This page contains information about which telephone companies the various 03458 numbers are allocated to.
| First Digits | Status | Communications Provider | Change |
|---|---|---|---|
| 0345 800 | Allocated | Jersey Telecom | 08/2014 |
| 0345 801 | Allocated | Cheers International Sales Limited | 08/2014 |
| 0345 802 | Protected | - | - |
| 0345 803 | Allocated | TalkTalk Communications Limited | 07/2008 |
| 0345 804 | Protected | - | - |
| 0345 805 | Allocated | Magrathea Telecommunications Limited | 10/2010 |
| 0345 806 | Allocated | TalkTalk Communications Limited | 01/2011 |
| 0345 807 | Allocated | 24 Seven Communications Ltd | 06/2009 |
| 0345 808 | Protected | - | - |
| 0345 809 | Allocated | TalkTalk Communications Limited | 07/2008 |
| 0345 810 | Allocated | Affiniti Integrated Solutions Ltd | 05/2007 |
| 0345 811 | Allocated | Syntec Limited | 06/2007 |
| 0345 812 | Allocated | Admiral Telecom Limited | 11/2007 |
| 0345 813 | Protected | - | - |
| 0345 814 | Protected | - | - |
| 0345 815 | Allocated | TalkTalk Communications Limited | 07/2008 |
| 0345 816 | Protected | - | - |
| 0345 817 | Protected | - | - |
| 0345 818 | Allocated | TalkTalk Communications Limited | 04/2014 |
| 0345 819 | Protected | - | - |
| 0345 820 | Allocated | Alphatalk Ltd | 04/2011 |
| 0345 821 | Allocated | Alphatalk Ltd | 04/2011 |
| 0345 822 | Allocated | Alphatalk Ltd | 04/2011 |
| 0345 823 | Allocated | Alphatalk Ltd | 04/2011 |
| 0345 824 | Allocated | Alphatalk Ltd | 04/2011 |
| 0345 825 | Allocated | Alphatalk Ltd | 04/2011 |
| 0345 826 | Allocated | Alphatalk Ltd | 04/2011 |
| 0345 827 | Allocated | Alphatalk Ltd | 04/2011 |
| 0345 828 | Allocated | Alphatalk Ltd | 04/2011 |
| 0345 829 | Allocated | Alphatalk Ltd | 04/2011 |
| 0345 830 | Protected | - | - |
| 0345 831 | Protected | - | - |
| 0345 832 | Allocated | TalkTalk Communications Limited | 07/2008 |
| 0345 833 | Allocated | Nexus Telecommunications Limited | 07/2007 |
| 0345 834 | Protected | - | - |
| 0345 835 | Allocated | Vodafone Ltd (C&W) | 04/2012 |
| 0345 836 | Protected | - | - |
| 0345 837 | Protected | - | - |
| 0345 838 | Allocated | Nexus Telecommunications Limited | 07/2007 |
| 0345 839 | Allocated | TalkTalk Communications Limited | 07/2008 |
| 0345 840 | Allocated | Virgin Media Limited | 07/2008 |
| 0345 841 | Allocated | Virgin Media Limited | 07/2008 |
| 0345 842 | Allocated | Virgin Media Limited | 07/2008 |
| 0345 843 | Allocated | Virgin Media Limited | 07/2008 |
| 0345 844 | Allocated | Virgin Media Limited | 07/2008 |
| 0345 845 | Allocated | Virgin Media Limited | 07/2008 |
| 0345 846 | Allocated | Virgin Media Limited | 07/2008 |
| 0345 847 | Allocated | Virgin Media Limited | 07/2008 |
| 0345 848 | Allocated | Virgin Media Limited | 07/2008 |
| 0345 849 | Allocated | Virgin Media Limited | 07/2008 |
| 0345 850 | Allocated | BT | 04/2007 |
| 0345 851 | Allocated | Buzz Networks Limited | 08/2008 |
| 0345 852 | Allocated | FleXtel Limited | 04/2007 |
| 0345 853 | Protected | - | - |
| 0345 854 | Allocated | Invomo Ltd | 10/2007 |
| 0345 855 | Allocated | Buzz Networks Limited | 08/2008 |
| 0345 856 | Protected | - | - |
| 0345 857 | Protected | - | - |
| 0345 858 | Protected | - | - |
| 0345 859 | Protected | - | - |
| 0345 860 | Allocated | FleXtel Limited | 04/2007 |
| 0345 861 | Protected | - | - |
| 0345 862 | Protected | - | - |
| 0345 863 | Allocated | TalkTalk Communications Limited | 07/2008 |
| 0345 864 | Allocated | Gamma Telecom Holdings Ltd | 02/2008 |
| 0345 865 | Protected | - | - |
| 0345 866 | Protected | - | - |
| 0345 867 | Allocated | Magrathea Telecommunications Limited | 11/2007 |
| 0345 868 | Allocated | Magrathea Telecommunications Limited | 11/2007 |
| 0345 869 | Allocated | Magrathea Telecommunications Limited | 11/2007 |
| 0345 870 | Protected | - | - |
| 0345 871 | Allocated | Dantec Enterprises Ltd | 09/2008 |
| 0345 872 | Allocated | Gamma Telecom Holdings Ltd | 02/2008 |
| 0345 873 | Allocated | Gamma Telecom Holdings Ltd | 02/2008 |
| 0345 874 | Protected | - | - |
| 0345 875 | Protected | - | - |
| 0345 876 | Protected | - | - |
| 0345 877 | Allocated | Vodafone Ltd (C&W) | 03/2010 |
| 0345 878 | Allocated | Vodafone Ltd (C&W) | 03/2010 |
| 0345 879 | Protected | - | - |
| 0345 880 | Allocated | Six Degrees Unified Comms Limited | 07/2009 |
| 0345 881 | Allocated | Six Degrees Unified Comms Limited | 07/2009 |
| 0345 882 | Allocated | Six Degrees Unified Comms Limited | 07/2009 |
| 0345 883 | Allocated | Six Degrees Unified Comms Limited | 07/2009 |
| 0345 884 | Allocated | Six Degrees Unified Comms Limited | 07/2009 |
| 0345 885 | Allocated | Six Degrees Unified Comms Limited | 07/2009 |
| 0345 886 | Allocated | Six Degrees Unified Comms Limited | 07/2009 |
| 0345 887 | Allocated | Six Degrees Unified Comms Limited | 07/2009 |
| 0345 888 | Allocated | Six Degrees Unified Comms Limited | 07/2009 |
| 0345 889 | Allocated | Six Degrees Unified Comms Limited | 07/2009 |
| 0345 890 | Allocated | Vodafone Ltd (Thus) | 01/2012 |
| 0345 891 | Allocated | FleXtel Limited | 04/2007 |
| 0345 892 | Allocated | FleXtel Limited | 04/2007 |
| 0345 893 | Protected | - | - |
| 0345 894 | Allocated | Gamma Telecom Holdings Ltd | 02/2008 |
| 0345 895 | Protected | - | - |
| 0345 896 | Protected | - | - |
| 0345 897 | Protected | - | - |
| 0345 898 | Allocated | Telecoms World Plc | 10/2008 |
| 0345 899 | Protected | - | - |