All telephone inquiries go to the USPS Call Center:
1-800-ASK-USPS or 1-800-275-8777
Any questions that require local intervention from the appropriate branch manager listed below can be redirected by the call center for you or you will be told that the local postal official will call you back.
You may also find the information you need on-line at www.usps.com
Cambridge Postmaster
Michael Sullivan
770 Massachusetts Avenue
Cambridge MA 02139-9998
Main Office
Central Square
770 Massachusetts Avenue
Cambridge MA 02139-9998
Hours of Operation
Mon-Fri 7:30 a.m. - 7:00 p.m.
Sat 7:30 a.m. - 2:00 p.m.
Branch Postal Stations
Harvard Square
125 Mt Auburn Street
Cambridge MA 02238-9998
Hours of Operation
Mon - Fri 7:30 a.m. - 6:00 p.m.
*24 Hour Lobby Access to Automatic Postal Center*
Kendall Square
250 Main Street
Cambridge MA 02142-9998
Hours of Operation
Mon-Fri 8:0 0 a.m. -5:00 p.m.
24 Hour Lobby Access to Automatic Postal Center
MIT Station
84 Massachusetts Avenue
Cambridge MA 02139-9992
Hours of Operation
Mon-Fri 7:30 a.m.-5:00 p.m.
Porter Square
1953 Massachusetts Avenue
Cambridge MA 02140-9998
Hours of Operation
Mon-Fri 7:30 a.m. - 5:30 p.m.
Sat 7:30 a.m. - 2:00 p.m.
Inman Square
1309 Cambridge Street
Cambridge MA 02139-9991
Hours of Operation
Mon-Fri 10 a.m.-5:00 p.m.
East Cambridge
303 Cambridge Street
Cambridge MA -2141-9998
Hours of Operation
Mon-Fri 8:00 a.m.-5:00 p.m.
The Carrier Alert Program is intended to assist the elderly (65 and older) who live in Cambridge. The Program is free, and it offers home bound adults an extra measure of personal security. It works by cooperation between the United States Postal Service and the Cambridge Council on Aging.
To join the program you will have to fill out an application form. You provide names of the family members or friends to be contacted in case of an emergency. The Cambridge Council on Aging keeps this information confidential and uses it only if there is an emergency. Your letter carrier will make sure you pick up your mail from your mailbox. If the mail stars to accumulate, the Letter Carrier will contact the Council on Aging. The Council on Aging will then get in touch with your contacts to see if assistance is needed.
To obtain an application form and more information, please call the Council on Aging at 617-349-6055, Someone will be able to discuss the Carrier alert Program with you to see if it is right for your and then send you an application form. Once you are enrolled in the program the Postal Service will be notified.