area codes starting 4
| Agawam, Massachusetts | 413 | More |
| Amherst, Massachusetts | 413 | More |
| Amherst, Massachusetts | 413 | More |
| Amherst, Massachusetts | 413 | More |
| Belchertown, Massachusetts | 413 | More |
| Blandford, Massachusetts | 413 | More |
| Bondsville, Massachusetts | 413 | More |
| Brimfield, Massachusetts | 413 | More |
| Chester, Massachusetts | 413 | More |
| Chesterfield, Massachusetts | 413 | More |
| Chicopee, Massachusetts | 413 | More |
| Chicopee, Massachusetts | 413 | More |
| Chicopee, Massachusetts | 413 | More |
| Chicopee, Massachusetts | 413 | More |
| Chicopee, Massachusetts | 413 | More |
| Cummington, Massachusetts | 413 | More |
| Easthampton, Massachusetts | 413 | More |
| East Longmeadow, Massachusetts | 413 | More |
| East Otis, Massachusetts | 413 | More |
| Feeding Hills, Massachusetts | 413 | More |
| Gilbertville, Massachusetts | 413 | More |
| Goshen, Massachusetts | 413 | More |
| Granby, Massachusetts | 413 | More |
| Granville, Massachusetts | 413 | More |
| Hadley, Massachusetts | 413 | More |
| Hampden, Massachusetts | 413 | More |
| Hardwick, Massachusetts | 413 | More |
| Hatfield, Massachusetts | 413 | More |
| Haydenville, Massachusetts | 413 | More |
| Holyoke, Massachusetts | 413 | More |
| Holyoke, Massachusetts | 413 | More |
| Huntington, Massachusetts | 413 | More |
| Leeds, Massachusetts | 413 | More |
| Leverett, Massachusetts | 413 | More |
| Ludlow, Massachusetts | 413 | More |
| Monson, Massachusetts | 413 | More |
| North Amherst, Massachusetts | 413 | More |
| Northampton, Massachusetts | 413 | More |
| Northampton, Massachusetts | 413 | More |
| Florence, Massachusetts | 413 | More |
| Northampton, Massachusetts | 413 | More |
| North Hatfield, Massachusetts | 413 | More |
| Palmer, Massachusetts | 413 | More |
| Plainfield, Massachusetts | 413 | More |
| Russell, Massachusetts | 413 | More |
| Shutesbury, Massachusetts | 413 | More |
| Southampton, Massachusetts | 413 | More |
| South Hadley, Massachusetts | 413 | More |
| Southwick, Massachusetts | 413 | More |
| Thorndike, Massachusetts | 413 | More |
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