Prefix 617-304 — Boston, MA
The 617-304 prefix belongs to area code 617 and is anchored to the Boston rate center (MA). In NANP terms, the prefix — or NXX — determines the rate center a number is billed against.
Boston 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.
The assigned code holder is METROPCS, INC., operating company number 5562, assigned May 8, 2002. This is a pooled prefix — expect numbers within it to be split across more than one carrier in 1,000-number blocks.
Caller ID showing 617-304 is not proof the call came from Boston: spoofing and porting both detach numbers from their origin. To verify a caller, hang up and dial the organization's published number, and report suspicious calls to the FTC.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 617-301 | Cambridge | NEW CINGULAR WIRELESS PCS, LLC - DC |
| 617-302 | Quincy | YMAX COMMUNICATIONS CORP. - MA |
| 617-303 | Boston | FREEDOM RING COMMUNICATIONS, LLC |
| 617-305 | Boston | VERIZON NEW ENGLAND INC. |
| 617-306 | Boston | NEW CINGULAR WIRELESS PCS, LLC - DC |
| 617-307 | South Boston | PAETEC ITEL, LLC |
FAQ
Where is 617-304 located?
The prefix is assigned to the Boston rate center in MA, area code 617. It is part of the Boston-Cambridge-Newton, MA-NH Metropolitan Statistical Area.
Which company owns 617-304 numbers?
METROPCS, 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 617-304 safe to answer?
The prefix itself says nothing about the caller. Legitimate Boston businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.