Prefix 617-250 — Cambridge, MA
A phone number starting 617-250 was issued in the Cambridge rate center of MA — part of area code 617.
The assigned code holder is TC SYSTEMS, INC., operating company number 7135. This is a pooled prefix — expect numbers within it to be split across more than one carrier in 1,000-number blocks.
A scammer can display 617-250 without ever touching MA. When in doubt, end the call and reach the company or agency through its official website; unwanted robocalls belong in the FTC's fraud report queue.
Cambridge is part of the Boston-Cambridge-Newton, MA-NH Metropolitan Statistical Area. For routing purposes it sits in LATA 128. Numbers here keep Eastern time.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 617-247 | Boston | VERIZON NEW ENGLAND INC. |
| 617-248 | Boston | VERIZON NEW ENGLAND INC. |
| 617-249 | Quincy | MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
| 617-251 | Cambridge | OMNIPOINT MIAMI E LICENSE, LLC |
| 617-252 | Cambridge | VERIZON NEW ENGLAND INC. |
| 617-253 | Cambridge | VERIZON NEW ENGLAND INC. |
FAQ
Where is 617-250 located?
The prefix is assigned to the Cambridge rate center in MA, area code 617. It is part of the Boston-Cambridge-Newton, MA-NH Metropolitan Statistical Area.
Which company owns 617-250 numbers?
TC SYSTEMS, INC. holds the code, but the prefix is pooled — individual thousands-blocks can be assigned to other carriers, and numbers may be ported to any provider.
Is a call from 617-250 safe to answer?
The prefix itself says nothing about the caller. Legitimate Cambridge businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.