Code allocations for the 01721 STD code

Summary

  • Status
    • Allocated: 94
    • Free: 3
    • Free for National Dialling Only: 20
    • Protected: 316
  • Operators : 81
  • Latest change : July 2012
Click here for Status definitions
Have you received a call from a number beginning 01721? Get information on a full number beginning 01721, using our full UK number search.
Find out about the location and calling costs for 01721 numbers on our 01721 code page.

This page contains information about which telephone companies the various 01721 numbers are allocated to.

First Digits Status Communications Provider Number Length Notes Change
01721 00 Free for National Dialling Only - (0)+10 - -
01721 01 Free for National Dialling Only - (0)+10 - -
01721 02 Free for National Dialling Only - (0)+10 - -
01721 03 Free for National Dialling Only - (0)+10 - -
01721 04 Free for National Dialling Only - (0)+10 - -
01721 05 Free for National Dialling Only - (0)+10 - -
01721 06 Free for National Dialling Only - (0)+10 - -
01721 07 Free for National Dialling Only - (0)+10 - -
01721 08 Free for National Dialling Only - (0)+10 - -
01721 09 Free for National Dialling Only - (0)+10 - -
01721 10 Free for National Dialling Only - (0)+10 - -
01721 11 Free for National Dialling Only - (0)+10 - -
01721 12 Free for National Dialling Only - (0)+10 - -
01721 13 Free for National Dialling Only - (0)+10 - -
01721 14 Free for National Dialling Only - (0)+10 - -
01721 15 Free for National Dialling Only - (0)+10 - -
01721 16 Free for National Dialling Only - (0)+10 - -
01721 17 Free for National Dialling Only - (0)+10 - -
01721 18 Free for National Dialling Only - (0)+10 - -
01721 19 Free for National Dialling Only - (0)+10 - -
01721 200 Allocated Digitech Solutions Global Limited 4+6 - 28/04/2010
01721 201 Allocated Calltracks Limited 4+6 - 08/07/2010
01721 202 Allocated Suretec Systems Ltd 4+6 - 12/05/2010
01721 203 Allocated Atomstream Limited 4+6 - 14/05/2010
01721 204 Allocated Telephone Box Limited 4+6 - 09/12/2010
01721 205 Allocated Simwood eSMS Limited 4+6 - 13/08/2010
01721 206 Allocated Cheers International Sales Limited 4+6 - 15/12/2010
01721 207 Allocated Windsor Telecom Plc 4+6 - 22/07/2010
01721 208 Allocated Affiniti Integrated Solutions Ltd 4+6 - 02/12/2010
01721 209 Allocated VoiceHost Limited 4+6 - 05/10/2010
01721 21 Allocated IV Response Limited 4+6 - 29/07/2005
01721 22 Allocated FleXtel Limited 4+6 - 11/11/2005
01721 230 Protected - 4+6 - -
01721 231 Protected - 4+6 - -
01721 232 Protected - 4+6 - -
01721 233 Protected - 4+6 - -
01721 234 Protected - 4+6 - -
01721 235 Protected - 4+6 - -
01721 236 Protected - 4+6 - -
01721 237 Protected - 4+6 - -
01721 238 Protected - 4+6 - -
01721 239 Protected - 4+6 - -
01721 240 Protected - 4+6 - -
01721 241 Protected - 4+6 - -
01721 242 Protected - 4+6 - -
01721 243 Protected - 4+6 - -
01721 244 Protected - 4+6 - -
01721 245 Protected - 4+6 - -
01721 246 Protected - 4+6 - -
01721 247 Protected - 4+6 - -
01721 248 Protected - 4+6 - -
01721 249 Protected - 4+6 - -
01721 25 Allocated Net Solutions Europe Limited 4+6 F-Digit '5' 15/02/2006
01721 260 Free - 4+6 - -
01721 261 Allocated Bicom Systems EURL 4+6 - 01/03/2012
01721 262 Allocated Broadcast Telecom Ltd 4+6 - 29/02/2012
01721 263 Allocated Orbtalk Limited 4+6 - 02/04/2012
01721 264 Allocated API Telecom Limited 4+6 - 10/04/2012
01721 265 Allocated ICC Networks Ltd 4+6 - 16/04/2012
01721 266 Allocated IOVOX Limited 4+6 - 04/07/2012
01721 267 Allocated Hello Telecom (UK) PLC 4+6 - 20/07/2012
01721 268 Allocated Ziron (UK) Ltd 4+6 - 31/07/2012
01721 269 Allocated Invoco Ltd 4+6 - 25/04/2012
01721 27 Allocated Telephony Services Limited 4+6 F-Digit '2' 04/08/2006
01721 280 Protected - 4+6 - -
01721 281 Protected - 4+6 - -
01721 282 Protected - 4+6 - -
01721 283 Protected - 4+6 - -
01721 284 Protected - 4+6 - -
01721 285 Protected - 4+6 - -
01721 286 Protected - 4+6 - -
01721 287 Protected - 4+6 - -
01721 288 Protected - 4+6 - -
01721 289 Protected - 4+6 - -
01721 29 Allocated TelNG Limited 4+6 F-Digit '2' 28/02/2007
01721 30 Allocated (aq) Limited trading as aql 4+6 - 03/10/2007
01721 31 Allocated Nationwide Telephone Assistance Ltd 4+6 F-Digit '0' 12/10/2007
01721 32 Allocated Telecom2 Ltd 4+6 F-Digit '6' 10/09/2009
01721 33 Allocated Net-Work Internet Ltd 4+6 F-Digit '3' 29/04/2008
01721 34 Allocated Timico Limited 4+6 F-Digit '8' 20/05/2008
01721 35 Allocated Nodemax Limited 4+6 F-Digit '0' 09/07/2008
01721 360 Allocated Voxbone SA 4+6 - 09/12/2011
01721 361 Protected - 4+6 - -
01721 362 Protected - 4+6 - -
01721 363 Protected - 4+6 - -
01721 364 Protected - 4+6 - -
01721 365 Protected - 4+6 - -
01721 366 Protected - 4+6 - -
01721 367 Protected - 4+6 - -
01721 368 Protected - 4+6 - -
01721 369 Protected - 4+6 - -
01721 37 Allocated Starcomm Ltd 4+6 F-Digit '0' 29/09/2008
01721 38 Allocated 3C Limited 4+6 F-Digit '2' 01/10/2008
01721 39 Allocated Served Up Limited. 4+6 F-Digit '6' 20/10/2008
01721 400 Allocated iNet Telecoms Ltd (Voipfone) 4+6 - 18/11/2008
01721 401 Allocated iNet Telecoms Ltd (Voipfone) 4+6 - 18/11/2008
01721 402 Protected - 4+6 - -
01721 403 Protected - 4+6 - -
01721 404 Protected - 4+6 - -
01721 405 Protected - 4+6 - -
01721 406 Protected - 4+6 - -
01721 407 Allocated iNet Telecoms Ltd (Voipfone) 4+6 - 18/11/2008
01721 408 Protected - 4+6 - -
01721 409 Protected - 4+6 - -
01721 41 Allocated Solutios Limited 4+6 F-Digit '2' 25/11/2008
01721 42 Allocated IPV6 Limited 4+6 F-Digit '0' 06/02/2009
01721 43 Allocated Nexus Telecommunications Limited 4+6 F-Digit '0' 11/06/2009
01721 44 Allocated Andrews & Arnold (Numbers) Ltd 4+6 F-Digit '0' 27/03/2009
01721 45 Allocated Mars Communications Limited 4+6 F-Digit '0' 05/02/2009
01721 46 Allocated Telecoms World Plc 4+6 F-Digit '0' 08/06/2009
01721 47 Allocated Mundio Mobile Limited 4+6 F-Digit '6' 07/07/2009
01721 48 Allocated CFL Communications Limited 4+6 F-Digit '0' 14/07/2009
01721 49 Allocated Danemere Street Creative 4+6 F-Digit '2' 22/07/2009
01721 50 Allocated Vodafone Ltd (Energis) 4+6 - 26/05/2006
01721 51 Allocated Syntec Limited 4+6 - 19/12/2005
01721 52 Allocated TTNC Limited 4+6 F-Digit '0,1,2,3,4,5,6,7,8,9' 02/10/2006
01721 53 Allocated Barritel Limited 4+6 F-Digit '2' 27/06/2007
01721 54 Allocated Gamma Telecom Holdings Ltd 4+6 - 08/04/2005
01721 55 Allocated Localphone Limited 4+6 F-Digit '0' 14/05/2007
01721 56 Allocated Frontier Systems Ltd 4+6 F-Digit '3' 27/09/2007
01721 570 Protected - 4+6 - -
01721 571 Protected - 4+6 - -
01721 572 Protected - 4+6 - -
01721 573 Protected - 4+6 - -
01721 574 Protected - 4+6 - -
01721 575 Protected - 4+6 - -
01721 576 Protected - 4+6 - -
01721 577 Allocated Spitfire Network Services Ltd 4+6 - 11/11/2011
01721 578 Protected - 4+6 - -
01721 579 Protected - 4+6 - -
01721 580 Protected - 4+6 - -
01721 581 Protected - 4+6 - -
01721 582 Protected - 4+6 - -
01721 583 Protected - 4+6 - -
01721 584 Protected - 4+6 - -
01721 585 Protected - 4+6 - -
01721 586 Protected - 4+6 - -
01721 587 Protected - 4+6 - -
01721 588 Allocated TalkTalk Communications Limited 4+6 - 19/01/2012
01721 589 Allocated TalkTalk Communications Limited 4+6 - 19/01/2012
01721 590 Allocated Linear Telecoms Limited 4+6 - 18/10/2010
01721 591 Protected - 4+6 - -
01721 592 Protected - 4+6 - -
01721 593 Protected - 4+6 - -
01721 594 Protected - 4+6 - -
01721 595 Protected - 4+6 - -
01721 596 Protected - 4+6 - -
01721 597 Protected - 4+6 - -
01721 598 Protected - 4+6 - -
01721 599 Protected - 4+6 - -
01721 600 Allocated Invosys Limited 4+6 - 20/01/2011
01721 601 Allocated Phone Co-Op Numbering Limited 4+6 - 21/12/2010
01721 602 Allocated British Sky Broadcasting Limited 4+6 - 10/02/2011
01721 603 Allocated IP Base Ltd 4+6 - 07/02/2011
01721 604 Allocated Globecom International Limited 4+6 - 04/01/2011
01721 605 Allocated Nexbridge Communications Limited 4+6 - 17/03/2011
01721 606 Free - 4+6 - -
01721 607 Allocated TalkTalk Communications Limited 4+6 - 26/09/2011
01721 608 Allocated Barritec Limited 4+6 - 28/09/2011
01721 609 Allocated Internexus Networks Limited 4+6 - 22/11/2011
01721 610 Allocated We Love Communications Limited 4+6 - 14/08/2012
01721 611 Allocated Content Guru Ltd 4+6 - 12/10/2012
01721 612 Allocated Minotaur Telecom Limited 4+6 - 05/02/2013
01721 613 Allocated Kalnet4u Ltd 4+6 - 30/05/2013
01721 614 Allocated Resilient Networks Plc 4+6 - 14/05/2014
01721 615 Allocated iHub UK Ltd 4+6 - 18/06/2014
01721 616 Allocated i-Net Communications Group Plc 4+6 - 03/07/2013
01721 617 Allocated Radius Communications Limited 4+6 - 08/01/2014
01721 618 Free - 4+6 - -
01721 619 Allocated XoverX Ltd 4+6 - 29/04/2013
01721 620 Protected - 4+6 - -
01721 621 Protected - 4+6 - -
01721 622 Protected - 4+6 - -
01721 623 Protected - 4+6 - -
01721 624 Protected - 4+6 - -
01721 625 Protected - 4+6 - -
01721 626 Protected - 4+6 - -
01721 627 Protected - 4+6 - -
01721 628 Protected - 4+6 - -
01721 629 Protected - 4+6 - -
01721 63 Allocated VoIP-Un Limited 4+6 F-Digit '0' 01/11/2007
01721 640 Protected - 4+6 - -
01721 641 Protected - 4+6 - -
01721 642 Protected - 4+6 - -
01721 643 Protected - 4+6 - -
01721 644 Protected - 4+6 - -
01721 645 Protected - 4+6 - -
01721 646 Protected - 4+6 - -
01721 647 Allocated Premium O Limited 4+6 - 04/02/2008
01721 648 Protected - 4+6 - -
01721 649 Protected - 4+6 - -
01721 65 Allocated InTechnology Plc 4+6 F-Digit '2' 07/01/2008
01721 660 Protected - 4+6 - -
01721 661 Protected - 4+6 - -
01721 662 Protected - 4+6 - -
01721 663 Protected - 4+6 - -
01721 664 Protected - 4+6 - -
01721 665 Protected - 4+6 - -
01721 666 Protected - 4+6 - -
01721 667 Protected - 4+6 - -
01721 668 Protected - 4+6 - -
01721 669 Protected - 4+6 - -
01721 670 Protected - 4+6 - -
01721 671 Protected - 4+6 - -
01721 672 Protected - 4+6 - -
01721 673 Protected - 4+6 - -
01721 674 Protected - 4+6 - -
01721 675 Protected - 4+6 - -
01721 676 Protected - 4+6 - -
01721 677 Protected - 4+6 - -
01721 678 Protected - 4+6 - -
01721 679 Protected - 4+6 - -
01721 68 Allocated BT 4+6 - 11/09/1995
01721 690 Protected - 4+6 - -
01721 691 Protected - 4+6 - -
01721 692 Protected - 4+6 - -
01721 693 Protected - 4+6 - -
01721 694 Protected - 4+6 - -
01721 695 Protected - 4+6 - -
01721 696 Protected - 4+6 - -
01721 697 Protected - 4+6 - -
01721 698 Protected - 4+6 - -
01721 699 Protected - 4+6 - -
01721 70 Allocated Vodafone Ltd (C&W) 4+6 - 15/02/2010
01721 710 Allocated Vodafone Ltd (Thus) 4+6 - 05/01/1996
01721 711 Allocated Vodafone Ltd (Thus) 4+6 - 05/01/1996
01721 712 Protected - 4+6 - -
01721 713 Protected - 4+6 - -
01721 714 Protected - 4+6 - -
01721 715 Protected - 4+6 - -
01721 716 Allocated Vodafone Ltd (Thus) 4+6 - 05/01/1996
01721 717 Allocated Vodafone Ltd (Thus) 4+6 - 05/01/1996
01721 718 Allocated Vodafone Ltd (Thus) 4+6 - 05/01/1996
01721 719 Allocated Vodafone Ltd (Thus) 4+6 - 05/01/1996
01721 72 Allocated BT 4+6 - 15/07/1994
01721 73 Allocated BT 4+6 - 15/07/1994
01721 74 Allocated BT 4+6 - 15/07/1994
01721 75 Allocated BT 4+6 - 15/07/1994
01721 76 Allocated BT 4+6 - 15/07/1994
01721 77 Allocated Teledesign Ltd 4+6 F-Digit '2' 28/09/2007
01721 78 Allocated Magrathea Telecommunications Limited 4+6 - 24/09/2004
01721 79 Allocated Edge Telecom Limited 4+6 - 11/04/2005
01721 800 Protected - 4+6 - -
01721 801 Protected - 4+6 - -
01721 802 Protected - 4+6 - -
01721 803 Protected - 4+6 - -
01721 804 Protected - 4+6 - -
01721 805 Protected - 4+6 - -
01721 806 Protected - 4+6 - -
01721 807 Protected - 4+6 - -
01721 808 Protected - 4+6 - -
01721 809 Protected - 4+6 - -
01721 810 Protected - 4+6 - -
01721 811 Protected - 4+6 - -
01721 812 Protected - 4+6 - -
01721 813 Protected - 4+6 - -
01721 814 Protected - 4+6 - -
01721 815 Protected - 4+6 - -
01721 816 Protected - 4+6 - -
01721 817 Protected - 4+6 - -
01721 818 Protected - 4+6 - -
01721 819 Protected - 4+6 - -
01721 820 Protected - 4+6 - -
01721 821 Protected - 4+6 - -
01721 822 Protected - 4+6 - -
01721 823 Protected - 4+6 - -
01721 824 Protected - 4+6 - -
01721 825 Protected - 4+6 - -
01721 826 Protected - 4+6 - -
01721 827 Protected - 4+6 - -
01721 828 Protected - 4+6 - -
01721 829 Protected - 4+6 - -
01721 830 Protected - 4+6 - -
01721 831 Protected - 4+6 - -
01721 832 Protected - 4+6 - -
01721 833 Protected - 4+6 - -
01721 834 Protected - 4+6 - -
01721 835 Protected - 4+6 - -
01721 836 Protected - 4+6 - -
01721 837 Protected - 4+6 - -
01721 838 Protected - 4+6 - -
01721 839 Protected - 4+6 - -
01721 840 Protected - 4+6 - -
01721 841 Protected - 4+6 - -
01721 842 Protected - 4+6 - -
01721 843 Protected - 4+6 - -
01721 844 Protected - 4+6 - -
01721 845 Protected - 4+6 - -
01721 846 Protected - 4+6 - -
01721 847 Protected - 4+6 - -
01721 848 Protected - 4+6 - -
01721 849 Protected - 4+6 - -
01721 850 Protected - 4+6 - -
01721 851 Protected - 4+6 - -
01721 852 Protected - 4+6 - -
01721 853 Protected - 4+6 - -
01721 854 Protected - 4+6 - -
01721 855 Protected - 4+6 - -
01721 856 Protected - 4+6 - -
01721 857 Protected - 4+6 - -
01721 858 Protected - 4+6 - -
01721 859 Protected - 4+6 - -
01721 860 Protected - 4+6 - -
01721 861 Protected - 4+6 - -
01721 862 Protected - 4+6 - -
01721 863 Protected - 4+6 - -
01721 864 Protected - 4+6 - -
01721 865 Protected - 4+6 - -
01721 866 Protected - 4+6 - -
01721 867 Protected - 4+6 - -
01721 868 Protected - 4+6 - -
01721 869 Protected - 4+6 - -
01721 870 Protected - 4+6 - -
01721 871 Protected - 4+6 - -
01721 872 Protected - 4+6 - -
01721 873 Protected - 4+6 - -
01721 874 Protected - 4+6 - -
01721 875 Protected - 4+6 - -
01721 876 Protected - 4+6 - -
01721 877 Protected - 4+6 - -
01721 878 Protected - 4+6 - -
01721 879 Protected - 4+6 - -
01721 880 Protected - 4+6 - -
01721 881 Protected - 4+6 - -
01721 882 Protected - 4+6 - -
01721 883 Protected - 4+6 - -
01721 884 Protected - 4+6 - -
01721 885 Protected - 4+6 - -
01721 886 Protected - 4+6 - -
01721 887 Protected - 4+6 - -
01721 888 Protected - 4+6 - -
01721 889 Protected - 4+6 - -
01721 890 Protected - 4+6 - -
01721 891 Protected - 4+6 - -
01721 892 Protected - 4+6 - -
01721 893 Protected - 4+6 - -
01721 894 Protected - 4+6 - -
01721 895 Protected - 4+6 - -
01721 896 Protected - 4+6 - -
01721 897 Protected - 4+6 - -
01721 898 Protected - 4+6 - -
01721 899 Protected - 4+6 - -
01721 900 Protected - 4+6 - -
01721 901 Protected - 4+6 - -
01721 902 Protected - 4+6 - -
01721 903 Protected - 4+6 - -
01721 904 Protected - 4+6 - -
01721 905 Protected - 4+6 - -
01721 906 Protected - 4+6 - -
01721 907 Protected - 4+6 - -
01721 908 Protected - 4+6 - -
01721 909 Protected - 4+6 - -
01721 910 Protected - 4+6 - -
01721 911 Protected - 4+6 - -
01721 912 Protected - 4+6 - -
01721 913 Protected - 4+6 - -
01721 914 Protected - 4+6 - -
01721 915 Protected - 4+6 - -
01721 916 Protected - 4+6 - -
01721 917 Protected - 4+6 - -
01721 918 Protected - 4+6 - -
01721 919 Protected - 4+6 - -
01721 920 Protected - 4+6 - -
01721 921 Protected - 4+6 - -
01721 922 Protected - 4+6 - -
01721 923 Protected - 4+6 - -
01721 924 Protected - 4+6 - -
01721 925 Protected - 4+6 - -
01721 926 Protected - 4+6 - -
01721 927 Protected - 4+6 - -
01721 928 Protected - 4+6 - -
01721 929 Protected - 4+6 - -
01721 930 Protected - 4+6 - -
01721 931 Protected - 4+6 - -
01721 932 Protected - 4+6 - -
01721 933 Protected - 4+6 - -
01721 934 Protected - 4+6 - -
01721 935 Protected - 4+6 - -
01721 936 Protected - 4+6 - -
01721 937 Protected - 4+6 - -
01721 938 Protected - 4+6 - -
01721 939 Protected - 4+6 - -
01721 940 Protected - 4+6 - -
01721 941 Protected - 4+6 - -
01721 942 Protected - 4+6 - -
01721 943 Protected - 4+6 - -
01721 944 Protected - 4+6 - -
01721 945 Protected - 4+6 - -
01721 946 Protected - 4+6 - -
01721 947 Protected - 4+6 - -
01721 948 Protected - 4+6 - -
01721 949 Protected - 4+6 - -
01721 950 Protected - 4+6 - -
01721 951 Protected - 4+6 - -
01721 952 Protected - 4+6 - -
01721 953 Protected - 4+6 - -
01721 954 Protected - 4+6 - -
01721 955 Protected - 4+6 - -
01721 956 Protected - 4+6 - -
01721 957 Protected - 4+6 - -
01721 958 Protected - 4+6 - -
01721 959 Protected - 4+6 - -
01721 960 Protected - 4+6 - -
01721 961 Protected - 4+6 - -
01721 962 Protected - 4+6 - -
01721 963 Protected - 4+6 - -
01721 964 Protected - 4+6 - -
01721 965 Protected - 4+6 - -
01721 966 Protected - 4+6 - -
01721 967 Protected - 4+6 - -
01721 968 Protected - 4+6 - -
01721 969 Protected - 4+6 - -
01721 970 Protected - 4+6 - -
01721 971 Protected - 4+6 - -
01721 972 Protected - 4+6 - -
01721 973 Protected - 4+6 - -
01721 974 Protected - 4+6 - -
01721 975 Protected - 4+6 - -
01721 976 Protected - 4+6 - -
01721 977 Protected - 4+6 - -
01721 978 Protected - 4+6 - -
01721 979 Protected - 4+6 - -
01721 980 Protected - 4+6 - -
01721 981 Protected - 4+6 - -
01721 982 Protected - 4+6 - -
01721 983 Protected - 4+6 - -
01721 984 Protected - 4+6 - -
01721 985 Protected - 4+6 - -
01721 986 Protected - 4+6 - -
01721 987 Protected - 4+6 - -
01721 988 Protected - 4+6 - -
01721 989 Protected - 4+6 - -
01721 99 Protected - N/A - -