617 Area Code
The 617 area code serves the city of Boston and several surrounding communities in Massachusetts.
Federal Data
State Data
County Data
City Data
The 617 area code serves the city of Boston and several surrounding communities in Massachusetts.
Federal Data
State Data
County Data
City Data
The 617 area code covers the city of Boston and several surrounding communities in Massachusetts, largely coextensive with the inner ring of Greater Boston.
Area code 857 was overlaid onto area code 617 on May 2, 2001. Since then, 10-digit local dialing has been mandatory.
Area code 617 is a general purpose code which was placed in service on January 1, 1947.
Our Massachusetts phone number lookup service will analyze the three-digit prefix of any 617 area code phone number and will show which telecommunications company and rate center it was initially assigned to. This prefix code data may help to determine the U.S. carrier, Massachusetts geographic region, and local calling area associated with the phone number.
Phone numbers follow the following structure under the North American Numbering Plan:
Understanding the area code can help you determine if a call is local to your area. However, keep in mind that due to mobile number portability and VoIP services, the caller may be anywhere in the United States, so it’s best to search for the most recent phone number details.
| Company | Number of Prefixes |
|---|---|
| VERIZON NEW ENGLAND INC. | 305 |
| NEW CINGULAR WIRELESS PCS, LLC - DC | 66 |
| SPRINT SPECTRUM, L.P. | 40 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 35 |
| TC SYSTEMS, INC. | 31 |
| XO MASSACHUSETS, INC. | 21 |
| LEVEL 3 COMMUNICATIONS, LLC - MA | 19 |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA | 19 |
| GLOBAL CROSSING LOCAL SERVICES, INC. - MA | 18 |
| RCN TELECOM SERVICES, INC. - MA | 18 |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 17 |
| CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC | 14 |
| OMNIPOINT MIAMI E LICENSE, LLC | 13 |
| COMCAST IP PHONE, LLC | 11 |
| PAETEC COMMUNICATIONS, INC. - MA | 11 |
| CTC COMMUNICATIONS CORP. - MA | 10 |
| AT&T - LOCAL | 8 |
| BROADVIEW NETWORKS, INC. - MA | 8 |
| BANDWIDTH.COM CLEC, LLC - MA | 4 |
| LOCAL ACCESS LLC - MA | 4 |
| DSCI, LLC | 2 |
| YMAX COMMUNICATIONS CORP. - MA | 2 |
| AMERICAN MESSAGING SERVICES, LLC | 1 |
| FREEDOM RING COMMUNICATIONS, LLC | 1 |
| ONVOY, LLC - MA | 1 |
Carrier names have been updated from their original FCC assignments to reflect current companies following mergers, acquisitions, and rebranding. Updates were determined using AI-assisted research and may not be accurate or reflect up to date changes. This data is provided without warranties of accuracy or completeness.
| Rate Center | Number of Prefixes |
|---|---|
| BOSTON | 260 |
| CAMBRIDGE | 95 |
| NEWTON | 38 |
| QUINCY | 35 |
| BROOKLINE | 32 |
| BRIGHTON | 20 |
| DORCHESTER | 20 |
| SOMERVILLE | 18 |
| JAMAICA PL | 16 |
| ROXBURY | 15 |
| MILTON | 14 |
| EASTBOSTON | 13 |
| WATERTOWN | 13 |
| CHARLESTN | 12 |
| CHELSEA | 11 |
| EVERETT | 11 |
| HYDE PARK | 11 |
| SO BOSTON | 10 |
| WALTHAM | 8 |
| BELMONT | 7 |
| SAUGUS | 7 |
| DEDHAM | 4 |
| WINTHROP | 4 |
| MALDEN | 2 |
| KINGSTON | 1 |
| MELROSE | 1 |
| WEYMOUTH | 1 |
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