I am currently job hunting. I was handed a notice the other day and told to keep these numbers someplace safe. I think they are worth sharing online quite frankly.
To File or Reopen a claim: 877-626-6800
File for an extension: 888-998-8418
Problem resolution: 617-626-5400
Customer Service: 617-626-6535
Check Status: 617-626-6563
Online service support: 617-626-5700
Reset Pin : 617-626-6943
Problem filing: 617-626-6560
Phone hours 8:30am – 4:30pm Monday Through Friday
Holidays with No Phone Service December 26 and January 2
For more info visit: http://www.mass.gov/lwd/unemployment-insur/about-dua/
The Bensleygram 