Code allocations for the 01531 STD code

Summary

  • Status
    • Allocated: 102
    • Free: 11
    • Free for National Dialling Only: 20
    • Protected: 291
  • Operators : 84
  • Latest change : October 2007
Click here for Status definitions
Have you received a call from a number beginning 01531? Get information on a full number beginning 01531, using our full UK number search.
Find out about the location and calling costs for 01531 numbers on our 01531 code page.

This page contains information about which telephone companies the various 01531 numbers are allocated to.

First Digits Status Communications Provider Number Length Notes Change
01531 00 Free for National Dialling Only - (0)+10 - -
01531 01 Free for National Dialling Only - (0)+10 - -
01531 02 Free for National Dialling Only - (0)+10 - -
01531 03 Free for National Dialling Only - (0)+10 - -
01531 04 Free for National Dialling Only - (0)+10 - -
01531 05 Free for National Dialling Only - (0)+10 - -
01531 06 Free for National Dialling Only - (0)+10 - -
01531 07 Free for National Dialling Only - (0)+10 - -
01531 08 Free for National Dialling Only - (0)+10 - -
01531 09 Free for National Dialling Only - (0)+10 - -
01531 10 Free for National Dialling Only - (0)+10 - -
01531 11 Free for National Dialling Only - (0)+10 - -
01531 12 Free for National Dialling Only - (0)+10 - -
01531 13 Free for National Dialling Only - (0)+10 - -
01531 14 Free for National Dialling Only - (0)+10 - -
01531 15 Free for National Dialling Only - (0)+10 - -
01531 16 Free for National Dialling Only - (0)+10 - -
01531 17 Free for National Dialling Only - (0)+10 - -
01531 18 Free for National Dialling Only - (0)+10 - -
01531 19 Free for National Dialling Only - (0)+10 - -
01531 20 Allocated (aq) Limited trading as aql 4+6 F-Digit '0' 19/10/2011
01531 21 Allocated Frontier Systems Ltd 4+6 F-Digit '3' 27/09/2007
01531 22 Allocated VoIP-Un Limited 4+6 F-Digit '0' 31/10/2007
01531 23 Allocated Telephony Services Limited 4+6 F-Digit '2' 04/01/2008
01531 240 Protected - 4+6 - -
01531 241 Protected - 4+6 - -
01531 242 Protected - 4+6 - -
01531 243 Protected - 4+6 - -
01531 244 Protected - 4+6 - -
01531 245 Protected - 4+6 - -
01531 246 Protected - 4+6 - -
01531 247 Protected - 4+6 - -
01531 248 Allocated TalkTalk Communications Limited 4+6 - 11/12/2007
01531 249 Allocated TalkTalk Communications Limited 4+6 - 11/12/2007
01531 250 Allocated PTGI International Carrier Services Ltd 4+6 - 30/08/2011
01531 251 Allocated PTGI International Carrier Services Ltd 4+6 - 30/08/2011
01531 252 Protected - 4+6 - -
01531 253 Protected - 4+6 - -
01531 254 Protected - 4+6 - -
01531 255 Protected - 4+6 - -
01531 256 Protected - 4+6 - -
01531 257 Protected - 4+6 - -
01531 258 Protected - 4+6 - -
01531 259 Protected - 4+6 - -
01531 26 Allocated Timico Limited 4+6 F-Digit '8' 01/05/2008
01531 270 Protected - 4+6 - -
01531 271 Protected - 4+6 - -
01531 272 Protected - 4+6 - -
01531 273 Protected - 4+6 - -
01531 274 Protected - 4+6 - -
01531 275 Protected - 4+6 - -
01531 276 Protected - 4+6 - -
01531 277 Allocated Premium O Limited 4+6 - 10/01/2008
01531 278 Protected - 4+6 - -
01531 279 Protected - 4+6 - -
01531 28 Allocated Nationwide Telephone Assistance Ltd 4+6 F-Digit '0' 02/10/2007
01531 29 Allocated Net-Work Internet Ltd 4+6 F-Digit '0' 24/09/2007
01531 300 Protected - 4+6 - -
01531 301 Protected - 4+6 - -
01531 302 Allocated Inclarity Communications Ltd 4+6 - 01/02/2006
01531 303 Protected - 4+6 - -
01531 304 Protected - 4+6 - -
01531 305 Protected - 4+6 - -
01531 306 Protected - 4+6 - -
01531 307 Protected - 4+6 - -
01531 308 Protected - 4+6 - -
01531 309 Protected - 4+6 - -
01531 31 Allocated Served Up Limited. 4+6 F-Digit '1' 27/05/2008
01531 320 Protected - 4+6 - -
01531 321 Protected - 4+6 - -
01531 322 Protected - 4+6 - -
01531 323 Protected - 4+6 - -
01531 324 Protected - 4+6 - -
01531 325 Protected - 4+6 - -
01531 326 Protected - 4+6 - -
01531 327 Protected - 4+6 - -
01531 328 Protected - 4+6 - -
01531 329 Protected - 4+6 - -
01531 33 Allocated Net Solutions Europe Limited 4+6 F-Digit '3' 22/03/2006
01531 34 Allocated TTNC Limited 4+6 F-Digit '0,1,2,3,4,5,6,7,8,9' 08/09/2006
01531 350 Protected - 4+6 - -
01531 351 Protected - 4+6 - -
01531 352 Protected - 4+6 - -
01531 353 Protected - 4+6 - -
01531 354 Protected - 4+6 - -
01531 355 Protected - 4+6 - -
01531 356 Protected - 4+6 - -
01531 357 Protected - 4+6 - -
01531 358 Protected - 4+6 - -
01531 359 Protected - 4+6 - -
01531 36 Allocated TelNG Limited 4+6 F-Digit '2' 27/02/2007
01531 370 Protected - 4+6 - -
01531 371 Protected - 4+6 - -
01531 372 Protected - 4+6 - -
01531 373 Protected - 4+6 - -
01531 374 Protected - 4+6 - -
01531 375 Protected - 4+6 - -
01531 376 Protected - 4+6 - -
01531 377 Allocated Spitfire Network Services Ltd 4+6 - 10/11/2011
01531 378 Protected - 4+6 - -
01531 379 Protected - 4+6 - -
01531 38 Allocated Localphone Limited 4+6 F-Digit '0' 04/05/2007
01531 39 Allocated Teledesign Ltd 4+6 F-Digit '2' 10/09/2007
01531 40 Allocated Telecom2 Ltd 4+6 F-Digit '6' 10/09/2009
01531 41 Allocated Nodemax Limited 4+6 F-Digit '0' 17/07/2008
01531 42 Allocated Starcomm Ltd 4+6 F-Digit '0' 19/09/2008
01531 430 Allocated Voxbone SA 4+6 - 09/12/2011
01531 431 Protected - 4+6 - -
01531 432 Protected - 4+6 - -
01531 433 Protected - 4+6 - -
01531 434 Protected - 4+6 - -
01531 435 Protected - 4+6 - -
01531 436 Protected - 4+6 - -
01531 437 Protected - 4+6 - -
01531 438 Protected - 4+6 - -
01531 439 Protected - 4+6 - -
01531 44 Allocated 3C Limited 4+6 F-Digit '2' 30/09/2008
01531 45 Allocated Solutios Limited 4+6 F-Digit '2' 27/10/2008
01531 46 Allocated Mars Communications Limited 4+6 F-Digit '0' 05/02/2009
01531 47 Allocated IPV6 Limited 4+6 F-Digit '0' 12/02/2009
01531 48 Allocated Andrews & Arnold (Numbers) Ltd 4+6 F-Digit '0' 13/03/2009
01531 49 Allocated Nexus Telecommunications Limited 4+6 F-Digit '0' 11/06/2009
01531 50 Allocated X-Pilot Limited 4+6 F-Digit '0' 17/06/2009
01531 51 Allocated Mundio Mobile Limited 4+6 F-Digit '6' 30/06/2009
01531 52 Allocated CFL Communications Limited 4+6 F-Digit '0' 13/07/2009
01531 53 Allocated Danemere Street Creative 4+6 F-Digit '2' 21/07/2009
01531 54 Allocated Known Communications Limited 4+6 F-Digit '0' 18/09/2009
01531 550 Allocated Digitech Solutions Global Limited 4+6 - 27/04/2010
01531 551 Allocated Calltracks Limited 4+6 - 08/07/2010
01531 552 Allocated VoiceHost Limited 4+6 - 05/10/2010
01531 553 Allocated Windsor Telecom Plc 4+6 - 21/07/2010
01531 554 Allocated Atomstream Limited 4+6 - 14/05/2010
01531 555 Allocated Suretec Systems Ltd 4+6 - 06/05/2010
01531 556 Allocated Telappliant Ltd 4+6 - 16/06/2010
01531 557 Allocated iNet Telecoms Ltd (Voipfone) 4+6 - 19/08/2010
01531 558 Allocated Numbergroup Network Ltd 4+6 - 04/11/2010
01531 559 Allocated Affiniti Integrated Solutions Ltd 4+6 - 05/11/2010
01531 560 Allocated Telephone Box Limited 4+6 - 10/12/2010
01531 561 Allocated Cheers International Sales Limited 4+6 - 14/12/2010
01531 562 Allocated Phone Co-Op Numbering Limited 4+6 - 22/12/2010
01531 563 Allocated Globecom International Limited 4+6 - 04/01/2011
01531 564 Allocated Invosys Limited 4+6 - 17/01/2011
01531 565 Allocated Nexbridge Communications Limited 4+6 - 16/03/2011
01531 566 Allocated IP Base Ltd 4+6 - 03/02/2011
01531 567 Allocated Orbtalk Limited 4+6 - 19/09/2011
01531 568 Free - 4+6 - -
01531 569 Allocated TalkTalk Communications Limited 4+6 - 19/09/2011
01531 570 Allocated Barritec Limited 4+6 - 26/09/2011
01531 571 Allocated Invoco Ltd 4+6 - 26/09/2011
01531 572 Allocated Hello Telecom (UK) PLC 4+6 - 11/11/2011
01531 573 Allocated Internexus Networks Limited 4+6 - 21/11/2011
01531 574 Allocated API Telecom Limited 4+6 - 30/03/2012
01531 575 Allocated Broadcast Telecom Ltd 4+6 - 21/02/2012
01531 576 Allocated ICC Networks Ltd 4+6 - 17/04/2012
01531 577 Allocated IOVOX Limited 4+6 - 03/07/2012
01531 578 Allocated Bicom Systems EURL 4+6 - 05/03/2012
01531 579 Allocated British Sky Broadcasting Limited 4+6 - 06/07/2012
01531 580 Free - 4+6 - -
01531 581 Free - 4+6 - -
01531 582 Free - 4+6 - -
01531 583 Free - 4+6 - -
01531 584 Free - 4+6 - -
01531 585 Free - 4+6 - -
01531 586 Free - 4+6 - -
01531 587 Free - 4+6 - -
01531 588 Allocated Radius Communications Limited 4+6 - 08/01/2014
01531 589 Free - 4+6 - -
01531 590 Allocated Ziron (UK) Ltd 4+6 - 30/07/2012
01531 591 Allocated i-Net Communications Group Plc 4+6 - 25/06/2013
01531 592 Allocated Kalnet4u Ltd 4+6 - 23/05/2013
01531 593 Free - 4+6 - -
01531 594 Allocated Minotaur Telecom Limited 4+6 - 18/12/2012
01531 595 Allocated Content Guru Ltd 4+6 - 12/10/2012
01531 596 Allocated iHub UK Ltd 4+6 - 16/08/2013
01531 597 Allocated XoverX Ltd 4+6 - 30/04/2013
01531 598 Allocated Simwood eSMS Limited 4+6 - 05/04/2013
01531 599 Allocated We Love Communications Limited 4+6 - 13/08/2012
01531 600 Allocated Linear Telecoms Limited 4+6 - 12/10/2010
01531 601 Protected - 4+6 - -
01531 602 Protected - 4+6 - -
01531 603 Protected - 4+6 - -
01531 604 Protected - 4+6 - -
01531 605 Protected - 4+6 - -
01531 606 Protected - 4+6 - -
01531 607 Protected - 4+6 - -
01531 608 Protected - 4+6 - -
01531 609 Protected - 4+6 - -
01531 61 Allocated BT 4+6 - 12/10/1995
01531 62 Allocated Vodafone Ltd (C&W) 4+6 F-Digits '0,1,2,3,4,5,6,7,8,9' 15/02/2010
01531 63 Allocated BT 4+6 - 15/07/1994
01531 64 Allocated BT 4+6 - 15/07/1994
01531 65 Allocated BT 4+6 - 15/07/1994
01531 66 Allocated BT 4+6 - 15/07/1994
01531 67 Allocated BT 4+6 - 15/07/1994
01531 68 Allocated Vodafone Ltd (Thus) 4+6 - 21/03/2000
01531 69 Allocated Barritel Limited 4+6 F-Digit '2' 15/08/2006
01531 700 Protected - 4+6 - -
01531 701 Protected - 4+6 - -
01531 702 Protected - 4+6 - -
01531 703 Protected - 4+6 - -
01531 704 Protected - 4+6 - -
01531 705 Protected - 4+6 - -
01531 706 Protected - 4+6 - -
01531 707 Protected - 4+6 - -
01531 708 Protected - 4+6 - -
01531 709 Protected - 4+6 - -
01531 710 Protected - 4+6 - -
01531 711 Protected - 4+6 - -
01531 712 Protected - 4+6 - -
01531 713 Protected - 4+6 - -
01531 714 Protected - 4+6 - -
01531 715 Protected - 4+6 - -
01531 716 Protected - 4+6 - -
01531 717 Protected - 4+6 - -
01531 718 Protected - 4+6 - -
01531 719 Protected - 4+6 - -
01531 720 Protected - 4+6 - -
01531 721 Protected - 4+6 - -
01531 722 Protected - 4+6 - -
01531 723 Protected - 4+6 - -
01531 724 Protected - 4+6 - -
01531 725 Protected - 4+6 - -
01531 726 Protected - 4+6 - -
01531 727 Protected - 4+6 - -
01531 728 Protected - 4+6 - -
01531 729 Protected - 4+6 - -
01531 730 Protected - 4+6 - -
01531 731 Protected - 4+6 - -
01531 732 Protected - 4+6 - -
01531 733 Protected - 4+6 - -
01531 734 Protected - 4+6 - -
01531 735 Protected - 4+6 - -
01531 736 Protected - 4+6 - -
01531 737 Protected - 4+6 - -
01531 738 Protected - 4+6 - -
01531 739 Protected - 4+6 - -
01531 740 Protected - 4+6 - -
01531 741 Protected - 4+6 - -
01531 742 Protected - 4+6 - -
01531 743 Protected - 4+6 - -
01531 744 Protected - 4+6 - -
01531 745 Protected - 4+6 - -
01531 746 Protected - 4+6 - -
01531 747 Protected - 4+6 - -
01531 748 Protected - 4+6 - -
01531 749 Protected - 4+6 - -
01531 750 Protected - 4+6 - -
01531 751 Protected - 4+6 - -
01531 752 Protected - 4+6 - -
01531 753 Protected - 4+6 - -
01531 754 Protected - 4+6 - -
01531 755 Protected - 4+6 - -
01531 756 Protected - 4+6 - -
01531 757 Protected - 4+6 - -
01531 758 Protected - 4+6 - -
01531 759 Protected - 4+6 - -
01531 760 Protected - 4+6 - -
01531 761 Protected - 4+6 - -
01531 762 Protected - 4+6 - -
01531 763 Protected - 4+6 - -
01531 764 Protected - 4+6 - -
01531 765 Protected - 4+6 - -
01531 766 Protected - 4+6 - -
01531 767 Protected - 4+6 - -
01531 768 Protected - 4+6 - -
01531 769 Protected - 4+6 - -
01531 770 Protected - 4+6 - -
01531 771 Protected - 4+6 - -
01531 772 Protected - 4+6 - -
01531 773 Protected - 4+6 - -
01531 774 Protected - 4+6 - -
01531 775 Protected - 4+6 - -
01531 776 Protected - 4+6 - -
01531 777 Protected - 4+6 - -
01531 778 Protected - 4+6 - -
01531 779 Protected - 4+6 - -
01531 780 Protected - 4+6 - -
01531 781 Protected - 4+6 - -
01531 782 Protected - 4+6 - -
01531 783 Protected - 4+6 - -
01531 784 Protected - 4+6 - -
01531 785 Protected - 4+6 - -
01531 786 Protected - 4+6 - -
01531 787 Protected - 4+6 - -
01531 788 Protected - 4+6 - -
01531 789 Protected - 4+6 - -
01531 790 Protected - 4+6 - -
01531 791 Protected - 4+6 - -
01531 792 Protected - 4+6 - -
01531 793 Protected - 4+6 - -
01531 794 Protected - 4+6 - -
01531 795 Protected - 4+6 - -
01531 796 Protected - 4+6 - -
01531 797 Protected - 4+6 - -
01531 798 Protected - 4+6 - -
01531 799 Protected - 4+6 - -
01531 800 Allocated Gamma Telecom Holdings Ltd 4+6 - 18/04/2005
01531 801 Allocated Gamma Telecom Holdings Ltd 4+6 - 18/04/2005
01531 802 Allocated Gamma Telecom Holdings Ltd 4+6 - 18/04/2005
01531 803 Protected - 4+6 - -
01531 804 Protected - 4+6 - -
01531 805 Allocated Gamma Telecom Holdings Ltd 4+6 - 18/04/2005
01531 806 Allocated Gamma Telecom Holdings Ltd 4+6 - 18/04/2005
01531 807 Allocated Gamma Telecom Holdings Ltd 4+6 - 18/04/2005
01531 808 Allocated Gamma Telecom Holdings Ltd 4+6 - 18/04/2005
01531 809 Allocated Gamma Telecom Holdings Ltd 4+6 - 18/04/2005
01531 81 Allocated Edge Telecom Limited 4+6 - 06/04/2005
01531 82 Allocated BT 4+6 - 15/07/1994
01531 83 Allocated InTechnology Plc 4+6 - 08/06/2007
01531 84 Allocated FleXtel Limited 4+6 - 21/10/2005
01531 850 Allocated Six Degrees Unified Comms Limited 4+6 - 25/11/2005
01531 851 Protected - 4+6 - -
01531 852 Protected - 4+6 - -
01531 853 Protected - 4+6 - -
01531 854 Allocated Six Degrees Unified Comms Limited 4+6 - 25/11/2005
01531 855 Protected - 4+6 - -
01531 856 Protected - 4+6 - -
01531 857 Protected - 4+6 - -
01531 858 Protected - 4+6 - -
01531 859 Protected - 4+6 - -
01531 860 Allocated Digitech Solutions Global Limited 4+6 - 07/09/2010
01531 861 Protected - 4+6 - -
01531 862 Protected - 4+6 - -
01531 863 Protected - 4+6 - -
01531 864 Protected - 4+6 - -
01531 865 Protected - 4+6 - -
01531 866 Protected - 4+6 - -
01531 867 Protected - 4+6 - -
01531 868 Protected - 4+6 - -
01531 869 Protected - 4+6 - -
01531 87 Allocated Syntec Limited 4+6 - 07/12/2005
01531 88 Allocated Magrathea Telecommunications Limited 4+6 - 24/09/2004
01531 89 Allocated BT 4+6 - 15/07/1994
01531 900 Protected - 4+6 - -
01531 901 Protected - 4+6 - -
01531 902 Protected - 4+6 - -
01531 903 Protected - 4+6 - -
01531 904 Protected - 4+6 - -
01531 905 Protected - 4+6 - -
01531 906 Protected - 4+6 - -
01531 907 Protected - 4+6 - -
01531 908 Protected - 4+6 - -
01531 909 Protected - 4+6 - -
01531 910 Protected - 4+6 - -
01531 911 Protected - 4+6 - -
01531 912 Protected - 4+6 - -
01531 913 Protected - 4+6 - -
01531 914 Protected - 4+6 - -
01531 915 Protected - 4+6 - -
01531 916 Protected - 4+6 - -
01531 917 Protected - 4+6 - -
01531 918 Protected - 4+6 - -
01531 919 Protected - 4+6 - -
01531 920 Protected - 4+6 - -
01531 921 Protected - 4+6 - -
01531 922 Protected - 4+6 - -
01531 923 Protected - 4+6 - -
01531 924 Protected - 4+6 - -
01531 925 Protected - 4+6 - -
01531 926 Protected - 4+6 - -
01531 927 Protected - 4+6 - -
01531 928 Protected - 4+6 - -
01531 929 Protected - 4+6 - -
01531 930 Protected - 4+6 - -
01531 931 Protected - 4+6 - -
01531 932 Protected - 4+6 - -
01531 933 Protected - 4+6 - -
01531 934 Protected - 4+6 - -
01531 935 Protected - 4+6 - -
01531 936 Protected - 4+6 - -
01531 937 Protected - 4+6 - -
01531 938 Protected - 4+6 - -
01531 939 Protected - 4+6 - -
01531 940 Protected - 4+6 - -
01531 941 Protected - 4+6 - -
01531 942 Protected - 4+6 - -
01531 943 Protected - 4+6 - -
01531 944 Protected - 4+6 - -
01531 945 Protected - 4+6 - -
01531 946 Protected - 4+6 - -
01531 947 Protected - 4+6 - -
01531 948 Protected - 4+6 - -
01531 949 Protected - 4+6 - -
01531 950 Protected - 4+6 - -
01531 951 Protected - 4+6 - -
01531 952 Protected - 4+6 - -
01531 953 Protected - 4+6 - -
01531 954 Protected - 4+6 - -
01531 955 Protected - 4+6 - -
01531 956 Protected - 4+6 - -
01531 957 Protected - 4+6 - -
01531 958 Protected - 4+6 - -
01531 959 Protected - 4+6 - -
01531 960 Protected - 4+6 - -
01531 961 Protected - 4+6 - -
01531 962 Protected - 4+6 - -
01531 963 Protected - 4+6 - -
01531 964 Protected - 4+6 - -
01531 965 Protected - 4+6 - -
01531 966 Protected - 4+6 - -
01531 967 Protected - 4+6 - -
01531 968 Protected - 4+6 - -
01531 969 Protected - 4+6 - -
01531 970 Protected - 4+6 - -
01531 971 Protected - 4+6 - -
01531 972 Protected - 4+6 - -
01531 973 Protected - 4+6 - -
01531 974 Protected - 4+6 - -
01531 975 Protected - 4+6 - -
01531 976 Protected - 4+6 - -
01531 977 Protected - 4+6 - -
01531 978 Protected - 4+6 - -
01531 979 Protected - 4+6 - -
01531 980 Protected - 4+6 - -
01531 981 Protected - 4+6 - -
01531 982 Protected - 4+6 - -
01531 983 Protected - 4+6 - -
01531 984 Protected - 4+6 - -
01531 985 Protected - 4+6 - -
01531 986 Protected - 4+6 - -
01531 987 Protected - 4+6 - -
01531 988 Protected - 4+6 - -
01531 989 Protected - 4+6 - -
01531 99 Protected - N/A - -