01556 Area Code - Castle Douglas

The 01556 area code is used for Castle Douglas (Council of Dumfries and Galloway) and the areas directly surrounding Castle Douglas, which includes 11 distinct locations. Most 01556 numbers are used for landlines. However, they can also be purchased by companies or organizations to be used for services that don’t have any connection to the Castle Douglas area.

Previously, the area used 0556 as their area code. This changed in April 1995 during the phONEday event, where it was changed to the 01556 area code to accommodate the growing population and supplement the shrinking supply of phone numbers in Dumfries and Galloway.

Number Structure

Area CodeNumber
01556xx xxxx

Locations Covered

Cost of calling 01556 numbers

Typically, calls to the 01556 area code are very affordable and are some of the cheapest apart from freephone numbers. During peak times when calling from a landing, expect to pay between 10p to 12p per minute. In the evening or on the weekend, it will cost you between 5p and 10p per minute. If you are calling from a mobile phone, these costs increase to 30p to 50p per minute.

Prefixes and Providers

CodeProviderAssigned
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01556 20TelNG Limited28/02/2007
01556 21Voiceflex Limited27/09/2007
01556 22Redcentric Solutions Limited05/06/2015
01556 23VoIP-Un Limited31/10/2007
01556 25AQL Wholesale Ltd03/01/2008
01556 26Localphone Limited04/05/2007
01556 277Digital Space Group Limited15/03/2016
01556 288TalkTalk Communications Limited20/01/2012
01556 289TalkTalk Communications Limited20/01/2012
01556 29Telecom2 Limited10/09/2009
01556 30Digital Space Group Limited14/05/2008
01556 31Nodemax Limited15/07/2008
01556 323Vodafone Ltd (Thus)04/01/2012
01556 33Net-Work Internet Ltd21/07/2008
01556 350Voxbone SA09/12/2011
01556 37Solutios Limited29/10/2008
01556 38Mars Communications Limited04/02/2009
01556 39IPV6 Limited13/02/2009
01556 40Andrews & Arnold (Numbers) Ltd19/03/2009
01556 41Nexus Telecommunications Limited11/06/2009
01556 42Vectone Mobile Limited06/07/2009
01556 43CFL Communications Ltd13/07/2009
01556 450Digitech Solutions Global Limited27/04/2010
01556 451Vodafone Ltd (C&W)05/09/2013
01556 452Calltracks Limited31/01/2014
01556 453VoiceHost Limited05/10/2010
01556 454Suretec Systems Ltd06/05/2010
01556 455Atomstream Limited12/05/2010
01556 456Windsor Telecom Ltd22/07/2010
01556 457Inet Telecoms Ltd (Voipfone)19/08/2010
01556 458Affiniti Integrated Solutions Limited02/12/2010
01556 459Telephone Box Limited10/12/2010
01556 471Phone Co-Op Numbering Limited23/12/2010
01556 473Invosys Limited13/01/2012
01556 474Sky UK Limited02/07/2013
01556 475IP Wholesale Limited01/06/2017
01556 476Nexbridge Communications Limited08/03/2012
01556 478Metronet (UK) Limited21/05/2019
01556 480Invoco Ltd26/09/2011
01556 481Orbtalk Limited10/11/2011
01556 482Hello Telecom (UK) Limited11/11/2011
01556 483Internexus Networks Limited21/11/2011
01556 484Simwood eSMS Limited23/02/2012
01556 485API Telecom Limited30/03/2012
01556 486ICC Networks Ltd17/04/2012
01556 487IOVOX Limited03/07/2012
01556 489Ziron Limited30/07/2012
01556 490Minotaur Telecom Limited05/02/2013
01556 491Media Hawk Ltd10/04/2013
01556 492Kalnet4U Ltd22/05/2013
01556 493I-NET COMMUNICATIONS GROUP PLC04/07/2013
01556 494Content Guru Limited12/10/2012
01556 495iHub 2 Limited18/05/2016
01556 496Redwood Technologies Ltd15/11/2018
01556 498XoverX Ltd02/05/2013
01556 50BT15/07/1994
01556 51Gamma Telecom Holdings Ltd12/04/2005
01556 52BT02/08/1995
01556 530Linear Telecoms Limited12/10/2010
01556 531DIDWW Ireland Limited27/01/2020
01556 532ICUK Computing Services Limited17/06/2020
01556 533Club Communications Ltd31/07/2018
01556 534I.T Communications Limited10/09/2019
01556 535Dial 9 Communications Limited10/12/2019
01556 53624 SEVEN CLOUD COMMUNICATIONS LTD17/01/2020
01556 537SiPalto Ltd06/07/2020
01556 538Belgacom International Carrier Services SA14/10/2019
01556 539Mi Telecom Limited03/07/2020
01556 540VOXYONDER NETWORK SERVICES UK LTD16/09/2020
01556 55Served Up Limited27/05/2008
01556 56Magrathea Telecommunications Limited24/09/2004
01556 57FleXtel Limited24/10/2005
01556 58Syntec Limited20/12/2005
01556 590Digitech Solutions Global Limited22/06/2012
01556 60BT15/07/1994
01556 61BT15/07/1994
01556 62BT15/07/1994
01556 63BT15/07/1994
01556 64BT15/07/1994
01556 65BT15/07/1994
01556 66BT15/07/1994
01556 67BT15/07/1994
01556 68BT15/07/1994
01556 69BT15/07/1994
01556 700Inclarity Communications Limited08/11/2012
01556 701Inclarity Communications Limited08/11/2012
01556 702Inclarity Communications Limited08/11/2012
01556 705Inclarity Communications Limited08/11/2012
01556 73(AQ) LIMITED19/10/2011
01556 747Spitfire Network Services Limited10/11/2011
01556 75TTNC Limited12/03/2014
01556 78Barritel Limited15/08/2006
01556 79Nationwide Telephone Assistance Ltd01/10/2007
01556 800YayYay Limited23/04/2015
01556 801Adepteo Limited13/12/2016
01556 802Colt Technology Services20/06/2016
01556 803I.T Communications Limited25/04/2017
01556 804Resilient PLC14/05/2014
01556 806Number Services Ltd.22/11/2018
01556 807Fuse 2 Communications Ltd03/07/2017
01556 809IP Voice Networks Ltd20/09/2017

Map of Castle Douglas

Area Codes in this Council (Dumfries and Galloway)

CodeCity
01387Dumfries
013873Langholm
01461Gretna
01557Kirkcudbright
01576Lockerbie
01581New Luce
01644New Galloway
01659Sanquhar
01671Newton Stewart
01683Moffat
01776Stranraer
01848Thornhill
01988Wigtown

All Area Codes About 01, 02 Numbers

Numbers in the UK

  • 01, 02 Landlines, Geographical
  • 03 Landlines, Non-geographical
  • 05 Corporate, VOIP
  • 07 Mobile, Personal Numbers
  • 08 Free, Paid Services
  • 09 Premium Services
  • 1x Social Services
  • xxx 3-digit Numbers
  • UK Phone Code Guide

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