Area Code 857
857 area code is being used for dialing/telecommunication purposes in Massachusetts, covering 11 major cities and 3 counties, according to (NANP) North American Numbering Plan for 3-digit Numbering Plan Area (NPA) code. All the areas using NPA code 857 is part of EST (Eastern Standard Time) timezone.
857 Area Code Covers 11 Cities
Check this below table to know 11 major cities (having more than 20,000 population) in Massachusetts using numbering plan area code 857 for dialing/telecommunication purposes.
| City | ZIP Codes | Population |
|---|---|---|
| Belmont, MA | 2 | 26,997 |
| Boston, MA | 46 | 665,945 |
| Brookline, MA | 3 | 62,698 |
| Cambridge, MA | 7 | 117,962 |
| Chelsea, MA | 8 | 39,890 |
| Milton, MA | 2 | 28,450 |
| Newton, MA | 1 | 88,453 |
| Quincy, MA | 4 | 100,981 |
| Somerville, MA | 1 | 80,464 |
| Watertown city, MA | 2 | 35,181 |
3 Counties Using 857 as Area Code
857 area code is being used in 3 counties of Massachusetts for dialing/telecommunication purposes.
34 More NPA Codes Related to Area Code 857
1 or more of these 34 NPA codes are being used in the same or adjacent states of Massachusetts in the United States.
- 203 Area Code
- 212 Area Code
- 315 Area Code
- 332 Area Code
- 339 Area Code
- 347 Area Code
- 351 Area Code
- 401 Area Code
- 413 Area Code
- 475 Area Code
- 508 Area Code
- 516 Area Code
- 518 Area Code
- 585 Area Code
- 603 Area Code
- 607 Area Code
- 617 Area Code
- 631 Area Code
- 646 Area Code
- 680 Area Code
- 716 Area Code
- 718 Area Code
- 774 Area Code
- 781 Area Code
- 802 Area Code
- 838 Area Code
- 845 Area Code
- 860 Area Code
- 914 Area Code
- 917 Area Code
- 929 Area Code
- 934 Area Code
- 959 Area Code
- 978 Area Code