Canadian Steering Committee on Numbering: Guidelines and Numbering Links

Canadian Numbering and Dialing Plan

CSCN Adjunct to the CISC Administrative Guidelines

Numbering Plan exhaust issues

• Canadian NPA Relief Planning Guideline, Version 8.0, dated 15 May 2023
  • Appendix A - Issues to be considered during NPA Relief Planning & Implementation
  • Appendix B - Canadian NPA Relief Planning Timeline
  • Appendix C - Initial Planning Document Outline
  • Appendix D - Planning Document Outline
  • Appendix E - Relief Implementation Plan Outline
  • Appendix F - Jeopardy Contingency Plan Example
    • Appendix F Form - Supplementary Form for a Growth CO Code Application
  • Appendix G - Sample Planning Letter
  • Appendix H - Prior Relief Methods
  • Appendix I - Proposal for Relief of an Overlay NPA Complex Outline
  • Appendix J - Expedited Process for Deferral of Relief
• Canadian Numbering Resource Utilization Forecast (C-NRUF) Guideline, Version 6.0 dated 1 November 2024
• Canadian Non-Geographic Code Assignment Guideline, Version 1.1 dated 6 February 2018
• Central Office Code (NXX) Assignment Guideline, Version 12.0, dated 1 November 2024
  • Part 1 - (MS Word) Central Office Assignment Request Forms
  • Part 2 - (MS Word) Routing and Rating Information
  • Part 3 - (MS Word) Administrator's Response/Confirmation Form
  • Part 4 - (MS Word) Confirmation of Code Activation Form
  • Appendix A - (MS Word) Audits
  • Appendix B - (MS Word) Months to Exhaust Certification Worksheet (14 May 2010)
  • Appendix C - (MS Word) Timelines
  • Appendix D - (MS Word) Plant Test Codes
  • Appendix E - (MS Word) Location Routing Numbers
  • Appendix F - (MS Word) Aging and Administration of Disconnected Telephone Numbers
  • Appendix G - (MS Word) Reserved and Held Telephone Numbers - No longer in effect
  • Appendix H - (MS Word) Special Administrative Practises with respect to Failing Service Providers

800 Toll Free calling issues

• Canadian Industry Guidelines for 800 Toll Free Service, Release 2, dated 21 June 1996
  • Revisions to the Canadian Industry Guidelines for 800 Toll Free Services dated 27 February 1997
• Canadian Interconnection Liaison Committee 8XX Toll Free SAC Industry Test Plan, Version 1.1 January 16, 1996

Canadian Adjunct

• Canadian Adjunct to the 555 NXX Line Number Reference Document
• Canadian Adjunct to the INC Personal Communications Services (PCS) 5YY NXX Code Assignment Guidelines
• Canadian Adjunct to INC 800-855 Number Assignment Guidelines (version 1.0)
• Canadian Adjunct to the Industry Numbering Committee (INC) 9YY NXX Code Assignment Guidelines (version 4)
• Canadian Adjunct to International Inbound (INT/NPA/NXX) Reference Document
• Canadian Adjunct to the INC NPA Allocation Plan and Assignment Guidelines (Version 2, 28 January 2011)

Miscellaneous Guidelines

• Canadian Adjunct Carrier Identification Code (CIC) Assignment Guidelines, version 5.1, updated 2 February 2017
  • Appendix A to the CIC Assignment Guidelines - Canadian Carrier CIC request form
  • Appendix B to the CIC Assignment Guidelines - Access/Usage Report Requirements for CIC
  • Informal notes on CIC Assignments dated September 1996
  • CRTC Staff letter dated 29 July 1998 re:Transition from 3 to 4 Digit CIC
• Global Title Translation (GTT) Point Code Industry Notification Process dated August 1, 2014
  • Recipient Point Code Distribution list
  • Non-disclosure agreement
  • Appendix 3 - GTT Notification Form (template) (versions 1 and 2) dated 1 August 2014
• Canadian International Mobile Subscription Identity (IMSI) Assignment Guideline, version 6.0, dated 6 July 2022
• Canadian System Identifier (SID) Assignment Guidelines
• Canadian Emergency Service Routing Digit (ESRD) Block Assignment Guideline (version 6) dated 23 November 2020
• Canadian NPA 600 NXX Code Assignment Guideline
• Canadian MIN Block Identifier (MBI) Assignment guideline - Version 4.1 dated 29 April 2015
• Canadian N11 Notification & Implementation Guideline

Other numbering guidelines on Canadian Numbering Administrator (CNA) website include

• Vertical Service Assignment Guidelines

Other numbering links

Alliance for Telecommunications Industry Solutions (ATIS)
Canadian Local Number Portability Consortium (CLNPC)
Canadian Numbering Administration Consortium (CNAC)
Industry Numbering Committee (INC)
International Telecommunications Union (ITU)
National Exchange Carriers Association (NECA)
North American Numbering Council (NANC)
North American Numbering Council (NANC) Chair Website
North American Numbering Plan Administration (NANPA)
Number Portability Administration Center (NPAC)
Telecom Routing Administration

Date modified:

2024-11-08