Contact the CNA

If this site does not answer all of your questions, please feel free to contact us with any comments or questions you may have.

Business Hours

Our official business hours are from 9:00 AM to 5:00 PM Eastern Time, Monday to Friday, excluding statutory holidays in the province of Ontario.

CNA Customer Support

Telephone: 613-702-0016

Fax: 613-702-0017

For all general inquiries
For submission of all CO Code applications and correspondence (Part 1s, Part 2s and Part 4s)
For applications and correspondence regarding other numbering resources including, but not limited to, Non-Geographic Codes, ESRDs, CICs, MNCs and MBIs

Note: Using the above email addresses will make sure that all the appropriate team members are included in your request and ensures that your request will be addressed in a timely manner if a specific team member is unavailable. It is not necessary to include individual staff member email addresses when corresponding with the above addresses.

CNA Feedback

You may submit positive or critical feedback to the CNA about our website or services by submitting an email to the following address:

For all feedback submissions

CNA Staff

Name Title Phone Email
Kelly T. (K.T.) Walsh CNA Program Manager 613-702-0016 ext. 205
Suresh Khare Central Office Code Manager 613-702-0016 ext. 201
Fiona Clegg Numbering Resource Administrator 613-702-0016 ext. 202
Natalie Lessard Numbering Resource Administrator
(pour le service en Français)
613-702-0016 ext. 203
David Comrie Numbering Resource Administrator 613-702-0016 ext. 204
Fola Omotayo System Administrator 613-702-0016 ext. 206

CNA Mailing Address

Canadian Numbering Administrator
150 Isabella Street, Suite 605
Ottawa, ON K1S 5H3

The role of the Canadian Numbering Administrator (CNA) is being performed by COMsolve Inc. under contract with Canadian Numbering Administration Consortium Inc. (CNAC). The CNAC Privacy Policy and the Website Terms of Use may be found using the following links:
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