01603 Area Code

Norwich

Area Code 01603 covers Norwich and the surrounding area.

The majority of numbers in the 01603 Area Code belong to normal landlines in Norwich, but it is possible that these numbers are being used elsewhere as virtual numbers.

There are multiple telephone companies operating in the 01603 Area Code and they are allocated blocks of numbers, which can be identified by the digits following the Area Code. If you would like to see more information about the telephone company for a specific number (or number range) then please search again with additional digits.

01603 area code information

Area Code: 01603
Location: Norwich
Call Costs: Normal landline rate
Area code required for local calls: No
Local number length: 6
Number format: 01603 ######
International number format: +44 1603 ######
Last code change: April 1995 from 0603.

Active providers and their dialing codes for area code 01603

(AQ) LIMITED: 01603 914
24 SEVEN CLOUD COMMUNICATIONS LTD: 01603 970
8x8 UK Limited: 01603 380
Affiniti Integrated Solutions Limited: 01603 954 01603 944 01603 535 01603 966 01603 294
Alnitak GmbH: 01603 938
Andrews & Arnold (Numbers) Ltd: 01603 321
Antheus Telecom Limited: 01603 983
API Telecom Limited: 01603 391
AQL Wholesale Ltd: 01603 34
Barritec Limited: 01603 318
Barritel Limited: 01603 315
Belgacom International Carrier Services SA: 01603 988
BT: 01603 971 01603 67 01603 43 01603 59 01603 956 01603 69 01603 45 01603 21 01603 70 01603 86 01603 531 01603 22 01603 30 01603 71 01603 87 01603 23 01603 72 01603 48 01603 88 01603 24 01603 570 01603 331 01603 73 01603 89 01603 551 01603 25 01603 74 01603 50 01603 26 01603 962 01603 75 01603 81 01603 536 01603 27 01603 76 01603 28 01603 964 01603 981 01603 77 01603 652 01603 78 01603 320 01603 61 01603 62 01603 40 01603 952 01603 63 01603 41 01603 953 01603 66 01603 986 01603 42
Buzz Networks Limited: 01603 339
Calltracks Limited: 01603 805 01603 384
Ccpro Solutions Limited: 01603 522
Citrus Telecommunications Ltd: 01603 525
Colt Technology Services: 01603 972 01603 973 01603 804 01603 363 01603 573 01603 575 01603 577 01603 985 01603 561
Content Guru Limited: 01603 941
Core Telecom Limited: 01603 523
DIDWW Ireland Limited: 01603 976
Digital Mail Limited: 01603 554
Digital Select Limited: 01603 949
Digital Space Group Limited: 01603 295 01603 913
Entanet International Ltd: 01603 982
EVE CONNECT LTD: 01603 579
FleXtel Limited: 01603 908
Gamma Telecom Holdings Ltd: 01603 987 01603 801 01603 937 01603 989 01603 915 01603 567 01603 957 01603 974 01603 959 01603 364 01603 977 01603 365 01603 978 01603 367 01603 333 01603 368 01603 51 01603 980 01603 369 01603 537 01603 574 01603 397 01603 576 01603 931 01603 967 01603 984 01603 542 01603 578
GCI Network Solutions Ltd: 01603 360 01603 314
GTT-EMEA LTD: 01603 903
Hello Telecom (UK) Limited: 01603 562
Hyperoptic Ltd: 01603 800
I-NET COMMUNICATIONS GROUP PLC: 01603 338
I.T Communications Limited: 01603 933
ICC Networks Ltd: 01603 392
iHub 2 Limited: 01603 955
Inclarity Communications Limited: 01603 790 01603 791 01603 795
Inet Telecoms Ltd (Voipfone): 01603 327
Internexus Networks Limited: 01603 563
Invade International Ltd: 01603 292
Invoco Ltd: 01603 334
IOVOX Limited: 01603 963 01603 398
IP Voice Networks Ltd: 01603 975
IP Wholesale Limited: 01603 324
Kalnet4U Ltd: 01603 552
KCOM Group Ltd: 01603 608
Linear Telecoms Limited: 01603 390
Liquid 11 Limited: 01603 381
Localphone Limited: 01603 916
Lumen Technologies UK Limited: 01603 326 01603 550 01603 553
Magrathea Telecommunications Limited: 01603 857 01603 858 01603 859 01603 850 01603 851 01603 855 01603 856
Media Hawk Ltd: 01603 943 01603 965 01603 969
Minotaur Telecom Limited: 01603 383
Nationwide Telephone Assistance Ltd: 01603 299
Net-Work Internet Ltd: 01603 290
New Call Telecom Limited: 01603 325
Nexbridge Communications Limited: 01603 564
Nodemax Limited: 01603 310
Number Services Ltd.: 01603 979
Numbergroup Utilities Ltd: 01603 389 01603 399
Numbers Plus Ltd: 01603 529
Orange Business Holdings UK Limited: 01603 942
Plus Telecom Limited: 01603 524
Redcentric Solutions Limited: 01603 58
Redwood Technologies Ltd: 01603 950
Resilient PLC: 01603 918
Served Up Limited: 01603 316
Simwood eSMS Limited: 01603 555
SiPalto Ltd: 01603 539
Six Degrees Technology Group Limited: 01603 901
Sky UK Limited: 01603 387 01603 528 01603 936 01603 940 01603 362 01603 328 01603 569 01603 571 01603 945 01603 961 01603 946 01603 395 01603 947 01603 948 01603 335 01603 651 01603 609 01603 932 01603 322 01603 526 01603 560 01603 527 01603 935
Spitfire Network Services Limited: 01603 917
Suretec Systems Ltd: 01603 388
Syntec Limited: 01603 311
TalkTalk Communications Limited: 01603 568 01603 958 01603 960 01603 393 01603 920 01603 572 01603 926 01603 396 01603 927 01603 928 01603 929 01603 291 01603 951 01603 323
Telappliant Ltd: 01603 541
Telecom2 Limited: 01603 296
Telecoms World PLC: 01603 329
TelNG Limited: 01603 557
TelXL Ltd: 01603 909
TGL Services (UK) Ltd: 01603 530 01603 532 01603 533 01603 534
TTNC Limited: 01603 905
Twilio Ireland Limited: 01603 361
Vectone Mobile Limited: 01603 332
Verizon UK Limited: 01603 37
Virgin Media Limited: 01603 641 01603 642 01603 803 01603 44 01603 643 01603 644 01603 46 01603 645 01603 806 01603 47 01603 646 01603 807 01603 647 01603 808 01603 49 01603 648 01603 809 01603 649 01603 640 01603 912
Vodafone Ltd (C&W): 01603 35 01603 545 01603 68 01603 546 01603 20 01603 600 01603 547 01603 601 01603 548 01603 602 01603 549 01603 603 01603 604 01603 919 01603 605 01603 606 01603 607 01603 82 01603 83 01603 84 01603 906 01603 540 01603 656 01603 658 01603 659 01603 543 01603 544
Voiceflex Limited: 01603 558
VoiceHost Limited: 01603 904 01603 559
VoIP-Un Limited: 01603 293
Vonage Limited: 01603 319
Voxbone SA: 01603 298 01603 650 01603 385
WAVECREST NETWORKS LIMITED: 01603 907
WIGHTFIBRE LIMITED: 01603 337
Windsor Telecom Ltd: 01603 520
YayYay Limited: 01603 336
Ziron Limited: 01603 394