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351 Area Code

Area code 351 serves Lowell, Lawrence, Haverhill, Peabody, Methuen and nearby communities in Massachusetts. It has been in service since May 2, 2001, when it was split from 978.

StateMassachusetts
Time zoneEastern
Local time now…
Prefixes in use92
Overlay with978
LowellLawrenceHaverhillPeabodyMethuenSalemLeominsterBeverlyFitchburgGloucesterDanversNewburyportAmesburyHudsonSwampscottAndoverClintonSalisburyLowellLawrenceHaverhillLeominster
Cities and towns served by area code 351

Who issues 351 numbers

Mobile 18%VoIP and cable 49%Landline 33%

Share of the 92 prefixes (the three digits after 351) assigned to each type of carrier. Classification by carrier name, approximate.

CarrierPrefixes
Onvoy (Sinch)33
T-Mobile11
Fractel11
Ton80 Communications7
Verizon Wireless4
Peerless Network3
Bandwidth3
Metropcs3

Cities and towns in area code 351

CityPopulationOther area codes
Lowell119,971978
Lawrence89,320978
Haverhill68,361978
Peabody55,953978
Methuen54,584978
Salem45,381978
Leominster44,194978
Beverly43,363978
Fitchburg42,136978
Gloucester30,627978
Danvers27,924978
Newburyport19,148978
Amesbury17,588978
Hudson15,610978
Swampscott15,209978
Andover9,261978
Clinton6,908978
Salisbury5,735978

Got a call from 351?

A 351 number was originally issued in Massachusetts, but that does not prove the caller is there. 49% of 351 prefixes belong to VoIP and cable providers, whose numbers can be bought online and used from anywhere. Caller ID can also be spoofed, so treat urgent requests for money, codes or passwords from any area code with suspicion, and call back on a number you already know.

All 92 prefixes in area code 351

Format: (351) XXX-YYYY. Carrier is the company the block was originally assigned to; numbers may since have been ported to another carrier.

Questions about area code 351

Where is area code 351?
Area code 351 is in Massachusetts. It covers Lowell, Lawrence, Haverhill, Peabody, Methuen, Salem and 12 more cities and towns.
What time zone is area code 351?
Area code 351 is in the Eastern time zone.
Is 351 a toll-free number?
No. 351 is a geographic area code in Massachusetts. Toll-free numbers in the US start with 800, 833, 844, 855, 866, 877 or 888.
Why does 351 share its area with 978?
351 and 978 form an overlay: they cover the same territory, so new numbers there can get any of these codes, and local calls need all 10 digits.

Other area codes in Massachusetts