Prefix 617-301 — Cambridge, MA
617-301 identifies a block of numbers in Cambridge, MA, within the 617 area code. Every US prefix is tied to exactly one rate center; this one is Cambridge.
The rate center lies in the Boston-Cambridge-Newton, MA-NH Metropolitan Statistical Area. The serving LATA is 128. Local time follows the Eastern zone.
Treat the on-screen number as a hint, not evidence — 617-301 can be spoofed like any US prefix. If a call feels off, verify through an official callback number and file a complaint with the FCC or FTC.
NANPA's central-office code records list NEW CINGULAR WIRELESS PCS, LLC - DC (OCN 4036) as the code holder, assigned July 13, 2004. Because 617-301 participates in thousands-block pooling, individual 1,000-number blocks may belong to other carriers than the code holder.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 617-298 | Milton | VERIZON NEW ENGLAND INC. |
| 617-299 | Cambridge | MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
| 617-300 | Cambridge | TC SYSTEMS, INC. |
| 617-302 | Quincy | YMAX COMMUNICATIONS CORP. - MA |
| 617-303 | Boston | FREEDOM RING COMMUNICATIONS, LLC |
| 617-304 | Boston | METROPCS, INC. |
FAQ
Where is 617-301 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 617-301 numbers?
NEW CINGULAR WIRELESS PCS, LLC - DC 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 617-301 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.