North America and South America

Monday through Friday from 8:00 a.m. – 5:00 p.m. customer business hours (except major US holidays).
Email support@gigamon.com
Support Telephone Numbers:
+1 855-430-0813 (Toll Free)
+1 408 260-5616
US Office Closed:
January 2, February 20, May 29, July 3-4, September 4, November 23-24, December 25, December 26

Asia Pacific and Japan

Monday through Friday* from 8:00 a.m. – 5:00 p.m. customer business hours (except major HK holidays).
Email apac_support@gigamon.com
Support Telephone Number:
Hong Kong: +852 800 966 289 (Toll Free)
China: +864 006 039 071
Singapore: +658 004 411 407
Australia: +611 800 463 107 (Toll Free)
Malaysia: +60 1800 817 969 (Toll Free)
Japan: 006633813126 (within country)
Other APAC phone number: +852 3975 3019
Hong Kong Office Closed:
January 2, January 27-31, April 4, April 14-17, May 1-3, May 30, October 2, October 5, October 27, December 25-27

Europe, Russia, and the Middle East

Monday through Friday from 8:00 a.m. – 5:00 p.m. customer business hours (except major UK holidays).
Email emea_support@gigamon.com
Support Telephone Numbers:
UK: +44 8008 021 055 (Toll Free)
UK: +44 118 3247 058
Germany: +49 8007 234 739 (Toll Free)
France: +33 8009 458 12 (Toll Free)
UAE/ Middle East: +971 800 035 704 110
Moscow: +81 0 800 2580 2044
Europe and Russia: +44 (0) 1344 859 880
Middle East Support: +44 (0) 1344 859 886
UK Office Closed:
January 2, April 14-17, May 1, May 29, August 28, December 25-27