Contact information

xkcd inc

Phone number: 508-293-1517

Email: orders@xkcd.com

Address: xkcd inc., 68 Harrison Avenue, Ste 605 PMB 75312, Boston MA 02111-1929, United States

(No customer service or walk-ins at this location)

Please don't send any returns to this address! 
For returns, please use our returns portal or reach out to us via e-mail.