Code allocations for the 01823 STD code

Summary

  • Status
    • Free for National Dialling Only: 19
    • Allocated: 147
    • Protected: 216
    • Free: 6
  • Operators : 101
  • Latest change : October 2005
Click here for Status definitions
Have you received a call from a number beginning 01823? Get information on a full number beginning 01823, using our full UK number search.
Find out about the location and calling costs for 01823 numbers on our 01823 code page.

This page contains information about which telephone companies the various 01823 numbers are allocated to.

First Digits Status Communications Provider Number Length Notes Change
01823 00 Free for National Dialling Only - (0)+10 - -
01823 01 Free for National Dialling Only - (0)+10 - -
01823 02 Free for National Dialling Only - (0)+10 - -
01823 03 Allocated FleXtel Limited (0)+10 - 24/10/2005
01823 04 Free for National Dialling Only - (0)+10 - -
01823 05 Free for National Dialling Only - (0)+10 - -
01823 06 Free for National Dialling Only - (0)+10 - -
01823 07 Free for National Dialling Only - (0)+10 - -
01823 08 Free for National Dialling Only - (0)+10 - -
01823 09 Free for National Dialling Only - (0)+10 - -
01823 10 Free for National Dialling Only - (0)+10 - -
01823 11 Free for National Dialling Only - (0)+10 - -
01823 12 Free for National Dialling Only - (0)+10 - -
01823 13 Free for National Dialling Only - (0)+10 - -
01823 14 Free for National Dialling Only - (0)+10 - -
01823 15 Free for National Dialling Only - (0)+10 - -
01823 16 Free for National Dialling Only - (0)+10 - -
01823 17 Free for National Dialling Only - (0)+10 - -
01823 18 Free for National Dialling Only - (0)+10 - -
01823 19 Free for National Dialling Only - (0)+10 - -
01823 20 Allocated InTechnology Plc 4+6 - 08/06/2007
01823 21 Allocated Gamma Telecom Holdings Ltd 4+6 - 05/04/2004
01823 220 Allocated Level 3 Communications UK Limited 4+6 - 09/09/1999
01823 221 Protected - 4+6 - -
01823 222 Protected - 4+6 - -
01823 223 Allocated Level 3 Communications UK Limited 4+6 - 09/09/1999
01823 224 Protected - 4+6 - -
01823 225 Allocated Level 3 Communications UK Limited 4+6 - 09/09/1999
01823 226 Allocated Level 3 Communications UK Limited 4+6 - 09/09/1999
01823 227 Protected - 4+6 - -
01823 228 Protected - 4+6 - -
01823 229 Allocated Level 3 Communications UK Limited 4+6 - 09/09/1999
01823 23 Allocated Affiniti Integrated Solutions Ltd 4+6 - 04/11/1998
01823 24 Allocated Telephony Services Limited 4+6 - 01/11/2004
01823 25 Allocated BT 4+6 - 15/07/1994
01823 26 Allocated Vodafone Ltd (Energis) 4+6 - 26/05/2006
01823 27 Allocated BT 4+6 - 15/07/1994
01823 28 Allocated BT 4+6 - 15/07/1994
01823 290 Allocated Linear Telecoms Limited 4+6 - 18/10/2010
01823 291 Allocated Internexus Networks Limited 4+6 - 22/11/2011
01823 292 Allocated Hello Telecom (UK) PLC 4+6 - 23/11/2011
01823 293 Allocated Bicom Systems EURL 4+6 - 01/03/2012
01823 294 Allocated ICC Networks Ltd 4+6 - 17/04/2012
01823 295 Allocated Broadcast Telecom Ltd 4+6 - 13/03/2012
01823 296 Allocated API Telecom Limited 4+6 - 18/04/2012
01823 297 Allocated Invoco Ltd 4+6 - 01/05/2012
01823 298 Allocated Content Guru Ltd 4+6 - 11/10/2012
01823 299 Allocated iNet Telecoms Ltd (Voipfone) 4+6 - 21/10/2011
01823 30 Allocated BT 4+6 - 15/07/1994
01823 31 Allocated BT 4+6 - 15/07/1994
01823 32 Allocated BT 4+6 - 15/07/1994
01823 33 Allocated BT 4+6 - 15/07/1994
01823 34 Allocated BT 4+6 - 15/07/1994
01823 35 Allocated BT 4+6 - 15/07/1994
01823 36 Allocated BT 4+6 - 15/07/1994
01823 370 Allocated Inclarity Communications Ltd 4+6 - 21/06/2004
01823 371 Allocated Inclarity Communications Ltd 4+6 - 21/06/2004
01823 372 Allocated Inclarity Communications Ltd 4+6 - 21/06/2004
01823 373 Protected - 4+6 - -
01823 374 Protected - 4+6 - -
01823 375 Allocated Inclarity Communications Ltd 4+6 - 21/06/2004
01823 376 Protected - 4+6 - -
01823 377 Protected - 4+6 - -
01823 378 Protected - 4+6 - -
01823 379 Protected - 4+6 - -
01823 38 Allocated Danemere Street Creative 4+6 - 24/06/2005
01823 39 Allocated Edge Telecom Limited 4+6 - 25/01/2005
01823 40 Allocated BT 4+6 - 15/07/1994
01823 41 Allocated BT 4+6 - 15/07/1994
01823 42 Allocated BT 4+6 - 15/07/1994
01823 43 Allocated BT 4+6 - 15/07/1994
01823 44 Allocated BT 4+6 - 15/07/1994
01823 45 Allocated BT 4+6 - 15/07/1994
01823 46 Allocated BT 4+6 - 15/07/1994
01823 47 Allocated Magrathea Telecommunications Limited 4+6 - 24/09/2004
01823 48 Allocated BT 4+6 - 15/07/1994
01823 49 Allocated BT 4+6 - 15/07/1994
01823 500 Protected - 4+6 - -
01823 501 Protected - 4+6 - -
01823 502 Protected - 4+6 - -
01823 503 Allocated Coms.Com Ltd 4+6 - 06/06/2006
01823 504 Protected - 4+6 - -
01823 505 Protected - 4+6 - -
01823 506 Protected - 4+6 - -
01823 507 Protected - 4+6 - -
01823 508 Protected - 4+6 - -
01823 509 Protected - 4+6 - -
01823 51 Allocated Callagenix Ltd 4+6 F-Digit '0' 23/10/2006
01823 52 Allocated Teledesign Ltd 4+6 F-Digit '2' 26/09/2006
01823 53 Allocated TTNC Limited 4+6 F-Digits '0,1,2,3,4,5,6,7,8,9 10/10/2006
01823 540 Protected - 4+6 - -
01823 541 Protected - 4+6 - -
01823 542 Protected - 4+6 - -
01823 543 Protected - 4+6 - -
01823 544 Protected - 4+6 - -
01823 545 Protected - 4+6 - -
01823 546 Protected - 4+6 - -
01823 547 Protected - 4+6 - -
01823 548 Protected - 4+6 - -
01823 549 Protected - 4+6 - -
01823 55 Allocated Barritel Limited 4+6 F-Digit '2' 02/10/2006
01823 56 Allocated TelNG Limited 4+6 F-Digit '2' 28/02/2007
01823 570 Protected - 4+6 - -
01823 571 Protected - 4+6 - -
01823 572 Protected - 4+6 - -
01823 573 Protected - 4+6 - -
01823 574 Protected - 4+6 - -
01823 575 Protected - 4+6 - -
01823 576 Protected - 4+6 - -
01823 577 Allocated Spitfire Network Services Ltd 4+6 - 11/11/2011
01823 578 Protected - 4+6 - -
01823 579 Protected - 4+6 - -
01823 580 Protected - 4+6 - -
01823 581 Protected - 4+6 - -
01823 582 Protected - 4+6 - -
01823 583 Protected - 4+6 - -
01823 584 Protected - 4+6 - -
01823 585 Protected - 4+6 - -
01823 586 Protected - 4+6 - -
01823 587 Protected - 4+6 - -
01823 588 Protected - 4+6 - -
01823 589 Protected - 4+6 - -
01823 590 Allocated Resilient Networks Plc 4+6 - 05/01/2007
01823 591 Allocated Resilient Networks Plc 4+6 - 05/01/2007
01823 592 Protected - 4+6 - -
01823 593 Protected - 4+6 - -
01823 594 Protected - 4+6 - -
01823 595 Protected - 4+6 - -
01823 596 Protected - 4+6 - -
01823 597 Protected - 4+6 - -
01823 598 Protected - 4+6 - -
01823 599 Allocated Resilient Networks Plc 4+6 - 05/01/2007
01823 60 Allocated BT 4+6 - 15/07/1994
01823 610 Protected - 4+6 - -
01823 611 Protected - 4+6 - -
01823 612 Protected - 4+6 - -
01823 613 Protected - 4+6 - -
01823 614 Protected - 4+6 - -
01823 615 Protected - 4+6 - -
01823 616 Protected - 4+6 - -
01823 617 Allocated TalkTalk Communications Limited 4+6 - 20/01/2012
01823 618 Allocated TalkTalk Communications Limited 4+6 - 20/01/2012
01823 619 Allocated TalkTalk Communications Limited 4+6 - 20/01/2012
01823 62 Allocated BT 4+6 - 15/07/1994
01823 63 Allocated Vodafone Ltd (Thus) 4+6 - 29/09/2003
01823 640 Allocated Vodafone Ltd (C&W) 4+6 - 22/02/2010
01823 641 Allocated Vodafone Ltd (C&W) 4+6 - 22/02/2010
01823 642 Allocated Vodafone Ltd (C&W) 4+6 - 22/02/2010
01823 643 Allocated Vodafone Ltd (C&W) 4+6 - 22/02/2010
01823 644 Allocated Vodafone Ltd (C&W) 4+6 - 22/02/2010
01823 645 Allocated Vodafone Ltd (C&W) 4+6 - 22/02/2010
01823 646 Protected - 4+6 - -
01823 647 Protected - 4+6 - -
01823 648 Protected - 4+6 - -
01823 649 Allocated Vodafone Ltd (C&W) 4+6 - 22/02/2010
01823 65 Allocated BT 4+6 - 08/07/1997
01823 66 Allocated BT 4+6 - 15/07/1994
01823 67 Allocated BT 4+6 - 15/07/1994
01823 68 Allocated BT 4+6 - 15/07/1994
01823 69 Allocated BT 4+6 - 15/07/1994
01823 700 Allocated Localphone Limited 4+6 - 14/05/2007
01823 701 Allocated (aq) Limited trading as aql 4+6 - 13/09/2007
01823 702 Allocated Net-Work Internet Ltd 4+6 - 21/09/2007
01823 703 Allocated Frontier Systems Ltd 4+6 - 27/09/2007
01823 704 Allocated Nationwide Telephone Assistance Ltd 4+6 - 22/10/2007
01823 705 Allocated VoIP-Un Limited 4+6 - 05/11/2007
01823 706 Allocated Premium O Limited 4+6 - 08/02/2008
01823 707 Allocated Telecom2 Ltd 4+6 - 10/09/2009
01823 708 Allocated Timico Limited 4+6 - 23/05/2008
01823 709 Allocated Nodemax Limited 4+6 - 15/07/2008
01823 710 Allocated TalkTalk Communications Limited 4+6 - 29/07/2008
01823 711 Allocated Voxbone SA 4+6 - 26/09/2008
01823 712 Allocated Starcomm Ltd 4+6 - 02/10/2008
01823 713 Allocated Served Up Limited. 4+6 - 09/10/2008
01823 714 Allocated 3C Limited 4+6 - 20/10/2008
01823 715 Allocated Solutios Limited 4+6 - 26/11/2008
01823 716 Allocated Mars Communications Limited 4+6 - 06/02/2009
01823 717 Allocated IPV6 Limited 4+6 - 13/02/2009
01823 718 Allocated Magnetic North Software Limited 4+6 - 02/08/2010
01823 719 Allocated X-Pilot Limited 4+6 - 23/06/2009
01823 72 Allocated Vodafone Ltd (C&W) 4+6 F-Digits '0,1,2,3,4,5,6,7,8,9' 16/02/2010
01823 730 Allocated Andrews & Arnold (Numbers) Ltd 4+6 - 02/04/2009
01823 731 Allocated Mundio Mobile Limited 4+6 - 01/07/2009
01823 732 Allocated CFL Communications Limited 4+6 - 17/07/2009
01823 733 Allocated Telecoms World Plc 4+6 - 25/06/2009
01823 734 Allocated Known Communications Limited 4+6 - 18/09/2009
01823 735 Allocated Nexus Telecommunications Limited 4+6 - 30/09/2009
01823 736 Allocated Wightfibre Limited 4+6 - 03/12/2009
01823 737 Allocated Invomo Ltd 4+6 - 22/12/2009
01823 738 Allocated i-Net Communications Group Plc 4+6 - 14/01/2010
01823 739 Allocated TeleWare PLC 4+6 - 26/01/2010
01823 740 Allocated Buzz Networks Limited 4+6 - 01/03/2010
01823 741 Allocated Calltracks Limited 4+6 - 08/07/2010
01823 742 Allocated Atomstream Limited 4+6 - 29/03/2010
01823 743 Allocated Windsor Telecom Plc 4+6 - 22/07/2010
01823 744 Allocated Suretec Systems Ltd 4+6 - 13/05/2010
01823 745 Allocated Numbergroup Network Ltd 4+6 - 14/06/2010
01823 746 Allocated Simwood eSMS Limited 4+6 - 09/08/2010
01823 747 Allocated VoiceHost Limited 4+6 - 05/10/2010
01823 748 Allocated Telephone Box Limited 4+6 - 10/12/2010
01823 749 Protected - 4+6 - -
01823 750 Allocated Cheers International Sales Limited 4+6 - 15/12/2010
01823 751 Allocated Phone Co-Op Numbering Limited 4+6 - 23/12/2010
01823 752 Allocated Invosys Limited 4+6 - 20/01/2011
01823 753 Allocated Nexbridge Communications Limited 4+6 - 17/03/2011
01823 754 Allocated Tesla Dynamic Ltd 4+6 - 30/06/2011
01823 755 Allocated IP Base Ltd 4+6 - 21/01/2011
01823 756 Allocated Orbtalk Limited 4+6 - 16/09/2011
01823 757 Allocated Minotaur Telecom Limited 4+6 - 07/04/2011
01823 758 Allocated Globecom International Limited 4+6 - 06/01/2011
01823 759 Allocated Barritec Limited 4+6 - 20/09/2011
01823 760 Allocated IOVOX Limited 4+6 - 09/07/2012
01823 761 Allocated Ziron (UK) Ltd 4+6 - 31/07/2012
01823 762 Allocated TalkTalk Communications Limited 4+6 - 13/08/2012
01823 763 Allocated Media Hawk Ltd 4+6 - 10/04/2013
01823 764 Allocated Orange Business Holdings UK Limited 4+6 - 16/01/2013
01823 765 Allocated Kalnet4u Ltd 4+6 - 03/06/2013
01823 766 Allocated We Love Communications Limited 4+6 - 06/08/2012
01823 767 Allocated Numbers Plus Ltd 4+6 - 13/02/2013
01823 768 Allocated TelecomEight Network Ltd 4+6 - 04/04/2013
01823 769 Allocated XoverX Ltd 4+6 - 26/04/2013
01823 770 Allocated iHub UK Ltd 4+6 - 22/08/2013
01823 771 Allocated TalkTalk Communications Limited 4+6 - 09/09/2014
01823 772 Free - 4+6 - -
01823 773 Allocated Radius Communications Limited 4+6 - 07/01/2014
01823 774 Free - 4+6 - -
01823 775 Free - 4+6 - -
01823 776 Free - 4+6 - -
01823 777 Allocated Liquid 11 Limited 4+6 - 13/06/2013
01823 778 Free - 4+6 - -
01823 779 Free - 4+6 - -
01823 780 Protected - 4+6 - -
01823 781 Protected - 4+6 - -
01823 782 Protected - 4+6 - -
01823 783 Protected - 4+6 - -
01823 784 Protected - 4+6 - -
01823 785 Protected - 4+6 - -
01823 786 Protected - 4+6 - -
01823 787 Protected - 4+6 - -
01823 788 Protected - 4+6 - -
01823 789 Protected - 4+6 - -
01823 790 Protected - 4+6 - -
01823 791 Protected - 4+6 - -
01823 792 Protected - 4+6 - -
01823 793 Protected - 4+6 - -
01823 794 Protected - 4+6 - -
01823 795 Protected - 4+6 - -
01823 796 Protected - 4+6 - -
01823 797 Protected - 4+6 - -
01823 798 Protected - 4+6 - -
01823 799 Protected - 4+6 - -
01823 800 Protected - 4+6 - -
01823 801 Protected - 4+6 - -
01823 802 Protected - 4+6 - -
01823 803 Protected - 4+6 - -
01823 804 Protected - 4+6 - -
01823 805 Protected - 4+6 - -
01823 806 Protected - 4+6 - -
01823 807 Protected - 4+6 - -
01823 808 Protected - 4+6 - -
01823 809 Protected - 4+6 - -
01823 810 Protected - 4+6 - -
01823 811 Protected - 4+6 - -
01823 812 Protected - 4+6 - -
01823 813 Protected - 4+6 - -
01823 814 Protected - 4+6 - -
01823 815 Protected - 4+6 - -
01823 816 Protected - 4+6 - -
01823 817 Protected - 4+6 - -
01823 818 Protected - 4+6 - -
01823 819 Protected - 4+6 - -
01823 820 Protected - 4+6 - -
01823 821 Protected - 4+6 - -
01823 822 Protected - 4+6 - -
01823 823 Protected - 4+6 - -
01823 824 Protected - 4+6 - -
01823 825 Protected - 4+6 - -
01823 826 Protected - 4+6 - -
01823 827 Protected - 4+6 - -
01823 828 Protected - 4+6 - -
01823 829 Protected - 4+6 - -
01823 830 Protected - 4+6 - -
01823 831 Protected - 4+6 - -
01823 832 Protected - 4+6 - -
01823 833 Protected - 4+6 - -
01823 834 Protected - 4+6 - -
01823 835 Protected - 4+6 - -
01823 836 Protected - 4+6 - -
01823 837 Protected - 4+6 - -
01823 838 Protected - 4+6 - -
01823 839 Protected - 4+6 - -
01823 840 Protected - 4+6 - -
01823 841 Protected - 4+6 - -
01823 842 Protected - 4+6 - -
01823 843 Protected - 4+6 - -
01823 844 Protected - 4+6 - -
01823 845 Protected - 4+6 - -
01823 846 Protected - 4+6 - -
01823 847 Protected - 4+6 - -
01823 848 Protected - 4+6 - -
01823 849 Protected - 4+6 - -
01823 850 Protected - 4+6 - -
01823 851 Protected - 4+6 - -
01823 852 Protected - 4+6 - -
01823 853 Protected - 4+6 - -
01823 854 Protected - 4+6 - -
01823 855 Protected - 4+6 - -
01823 856 Protected - 4+6 - -
01823 857 Protected - 4+6 - -
01823 858 Protected - 4+6 - -
01823 859 Protected - 4+6 - -
01823 860 Protected - 4+6 - -
01823 861 Protected - 4+6 - -
01823 862 Protected - 4+6 - -
01823 863 Protected - 4+6 - -
01823 864 Protected - 4+6 - -
01823 865 Protected - 4+6 - -
01823 866 Protected - 4+6 - -
01823 867 Protected - 4+6 - -
01823 868 Protected - 4+6 - -
01823 869 Protected - 4+6 - -
01823 870 Protected - 4+6 - -
01823 871 Protected - 4+6 - -
01823 872 Protected - 4+6 - -
01823 873 Protected - 4+6 - -
01823 874 Protected - 4+6 - -
01823 875 Protected - 4+6 - -
01823 876 Protected - 4+6 - -
01823 877 Protected - 4+6 - -
01823 878 Protected - 4+6 - -
01823 879 Protected - 4+6 - -
01823 880 Protected - 4+6 - -
01823 881 Protected - 4+6 - -
01823 882 Protected - 4+6 - -
01823 883 Protected - 4+6 - -
01823 884 Protected - 4+6 - -
01823 885 Protected - 4+6 - -
01823 886 Protected - 4+6 - -
01823 887 Protected - 4+6 - -
01823 888 Protected - 4+6 - -
01823 889 Protected - 4+6 - -
01823 890 Protected - 4+6 - -
01823 891 Protected - 4+6 - -
01823 892 Protected - 4+6 - -
01823 893 Protected - 4+6 - -
01823 894 Protected - 4+6 - -
01823 895 Protected - 4+6 - -
01823 896 Protected - 4+6 - -
01823 897 Protected - 4+6 - -
01823 898 Protected - 4+6 - -
01823 899 Protected - 4+6 - -
01823 90 Allocated TG Support Limited 4+6 - 05/07/2006
01823 91 Allocated FleXtel Limited 4+6 - 31/10/2005
01823 920 Protected - 4+6 - -
01823 921 Protected - 4+6 - -
01823 922 Protected - 4+6 - -
01823 923 Protected - 4+6 - -
01823 924 Allocated Six Degrees Unified Comms Limited 4+6 - 17/01/2013
01823 925 Protected - 4+6 - -
01823 926 Protected - 4+6 - -
01823 927 Protected - 4+6 - -
01823 928 Protected - 4+6 - -
01823 929 Protected - 4+6 - -
01823 93 Allocated Syntec Limited 4+6 - 17/11/2005
01823 940 Protected - 4+6 - -
01823 941 Protected - 4+6 - -
01823 942 Protected - 4+6 - -
01823 943 Protected - 4+6 - -
01823 944 Protected - 4+6 - -
01823 945 Protected - 4+6 - -
01823 946 Protected - 4+6 - -
01823 947 Protected - 4+6 - -
01823 948 Protected - 4+6 - -
01823 949 Protected - 4+6 - -
01823 950 Allocated Digitech Solutions Global Limited 4+6 - 09/09/2010
01823 951 Protected - 4+6 - -
01823 952 Protected - 4+6 - -
01823 953 Protected - 4+6 - -
01823 954 Protected - 4+6 - -
01823 955 Protected - 4+6 - -
01823 956 Protected - 4+6 - -
01823 957 Protected - 4+6 - -
01823 958 Protected - 4+6 - -
01823 959 Protected - 4+6 - -
01823 96 Allocated Net Solutions Europe Limited 4+6 F-Digit '6' 31/01/2006
01823 97 Allocated British Sky Broadcasting Limited 4+6 F-Digits '0,1,2' 16/05/2006
01823 98 Allocated Easynet Enterprise Services Limited 4+6 F-Digit '5' 18/04/2006
01823 99 Protected - N/A - -