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(857)
Enter 7-digit phone number for area code 857 or the complete 10-digit phone number

Phone Prefixes for Area Code 857

Page 2 of 6 — Previous Next
Area code location Company / Service Provider
857-251 BOSTON, MA METRO PCS, INC.
857-252 QUINCY, MA BROADVIEW NETWORKS, INC. - MA
857-253 CAMBRIDGE, MA BROADVIEW NETWORKS, INC. - MA
857-254 BOSTON, MA BROADVIEW NETWORKS, INC. - MA
857-255 NEWTON, MA BROADVIEW NETWORKS, INC. - MA
857-256 East Boston, MA PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA
857-257 SO BOSTON, MA SPRINT SPECTRUM L.P.
857-258 BOSTON, MA METRO PCS, INC.
857-259 CAMBRIDGE, MA NEW CINGULAR WIRELESS PCS, LLC - DC
857-260 BOSTON, MA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA
857-261 BOSTON, MA METRO PCS, INC.
857-262 BOSTON, MA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA
857-263 BOSTON, MA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA
857-264 BOSTON, MA OMNIPOINT MIAMI E LICENSE, LLC
857-265 BOSTON, MA NEW CINGULAR WIRELESS PCS, LLC - DC
857-266 BOSTON, MA METRO PCS, INC.
857-267 MILTON, MA COMCAST PHONE OF MASSACHUSETTS, INC. - MA
857-268 BOSTON, MA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA
857-269 ROXBURY, MA PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA
857-270 CAMBRIDGE, MA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA
857-271 DORCHESTER, MA SPRINT SPECTRUM L.P.
857-272 BOSTON, MA NEW CINGULAR WIRELESS PCS, LLC - DC
857-273 Jamaica Plain, MA COMCAST PHONE OF MASSACHUSETTS, INC. - MA
857-274 BOSTON, MA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA
857-275 BOSTON, MA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA
857-276 BOSTON, MA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA
857-277 BOSTON, MA OMNIPOINT MIAMI E LICENSE, LLC
857-278 BOSTON, MA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA
857-279 NEWTON, MA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA
857-280 BRIGHTON, MA NEUTRAL TANDEM-MASSACHUSETTS, LLC - MA
857-282 BOSTON, MA VERIZON NEW ENGLAND INC.
857-283 BOSTON, MA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA
857-284 BOSTON, MA OMNIPOINT MIAMI E LICENSE, LLC
857-285 CAMBRIDGE, MA PAETEC COMMUNICATIONS, INC.- MA
857-286 BOSTON, MA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA
857-287 BOSTON, MA METRO PCS, INC.
857-288 BOSTON, MA XO MASSACHUSETTS, INC.
857-289 BOSTON, MA NEUTRAL TANDEM-MASSACHUSETTS, LLC - MA
857-290 NEWTON, MA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA
857-293 East Boston, MA BROADVIEW NETWORKS, INC. - MA
857-294 BOSTON, MA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA
857-300 BOSTON, MA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA
857-301 BOSTON, MA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA
857-302 BOSTON, MA AIRUS, INC - MA
857-303 BOSTON, MA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA
857-304 WATERTOWN, MA TC SYSTEMS, INC.
857-305 BOSTON, MA LEVEL 3 COMMUNICATIONS, LLC - MA
857-307 BROOKLINE, MA VERIZON NEW ENGLAND INC.
857-308 ROXBURY, MA OMNIPOINT MIAMI E LICENSE, LLC
857-309 DORCHESTER, MA BROADVOX-CLEC, LLC - MA
New numbers being added to 857 area code
Effective: 06/30/2017
857-283 in BOSTON, MA
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA
Effective: 06/30/2017
857-286 in BOSTON, MA
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA
Effective: 07/01/2017
857-289 in BOSTON, MA
NEUTRAL TANDEM-MASSACHUSETTS, LLC - MA
Effective: 07/14/2017
857-290 in NEWTON, MA
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA
Effective: 07/13/2017
857-443 in BOSTON, MA
COMMIO, LLC
857 Area Code Information
Type of code: General Purpose Code
location: MA - US
Time zone: E
Assigned for use: Yes
Code in service: Yes
Service date: May 02, 2001
In jeopardy: No
Relief in progress: No
NPA Relief status:
Code assignable: Yes
Geographic or
non-geographic:
G
Reserved for future use: No
Planning letter(s): 234
Overlay code: Yes
Overlay complex: 617/857
Dialing plan Standard Permissive
Home local calls: 10D 1+10D
Foreign local calls: 10D NA
Home toll calls: 1+10D 1+10D
Foreign toll calls: 1+10D -
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