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Range holder

BT

BT is listed by Ofcom as the originally-allocated provider for 20,749 UK number ranges, mostly landline (01/02). Visitors have checked 1,940 different numbers from its ranges here. Numbers within these blocks may have since been ported to a different carrier.

BT at a glance

Number ranges
20,749 (17,634 allocated)
Number types
  • Landline (01/02) 16,558
  • UK-wide (03) 428
  • Premium rate (09) 394
  • Freephone (080) 95
  • Service (084/087) 91
  • Corporate / VoIP (05) 64
  • Other 4
First allocation
1 January 1994
Latest allocation
24 July 2026
Most blocks in
020 London, 028 Northern Ireland, 0161 Manchester

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

Allocated ranges by year

The year Ofcom allocated each range BT still holds; the busiest year was 1994 (8,163).

19948,163
1995399
1996218
1997295
1998222
19991,533
2000103
200139
200262
200326
2004110
2005269
200697
2007340
200848
2009474
201070
2011148
20121,012
20132,050
2014160
201598
201677
201760
2018123
2019294
2020334
2021228
2022145
2023143
2024163
202567
20267

What people check and report about numbers on BT 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
2,236
Different numbers checked
1,940
Different people checking
2,010

That makes numbers on BT ranges the 5th most-checked of the 186 range holders people have looked up here.

By day of the week

Busiest: Tuesday (20% of checks)

MoTuWeThFrSaSu

By hour (UK time)

Busiest: 2pm–3pm; the three busiest hours hold 32% of checks

0:006:0012:0018:0023:00

Caller verdicts on numbers on BT ranges: 38

Scam 68% (26) · Nuisance 11% (4) · Safe 21% (8)

Community reports: bank impersonation (1), HMRC and tax scams (1), tech-support scams (1).

Latest comments

  • “Scam/fraud”

    Scam · 020 3345 7687 · 29 Sept 2026

  • “They said they were Royal London Insurance,when I phoned back it was a recording of r”

    Scam · 0161 573 1468 · 29 Sept 2026

  • “Wanted to talk to the business owner about online presence. Foreign accent so was suspicious. Hung up and blocked.”

    Scam · 01501 747219 · 9 Sept 2026

Most-reported and most-checked numbers on BT ranges

NumberVerdictsReportsPeople checking
0131 285 40152 scam—2
0141 467 39491 scam11
0161 200 12341 scam—32
01420 4841151 nuisance—3
020 3340 65601 safe—3

If a number from BT's ranges called you

Reports here are mostly about bank impersonation and HMRC and tax scams, so treat unexpected calls as possible scams.

  1. 1

    Bank calls: use 159

    Hang up and dial 159 from a phone the caller hasn't just used. It connects you to most UK banks' real fraud lines. Your bank will never ask you to move money to a 'safe account'.

    159 (Stop Scams UK) ↗

  2. 2

    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.

  3. 3

    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 ↗

  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 ↗

BT ranges by Ofcom status
StatusRangesWhat it means
Allocated17,634the block is currently in active service with a communications provider
Allocated(Closed Range)3,115the block is currently in active service with a communications provider
All BT rangesfirst 1,000 of 20,749, by prefix
PrefixStatus
+44 113200Allocated
+44 113201Allocated
+44 113202Allocated
+44 113203Allocated
+44 113204Allocated
+44 113205Allocated
+44 113214Allocated
+44 113215Allocated
+44 113218Allocated
+44 113220Allocated
+44 113224Allocated
+44 113230Allocated
+44 113231Allocated
+44 113232Allocated
+44 113233Allocated
+44 113234Allocated
+44 113235Allocated
+44 113236Allocated
+44 113237Allocated
+44 113238Allocated
+44 113239Allocated
+44 113240Allocated
+44 113241Allocated
+44 113242Allocated
+44 113243Allocated
+44 113244Allocated
+44 113245Allocated
+44 113246Allocated
+44 113247Allocated
+44 113248Allocated
+44 113249Allocated
+44 113250Allocated
+44 113252Allocated
+44 113253Allocated
+44 113255Allocated
+44 113256Allocated
+44 113257Allocated
+44 113258Allocated
+44 113259Allocated
+44 113260Allocated
+44 113261Allocated
+44 113262Allocated
+44 113263Allocated
+44 113264Allocated
+44 113265Allocated
+44 113266Allocated
+44 113267Allocated
+44 113268Allocated
+44 113269Allocated
+44 113270Allocated
+44 113271Allocated
+44 113272Allocated
+44 113273Allocated
+44 113274Allocated
+44 113275Allocated
+44 113276Allocated
+44 113277Allocated
+44 113278Allocated
+44 113279Allocated
+44 113281Allocated
+44 113282Allocated
+44 113284Allocated
+44 113285Allocated
+44 113286Allocated
+44 113287Allocated
+44 113288Allocated
+44 113289Allocated
+44 113290Allocated
+44 113291Allocated
+44 113296Allocated
+44 113306Allocated
+44 113307Allocated
+44 113337Allocated
+44 113349Allocated
+44 113380Allocated
+44 113381Allocated
+44 113382Allocated
+44 113385Allocated
+44 113386Allocated
+44 113387Allocated
+44 113388Allocated
+44 113389Allocated
+44 113390Allocated
+44 113391Allocated
+44 113393Allocated
+44 113394Allocated
+44 113395Allocated
+44 113397Allocated
+44 113426Allocated
+44 113452Allocated
+44 113457Allocated
+44 113458Allocated
+44 113513Allocated
+44 113529Allocated
+44 113531Allocated
+44 113548Allocated
+44 113551Allocated
+44 113807Allocated
+44 113816Allocated
+44 113819Allocated
+44 113821Allocated
+44 113823Allocated
+44 113824Allocated
+44 113825Allocated
+44 113826Allocated
+44 114203Allocated
+44 114228Allocated
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+44 114322Allocated
+44 114349Allocated
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+44 115110Allocated
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+44 115646Allocated
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+44 115929Allocated
+44 115930Allocated
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+44 115932Allocated
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+44 115934Allocated
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+44 115962Allocated
+44 115963Allocated
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+44 115978Allocated
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+44 115980Allocated
+44 115981Allocated
+44 115982Allocated
+44 115983Allocated
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+44 115985Allocated
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+44 115992Allocated
+44 115995Allocated
+44 116000Allocated
+44 116111Allocated
+44 116200Allocated
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+44 116296Allocated
+44 116482Allocated
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+44 117300Allocated
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+44 117316Allocated
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+44 117349Allocated
+44 117363Allocated
+44 117376Allocated
+44 117403Allocated
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+44 117416Allocated
+44 117452Allocated
+44 117462Allocated
+44 117906Allocated
+44 117910Allocated
+44 117912Allocated
+44 117913Allocated
+44 117916Allocated
+44 117917Allocated
+44 117920Allocated
+44 117921Allocated
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+44 117924Allocated
+44 117925Allocated
+44 117926Allocated
+44 117927Allocated
+44 117928Allocated
+44 117929Allocated
+44 117930Allocated
+44 117931Allocated
+44 117932Allocated
+44 117933Allocated
+44 117934Allocated
+44 117935Allocated
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+44 117938Allocated
+44 117941Allocated
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+44 117950Allocated
+44 117951Allocated
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+44 117978Allocated
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+44 117986Allocated
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+44 118005Allocated
+44 118060Allocated
+44 118110Allocated
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+44 118300Allocated
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+44 118500Allocated
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+44 118555Allocated
+44 118606Allocated
+44 118678Allocated
+44 118688Allocated
+44 118707Allocated
+44 118733Allocated
+44 118808Allocated
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+44 118842Allocated
+44 118901Allocated
+44 118902Allocated
+44 118903Allocated
+44 118906Allocated
+44 118909Allocated
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+44 118913Allocated
+44 118916Allocated
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+44 118927Allocated
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+44 118940Allocated
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+44 118947Allocated
+44 118948Allocated
+44 118950Allocated
+44 118951Allocated
+44 118952Allocated
+44 118953Allocated
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+44 118970Allocated
+44 118971Allocated
+44 118972Allocated
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+44 118974Allocated
+44 118975Allocated
+44 118976Allocated
+44 118977Allocated
+44 118978Allocated
+44 118979Allocated
+44 118980Allocated
+44 118981Allocated
+44 118982Allocated
+44 118983Allocated
+44 118984Allocated
+44 118985Allocated
+44 118986Allocated
+44 118987Allocated
+44 118988Allocated
+44 118989Allocated
+44 118990Allocated
+44 120033Allocated
+44 120041Allocated
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+44 1200871Allocated
+44 1202017Allocated
+44 1202026Allocated
+44 1202034Allocated
+44 1202039Allocated
+44 1202043Allocated
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+44 1202045Allocated
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+44 1202063Allocated
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+44 1202092Allocated
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+44 1202096Allocated
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+44 120220Allocated
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Per-area pages

Related lookups

Frequently asked questions

What does it mean that BT is the range holder?

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

Of its 17,634 allocated ranges: 16,558 landline (01/02), 428 uk-wide (03), 394 premium rate (09), 95 freephone (080), 91 service (084/087), 64 corporate / voip (05), 4 other. The oldest dates from 1 January 1994 and the newest from 24 July 2026.

Which area codes does BT have most numbers in?

By allocated blocks: 020 London (1344), 028 Northern Ireland (349), 0161 Manchester (273), 01273 Brighton (232), 0121 Birmingham (226).

Are numbers from BT's ranges reported as scams?

Visitors have checked 1,940 different numbers from these ranges here since May 2026. 38 verdicts have been left on them: 26 scam, 4 nuisance, 8 safe. A scam verdict is about the caller using the number, not BT.

How often is the BT list updated?

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