The new VSC addresses are as follows:
H-1B Cap Cases:
USCIS-VSC
Attn: H-1B Cap
4 Lemnah Drive
St. Albans, VT 05479-0001
H-1B U.S. Master’s Exemption Cases:
USCIS-VSC
ATTN: H-1B U.S. Masters Cap
4 Lemnah Drive
St. Albans, VT 05479-0001
The VSC filing addresses for all other H-1B petitions (including those requesting premium processing service) remain the same as FY 2010. There will be a USCIS press release in the near future clarifying this issue.