Range holder
Core Communication Services Limited
Core Communication Services Limited is listed by Ofcom as the originally-allocated provider for 12 UK number ranges, mostly mobile (07). Numbers within these blocks may have since been ported to a different carrier.
Core Communication Services Limited at a glance
- Number ranges
- 12
- Number types
- Mobile (07) 12
- First allocation
- 18 June 2009
- Latest allocation
- 26 June 2009
Source: Ofcom numbering data, re-imported weekly. Each range is counted once.
If a number from Core Communication Services Limited's ranges called you
No clear pattern in reports for these numbers yet. If a call worried you:
- 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
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.
- 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.
- 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.
All Core Communication Services Limited ranges12, by prefix
| Prefix | Status |
|---|---|
| +44 77442 | Allocated |
| +44 77443 | Allocated |
| +44 77444 | Allocated |
| +44 77445 | Allocated |
| +44 77446 | Allocated |
| +44 77447 | Allocated |
| +44 77448 | Allocated |
| +44 77449 | Allocated |
| +44 77552 | Allocated |
| +44 77553 | Allocated |
| +44 77554 | Allocated |
| +44 77555 | Allocated |
Related lookups
- Core Communication Services Limited scam & spam reportsCommunity-reported numbers on this holder's ranges
- (AQ) LIMITEDSibling range holder
- 001 International TelecomSibling range holder
- 08 Numbers LtdSibling range holder
- All range holdersBrowse every Ofcom-listed provider
- All UK area codesEvery 01/02 dialling code
- Top reported UK numbersCross-holder leaderboard
- Lookup any UK numberFree reverse phone lookup
- How Ofcom numbering worksThe UK numbering plan explained
- Range Holder vs current providerCornerstone guide
- Ofcom range holder lookupCornerstone guide
- UK phone number portability explainedCornerstone guide
- VoIP numbers UK — 056 vs 020Cornerstone guide
Frequently asked questions
What does it mean that Core Communication Services Limited is the range holder?
Ofcom allocated the blocks listed on this page to Core Communication Services 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 Communication Services Limited hold?
Of its 12 allocated ranges: 12 mobile (07). The oldest dates from 18 June 2009 and the newest from 26 June 2009.
How often is the Core Communication Services Limited list updated?
Ofcom publishes its numbering data every Wednesday and this page is rebuilt from it weekly, so new Core Communication Services Limited blocks appear within about a week.