Code allocations for the 01503 STD code

Summary

  • Status
    • Allocated: 91
    • Free: 12
    • Free for National Dialling Only: 20
    • Protected: 319
  • Operators : 81
  • Latest change : October 2007
Click here for Status definitions
Have you received a call from a number beginning 01503? Get information on a full number beginning 01503, using our full UK number search.
Find out about the location and calling costs for 01503 numbers on our 01503 code page.

This page contains information about which telephone companies the various 01503 numbers are allocated to.

First Digits Status Communications Provider Number Length Notes Change
01503 00 Free for National Dialling Only - (0)+10 - -
01503 01 Free for National Dialling Only - (0)+10 - -
01503 02 Free for National Dialling Only - (0)+10 - -
01503 03 Free for National Dialling Only - (0)+10 - -
01503 04 Free for National Dialling Only - (0)+10 - -
01503 05 Free for National Dialling Only - (0)+10 - -
01503 06 Free for National Dialling Only - (0)+10 - -
01503 07 Free for National Dialling Only - (0)+10 - -
01503 08 Free for National Dialling Only - (0)+10 - -
01503 09 Free for National Dialling Only - (0)+10 - -
01503 10 Free for National Dialling Only - (0)+10 - -
01503 11 Free for National Dialling Only - (0)+10 - -
01503 12 Free for National Dialling Only - (0)+10 - -
01503 13 Free for National Dialling Only - (0)+10 - -
01503 14 Free for National Dialling Only - (0)+10 - -
01503 15 Free for National Dialling Only - (0)+10 - -
01503 16 Free for National Dialling Only - (0)+10 - -
01503 17 Free for National Dialling Only - (0)+10 - -
01503 18 Free for National Dialling Only - (0)+10 - -
01503 19 Free for National Dialling Only - (0)+10 - -
01503 20 Allocated Magrathea Telecommunications Limited 4+6 - 24/09/2004
01503 21 Allocated Edge Telecom Limited 4+6 - 06/04/2005
01503 22 Allocated BT 4+6 - 15/07/1994
01503 23 Allocated BT 4+6 - 15/07/1994
01503 24 Allocated BT 4+6 - 15/07/1994
01503 25 Allocated BT 4+6 - 15/07/1994
01503 26 Allocated BT 4+6 - 15/07/1994
01503 27 Allocated BT 4+6 - 15/07/1994
01503 28 Allocated Vodafone Ltd (C&W) 4+6 F-Digits '0,1,2,3,4,5,6,7,8,9' 15/02/2010
01503 29 Allocated FleXtel Limited 4+6 - 21/10/2005
01503 30 Allocated (aq) Limited trading as aql 4+6 F-Digit '0' 19/10/2011
01503 31 Allocated Frontier Systems Ltd 4+6 F-Digit '3' 27/09/2007
01503 32 Allocated Nationwide Telephone Assistance Ltd 4+6 F-Digit '0' 02/10/2007
01503 33 Allocated Net-Work Internet Ltd 4+6 F-Digit '3' 22/10/2007
01503 34 Allocated VoIP-Un Limited 4+6 F-Digit '0' 30/10/2007
01503 350 Protected - 4+6 - -
01503 351 Protected - 4+6 - -
01503 352 Protected - 4+6 - -
01503 353 Protected - 4+6 - -
01503 354 Protected - 4+6 - -
01503 355 Protected - 4+6 - -
01503 356 Protected - 4+6 - -
01503 357 Allocated Premium O Limited 4+6 - 10/01/2008
01503 358 Protected - 4+6 - -
01503 359 Protected - 4+6 - -
01503 36 Allocated Telecom2 Ltd 4+6 F-Digit '6' 11/09/2009
01503 37 Allocated Nodemax Limited 4+6 F-Digit '0' 17/07/2008
01503 38 Allocated Timico Limited 4+6 F-Digit '8' 01/05/2008
01503 390 Allocated Voxbone SA 4+6 - 08/12/2011
01503 391 Protected - 4+6 - -
01503 392 Protected - 4+6 - -
01503 393 Protected - 4+6 - -
01503 394 Protected - 4+6 - -
01503 395 Protected - 4+6 - -
01503 396 Protected - 4+6 - -
01503 397 Protected - 4+6 - -
01503 398 Protected - 4+6 - -
01503 399 Protected - 4+6 - -
01503 40 Allocated Starcomm Ltd 4+6 F-Digit '0' 19/09/2008
01503 41 Allocated 3C Limited 4+6 F-Digit '2' 30/09/2008
01503 42 Allocated Solutios Limited 4+6 F-Digit '2' 27/10/2008
01503 43 Allocated Mars Communications Limited 4+6 F-Digit '0' 05/02/2009
01503 44 Allocated IPV6 Limited 4+6 F-Digit '0' 06/02/2009
01503 45 Allocated Andrews & Arnold (Numbers) Ltd 4+6 F-Digit '0' 13/03/2009
01503 46 Allocated Nexus Telecommunications Limited 4+6 F-Digit '0' 16/06/2009
01503 47 Allocated Mundio Mobile Limited 4+6 F-Digit '6' 07/07/2009
01503 48 Allocated Known Communications Limited 4+6 F-Digit '0' 18/09/2009
01503 490 Allocated Digitech Solutions Global Limited 4+6 - 27/04/2010
01503 491 Allocated Calltracks Limited 4+6 - 08/07/2010
01503 492 Allocated iNet Telecoms Ltd (Voipfone) 4+6 - 19/08/2010
01503 493 Allocated Numbergroup Network Ltd 4+6 - 15/11/2010
01503 494 Allocated Suretec Systems Ltd 4+6 - 06/05/2010
01503 495 Allocated Telephone Box Limited 4+6 - 10/12/2010
01503 496 Allocated VoiceHost Limited 4+6 - 05/10/2010
01503 497 Allocated Affiniti Integrated Solutions Ltd 4+6 - 01/12/2010
01503 498 Allocated Atomstream Limited 4+6 - 12/05/2010
01503 499 Allocated Windsor Telecom Plc 4+6 - 21/07/2010
01503 50 Allocated Telephony Services Limited 4+6 F-Digit '5' 23/06/2006
01503 510 Protected - 4+6 - -
01503 511 Protected - 4+6 - -
01503 512 Protected - 4+6 - -
01503 513 Protected - 4+6 - -
01503 514 Protected - 4+6 - -
01503 515 Protected - 4+6 - -
01503 516 Protected - 4+6 - -
01503 517 Protected - 4+6 - -
01503 518 Protected - 4+6 - -
01503 519 Protected - 4+6 - -
01503 52 Allocated TTNC Limited 4+6 F-Digit '0,1,2,3,4,5,6,7,8,9' 07/09/2006
01503 53 Allocated Served Up Limited. 4+6 F-Digit '3' 27/05/2008
01503 54 Allocated TelNG Limited 4+6 F-Digit '2' 27/02/2007
01503 55 Allocated Net Solutions Europe Limited 4+6 F-Digit '5' 22/03/2006
01503 56 Allocated Localphone Limited 4+6 F-Digit '0' 04/05/2007
01503 570 Protected - 4+6 - -
01503 571 Protected - 4+6 - -
01503 572 Protected - 4+6 - -
01503 573 Protected - 4+6 - -
01503 574 Protected - 4+6 - -
01503 575 Protected - 4+6 - -
01503 576 Protected - 4+6 - -
01503 577 Allocated Spitfire Network Services Ltd 4+6 - 10/11/2011
01503 578 Protected - 4+6 - -
01503 579 Protected - 4+6 - -
01503 58 Allocated InTechnology Plc 4+6 F-Digit '2' 06/08/2007
01503 590 Protected - 4+6 - -
01503 591 Protected - 4+6 - -
01503 592 Protected - 4+6 - -
01503 593 Protected - 4+6 - -
01503 594 Protected - 4+6 - -
01503 595 Protected - 4+6 - -
01503 596 Protected - 4+6 - -
01503 597 Protected - 4+6 - -
01503 598 Allocated TalkTalk Communications Limited 4+6 - 28/08/2007
01503 599 Allocated TalkTalk Communications Limited 4+6 - 28/08/2007
01503 60 Allocated CFL Communications Limited 4+6 F-Digit '0' 13/07/2009
01503 610 Allocated Cheers International Sales Limited 4+6 - 14/12/2010
01503 611 Allocated Phone Co-Op Numbering Limited 4+6 - 22/12/2010
01503 612 Allocated Globecom International Limited 4+6 - 04/01/2011
01503 613 Allocated Invosys Limited 4+6 - 04/01/2012
01503 614 Allocated Tesla Dynamic Ltd 4+6 - 30/06/2011
01503 615 Free - 4+6 - -
01503 616 Allocated Orbtalk Limited 4+6 - 19/09/2011
01503 617 Allocated Barritec Limited 4+6 - 26/09/2011
01503 618 Allocated Internexus Networks Limited 4+6 - 21/11/2011
01503 619 Allocated Invoco Ltd 4+6 - 26/09/2011
01503 62 Allocated Danemere Street Creative 4+6 - 21/07/2009
01503 630 Allocated IP Base Ltd 4+6 - 03/02/2011
01503 631 Allocated Nexbridge Communications Limited 4+6 - 16/03/2011
01503 632 Allocated Bicom Systems EURL 4+6 - 05/03/2012
01503 633 Allocated Broadcast Telecom Ltd 4+6 - 21/02/2012
01503 634 Allocated API Telecom Limited 4+6 - 30/03/2012
01503 635 Allocated Simwood eSMS Limited 4+6 - 01/05/2012
01503 636 Allocated IOVOX Limited 4+6 - 03/07/2012
01503 637 Allocated ICC Networks Ltd 4+6 - 17/04/2012
01503 638 Allocated Hello Telecom (UK) PLC 4+6 - 20/07/2012
01503 639 Allocated Ziron (UK) Ltd 4+6 - 30/07/2012
01503 640 Protected - 4+6 - -
01503 641 Protected - 4+6 - -
01503 642 Protected - 4+6 - -
01503 643 Protected - 4+6 - -
01503 644 Protected - 4+6 - -
01503 645 Protected - 4+6 - -
01503 646 Protected - 4+6 - -
01503 647 Protected - 4+6 - -
01503 648 Protected - 4+6 - -
01503 649 Protected - 4+6 - -
01503 650 Free - 4+6 - -
01503 651 Free - 4+6 - -
01503 652 Free - 4+6 - -
01503 653 Free - 4+6 - -
01503 654 Free - 4+6 - -
01503 655 Free - 4+6 - -
01503 656 Free - 4+6 - -
01503 657 Free - 4+6 - -
01503 658 Free - 4+6 - -
01503 659 Free - 4+6 - -
01503 660 Protected - 4+6 - -
01503 661 Protected - 4+6 - -
01503 662 Protected - 4+6 - -
01503 663 Protected - 4+6 - -
01503 664 Protected - 4+6 - -
01503 665 Protected - 4+6 - -
01503 666 Protected - 4+6 - -
01503 667 Protected - 4+6 - -
01503 668 Protected - 4+6 - -
01503 669 Protected - 4+6 - -
01503 670 Protected - 4+6 - -
01503 671 Protected - 4+6 - -
01503 672 Protected - 4+6 - -
01503 673 Protected - 4+6 - -
01503 674 Protected - 4+6 - -
01503 675 Protected - 4+6 - -
01503 676 Protected - 4+6 - -
01503 677 Protected - 4+6 - -
01503 678 Protected - 4+6 - -
01503 679 Protected - 4+6 - -
01503 680 Protected - 4+6 - -
01503 681 Protected - 4+6 - -
01503 682 Protected - 4+6 - -
01503 683 Protected - 4+6 - -
01503 684 Protected - 4+6 - -
01503 685 Protected - 4+6 - -
01503 686 Protected - 4+6 - -
01503 687 Protected - 4+6 - -
01503 688 Protected - 4+6 - -
01503 689 Protected - 4+6 - -
01503 690 Protected - 4+6 - -
01503 691 Protected - 4+6 - -
01503 692 Protected - 4+6 - -
01503 693 Protected - 4+6 - -
01503 694 Protected - 4+6 - -
01503 695 Protected - 4+6 - -
01503 696 Protected - 4+6 - -
01503 697 Protected - 4+6 - -
01503 698 Protected - 4+6 - -
01503 699 Protected - 4+6 - -
01503 700 Allocated Linear Telecoms Limited 4+6 - 12/10/2010
01503 701 Protected - 4+6 - -
01503 702 Protected - 4+6 - -
01503 703 Protected - 4+6 - -
01503 704 Protected - 4+6 - -
01503 705 Protected - 4+6 - -
01503 706 Protected - 4+6 - -
01503 707 Protected - 4+6 - -
01503 708 Protected - 4+6 - -
01503 709 Protected - 4+6 - -
01503 710 Protected - 4+6 - -
01503 711 Protected - 4+6 - -
01503 712 Protected - 4+6 - -
01503 713 Protected - 4+6 - -
01503 714 Protected - 4+6 - -
01503 715 Protected - 4+6 - -
01503 716 Protected - 4+6 - -
01503 717 Protected - 4+6 - -
01503 718 Protected - 4+6 - -
01503 719 Protected - 4+6 - -
01503 720 Allocated Six Degrees Unified Comms Limited 4+6 - 25/11/2005
01503 721 Protected - 4+6 - -
01503 722 Protected - 4+6 - -
01503 723 Protected - 4+6 - -
01503 724 Allocated Six Degrees Unified Comms Limited 4+6 - 25/11/2005
01503 725 Protected - 4+6 - -
01503 726 Protected - 4+6 - -
01503 727 Protected - 4+6 - -
01503 728 Protected - 4+6 - -
01503 729 Protected - 4+6 - -
01503 73 Allocated Syntec Limited 4+6 - 21/11/2005
01503 740 Protected - 4+6 - -
01503 741 Protected - 4+6 - -
01503 742 Protected - 4+6 - -
01503 743 Protected - 4+6 - -
01503 744 Protected - 4+6 - -
01503 745 Protected - 4+6 - -
01503 746 Protected - 4+6 - -
01503 747 Protected - 4+6 - -
01503 748 Protected - 4+6 - -
01503 749 Protected - 4+6 - -
01503 75 Allocated BT 4+6 - 02/08/1995
01503 760 Allocated Inclarity Communications Ltd 4+6 - 25/02/2013
01503 761 Allocated Inclarity Communications Ltd 4+6 - 25/02/2013
01503 762 Allocated Inclarity Communications Ltd 4+6 - 08/11/2012
01503 763 Protected - 4+6 - -
01503 764 Protected - 4+6 - -
01503 765 Allocated Inclarity Communications Ltd 4+6 - 25/02/2013
01503 766 Protected - 4+6 - -
01503 767 Protected - 4+6 - -
01503 768 Protected - 4+6 - -
01503 769 Protected - 4+6 - -
01503 77 Allocated Gamma Telecom Holdings Ltd 4+6 - 12/04/2005
01503 78 Allocated Barritel Limited 4+6 F-Digit '2' 21/08/2006
01503 79 Allocated Teledesign Ltd 4+6 F-Digit '2' 04/09/2007
01503 800 Allocated We Love Communications Limited 4+6 - 08/08/2012
01503 801 Allocated Content Guru Ltd 4+6 - 15/10/2012
01503 802 Allocated British Sky Broadcasting Limited 4+6 - 12/12/2012
01503 803 Allocated Minotaur Telecom Limited 4+6 - 18/12/2012
01503 804 Allocated Kalnet4u Ltd 4+6 - 22/05/2013
01503 805 Allocated iHub UK Ltd 4+6 - 16/08/2013
01503 806 Allocated Radius Communications Limited 4+6 - 08/01/2014
01503 807 Free - 4+6 - -
01503 808 Allocated i-Net Communications Group Plc 4+6 - 03/04/2013
01503 809 Allocated XoverX Ltd 4+6 - 30/04/2013
01503 810 Protected - 4+6 - -
01503 811 Protected - 4+6 - -
01503 812 Protected - 4+6 - -
01503 813 Protected - 4+6 - -
01503 814 Protected - 4+6 - -
01503 815 Protected - 4+6 - -
01503 816 Protected - 4+6 - -
01503 817 Protected - 4+6 - -
01503 818 Protected - 4+6 - -
01503 819 Protected - 4+6 - -
01503 820 Protected - 4+6 - -
01503 821 Protected - 4+6 - -
01503 822 Protected - 4+6 - -
01503 823 Protected - 4+6 - -
01503 824 Protected - 4+6 - -
01503 825 Protected - 4+6 - -
01503 826 Protected - 4+6 - -
01503 827 Protected - 4+6 - -
01503 828 Protected - 4+6 - -
01503 829 Protected - 4+6 - -
01503 830 Protected - 4+6 - -
01503 831 Protected - 4+6 - -
01503 832 Protected - 4+6 - -
01503 833 Protected - 4+6 - -
01503 834 Protected - 4+6 - -
01503 835 Protected - 4+6 - -
01503 836 Protected - 4+6 - -
01503 837 Protected - 4+6 - -
01503 838 Protected - 4+6 - -
01503 839 Protected - 4+6 - -
01503 840 Protected - 4+6 - -
01503 841 Protected - 4+6 - -
01503 842 Protected - 4+6 - -
01503 843 Protected - 4+6 - -
01503 844 Protected - 4+6 - -
01503 845 Protected - 4+6 - -
01503 846 Protected - 4+6 - -
01503 847 Protected - 4+6 - -
01503 848 Protected - 4+6 - -
01503 849 Protected - 4+6 - -
01503 850 Protected - 4+6 - -
01503 851 Protected - 4+6 - -
01503 852 Protected - 4+6 - -
01503 853 Protected - 4+6 - -
01503 854 Protected - 4+6 - -
01503 855 Protected - 4+6 - -
01503 856 Protected - 4+6 - -
01503 857 Protected - 4+6 - -
01503 858 Protected - 4+6 - -
01503 859 Protected - 4+6 - -
01503 860 Protected - 4+6 - -
01503 861 Protected - 4+6 - -
01503 862 Protected - 4+6 - -
01503 863 Protected - 4+6 - -
01503 864 Protected - 4+6 - -
01503 865 Protected - 4+6 - -
01503 866 Protected - 4+6 - -
01503 867 Protected - 4+6 - -
01503 868 Protected - 4+6 - -
01503 869 Protected - 4+6 - -
01503 870 Protected - 4+6 - -
01503 871 Protected - 4+6 - -
01503 872 Protected - 4+6 - -
01503 873 Protected - 4+6 - -
01503 874 Protected - 4+6 - -
01503 875 Protected - 4+6 - -
01503 876 Protected - 4+6 - -
01503 877 Protected - 4+6 - -
01503 878 Protected - 4+6 - -
01503 879 Protected - 4+6 - -
01503 880 Protected - 4+6 - -
01503 881 Protected - 4+6 - -
01503 882 Protected - 4+6 - -
01503 883 Protected - 4+6 - -
01503 884 Protected - 4+6 - -
01503 885 Protected - 4+6 - -
01503 886 Protected - 4+6 - -
01503 887 Protected - 4+6 - -
01503 888 Protected - 4+6 - -
01503 889 Protected - 4+6 - -
01503 890 Protected - 4+6 - -
01503 891 Protected - 4+6 - -
01503 892 Protected - 4+6 - -
01503 893 Protected - 4+6 - -
01503 894 Protected - 4+6 - -
01503 895 Protected - 4+6 - -
01503 896 Protected - 4+6 - -
01503 897 Protected - 4+6 - -
01503 898 Protected - 4+6 - -
01503 899 Protected - 4+6 - -
01503 900 Protected - 4+6 - -
01503 901 Protected - 4+6 - -
01503 902 Protected - 4+6 - -
01503 903 Protected - 4+6 - -
01503 904 Protected - 4+6 - -
01503 905 Protected - 4+6 - -
01503 906 Protected - 4+6 - -
01503 907 Protected - 4+6 - -
01503 908 Protected - 4+6 - -
01503 909 Protected - 4+6 - -
01503 910 Protected - 4+6 - -
01503 911 Protected - 4+6 - -
01503 912 Protected - 4+6 - -
01503 913 Protected - 4+6 - -
01503 914 Protected - 4+6 - -
01503 915 Protected - 4+6 - -
01503 916 Protected - 4+6 - -
01503 917 Protected - 4+6 - -
01503 918 Protected - 4+6 - -
01503 919 Protected - 4+6 - -
01503 920 Protected - 4+6 - -
01503 921 Protected - 4+6 - -
01503 922 Protected - 4+6 - -
01503 923 Protected - 4+6 - -
01503 924 Protected - 4+6 - -
01503 925 Protected - 4+6 - -
01503 926 Protected - 4+6 - -
01503 927 Protected - 4+6 - -
01503 928 Protected - 4+6 - -
01503 929 Protected - 4+6 - -
01503 930 Protected - 4+6 - -
01503 931 Protected - 4+6 - -
01503 932 Protected - 4+6 - -
01503 933 Protected - 4+6 - -
01503 934 Protected - 4+6 - -
01503 935 Protected - 4+6 - -
01503 936 Protected - 4+6 - -
01503 937 Protected - 4+6 - -
01503 938 Protected - 4+6 - -
01503 939 Protected - 4+6 - -
01503 940 Protected - 4+6 - -
01503 941 Protected - 4+6 - -
01503 942 Protected - 4+6 - -
01503 943 Protected - 4+6 - -
01503 944 Protected - 4+6 - -
01503 945 Protected - 4+6 - -
01503 946 Protected - 4+6 - -
01503 947 Protected - 4+6 - -
01503 948 Protected - 4+6 - -
01503 949 Protected - 4+6 - -
01503 950 Protected - 4+6 - -
01503 951 Protected - 4+6 - -
01503 952 Protected - 4+6 - -
01503 953 Protected - 4+6 - -
01503 954 Protected - 4+6 - -
01503 955 Protected - 4+6 - -
01503 956 Protected - 4+6 - -
01503 957 Protected - 4+6 - -
01503 958 Protected - 4+6 - -
01503 959 Protected - 4+6 - -
01503 960 Protected - 4+6 - -
01503 961 Protected - 4+6 - -
01503 962 Protected - 4+6 - -
01503 963 Protected - 4+6 - -
01503 964 Protected - 4+6 - -
01503 965 Protected - 4+6 - -
01503 966 Protected - 4+6 - -
01503 967 Protected - 4+6 - -
01503 968 Protected - 4+6 - -
01503 969 Protected - 4+6 - -
01503 970 Protected - 4+6 - -
01503 971 Protected - 4+6 - -
01503 972 Protected - 4+6 - -
01503 973 Protected - 4+6 - -
01503 974 Protected - 4+6 - -
01503 975 Protected - 4+6 - -
01503 976 Protected - 4+6 - -
01503 977 Protected - 4+6 - -
01503 978 Protected - 4+6 - -
01503 979 Protected - 4+6 - -
01503 980 Protected - 4+6 - -
01503 981 Protected - 4+6 - -
01503 982 Protected - 4+6 - -
01503 983 Protected - 4+6 - -
01503 984 Protected - 4+6 - -
01503 985 Protected - 4+6 - -
01503 986 Protected - 4+6 - -
01503 987 Protected - 4+6 - -
01503 988 Protected - 4+6 - -
01503 989 Protected - 4+6 - -
01503 99 Protected - N/A - -