Chair Richard Blumenthal (CT), Amy Klobuchar (MN), Chris Coons (DE), Mazie Hirono (HI), Alex Padilla (CA), Jon Ossoff (GA)
Majority Office: 202-224-2823
Ranking Member Josh Hawley (MO), John Kennedy (LA), Marsha Blackburn (TN), Mike Lee (UT), John Cornyn (TX)
Minority Office: 202-224-4224
If you’re in those states, please call their D.C. office and read them the comment you’re leaving here.
Source: manned phones fielding constituent calls earlier in my career.
Local or legislative?
I've never met a Senator's leg team that doesn't compile notes on active issues from constituents upstream. (Granted, it's a handful of teams.)