Browse the Cambridge phone book to find residents and businesses throughout Middlesex County. If you received a call from an unrecognized number with area code 857 or 617, use our lookup tool to see who it belongs to before you call back.
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Find phone numbers for city businesses, public services, and organizations by category.
Got a phone call or message from a Cambridge phone number you don't recognize? Before you answer, call back, or reply, use our phone number lookup service to find out who called you.
Massachusetts phone numbers use area codes 617, and 857. Select a code below to look up numbers starting with it.
According to the National Do Not Call Registry, Massachusetts residents filed 33,184 complaints about unwanted calls in 2024:
Phone numbers reported to the FTC as unwanted calls by Cambridge residents in the last 30 days.
+1 (609) 657-1376
Reducing your debt (credit cards, mortgage, student loans)
1 report ·
+1 (617) 324-8853
Calls pretending to be government, businesses, or family and friends
1 report ·
+1 (708) 972-1963
Other
1 report ·
+1 (502) 273-2370
Other
1 report ·
+1 (434) 253-2143
Reducing your debt (credit cards, mortgage, student loans)
1 report ·
+1 (617) 927-1878
Other
1 report ·
+1 (617) 300-8303
Other
1 report ·
+1 (617) 481-6307
Other
1 report ·
+1 (601) 373-7540
Calls pretending to be government, businesses, or family and friends
1 report ·
+1 (855) 550-5390
Reducing your debt (credit cards, mortgage, student loans)
1 report ·
Received a call from a business but aren't sure it's really them? Middlesex County, according to U.S. Census Bureau data, includes 37,452 firms and 44,541 establishments employing 935,121 people.
| County | Percent of City | Firms | Establishments |
|---|---|---|---|
| Middlesex | 100.00% | 37452 | 44541 |
Use our reverse lookup service to verify whether a number belongs to a legitimate local business, not scammers spoofing local numbers to gain your trust.
If you receive fraudulent calls or suspect a scam attempt, report it to reportfraud.ftc.gov or local police department using the following contacts:
Cambridge has a population of 118403 people (median age of 30.60) - thousands of potential callers you might not recognize: neighbors, an old contact, or someone you actually want to talk to. Use our local white pages to find residents' phone numbers and addresses sourced from Middlesex County, Massachusetts state, and other public records.