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Range holder

Call Stream Limited

Call Stream Limited is listed by Ofcom as the originally-allocated provider for 49 UK number ranges, mostly uk-wide (03). Numbers within these blocks may have since been ported to a different carrier.

Call Stream Limited at a glance

Number ranges
49
Number types
  • UK-wide (03) 19
  • Service (084/087) 18
  • Freephone (080) 10
  • Other 2
First allocation
22 August 2005
Latest allocation
13 January 2020

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

Allocated ranges by year

The year Ofcom allocated each range Call Stream Limited still holds; the busiest year was 2014 (15).

200512
200710
20081
20091
20114
20121
20132
201415
20161
20171
20201

If a number from Call Stream 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 Call Stream Limited ranges49, by prefix
PrefixStatus
+44 333400Allocated
+44 343227Allocated
+44 343465Allocated
+44 344274Allocated
+44 344282Allocated
+44 344299Allocated
+44 344314Allocated
+44 344402Allocated
+44 344479Allocated
+44 344557Allocated
+44 344573Allocated
+44 344577Allocated
+44 344922Allocated
+44 344977Allocated
+44 345040Allocated
+44 345218Allocated
+44 370942Allocated
+44 371699Allocated
+44 371902Allocated
+44 8001124Allocated
+44 8002218Allocated
+44 8002230Allocated
+44 8003308Allocated
+44 8004402Allocated
+44 8005501Allocated
+44 8006681Allocated
+44 8006850Allocated
+44 8009978Allocated
+44 808264Allocated
+44 843227Allocated
+44 843465Allocated
+44 844274Allocated
+44 844282Allocated
+44 844299Allocated
+44 844314Allocated
+44 844402Allocated
+44 844479Allocated
+44 844557Allocated
+44 844573Allocated
+44 844577Allocated
+44 844922Allocated
+44 844977Allocated
+44 845040Allocated
+44 845218Allocated
+44 870942Allocated
+44 871699Allocated
+44 871902Allocated
+44 899806Allocated
+44 899807Allocated

Frequently asked questions

What does it mean that Call Stream Limited is the range holder?

Ofcom allocated the blocks listed on this page to Call Stream 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 Call Stream Limited hold?

Of its 49 allocated ranges: 19 uk-wide (03), 18 service (084/087), 10 freephone (080), 2 other. The oldest dates from 22 August 2005 and the newest from 13 January 2020.

How often is the Call Stream Limited list updated?

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