Carrier ID Codes

Carrier Identification Codes (CICs) were developed to enable the routing and billing of telecommunications traffic from the local access service providers to specific inter-exchange and other service providers within the North American Numbering Plan (NANP) telecommunications network. Each CIC, in the XXXX format, identifies a service provider that has purchased Feature Group B (FGB) and/or Feature Group D (FGD) access services from the local access service provider.

• Feature Group B (FGB) CIC: A FGB Carrier Access Code (CAC) is a dialing sequence (comprised of 7 digits) that can be used by the general public to access a preferred long distance service provider. The CAC is presently in the format of 950-XXXX, where the XXXX is the Carrier Identification Code (CIC).
• Feature Group D (FGD) CIC: The FGD CIC, like FGB, allows for trunk side access to the local access provider by another service provider and in addition, it allows for pre-subscription to a chosen long distance carrier. If a user wishes to place a long distance call via a long distance carrier to which the telephone is not pre-subscribed, then the appropriate FGD CAC must be dialed first; it is in the format of 101XXXX. The casual dialing sequences to access the carrier to which the telephone is not pre-subscribed is 101XXXX + 1/0 + Area Code (NPA) + the telephone number.

Carrier Identification Codes in Canada are assigned according to the Industry Numbering Committee (INC) Carrier Identification Code Assignment Guidelines, as accepted or modified by the Canadian Steering Committee on Numbering (CSCN) and in accordance with the CSCN CIC Adjunct. If you wish to apply for an assignment, fill out the application form included in the assignment guidelines, and return it to the Canadian Numbering Administrator.

The Canadian Radio-television & Telecommunications Commission approved Canadian Adjunct to the INC Carrier Identification Code (CIC) Assignment Guidelines and associated documents are available below.  They are accessed directly from the CRTC web resources:

• Canadian Adjunct to the INC Carrier Identification Code (CIC) Assignment Guidelines
• Appendix A - Carrier Identification Code (CIC) Request and Confirmation Forms
• Appendix B - Access / Usage Report Requirements For Carrier Identification Codes

Click below to access the CIC Codes currently assigned in Canada:

• CSV version (can be used with most if not all spreadsheet programs)
• HTML version (standard web page format)

The complete list of CIC Codes assigned in the NANP area may be found at http://www.nanpa.com.

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