| District of Rhode Island area codes: 401 | |
|---|---|
| Country | United States |
| State/Province | Rhode Island |
| Major City | Providence |
| Time Zone | Eastern (UTC-05:00) |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 401-337 | Providence | Providence, RI | Mcimetro Access Transmission Services LLC |
| 401-338 | Providence | Providence, RI | New Cingular Wireless PCS - DC |
| 401-339 | Providence | Providence, RI | New Cingular Wireless PCS - DC |
| 401-340 | Providence | Providence, RI | Cellco Partnership DBA Verizon Wireless |
| 401-341 | Newport | Newport, RI | Verizon New England Inc. |
| 401-342 | Bristol | Bristol, RI | Level 3 Communications |
| 401-343 | Washington | Hope Valley, RI | AT&T Local |
| 401-344 | Newport | Newport, RI | Level 3 Communications |
| 401-345 | Providence | Providence, RI | Sprint Spectrum L.p. |
| 401-346 | Providence | Providence, RI | Sprint Spectrum L.p. |
| 401-347 | Providence | Providence, RI | Neutral Tandem-rhode Island |
| 401-348 | Washington | Westerly, RI | Verizon New England Inc. |
| 401-349 | Kent | East Greenwich, RI | Cox Rhode Island Telecom Inc |
| 401-350 | Providence | Providence, RI | Verizon New England Inc. |
| 401-351 | Providence | Providence, RI | Verizon New England Inc. |
| 401-352 | Kent | Warwick, RI | Choice One Communications Of Rhode Island |
| 401-353 | Providence | Providence, RI | Verizon New England Inc. |
| 401-354 | Providence | Providence, RI | Verizon New England Inc. |
| 401-356 | Providence | Woonsocket, RI | Cox Rhode Island Telecom Inc |
| 401-357 | Providence | Woonsocket, RI | Verizon New England Inc. |
There are 529 prefixes, In the code area, the major cities are Bristol, RI;Cranston, RI;East Providence, RI;Newpo. The major city is Providence.