Contact Us

Have you received a call from 613-993-9620 or another phone number listed on our website?  These are public phone numbers for CSIS, and they have been spoofed.  Calls from these phone numbers asking for social insurance numbers or financial information are a scam.  We encourage Canadians to report such instances to the Canadian Antifraud Centre by phone at 1-888-495-8501 or here:

If you require immediate assistance, please call 9-1-1.

Reporting National Security Information

Telephone: 613-993-9620 or 1-800-267-7685

TTY and or TDD: 613-991-9228

Report a non-immediate threat to national security

Media Enquiries

Telephone: 613-231-0100

Contact media relations

Recruitment Enquiries

Frequently Asked Questions

General Enquiries

PO Box 9732 STN T
Ottawa ON K1G 4G4

Telephone: 613-993-9620
Facsimile: 613-231-0612
TTY and or TDD: 613-991-9228

Recruitment questions cannot be answered by telephone.

Access to Information and Privacy Coordinator

Toll Free: 1-877-995-9903
Phone: 613-231-0107
Fax: 613-842-1271

Make an access to information or personal information request

Find an office

Atlantic Region

P.O. Box 126, Station Central
Halifax NS B3J 3K5
Tel. 902-420-5900

British Columbia Region

P.O. Box 80629,
South Burnaby BC V5H 3Y1
Tel. 604-528-7400

Ottawa Region

P.O. Box 9732, Station T
Ottawa ON K1G 4G4
Tel. 613-998-1679 or 1-800-267-7685 toll-free (Ontario only)

Prairie Region

P.O. Box 47009
Edmonton AB T5J 4N1
Tel. 780-401-7800 or 1-800-661-5780 toll-free (Prairie only)

Quebec Region

P.O. Box 9732, Station T
Ottawa ON K1G 4G4
Tel. 514-393-5600 or 1-877-223-2265 toll-free (Quebec only)

Toronto Region

P.O. Box 9732, Station T
Ottawa ON K1G 4G4
Tel. 416-865-1480

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