Massachusetts 市外局番: 857

Note：857 市外局番は Massachusetts, アメリカ合衆国. 国際番号は 001857 or 001-857、0010857、+1-857、+1+857、+1857、00-1-857、00 1 857.

More About Area Code 857

Area Code 857 was first put in service May 2, 2001. Currently, the largest city it serves is Boston, MA, and it overlaps coverage areas with area code 617.

Active Phone Number Prefixes

Prefix	Usage	Primary City	Carrier
(857) 200-	Wireless	Boston	Cellco Partnership DBA Verizon Wireless
(857) 201-	Wireless	Winthrop	Sprint Spectrum L.p.
(857) 202-	Wireless	Boston	Cellco Partnership DBA Verizon Wireless
(857) 203-	Landline	Jamaica Plain	Verizon New England Inc.
(857) 204-	Landline	Boston	Omnipoint Miami E License
(857) 205-	Wireless	Boston	New Cingular Wireless PCS - DC
(857) 206-	Wireless	Boston	Cellco Partnership DBA Verizon Wireless
(857) 207-	Wireless	Boston	Cellco Partnership DBA Verizon Wireless
(857) 208-	Wireless	Boston	Cellco Partnership DBA Verizon Wireless
(857) 209-	Landline	Cambridge	Broadwing Communications
(857) 210-	Wireless	Boston	Sprint Spectrum L.p.
(857) 212-	Wireless	Boston	Sprint Spectrum L.p.
(857) 213-	Landline	Boston	Paetec Communications
(857) 214-	Wireless	Boston	Cellco Partnership DBA Verizon Wireless
(857) 215-	Landline	Brookline	Verizon New England Inc.
(857) 216-	Landline	Cambridge	Ymax Communications Corp.
(857) 217-	Landline	Dorchester	Sprint Spectrum L.p.
(857) 218-	Landline	Brookline	Verizon New England Inc.
(857) 219-	Landline	Boston	Neutral Tandem-massachusetts
(857) 220-	Landline	Dorchester	Broadview Networks
(857) 221-	Wireless	Boston	Sprint Spectrum L.p.
(857) 222-	Wireless	Boston	Omnipoint Miami E License
(857) 223-	Landline	Boston	Ctc Communications Corp.
(857) 224-	Landline	Boston	Verizon New England Inc.
(857) 225-	Wireless	Brookline	Cellco Partnership DBA Verizon Wireless
(857) 226-	Landline	Newton	Dsci Corporation
(857) 227-	Landline	Somerville	Mcimetro Access Transmission Services LLC
(857) 228-	Landline	Watertown	Ctc Communications Corp.
(857) 229-	Landline	Newton	Ctc Communications Corp.
(857) 230-	Wireless	Roxbury	Omnipoint Miami E License
(857) 231-	Wireless	Newton	Sprint Spectrum L.p.
(857) 232-	Landline	Newton	Neutral Tandem-massachusetts
(857) 233-	Landline	Boston	Sprint Spectrum L.p.
(857) 234-	Wireless	Brookline	Omnipoint Miami E License
(857) 235-	Landline	Cambridge	Verizon New England Inc.
(857) 236-	Wireless	Boston	Metro PCS
(857) 237-	Wireless	Boston	Metro PCS
(857) 238-	Landline	Boston	Verizon New England Inc.
(857) 239-	Landline	Boston	Cbeyond Communications
(857) 240-	Landline	Cambridge	Peerless Network Of Massachusetts
(857) 241-	Landline	Boston	Broadwing Communications
(857) 242-	Wireless	Cambridge	Dsci Corporation
(857) 243-	Landline	Boston	Broadvox-clec
(857) 244-	Landline	Boston	Bandwidth.com Clec
(857) 245-	Landline	Brookline	Ymax Communications Corp.
(857) 246-	Wireless	Boston	Metro PCS
(857) 247-	Wireless	Boston	Metro PCS
(857) 248-	Wireless	Boston	Cellco Partnership DBA Verizon Wireless
(857) 249-	Wireless	Boston	Metro PCS
(857) 250-	Wireless	Boston	Omnipoint Miami E License
(857) 251-	Wireless	Boston	Metro PCS
(857) 252-	Landline	Quincy	Broadview Networks
(857) 253-	Landline	Cambridge	Broadview Networks
(857) 254-	Landline	Boston	Broadview Networks
(857) 255-	Landline	Newton	Broadview Networks
(857) 256-	Wireless	Cambridge	Peerless Network Of Massachusetts
(857) 257-	Wireless	S Boston	Sprint Spectrum L.p.
(857) 258-	Wireless	Boston	Metro PCS
(857) 259-	Wireless	Cambridge	New Cingular Wireless PCS - DC
(857) 260-	Wireless	Boston	Cellco Partnership DBA Verizon Wireless
(857) 261-	Wireless	Boston	Metro PCS
(857) 263-	Wireless	Boston	Cellco Partnership DBA Verizon Wireless
(857) 264-	Wireless	Boston	Omnipoint Miami E License
(857) 265-	Wireless	Boston	New Cingular Wireless PCS - DC
(857) 266-	Wireless	Boston	Metro PCS
(857) 267-	Landline	Boston	Comcast Phone Of Massachusetts
(857) 268-	Wireless	Boston	Cellco Partnership DBA Verizon Wireless
(857) 269-	Landline	Roxbury	Peerless Network Of Massachusetts
(857) 271-	Wireless	Dorchester	Sprint Spectrum L.p.
(857) 272-	Wireless	Boston	New Cingular Wireless PCS - DC
(857) 273-	Landline	Jamaica Plain	Comcast Phone Of Massachusetts
(857) 277-	Landline	Boston	Omnipoint Miami E License
(857) 284-	Wireless	Boston	Omnipoint Miami E License
(857) 285-	Landline	Cambridge	Paetec Communications
(857) 288-	Wireless	Boston	Xo Massachusetts
(857) 293-	Landline	East Boston	Broadview Networks
(857) 294-	Wireless	Boston	Cellco Partnership DBA Verizon Wireless
(857) 300-	Wireless	Boston	Cellco Partnership DBA Verizon Wireless
(857) 301-	Wireless	Boston	Cellco Partnership DBA Verizon Wireless
(857) 303-	Wireless	Boston	Cellco Partnership DBA Verizon Wireless
(857) 304-	Landline	Watertown	Teleport Communications America
(857) 305-	Landline	Boston	Level 3 Enhanced Services
(857) 307-	Landline	Brookline	Verizon New England Inc.
(857) 312-	Wireless	Boston	Metro PCS
(857) 313-	Wireless	Boston	Omnipoint Miami E License
(857) 317-	Landline	Boston	Centurylink Communications LLC
(857) 318-	Landline	Boston	Allegiance Telecom
(857) 321-	Wireless	Boston	Cellco Partnership DBA Verizon Wireless
(857) 323-	Landline	Chelsea	Verizon New England Inc.
(857) 333-	Wireless	Boston	Omnipoint Miami E License
(857) 334-	Wireless	Boston	Omnipoint Miami E License
(857) 342-	Wireless	Hyde Park	Cellco Partnership DBA Verizon Wireless
(857) 345-	Wireless	Hyde Park	Cellco Partnership DBA Verizon Wireless
(857) 350-	Wireless	Boston	Cellco Partnership DBA Verizon Wireless
(857) 362-	Landline	Boston	Verizon New England Inc.
(857) 363-	Wireless	Everett	Cellco Partnership DBA Verizon Wireless
(857) 364-	Landline	Brookline	Broadview Networks
(857) 366-	Wireless	Boston	Cellco Partnership DBA Verizon Wireless
(857) 368-	Landline	Boston	Paetec Communications
(857) 373-	Landline	Needham	Broadview Networks
(857) 377-	Landline	Boston	Paetec Communications
(857) 383-	Wireless	Boston	Teleport Communications America
(857) 389-	Wireless	Charlestown	Omnipoint Miami E License
(857) 399-	Landline	Roxbury	Bandwidth.com Clec
(857) 400-	Landline	Boston	Bandwidth.com Clec
(857) 401-	Landline	S Boston	Broadview Networks
(857) 403-	Landline	Quincy	Paetec Communications
(857) 404-	Landline	Newton	Comcast Phone Of Massachusetts
(857) 413-	Landline	Boston	Broadwing Communications
(857) 415-	Landline	Boston	Vonage Network Inc.
(857) 417-	Wireless	Boston	Metro PCS
(857) 444-	Landline	Boston	Peerless Network Of Massachusetts
(857) 445-	Wireless	Boston	New Cingular Wireless PCS - DC
(857) 449-	Landline	Boston	Comcast Phone Of Massachusetts
(857) 452-	Wireless	Charlestown	Sprint Spectrum L.p.
(857) 453-	Landline	Boston	Broadwing Communications
(857) 472-	Wireless	Boston	New Cingular Wireless PCS - DC
(857) 488-	Wireless	Boston	Cellco Partnership DBA Verizon Wireless
(857) 492-	Wireless	Roxbury	Sprint Spectrum L.p.
(857) 496-	Landline	S Boston	Comcast Phone Of Massachusetts
(857) 498-	Wireless	Brighton	New Cingular Wireless PCS - DC
(857) 499-	Wireless	Quincy	New Cingular Wireless PCS - DC
(857) 500-	Landline	Bedford	Cellco Partnership DBA Verizon Wireless
(857) 523-	Wireless	Somerville	Cellco Partnership DBA Verizon Wireless
(857) 524-	Landline	S Boston	Allegiance Telecom
(857) 526-	Wireless	Quincy	Sprint Spectrum L.p.
(857) 540-	Wireless	Brighton	Sprint Spectrum L.p.
(857) 544-	Wireless	Roxbury	Omnipoint Miami E License
(857) 547-	Landline	Jamaica Plain	Broadview Networks
(857) 559-	Landline	Boston	Allegiance Telecom
(857) 574-	Landline	East Boston	Ctc Communications Corp.
(857) 576-	Landline	Brookline	Local Access LLC
(857) 588-	Landline	Charlestown	Allegiance Telecom
(857) 598-	Landline	Malden	Xo Massachusetts
(857) 600-	Landline	Cambridge	Bandwidth.com Clec
(857) 615-	Wireless	Boston	Metro PCS
(857) 626-	Landline	Belmont	Mci Worldcom Communications
(857) 636-	Wireless	Newton	Cellco Partnership DBA Verizon Wireless
(857) 654-	Wireless	Boston	Omnipoint Miami E License
(857) 701-	Wireless	Roxbury	Omnipoint Miami E License
(857) 702-	Wireless	Boston	365 Wireless
(857) 719-	Wireless	Jamaica Plain	Sprint Spectrum L.p.
(857) 728-	Landline	Jamaica Plain	Allegiance Telecom
(857) 753-	Wireless	Boston	Cellco Partnership DBA Verizon Wireless
(857) 756-	Landline	Cambridge	Metropolitan Telecommunications Of Mass DBA Mettel
(857) 776-	Landline	Chelsea	Level 3 Communications
(857) 777-	Landline	Cambridge	Peerless Network Of Massachusetts
(857) 814-	Unknown		Multiple Ocn Listing
(857) 816-	Landline	Cambridge	Xo Massachusetts
(857) 829-	Wireless	Cambridge	Sprint Spectrum L.p.
(857) 869-	Wireless	Boston	Omnipoint Miami E License
(857) 888-	Wireless	Everett	Sprint Spectrum L.p.
(857) 891-	Wireless	Boston	Omnipoint Miami E License
(857) 919-	Wireless	Brighton	Omnipoint Miami E License
(857) 928-	Wireless	Cambridge	Omnipoint Miami E License
(857) 930-	Unknown		Rclec
(857) 939-	Wireless	Quincy	Cellco Partnership DBA Verizon Wireless
(857) 991-	Landline	Boston	Comcast Phone Of Massachusetts
(857) 995-	Landline	Somerville	Broadwing Communications
(857) 996-	Landline	Boston	Verizon New England Inc.
(857) 997-	Landline	Somerville	Local Access LLC
(857) 998-	Wireless	Cambridge	Cellco Partnership DBA Verizon Wireless
(857) 999-	Landline	Cambridge	Peerless Network Of Massachusetts