70637Allocated
+44 74172Allocated
+44 74179Allocated
+44 74418Allocated
+44 75597Allocated
+44 76400Allocated
+44 76778Allocated
+44 8000029Allocated
+44 8000332Allocated
+44 8001503Allocated
+44 8002289Allocated
+44 8002707Allocated
+44 8006906Allocated
+44 8006911Allocated
+44 8007734Allocated
+44 8007740Allocated
+44 808185Allocated
+44 808231Allocated
+44 808291Allocated
+44 843249Allocated
+44 843253Allocated
+44 843255Allocated
+44 843257Allocated
+44 843258Allocated
+44 843259Allocated
+44 843260Allocated
+44 843261Allocated
+44 843262Allocated
+44 843265Allocated
+44 843266Allocated
+44 843267Allocated
+44 843268Allocated
+44 843269Allocated
+44 843270Allocated
+44 843271Allocated
+44 843272Allocated
+44 843273Allocated
+44 843274Allocated
+44 843275Allocated
+44 843276Allocated
+44 843277Allocated
+44 843278Allocated
+44 843544Allocated
+44 844272Allocated
+44 844273Allocated
+44 844288Allocated
+44 844310Allocated
+44 844504Allocated
+44 844682Allocated
+44 844686Allocated
+44 844739Allocated
+44 845163Allocated
+44 845619Allocated
+44 870186Allocated
+44 870218Allocated
+44 871346Allocated
+44 871453Allocated
+44 871454Allocated
+44 871489Allocated
+44 871526Allocated
+44 871544Allocated
+44 871623Allocated
+44 871649Allocated
+44 871683Allocated
+44 871705Allocated
+44 871823Allocated
+44 871836Allocated
+44 871842Allocated
+44 871864Allocated
+44 871923Allocated
+44 871939Allocated
+44 871951Allocated
+44 871953Allocated
+44 872290Allocated
+44 872291Allocated
+44 872292Allocated
+44 872293Allocated
+44 872294Allocated
+44 872295Allocated
+44 872297Allocated
+44 872453Allocated
+44 900170Allocated
+44 900320Allocated
+44 900582Allocated
+44 900593Allocated
+44 900649Allocated
+44 900659Allocated
+44 900781Allocated
+44 900783Allocated
+44 901449Allocated
+44 901450Allocated
+44 901664Allocated
+44 901692Allocated
+44 901835Allocated
+44 903447Allocated
+44 903448Allocated
+44 903449Allocated
+44 903450Allocated
+44 903451Allocated
+44 903452Allocated
+44 904276Allocated
+44 904365Allocated
+44 904495Allocated
+44 904518Allocated
+44 904569Allocated
+44 904586Allocated
+44 904639Allocated
+44 904643Allocated
+44 904657Allocated
+44 904659Allocated
+44 904714Allocated
+44 904724Allocated
+44 904758Allocated
+44 904775Allocated
+44 904776Allocated
+44 904793Allocated
+44 904813Allocated
+44 904815Allocated
+44 904835Allocated
+44 904902Allocated
+44 904911Allocated
+44 904912Allocated
+44 904922Allocated
+44 904932Allocated
+44 904973Allocated
+44 905854Allocated
+44 907316Allocated
+44 907346Allocated
+44 907349Allocated
+44 907375Allocated
+44 907453Allocated
+44 907459Allocated
+44 907463Allocated
+44 907471Allocated
+44 907473Allocated
+44 907546Allocated
+44 908316Allocated
+44 908321Allocated
+44 908431Allocated
+44 908530Allocated
+44 908793Allocated
+44 908921Allocated
+44 909008Allocated
+44 911084Allocated
+44 911732Allocated
+44 911763Allocated
+44 911819Allocated
+44 982005Allocated
+44 982024Allocated
+44 982036Allocated
+44 982039Allocated
+44 982046Allocated
+44 982049Allocated
+44 982053Allocated
+44 982059Allocated
+44 982076Allocated
+44 982146Allocated
+44 982159Allocated
+44 982164Allocated
+44 982174Allocated
+44 982207Allocated
+44 982427Allocated
+44 982485Allocated
+44 982516Allocated
+44 982523Allocated
+44 982603Allocated
+44 982607Allocated
+44 982612Allocated
+44 982614Allocated
+44 982624Allocated
+44 982628Allocated
+44 982630Allocated
+44 982782Allocated
+44 982810Allocated
+44 982830Allocated
+44 982884Allocated
+44 982982Allocated
+44 982984Allocated

Per-area pages

Related lookups

Frequently asked questions

What does it mean that Core Telecom Limited is the range holder?

Ofcom allocated the blocks listed on this page to Core Telecom 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 Core Telecom Limited hold?

Of its 490 allocated ranges: 218 landline (01/02), 97 premium rate (09), 65 uk-wide (03), 62 service (084/087), 30 personal (070), 12 freephone (080), 4 mobile (07), 2 pager (076). The oldest dates from 1 March 2006 and the newest from 11 August 2026.

Which area codes does Core Telecom Limited have most numbers in?

By allocated blocks: 0118 Reading (7), 028 Northern Ireland (5), 020 London (3), 0161 Manchester (2), 0113 Leeds (1).

Are numbers from Core Telecom Limited's ranges reported as scams?

Visitors have checked 426 different numbers from these ranges here since May 2026. 11 verdicts have been left on them: 7 scam, 2 nuisance, 2 safe. A scam verdict is about the caller using the number, not Core Telecom Limited.

How often is the Core Telecom Limited list updated?

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