Code allocations for the 01603 STD code

Summary

  • Status
    • Allocated: 223
    • Free: 17
    • Free for National Dialling Only: 27
    • Protected: 85
  • Operators : 97
  • Latest change : December 2008
Click here for Status definitions
Have you received a call from a number beginning 01603? Get information on a full number beginning 01603, using our full UK number search.
Find out about the location and calling costs for 01603 numbers on our 01603 code page.

This page contains information about which telephone companies the various 01603 numbers are allocated to.

First Digits Status Communications Provider Number Length Notes Change
01603 00 Free for National Dialling Only - (0)+10 - -
01603 01 Free for National Dialling Only - (0)+10 - -
01603 02 Free for National Dialling Only - (0)+10 - -
01603 03 Free for National Dialling Only - (0)+10 - -
01603 04 Free for National Dialling Only - (0)+10 - -
01603 05 Free for National Dialling Only - (0)+10 - -
01603 06 Free for National Dialling Only - (0)+10 - -
01603 07 Free for National Dialling Only - (0)+10 - -
01603 08 Free for National Dialling Only - (0)+10 - -
01603 09 Free for National Dialling Only - (0)+10 - -
01603 100 Free for National Dialling Only - (0)+10 - -
01603 101 Free for National Dialling Only - (0)+10 - -
01603 102 Free for National Dialling Only - (0)+10 - -
01603 103 Free for National Dialling Only - (0)+10 - -
01603 104 Free for National Dialling Only - (0)+10 - -
01603 105 Allocated BT (0)+10 - 28/11/2005
01603 106 Free for National Dialling Only - (0)+10 - -
01603 107 Free for National Dialling Only - (0)+10 - -
01603 108 Allocated BT (0)+10 - 12/03/2010
01603 109 Free for National Dialling Only - (0)+10 - -
01603 11 Free for National Dialling Only - (0)+10 - -
01603 12 Free for National Dialling Only - (0)+10 - -
01603 13 Free for National Dialling Only - (0)+10 - -
01603 14 Free for National Dialling Only - (0)+10 - -
01603 15 Free for National Dialling Only - (0)+10 - -
01603 16 Free for National Dialling Only - (0)+10 - -
01603 17 Free for National Dialling Only - (0)+10 - -
01603 18 Free for National Dialling Only - (0)+10 - -
01603 19 Free for National Dialling Only - (0)+10 - -
01603 20 Allocated Vodafone Ltd (C&W) 4+6 - 15/02/2010
01603 21 Allocated BT 4+6 - 15/07/1994
01603 22 Allocated BT 4+6 - 15/07/1994
01603 23 Allocated BT 4+6 - 15/07/1994
01603 24 Allocated BT 4+6 - 15/07/1994
01603 25 Allocated BT 4+6 - 15/07/1994
01603 26 Allocated BT 4+6 - 15/07/1994
01603 27 Allocated BT 4+6 - 15/07/1994
01603 28 Allocated BT 4+6 - 15/07/1994
01603 290 Allocated Net-Work Internet Ltd 4+6 - 21/09/2007
01603 291 Allocated TalkTalk Communications Limited 4+6 - 15/10/2007
01603 292 Allocated X-Pilot Limited 4+6 F-Digit '0' 31/10/2007
01603 293 Allocated VoIP-Un Limited 4+6 - 01/11/2007
01603 294 Allocated Affiniti Integrated Solutions Ltd 4+6 - 17/12/2007
01603 295 Allocated Premium O Limited 4+6 - 14/01/2008
01603 296 Allocated Telecom2 Ltd 4+6 - 10/09/2009
01603 297 Protected - 4+6 - -
01603 298 Allocated Voxbone SA 4+6 - 29/01/2008
01603 299 Allocated Nationwide Telephone Assistance Ltd 4+6 - 10/07/2008
01603 30 Allocated BT 4+6 - 15/07/1994
01603 310 Allocated Nodemax Limited 4+6 - 14/07/2008
01603 311 Allocated Syntec Limited 4+6 - 02/09/2008
01603 312 Allocated 3C Limited 4+6 - 01/10/2008
01603 313 Allocated Starcomm Ltd 4+6 - 03/10/2008
01603 314 Allocated Invomo Ltd 4+6 - 06/10/2008
01603 315 Allocated Barritel Limited 4+6 - 08/10/2008
01603 316 Allocated Served Up Limited. 4+6 - 14/10/2008
01603 317 Protected - 4+6 - -
01603 318 Allocated Barritec Limited 4+6 - 12/11/2008
01603 319 Free - 4+6 - -
01603 320 Free - 4+6 - -
01603 321 Allocated Andrews & Arnold (Numbers) Ltd 4+6 - 23/03/2009
01603 322 Allocated British Sky Broadcasting Limited 4+6 - 31/12/2008
01603 323 Allocated Colloquium Ltd 4+6 - 26/03/2009
01603 324 Allocated IP Base Ltd 4+6 - 21/01/2011
01603 325 Allocated New Call Telecom Limited 4+6 - 11/06/2009
01603 326 Allocated Level 3 Communications UK Limited 4+6 - 03/03/2009
01603 327 Allocated iNet Telecoms Ltd (Voipfone) 4+6 - 18/11/2008
01603 328 Allocated IPV6 Limited 4+6 - 06/02/2009
01603 329 Allocated Telecoms World Plc 4+6 - 28/04/2009
01603 330 Free - 4+6 - -
01603 331 Allocated Known Communications Limited 4+6 - 22/09/2009
01603 332 Allocated Mundio Mobile Limited 4+6 - 01/07/2009
01603 333 Allocated Orbis Telecom 4+6 - 22/06/2009
01603 334 Free - 4+6 - -
01603 335 Free - 4+6 - -
01603 336 Free - 4+6 - -
01603 337 Allocated Wightfibre Limited 4+6 - 10/12/2009
01603 338 Allocated i-Net Communications Group Plc 4+6 - 13/01/2010
01603 339 Allocated Buzz Networks Limited 4+6 - 01/03/2010
01603 34 Allocated Telephony Services Limited 4+6 F-Digit '0' 01/11/2004
01603 35 Allocated Vodafone Ltd (C&W) 4+6 - 15/02/2010
01603 36 Allocated Edge Telecom Limited 4+6 F-Digit '0' 24/01/2005
01603 37 Allocated Verizon UK Ltd 4+6 F-Digit '0' 24/11/2004
01603 380 Allocated Voicenet Solutions Ltd 4+6 - 19/02/2010
01603 381 Allocated Liquid 11 Limited 4+6 - 20/04/2010
01603 382 Protected - 4+6 - -
01603 383 Allocated Minotaur Telecom Limited 4+6 - 16/03/2010
01603 384 Allocated Calltracks Limited 4+6 - 08/07/2010
01603 385 Free - 4+6 - -
01603 386 Protected - 4+6 - -
01603 387 Allocated British Sky Broadcasting Limited 4+6 - 16/07/2010
01603 388 Allocated Suretec Systems Ltd 4+6 - 06/05/2010
01603 389 Allocated Numbergroup Network Ltd 4+6 - 14/06/2010
01603 390 Allocated Linear Telecoms Limited 4+6 - 14/10/2010
01603 391 Allocated API Telecom Limited 4+6 - 05/04/2012
01603 392 Allocated ICC Networks Ltd 4+6 - 17/04/2012
01603 393 Free - 4+6 - -
01603 394 Allocated Ziron (UK) Ltd 4+6 - 30/07/2012
01603 395 Allocated British Sky Broadcasting Limited 4+6 - 03/08/2012
01603 396 Allocated TalkTalk Communications Limited 4+6 - 24/08/2012
01603 397 Allocated Gamma Telecom Holdings Ltd 4+6 - 20/09/2012
01603 398 Allocated IOVOX Limited 4+6 - 03/07/2012
01603 399 Allocated We Love Communications Limited 4+6 - 13/08/2012
01603 40 Allocated BT 4+6 - 15/07/1994
01603 41 Allocated BT 4+6 - 15/07/1994
01603 42 Allocated BT 4+6 - 15/07/1994
01603 43 Allocated BT 4+6 - 15/07/1994
01603 44 Allocated Virgin Media Limited 4+6 - 27/01/1997
01603 45 Allocated BT 4+6 - 15/07/1994
01603 46 Allocated Virgin Media Limited 4+6 - 11/04/1997
01603 47 Allocated Virgin Media Limited 4+6 - 11/04/1997
01603 48 Allocated BT 4+6 - 15/07/1994
01603 49 Allocated Virgin Media Limited 4+6 - 11/04/1997
01603 50 Allocated BT 4+6 - 15/07/1994
01603 51 Allocated Gamma Telecom Holdings Ltd 4+6 F-Digit '0,1,2,3,4,5,6,7,8,9' 01/03/2004
01603 520 Allocated Windsor Telecom Plc 4+6 - 22/07/2010
01603 521 Allocated Media Telecom Ltd 4+6 - 05/08/2010
01603 522 Allocated Magnetic North Software Limited 4+6 - 02/08/2010
01603 523 Allocated Core Telecom Limited 4+6 - 06/08/2010
01603 524 Allocated Plus Telecom Limited 4+6 - 24/09/2010
01603 525 Allocated Citrus Telecommunications Ltd 4+6 - 04/11/2010
01603 526 Free - 4+6 - -
01603 527 Allocated British Sky Broadcasting Limited 4+6 - 19/01/2011
01603 528 Allocated British Sky Broadcasting Limited 4+6 - 05/07/2011
01603 529 Allocated Numbers Plus Ltd 4+6 - 28/07/2011
01603 530 Allocated TG Support Limited 4+6 - 23/09/2014
01603 531 Protected - 4+6 - -
01603 532 Allocated TG Support Limited 4+6 - 23/09/2014
01603 533 Allocated TG Support Limited 4+6 - 23/09/2014
01603 534 Allocated TG Support Limited 4+6 - 23/09/2014
01603 535 Protected - 4+6 - -
01603 536 Protected - 4+6 - -
01603 537 Protected - 4+6 - -
01603 538 Protected - 4+6 - -
01603 539 Protected - 4+6 - -
01603 540 Allocated Vodafone Ltd (C&W) 4+6 - 15/02/2010
01603 541 Protected - 4+6 - -
01603 542 Protected - 4+6 - -
01603 543 Allocated Vodafone Ltd (C&W) 4+6 - 15/02/2010
01603 544 Allocated Vodafone Ltd (C&W) 4+6 - 15/02/2010
01603 545 Allocated Vodafone Ltd (C&W) 4+6 - 15/02/2010
01603 546 Allocated Vodafone Ltd (C&W) 4+6 - 15/02/2010
01603 547 Allocated Vodafone Ltd (C&W) 4+6 - 15/02/2010
01603 548 Allocated Vodafone Ltd (C&W) 4+6 - 15/02/2010
01603 549 Allocated Vodafone Ltd (C&W) 4+6 - 15/02/2010
01603 550 Allocated Level 3 Communications UK Limited 4+6 - 03/04/2006
01603 551 Allocated Callagenix Ltd 4+6 - 20/10/2006
01603 552 Allocated Kalnet4u Ltd 4+6 - 24/05/2013
01603 553 Allocated Level 3 Communications UK Limited 4+6 - 03/04/2006
01603 554 Allocated Digital Mail Limited 4+6 - 02/02/2007
01603 555 Allocated Simwood eSMS Limited 4+6 - 18/07/2006
01603 556 Allocated Teledesign Ltd 4+6 - 19/09/2006
01603 557 Allocated TelNG Limited 4+6 - 28/02/2007
01603 558 Allocated Frontier Systems Ltd 4+6 - 30/07/2007
01603 559 Allocated VoiceHost Limited 4+6 - 30/06/2010
01603 560 Allocated British Sky Broadcasting Limited 4+6 - 15/04/2011
01603 561 Allocated COLT Technology Services 4+6 - 20/10/2011
01603 562 Allocated Hello Telecom (UK) PLC 4+6 - 17/11/2011
01603 563 Allocated Internexus Networks Limited 4+6 - 21/11/2011
01603 564 Allocated Nexbridge Communications Limited 4+6 - 09/01/2012
01603 565 Allocated Outsourcery Hosting Ltd 4+6 - 22/02/2012
01603 566 Protected - 4+6 - -
01603 567 Free - 4+6 - -
01603 568 Allocated TalkTalk Communications Limited 4+6 - 21/03/2012
01603 569 Allocated British Sky Broadcasting Limited 4+6 - 14/12/2011
01603 570 Protected - 4+6 - -
01603 571 Protected - 4+6 - -
01603 572 Protected - 4+6 - -
01603 573 Protected - 4+6 - -
01603 574 Protected - 4+6 - -
01603 575 Protected - 4+6 - -
01603 576 Protected - 4+6 - -
01603 577 Protected - 4+6 - -
01603 578 Protected - 4+6 - -
01603 579 Protected - 4+6 - -
01603 58 Allocated InTechnology Plc 4+6 F-Digit '0' 08/06/2007
01603 59 Allocated BT 4+6 - 15/07/1994
01603 600 Allocated Vodafone Ltd (C&W) 4+6 - 15/02/2010
01603 601 Allocated Vodafone Ltd (C&W) 4+6 - 15/02/2010
01603 602 Allocated Vodafone Ltd (C&W) 4+6 - 15/02/2010
01603 603 Allocated Vodafone Ltd (C&W) 4+6 - 15/02/2010
01603 604 Allocated Vodafone Ltd (C&W) 4+6 - 15/02/2010
01603 605 Allocated Vodafone Ltd (C&W) 4+6 - 15/02/2010
01603 606 Allocated Vodafone Ltd (C&W) 4+6 - 15/02/2010
01603 607 Allocated Vodafone Ltd (C&W) 4+6 - 06/09/2013
01603 608 Protected - 4+6 - -
01603 609 Protected - 4+6 - -
01603 61 Allocated BT 4+6 - 15/07/1994
01603 62 Allocated BT 4+6 - 15/07/1994
01603 63 Allocated BT 4+6 - 15/07/1994
01603 640 Allocated Virgin Media Limited 4+6 - 23/11/2000
01603 641 Allocated Virgin Media Limited 4+6 - 23/11/2000
01603 642 Allocated Virgin Media Limited 4+6 - 23/11/2000
01603 643 Allocated Virgin Media Limited 4+6 - 23/11/2000
01603 644 Allocated Virgin Media Limited 4+6 - 23/11/2000
01603 645 Allocated Virgin Media Limited 4+6 - 23/11/2000
01603 646 Allocated Virgin Media Limited 4+6 - 23/11/2000
01603 647 Allocated Virgin Media Limited 4+6 - 23/11/2000
01603 648 Allocated Virgin Media Limited 4+6 - 23/11/2000
01603 649 Allocated Virgin Media Limited 4+6 - 23/11/2000
01603 650 Protected - 4+6 - -
01603 651 Protected - 4+6 - -
01603 652 Protected - 4+6 - -
01603 653 Protected - 4+6 - -
01603 654 Protected - 4+6 - -
01603 655 Protected - 4+6 - -
01603 656 Allocated Vodafone Ltd (Thus) 4+6 - 29/09/2003
01603 657 Protected - 4+6 - -
01603 658 Allocated Vodafone Ltd (Thus) 4+6 - 29/09/2003
01603 659 Allocated Vodafone Ltd (Thus) 4+6 - 29/09/2003
01603 66 Allocated BT 4+6 - 15/07/1994
01603 67 Allocated BT 4+6 - 15/07/1994
01603 68 Allocated Vodafone Ltd (C&W) 4+6 - 15/02/2010
01603 69 Allocated BT 4+6 - 15/07/1994
01603 70 Allocated BT 4+6 - 15/07/1994
01603 71 Allocated BT 4+6 - 15/07/1994
01603 72 Allocated BT 4+6 - 15/07/1994
01603 73 Allocated BT 4+6 - 15/07/1994
01603 74 Allocated BT 4+6 - 15/07/1994
01603 75 Allocated BT 4+6 - 15/07/1994
01603 76 Allocated BT 4+6 - 15/07/1994
01603 77 Allocated BT 4+6 - 15/07/1994
01603 78 Allocated BT 4+6 - 15/07/1994
01603 790 Allocated Inclarity Communications Ltd 4+6 - 30/11/2010
01603 791 Allocated Inclarity Communications Ltd 4+6 - 30/11/2010
01603 792 Protected - 4+6 - -
01603 793 Protected - 4+6 - -
01603 794 Protected - 4+6 - -
01603 795 Allocated Inclarity Communications Ltd 4+6 - 30/11/2010
01603 796 Protected - 4+6 - -
01603 797 Protected - 4+6 - -
01603 798 Protected - 4+6 - -
01603 799 Protected - 4+6 - -
01603 800 Protected - 4+6 - -
01603 801 Protected - 4+6 - -
01603 802 Protected - 4+6 - -
01603 803 Allocated Virgin Media Limited 4+6 - 17/11/1999
01603 804 Protected - 4+6 - -
01603 805 Protected - 4+6 - -
01603 806 Allocated Virgin Media Limited 4+6 - 17/11/1999
01603 807 Allocated Virgin Media Limited 4+6 - 17/11/1999
01603 808 Allocated Virgin Media Limited 4+6 - 17/11/1999
01603 809 Allocated Virgin Media Limited 4+6 - 17/11/1999
01603 81 Allocated BT 4+6 - 15/07/1994
01603 82 Allocated Vodafone Ltd (C&W) 4+6 - 15/02/2010
01603 83 Allocated Vodafone Ltd (C&W) 4+6 - 15/02/2010
01603 84 Allocated Vodafone Ltd (C&W) 4+6 - 15/02/2010
01603 850 Allocated Magrathea Telecommunications Limited 4+6 - 16/11/2011
01603 851 Allocated Magrathea Telecommunications Limited 4+6 - 16/11/2011
01603 852 Protected - 4+6 - -
01603 853 Protected - 4+6 - -
01603 854 Protected - 4+6 - -
01603 855 Allocated Magrathea Telecommunications Limited 4+6 - 16/11/2011
01603 856 Allocated Magrathea Telecommunications Limited 4+6 - 16/11/2011
01603 857 Allocated Magrathea Telecommunications Limited 4+6 - 16/11/2011
01603 858 Allocated Magrathea Telecommunications Limited 4+6 - 16/11/2011
01603 859 Allocated Magrathea Telecommunications Limited 4+6 - 16/11/2011
01603 86 Allocated BT 4+6 - 15/07/1994
01603 87 Allocated BT 4+6 - 15/07/1994
01603 88 Allocated BT 4+6 - 15/07/1994
01603 89 Allocated BT 4+6 - 15/07/1994
01603 900 Allocated Danemere Street Creative 4+6 - 16/06/2005
01603 901 Allocated Six Degrees Unified Comms Limited 4+6 - 18/07/2005
01603 902 Protected - 4+6 - -
01603 903 Allocated Easynet Enterprise Services Limited 4+6 - 30/09/2005
01603 904 Allocated VoiceHost Limited 4+6 - 30/06/2010
01603 905 Allocated TTNC Limited 4+6 - 10/02/2006
01603 906 Allocated Vodafone Ltd (C&W) 4+6 - 22/02/2010
01603 907 Allocated Wavecrest (UK) Ltd 4+6 - 14/11/2005
01603 908 Allocated FleXtel Limited 4+6 - 16/11/2005
01603 909 Allocated TelXL Ltd 4+6 - 31/10/2005
01603 910 Allocated Virgin Media Limited 4+6 - 19/12/2005
01603 911 Protected - 4+6 - -
01603 912 Allocated Virgin Media Wholesale Limited 4+6 - 29/10/2009
01603 913 Allocated Coms.Com Ltd 4+6 - 31/05/2006
01603 914 Allocated (aq) Limited trading as aql 4+6 - 14/09/2007
01603 915 Allocated Net Solutions Europe Limited 4+6 - 27/02/2006
01603 916 Allocated Localphone Limited 4+6 - 10/05/2007
01603 917 Allocated Spitfire Network Services Ltd 4+6 - 22/08/2006
01603 918 Allocated Resilient Networks Plc 4+6 - 29/12/2006
01603 919 Allocated Vodafone Ltd (C&W) 4+6 - 24/02/2006
01603 920 Allocated TalkTalk Communications Limited 4+6 - 31/08/2011
01603 921 Protected - 4+6 - -
01603 922 Protected - 4+6 - -
01603 923 Protected - 4+6 - -
01603 924 Protected - 4+6 - -
01603 925 Protected - 4+6 - -
01603 926 Allocated TalkTalk Communications Limited 4+6 - 31/08/2011
01603 927 Allocated TalkTalk Communications Limited 4+6 - 31/08/2011
01603 928 Allocated TalkTalk Communications Limited 4+6 - 31/08/2011
01603 929 Allocated TalkTalk Communications Limited 4+6 - 31/08/2011
01603 930 Protected - 4+6 - -
01603 931 Protected - 4+6 - -
01603 932 Protected - 4+6 - -
01603 933 Protected - 4+6 - -
01603 934 Protected - 4+6 - -
01603 935 Protected - 4+6 - -
01603 936 Protected - 4+6 - -
01603 937 Protected - 4+6 - -
01603 938 Protected - 4+6 - -
01603 939 Protected - 4+6 - -
01603 940 Allocated British Sky Broadcasting Limited 4+6 - 27/09/2012
01603 941 Allocated Content Guru Ltd 4+6 - 12/10/2012
01603 942 Allocated Orange Business Holdings UK Limited 4+6 - 17/01/2013
01603 943 Allocated Media Hawk Ltd 4+6 - 10/04/2013
01603 944 Allocated Affiniti Integrated Solutions Ltd 4+6 - 26/11/2012
01603 945 Allocated British Sky Broadcasting Limited 4+6 - 17/07/2013
01603 946 Allocated British Sky Broadcasting Limited 4+6 - 25/04/2013
01603 947 Allocated British Sky Broadcasting Limited 4+6 - 17/07/2013
01603 948 Free - 4+6 - -
01603 949 Allocated Digital Select Limited 4+6 - 21/02/2013
01603 950 Allocated Radius Communications Limited 4+6 - 07/01/2014
01603 951 Allocated TalkTalk Communications Limited 4+6 - 19/09/2013
01603 952 Allocated BT 4+6 - 30/09/2013
01603 953 Allocated BT 4+6 - 21/10/2013
01603 954 Allocated Affiniti Integrated Solutions Ltd 4+6 - 19/11/2013
01603 955 Allocated iHub UK Ltd 4+6 - 16/08/2013
01603 956 Allocated BT 4+6 - 18/12/2013
01603 957 Allocated Gamma Telecom Holdings Ltd 4+6 - 20/11/2013
01603 958 Allocated TalkTalk Communications Limited 4+6 - 07/03/2014
01603 959 Allocated Gamma Telecom Holdings Ltd 4+6 - 04/06/2014
01603 960 Allocated TalkTalk Communications Limited 4+6 - 09/09/2014
01603 961 Allocated British Sky Broadcasting Limited 4+6 - 15/09/2014
01603 962 Allocated BT 4+6 - 22/07/2014
01603 963 Allocated IOVOX Limited 4+6 - 23/10/2014
01603 964 Free - 4+6 - -
01603 965 Free - 4+6 - -
01603 966 Free - 4+6 - -
01603 967 Free - 4+6 - -
01603 968 Free - 4+6 - -
01603 969 Free - 4+6 - -
01603 970 Protected - 4+6 - -
01603 971 Protected - 4+6 - -
01603 972 Protected - 4+6 - -
01603 973 Protected - 4+6 - -
01603 974 Protected - 4+6 - -
01603 975 Protected - 4+6 - -
01603 976 Protected - 4+6 - -
01603 977 Protected - 4+6 - -
01603 978 Protected - 4+6 - -
01603 979 Protected - 4+6 - -
01603 980 Protected - 4+6 - -
01603 981 Protected - 4+6 - -
01603 982 Protected - 4+6 - -
01603 983 Protected - 4+6 - -
01603 984 Protected - 4+6 - -
01603 985 Protected - 4+6 - -
01603 986 Protected - 4+6 - -
01603 987 Protected - 4+6 - -
01603 988 Protected - 4+6 - -
01603 989 Protected - 4+6 - -
01603 99 Protected - N/A - -