The 857 area code is a telephone area code serving Boston and several surrounding communities in Massachusetts. To start a free reverse phone lookup, simply enter the full 10-digit number (including the 857 area code) below and access available caller information such as name, address, and more.
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The 857 area code covers the same geographic area as area code 617, encompassing the city of Boston and several surrounding communities in Massachusetts.
Area code 857 is an overlay of area code 617. Area code 617 was created in October 1947. Area code 857 was overlaid onto 617 on May 2, 2001. Since then, 10-digit local dialing has been mandatory.
Area code 857 is a General Purpose Code which was placed in service on January 1, 1947.
Our reverse phone lookup will analyze the three-digit prefix of any 857 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.
| Company | Number of Prefixes |
|---|---|
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 24 |
| OMNIPOINT MIAMI E LICENSE, LLC | 20 |
| SPRINT SPECTRUM, L.P. | 10 |
| METROPCS, INC. | 8 |
| VERIZON NEW ENGLAND INC. | 8 |
| NEW CINGULAR WIRELESS PCS, LLC - DC | 6 |
| BANDWIDTH.COM CLEC, LLC - MA | 5 |
| BROADVIEW NETWORKS, INC. - MA | 5 |
| LEVEL 3 COMMUNICATIONS, LLC - MA | 4 |
| XO MASSACHUSETS, INC. | 4 |
| ONVOY, LLC - MA | 3 |
| PAETEC COMMUNICATIONS, INC. - MA | 3 |
| COMCAST IP PHONE, LLC | 2 |
| CTC COMMUNICATIONS CORP. - MA | 2 |
| PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA | 2 |
| TC SYSTEMS, INC. | 2 |
| BARR TELL USA, INC. - MA | 1 |
| CENTURYLINK COMMUNICATIONS, LLC | 1 |
| COMMIO, LLC | 1 |
| DSCI, LLC | 1 |
| LOCAL ACCESS LLC - MA | 1 |
| METROPOLITAN TELECOMMUNICATIONS OF MASS DBA METTEL | 1 |
| MOSAIC NETWORX LLC - MA | 1 |
| NUSO, LLC | 1 |
| RCLEC, INC. | 1 |
| TELENGY LLC | 1 |
| VONAGE AMERICA LLC | 1 |
| WIDE VOICE, LLC - MA | 1 |
| Rate Center | Number of Prefixes |
|---|---|
| BOSTON | 72 |
| CAMBRIDGE | 12 |
| BROOKLINE | 6 |
| BRIGHTON | 4 |
| DORCHESTER | 4 |
| JAMAICA PL | 4 |
| ROXBURY | 4 |
| NEWTON | 3 |
| CHARLESTN | 2 |
| QUINCY | 2 |
| WATERTOWN | 2 |
| BELMONT | 1 |
| CHELSEA | 1 |
| HYDE PARK | 1 |
| MILTON | 1 |
| SO BOSTON | 1 |
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