Area Code 857-811 : Area Code 857-891 is your one-stop site for area code lookup, phone number lookup, and free phone number reviews. Following is reverse lookup detail & reviews for area code 857 8xx including 857 area code location map. Major cities such as Norton, Woburn, Cambridge, Boston, Charlestown covered within area code 857 8xx are also listed on this page. More area codes, including those outside of Massachusetts, United States of America, are on the homepage.

Reverse Lookup Detail for Area Code 857 8xx

Area code 857 covers part of Massachusettsstate, covering most of Suffolk, Middlesex counties. It was started on May 02, 2001. This region follows US/Eastern + Daylight Savings timezone. Other popular area codes that belong to Massachusetts state include 339, 351, 413, 508, 617, 774, 781, 978.

Verified changes in Area Code 857 8XX

Date ChangedChange Details
Dec 04, 2013Area code 617 subscribers are now overlayed with area code 857. Subscriber area code 857-829 was assigned on Nov 20, 2013 and is operational from Dec 04, 2013.
Dec 03, 2012Area code 617 subscribers are now overlayed with area code 857. Subscriber area code 857-816 was assigned on Oct 18, 2012 and is operational from Dec 03, 2012.
Sep 14, 2007Area code 617 subscribers are now overlayed with area code 857. Subscriber area code 857-869 was assigned on Aug 14, 2007 and is operational from Sep 14, 2007.

Area Code 857-811 - Area Code 857-891 (Covers 857 8xx xxxx phone numbers)

Area CodeCityCountyPopulationNetwork Operator
857-811128,813One Call Services-Pipeline And Utility Safety
857-814Cambridge363,816Verizon New England Inc
857-816-2BostonSuffolk722,023Cbeyond Communications LLC - MA
857-816-3CambridgeSuffolk722,023Level 3 Communications LLC - MA
857-816-0CambridgeSuffolk722,023XO Massachusetts Inc
857-816-5CharlestownSuffolk722,023Broadview Networks Inc - MA
857-816-6WorcesterSuffolk722,023Teleport Communications America LLC - MA
857-829-3BostonMiddlesex150,308Comcast Phone of Massachusetts Inc - MA
857-829-5BostonMiddlesex150,308Paetec Communications Inc - MA
857-829-9NortonMiddlesex150,308Omnipoint Miami E License LLC
857-829-0WoburnMiddlesex150,308Sprint Spectrum LP
857-857842,859Unavailable For Assignment
857-869-0NortonSuffolk722,023Omnipoint Miami E License LLC
857-888WoburnMiddlesex150,308Sprint Spectrum LP
857-891NortonSuffolk722,023Omnipoint Miami E License LLC

Recent Free Phone Number Reviews in Area Code 857 8xx

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Verified phone numbers in Area Code 857

Area Code#Area Code#Area Code#Area Code#Area Code#
857 928372857 234309857 222263857 204228857 212198
857 205186857 919181857 891176857 829167857 888167
857 492163857 389161857 225146857 719121857 939117
857 399112857 998110857 526109857 217105857 231100
857 62699857 99199857 54494857 59888857 49882

Map for area code 857 8xx  

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Current Time in 857-8 Area Code

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857 Area Code

At, you'll find current information on 857area code, including 857 area code location & map. Other phone area code may be searched using's area code locator service on the homepage. Use the phone number search function above to instant verify area code lookup & phone number lookup.

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857 Area Code Finder

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Telephone/Landline Area Codes is a resource of North American telephone area codes. Beyond area code listings, relevant information about each area code is detailed. For example, this page details area code 857-8. You can also search area codes by state, and within the NANP, find country area codes.

Free Area Codes Locator for Massachusetts

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857 Area Code Reviews provides local reviews for phone numbers and aggregates results per area code. It shows you the area code location covered by each area code; for example, the LA area code reveiws covers local business phone numbers area in Los Angeles. This page details area code 857-8. All USA states area codes may be found using

Telephone Area Codes in Massachusetts

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External links & resources for area code 857 in Massachusetts