Code allocations for the 01581 STD code

Summary

  • Status
    • Allocated: 79
    • Free: 6
    • Free for National Dialling Only: 20
    • Protected: 382
  • Operators : 71
  • Latest change : October 2007
Click here for Status definitions
Have you received a call from a number beginning 01581? Get information on a full number beginning 01581, using our full UK number search.
Find out about the location and calling costs for 01581 numbers on our 01581 code page.

This page contains information about which telephone companies the various 01581 numbers are allocated to.

First Digits Status Communications Provider Number Length Notes Change
01581 00 Free for National Dialling Only - (0)+10 - -
01581 01 Free for National Dialling Only - (0)+10 - -
01581 02 Free for National Dialling Only - (0)+10 - -
01581 03 Free for National Dialling Only - (0)+10 - -
01581 04 Free for National Dialling Only - (0)+10 - -
01581 05 Free for National Dialling Only - (0)+10 - -
01581 06 Free for National Dialling Only - (0)+10 - -
01581 07 Free for National Dialling Only - (0)+10 - -
01581 08 Free for National Dialling Only - (0)+10 - -
01581 09 Free for National Dialling Only - (0)+10 - -
01581 10 Free for National Dialling Only - (0)+10 - -
01581 11 Free for National Dialling Only - (0)+10 - -
01581 12 Free for National Dialling Only - (0)+10 - -
01581 13 Free for National Dialling Only - (0)+10 - -
01581 14 Free for National Dialling Only - (0)+10 - -
01581 15 Free for National Dialling Only - (0)+10 - -
01581 16 Free for National Dialling Only - (0)+10 - -
01581 17 Free for National Dialling Only - (0)+10 - -
01581 18 Free for National Dialling Only - (0)+10 - -
01581 19 Free for National Dialling Only - (0)+10 - -
01581 20 Allocated BT 4+6 - 15/07/1994
01581 21 Allocated Frontier Systems Ltd 4+6 F-Digit '3' 27/09/2007
01581 22 Allocated Teledesign Ltd 4+6 F-Digit '2' 17/09/2007
01581 23 Allocated (aq) Limited trading as aql 4+6 - 03/10/2007
01581 24 Allocated InTechnology Plc 4+6 F-Digit '2' 04/10/2007
01581 25 Allocated VoIP-Un Limited 4+6 F-Digit '0' 31/10/2007
01581 26 Allocated Telephony Services Limited 4+6 F-Digit '2' 04/01/2008
01581 270 Protected - 4+6 - -
01581 271 Protected - 4+6 - -
01581 272 Protected - 4+6 - -
01581 273 Protected - 4+6 - -
01581 274 Protected - 4+6 - -
01581 275 Protected - 4+6 - -
01581 276 Protected - 4+6 - -
01581 277 Allocated Premium O Limited 4+6 - 14/01/2008
01581 278 Protected - 4+6 - -
01581 279 Protected - 4+6 - -
01581 280 Protected - 4+6 - -
01581 281 Protected - 4+6 - -
01581 282 Protected - 4+6 - -
01581 283 Protected - 4+6 - -
01581 284 Protected - 4+6 - -
01581 285 Protected - 4+6 - -
01581 286 Protected - 4+6 - -
01581 287 Protected - 4+6 - -
01581 288 Allocated TalkTalk Communications Limited 4+6 - 08/10/2007
01581 289 Allocated TalkTalk Communications Limited 4+6 - 08/10/2007
01581 29 Allocated Telecom2 Ltd 4+6 F-Digit '6' 11/09/2009
01581 30 Allocated BT 4+6 - 15/07/1994
01581 31 Allocated Timico Limited 4+6 F-Digit '8' 14/05/2008
01581 32 Allocated Nodemax Limited 4+6 F-Digit '0' 09/07/2008
01581 33 Allocated Net-Work Internet Ltd 4+6 F-Digit '3' 28/05/2008
01581 340 Allocated Voxbone SA 4+6 - 09/12/2011
01581 341 Protected - 4+6 - -
01581 342 Protected - 4+6 - -
01581 343 Protected - 4+6 - -
01581 344 Protected - 4+6 - -
01581 345 Protected - 4+6 - -
01581 346 Protected - 4+6 - -
01581 347 Protected - 4+6 - -
01581 348 Protected - 4+6 - -
01581 349 Protected - 4+6 - -
01581 35 Allocated Served Up Limited. 4+6 F-Digit '0' 16/10/2008
01581 36 Allocated Solutios Limited 4+6 F-Digit '2' 04/11/2008
01581 37 Allocated IPV6 Limited 4+6 F-Digit '0' 06/02/2009
01581 38 Allocated Mars Communications Limited 4+6 F-Digit '0' 05/02/2009
01581 39 Allocated Andrews & Arnold (Numbers) Ltd 4+6 F-Digit '0' 23/03/2009
01581 40 Allocated BT 4+6 - 15/07/1994
01581 41 Allocated Nexus Telecommunications Limited 4+6 F-Digit '0' 11/06/2009
01581 42 Allocated Mundio Mobile Limited 4+6 F-Digit '6' 01/07/2009
01581 43 Allocated CFL Communications Limited 4+6 F-Digit '0' 14/07/2009
01581 44 Allocated Danemere Street Creative 4+6 F-Digit '2' 22/07/2009
01581 450 Allocated Digitech Solutions Global Limited 4+6 - 27/04/2010
01581 451 Free - 4+6 - -
01581 452 Allocated VoiceHost Limited 4+6 - 05/10/2010
01581 453 Allocated Affiniti Integrated Solutions Ltd 4+6 - 02/12/2010
01581 454 Allocated Atomstream Limited 4+6 - 12/05/2010
01581 455 Allocated Suretec Systems Ltd 4+6 - 06/05/2010
01581 456 Allocated iNet Telecoms Ltd (Voipfone) 4+6 - 19/08/2010
01581 457 Allocated Telephone Box Limited 4+6 - 10/12/2010
01581 458 Allocated Windsor Telecom Plc 4+6 - 29/07/2010
01581 459 Allocated Cheers International Sales Limited 4+6 - 15/12/2010
01581 460 Allocated Phone Co-Op Numbering Limited 4+6 - 23/12/2010
01581 461 Allocated Globecom International Limited 4+6 - 04/01/2011
01581 462 Allocated Invosys Limited 4+6 - 17/01/2011
01581 463 Allocated Nexbridge Communications Limited 4+6 - 17/03/2011
01581 464 Allocated IP Base Ltd 4+6 - 03/02/2011
01581 465 Free - 4+6 - -
01581 466 Protected - 4+6 - -
01581 467 Allocated Barritec Limited 4+6 - 28/09/2011
01581 468 Allocated Invoco Ltd 4+6 - 03/11/2011
01581 469 Allocated Internexus Networks Limited 4+6 - 21/11/2011
01581 470 Allocated Bicom Systems EURL 4+6 - 01/03/2012
01581 471 Allocated API Telecom Limited 4+6 - 30/03/2012
01581 472 Allocated ICC Networks Ltd 4+6 - 17/04/2012
01581 473 Allocated IOVOX Limited 4+6 - 03/07/2012
01581 474 Allocated Broadcast Telecom Ltd 4+6 - 29/02/2012
01581 475 Allocated Hello Telecom (UK) PLC 4+6 - 20/07/2012
01581 476 Allocated Orbtalk Limited 4+6 - 07/02/2012
01581 477 Allocated Ziron (UK) Ltd 4+6 - 30/07/2012
01581 478 Allocated Simwood eSMS Limited 4+6 - 28/03/2012
01581 479 Allocated We Love Communications Limited 4+6 - 13/08/2012
01581 480 Allocated Minotaur Telecom Limited 4+6 - 05/02/2013
01581 481 Allocated Radius Communications Limited 4+6 - 09/01/2014
01581 482 Allocated Kalnet4u Ltd 4+6 - 23/05/2013
01581 483 Free - 4+6 - -
01581 484 Allocated iHub UK Ltd 4+6 - 16/08/2013
01581 485 Free - 4+6 - -
01581 486 Free - 4+6 - -
01581 487 Free - 4+6 - -
01581 488 Allocated Content Guru Ltd 4+6 - 12/10/2012
01581 489 Allocated XoverX Ltd 4+6 - 30/04/2013
01581 490 Protected - 4+6 - -
01581 491 Protected - 4+6 - -
01581 492 Protected - 4+6 - -
01581 493 Protected - 4+6 - -
01581 494 Protected - 4+6 - -
01581 495 Protected - 4+6 - -
01581 496 Protected - 4+6 - -
01581 497 Protected - 4+6 - -
01581 498 Protected - 4+6 - -
01581 499 Protected - 4+6 - -
01581 50 Allocated BT 4+6 - 15/07/1994
01581 510 Protected - 4+6 - -
01581 511 Protected - 4+6 - -
01581 512 Protected - 4+6 - -
01581 513 Protected - 4+6 - -
01581 514 Protected - 4+6 - -
01581 515 Protected - 4+6 - -
01581 516 Protected - 4+6 - -
01581 517 Protected - 4+6 - -
01581 518 Protected - 4+6 - -
01581 519 Protected - 4+6 - -
01581 520 Allocated Inclarity Communications Ltd 4+6 - 24/04/2006
01581 521 Allocated Inclarity Communications Ltd 4+6 - 24/04/2006
01581 522 Allocated Inclarity Communications Ltd 4+6 - 24/04/2006
01581 523 Protected - 4+6 - -
01581 524 Protected - 4+6 - -
01581 525 Allocated Inclarity Communications Ltd 4+6 - 24/04/2006
01581 526 Protected - 4+6 - -
01581 527 Protected - 4+6 - -
01581 528 Protected - 4+6 - -
01581 529 Protected - 4+6 - -
01581 530 Protected - 4+6 - -
01581 531 Protected - 4+6 - -
01581 532 Protected - 4+6 - -
01581 533 Protected - 4+6 - -
01581 534 Protected - 4+6 - -
01581 535 Protected - 4+6 - -
01581 536 Protected - 4+6 - -
01581 537 Protected - 4+6 - -
01581 538 Protected - 4+6 - -
01581 539 Protected - 4+6 - -
01581 54 Allocated TTNC Limited 4+6 F-Digits '0,1,2,3,4,5,6,7,8,9' 18/09/2006
01581 55 Allocated Net Solutions Europe Limited 4+6 F-Digit '5' 27/02/2006
01581 560 Protected - 4+6 - -
01581 561 Protected - 4+6 - -
01581 562 Protected - 4+6 - -
01581 563 Protected - 4+6 - -
01581 564 Protected - 4+6 - -
01581 565 Protected - 4+6 - -
01581 566 Protected - 4+6 - -
01581 567 Protected - 4+6 - -
01581 568 Protected - 4+6 - -
01581 569 Protected - 4+6 - -
01581 570 Protected - 4+6 - -
01581 571 Protected - 4+6 - -
01581 572 Protected - 4+6 - -
01581 573 Protected - 4+6 - -
01581 574 Protected - 4+6 - -
01581 575 Protected - 4+6 - -
01581 576 Protected - 4+6 - -
01581 577 Allocated Spitfire Network Services Ltd 4+6 - 11/11/2011
01581 578 Protected - 4+6 - -
01581 579 Protected - 4+6 - -
01581 58 Allocated TelNG Limited 4+6 F-Digit '2' 28/02/2007
01581 59 Allocated Localphone Limited 4+6 F-Digit '0' 10/05/2007
01581 60 Allocated BT 4+6 - 15/07/1994
01581 61 Allocated Vodafone Ltd (Energis) 4+6 - 26/05/2006
01581 62 Allocated BT 4+6 - 30/11/1999
01581 63 Allocated Magrathea Telecommunications Limited 4+6 - 24/09/2004
01581 640 Allocated Linear Telecoms Limited 4+6 - 14/10/2010
01581 641 Protected - 4+6 - -
01581 642 Protected - 4+6 - -
01581 643 Protected - 4+6 - -
01581 644 Protected - 4+6 - -
01581 645 Protected - 4+6 - -
01581 646 Protected - 4+6 - -
01581 647 Protected - 4+6 - -
01581 648 Protected - 4+6 - -
01581 649 Protected - 4+6 - -
01581 65 Allocated Gamma Telecom Holdings Ltd 4+6 - 24/05/2005
01581 66 Allocated Edge Telecom Limited 4+6 - 07/04/2005
01581 67 Allocated FleXtel Limited 4+6 - 24/10/2005
01581 68 Allocated Barritel Limited 4+6 F-Digit '2' 21/06/2007
01581 69 Allocated Syntec Limited 4+6 - 20/12/2005
01581 700 Protected - 4+6 - -
01581 701 Protected - 4+6 - -
01581 702 Protected - 4+6 - -
01581 703 Protected - 4+6 - -
01581 704 Protected - 4+6 - -
01581 705 Protected - 4+6 - -
01581 706 Protected - 4+6 - -
01581 707 Protected - 4+6 - -
01581 708 Protected - 4+6 - -
01581 709 Protected - 4+6 - -
01581 710 Protected - 4+6 - -
01581 711 Protected - 4+6 - -
01581 712 Protected - 4+6 - -
01581 713 Protected - 4+6 - -
01581 714 Protected - 4+6 - -
01581 715 Protected - 4+6 - -
01581 716 Protected - 4+6 - -
01581 717 Protected - 4+6 - -
01581 718 Protected - 4+6 - -
01581 719 Protected - 4+6 - -
01581 720 Protected - 4+6 - -
01581 721 Protected - 4+6 - -
01581 722 Protected - 4+6 - -
01581 723 Protected - 4+6 - -
01581 724 Protected - 4+6 - -
01581 725 Protected - 4+6 - -
01581 726 Protected - 4+6 - -
01581 727 Protected - 4+6 - -
01581 728 Protected - 4+6 - -
01581 729 Protected - 4+6 - -
01581 730 Protected - 4+6 - -
01581 731 Protected - 4+6 - -
01581 732 Protected - 4+6 - -
01581 733 Protected - 4+6 - -
01581 734 Protected - 4+6 - -
01581 735 Protected - 4+6 - -
01581 736 Protected - 4+6 - -
01581 737 Protected - 4+6 - -
01581 738 Protected - 4+6 - -
01581 739 Protected - 4+6 - -
01581 740 Protected - 4+6 - -
01581 741 Protected - 4+6 - -
01581 742 Protected - 4+6 - -
01581 743 Protected - 4+6 - -
01581 744 Protected - 4+6 - -
01581 745 Protected - 4+6 - -
01581 746 Protected - 4+6 - -
01581 747 Protected - 4+6 - -
01581 748 Protected - 4+6 - -
01581 749 Protected - 4+6 - -
01581 750 Protected - 4+6 - -
01581 751 Protected - 4+6 - -
01581 752 Protected - 4+6 - -
01581 753 Protected - 4+6 - -
01581 754 Protected - 4+6 - -
01581 755 Protected - 4+6 - -
01581 756 Protected - 4+6 - -
01581 757 Protected - 4+6 - -
01581 758 Protected - 4+6 - -
01581 759 Protected - 4+6 - -
01581 760 Protected - 4+6 - -
01581 761 Protected - 4+6 - -
01581 762 Protected - 4+6 - -
01581 763 Protected - 4+6 - -
01581 764 Protected - 4+6 - -
01581 765 Protected - 4+6 - -
01581 766 Protected - 4+6 - -
01581 767 Protected - 4+6 - -
01581 768 Protected - 4+6 - -
01581 769 Protected - 4+6 - -
01581 770 Protected - 4+6 - -
01581 771 Protected - 4+6 - -
01581 772 Protected - 4+6 - -
01581 773 Protected - 4+6 - -
01581 774 Protected - 4+6 - -
01581 775 Protected - 4+6 - -
01581 776 Protected - 4+6 - -
01581 777 Protected - 4+6 - -
01581 778 Protected - 4+6 - -
01581 779 Protected - 4+6 - -
01581 780 Protected - 4+6 - -
01581 781 Protected - 4+6 - -
01581 782 Protected - 4+6 - -
01581 783 Protected - 4+6 - -
01581 784 Protected - 4+6 - -
01581 785 Protected - 4+6 - -
01581 786 Protected - 4+6 - -
01581 787 Protected - 4+6 - -
01581 788 Protected - 4+6 - -
01581 789 Protected - 4+6 - -
01581 790 Protected - 4+6 - -
01581 791 Protected - 4+6 - -
01581 792 Protected - 4+6 - -
01581 793 Protected - 4+6 - -
01581 794 Protected - 4+6 - -
01581 795 Protected - 4+6 - -
01581 796 Protected - 4+6 - -
01581 797 Protected - 4+6 - -
01581 798 Protected - 4+6 - -
01581 799 Protected - 4+6 - -
01581 800 Protected - 4+6 - -
01581 801 Protected - 4+6 - -
01581 802 Protected - 4+6 - -
01581 803 Protected - 4+6 - -
01581 804 Protected - 4+6 - -
01581 805 Protected - 4+6 - -
01581 806 Protected - 4+6 - -
01581 807 Protected - 4+6 - -
01581 808 Protected - 4+6 - -
01581 809 Protected - 4+6 - -
01581 810 Protected - 4+6 - -
01581 811 Protected - 4+6 - -
01581 812 Protected - 4+6 - -
01581 813 Protected - 4+6 - -
01581 814 Protected - 4+6 - -
01581 815 Protected - 4+6 - -
01581 816 Protected - 4+6 - -
01581 817 Protected - 4+6 - -
01581 818 Protected - 4+6 - -
01581 819 Protected - 4+6 - -
01581 820 Protected - 4+6 - -
01581 821 Protected - 4+6 - -
01581 822 Protected - 4+6 - -
01581 823 Protected - 4+6 - -
01581 824 Protected - 4+6 - -
01581 825 Protected - 4+6 - -
01581 826 Protected - 4+6 - -
01581 827 Protected - 4+6 - -
01581 828 Protected - 4+6 - -
01581 829 Protected - 4+6 - -
01581 830 Protected - 4+6 - -
01581 831 Protected - 4+6 - -
01581 832 Protected - 4+6 - -
01581 833 Protected - 4+6 - -
01581 834 Protected - 4+6 - -
01581 835 Protected - 4+6 - -
01581 836 Protected - 4+6 - -
01581 837 Protected - 4+6 - -
01581 838 Protected - 4+6 - -
01581 839 Protected - 4+6 - -
01581 840 Protected - 4+6 - -
01581 841 Protected - 4+6 - -
01581 842 Protected - 4+6 - -
01581 843 Protected - 4+6 - -
01581 844 Protected - 4+6 - -
01581 845 Protected - 4+6 - -
01581 846 Protected - 4+6 - -
01581 847 Protected - 4+6 - -
01581 848 Protected - 4+6 - -
01581 849 Protected - 4+6 - -
01581 850 Protected - 4+6 - -
01581 851 Protected - 4+6 - -
01581 852 Protected - 4+6 - -
01581 853 Protected - 4+6 - -
01581 854 Protected - 4+6 - -
01581 855 Protected - 4+6 - -
01581 856 Protected - 4+6 - -
01581 857 Protected - 4+6 - -
01581 858 Protected - 4+6 - -
01581 859 Protected - 4+6 - -
01581 860 Protected - 4+6 - -
01581 861 Protected - 4+6 - -
01581 862 Protected - 4+6 - -
01581 863 Protected - 4+6 - -
01581 864 Protected - 4+6 - -
01581 865 Protected - 4+6 - -
01581 866 Protected - 4+6 - -
01581 867 Protected - 4+6 - -
01581 868 Protected - 4+6 - -
01581 869 Protected - 4+6 - -
01581 870 Protected - 4+6 - -
01581 871 Protected - 4+6 - -
01581 872 Protected - 4+6 - -
01581 873 Protected - 4+6 - -
01581 874 Protected - 4+6 - -
01581 875 Protected - 4+6 - -
01581 876 Protected - 4+6 - -
01581 877 Protected - 4+6 - -
01581 878 Protected - 4+6 - -
01581 879 Protected - 4+6 - -
01581 880 Protected - 4+6 - -
01581 881 Protected - 4+6 - -
01581 882 Protected - 4+6 - -
01581 883 Protected - 4+6 - -
01581 884 Protected - 4+6 - -
01581 885 Protected - 4+6 - -
01581 886 Protected - 4+6 - -
01581 887 Protected - 4+6 - -
01581 888 Protected - 4+6 - -
01581 889 Protected - 4+6 - -
01581 890 Protected - 4+6 - -
01581 891 Protected - 4+6 - -
01581 892 Protected - 4+6 - -
01581 893 Protected - 4+6 - -
01581 894 Protected - 4+6 - -
01581 895 Protected - 4+6 - -
01581 896 Protected - 4+6 - -
01581 897 Protected - 4+6 - -
01581 898 Protected - 4+6 - -
01581 899 Protected - 4+6 - -
01581 900 Protected - 4+6 - -
01581 901 Protected - 4+6 - -
01581 902 Protected - 4+6 - -
01581 903 Protected - 4+6 - -
01581 904 Protected - 4+6 - -
01581 905 Protected - 4+6 - -
01581 906 Protected - 4+6 - -
01581 907 Protected - 4+6 - -
01581 908 Protected - 4+6 - -
01581 909 Protected - 4+6 - -
01581 910 Protected - 4+6 - -
01581 911 Protected - 4+6 - -
01581 912 Protected - 4+6 - -
01581 913 Protected - 4+6 - -
01581 914 Protected - 4+6 - -
01581 915 Protected - 4+6 - -
01581 916 Protected - 4+6 - -
01581 917 Protected - 4+6 - -
01581 918 Protected - 4+6 - -
01581 919 Protected - 4+6 - -
01581 920 Protected - 4+6 - -
01581 921 Protected - 4+6 - -
01581 922 Protected - 4+6 - -
01581 923 Protected - 4+6 - -
01581 924 Protected - 4+6 - -
01581 925 Protected - 4+6 - -
01581 926 Protected - 4+6 - -
01581 927 Protected - 4+6 - -
01581 928 Protected - 4+6 - -
01581 929 Protected - 4+6 - -
01581 930 Protected - 4+6 - -
01581 931 Protected - 4+6 - -
01581 932 Protected - 4+6 - -
01581 933 Protected - 4+6 - -
01581 934 Protected - 4+6 - -
01581 935 Protected - 4+6 - -
01581 936 Protected - 4+6 - -
01581 937 Protected - 4+6 - -
01581 938 Protected - 4+6 - -
01581 939 Protected - 4+6 - -
01581 940 Protected - 4+6 - -
01581 941 Protected - 4+6 - -
01581 942 Protected - 4+6 - -
01581 943 Protected - 4+6 - -
01581 944 Protected - 4+6 - -
01581 945 Protected - 4+6 - -
01581 946 Protected - 4+6 - -
01581 947 Protected - 4+6 - -
01581 948 Protected - 4+6 - -
01581 949 Protected - 4+6 - -
01581 950 Protected - 4+6 - -
01581 951 Protected - 4+6 - -
01581 952 Protected - 4+6 - -
01581 953 Protected - 4+6 - -
01581 954 Protected - 4+6 - -
01581 955 Protected - 4+6 - -
01581 956 Protected - 4+6 - -
01581 957 Protected - 4+6 - -
01581 958 Protected - 4+6 - -
01581 959 Protected - 4+6 - -
01581 960 Protected - 4+6 - -
01581 961 Protected - 4+6 - -
01581 962 Protected - 4+6 - -
01581 963 Protected - 4+6 - -
01581 964 Protected - 4+6 - -
01581 965 Protected - 4+6 - -
01581 966 Protected - 4+6 - -
01581 967 Protected - 4+6 - -
01581 968 Protected - 4+6 - -
01581 969 Protected - 4+6 - -
01581 970 Protected - 4+6 - -
01581 971 Protected - 4+6 - -
01581 972 Protected - 4+6 - -
01581 973 Protected - 4+6 - -
01581 974 Protected - 4+6 - -
01581 975 Protected - 4+6 - -
01581 976 Protected - 4+6 - -
01581 977 Protected - 4+6 - -
01581 978 Protected - 4+6 - -
01581 979 Protected - 4+6 - -
01581 980 Protected - 4+6 - -
01581 981 Protected - 4+6 - -
01581 982 Protected - 4+6 - -
01581 983 Protected - 4+6 - -
01581 984 Protected - 4+6 - -
01581 985 Protected - 4+6 - -
01581 986 Protected - 4+6 - -
01581 987 Protected - 4+6 - -
01581 988 Protected - 4+6 - -
01581 989 Protected - 4+6 - -
01581 99 Protected - N/A - -