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Area Codes > 857 > Central Office Codes

Exchange Rate Center State Operating Company
857-201 WINTHROP MA SPRINT SPECTRUM L.P.
857-203 JAMAICA PL MA VERIZON NEW ENGLAND INC.
857-204 BOSTON MA OMNIPOINT MIAMI E LICENSE, LLC
857-205 BOSTON MA NEW CINGULAR WIRELESS PCS, LLC - MA
857-207 BOSTON MA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA
857-209 CAMBRIDGE MA BROADWING COMMUNICATIONS, LLC - MA
857-211 MA
857-212 DORCHESTER MA SPRINT SPECTRUM L.P.
857-217 DORCHESTER MA RNK, INC.
857-218 BROOKLINE MA VERIZON NEW ENGLAND INC.
857-220 DORCHESTER MA BROADVIEW NETWORKS, INC. - MA
857-221 BOSTON MA NEXTEL COMMUNICATIONS, INC.
857-222 BOSTON MA OMNIPOINT MIAMI E LICENSE, LLC
857-223 BOSTON MA CTC COMMUNICATIONS- MA
857-225 BROOKLINE MA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA
857-226 NEWTON MA DSCI CORPORATION - MA
857-227 SOMERVILLE MA MCIMETRO, ATS, INC.
857-228 WATERTOWN MA CTC COMMUNICATIONS- MA
857-229 NEWTON MA CTC COMMUNICATIONS- MA
857-231 NEWTON MA SPRINT SPECTRUM L.P.
857-232 NEWTON MA NEUTRAL TANDEM-MASSACHUSETTS, LLC - MA
857-233 BOSTON MA SPRINT SPECTRUM L.P.
857-234 BROOKLINE MA OMNIPOINT MIAMI E LICENSE, LLC
857-238 BOSTON MA VERIZON NEW ENGLAND INC.
857-241 BOSTON MA BROADWING COMMUNICATIONS, LLC - MA
857-244 BOSTON MA BANDWIDTH.COM CLEC, LLC - MA
857-245 BROOKLINE MA YMAX COMMUNICATIONS CORP. - MA
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
857-257 SO BOSTON MA SPRINT SPECTRUM L.P.
857-272 BOSTON MA NEW CINGULAR WIRELESS PCS, LLC - MA
857-277 BOSTON MA OMNIPOINT MIAMI E LICENSE, LLC
857-284 BOSTON MA OMNIPOINT MIAMI E LICENSE, LLC
857-288 BOSTON MA XO MASSACHUSETTS, INC.
857-294 BOSTON MA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA
857-307 BROOKLINE MA VERIZON NEW ENGLAND INC.
857-311 MA
857-318 BOSTON MA ALLEGIANCE TELECOM, INC. - MA
857-334 BOSTON MA OMNIPOINT MIAMI E LICENSE, LLC
857-342 HYDE PARK MA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA
857-345 HYDE PARK MA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA
857-350 BOSTON MA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA
857-362 BOSTON MA VERIZON NEW ENGLAND INC.
857-363 EVERETT MA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA
857-364 BROOKLINE MA BROADVIEW NETWORKS, INC. - MA
857-366 BOSTON MA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA
857-373 BELMONT MA BROADVIEW NETWORKS, INC. - MA
857-383 BOSTON MA NEXTEL COMMUNICATIONS, INC.
857-389 CHARLESTN MA OMNIPOINT MIAMI E LICENSE, LLC
857-399 ROXBURY MA RNK, INC.
857-401 SO BOSTON MA BROADVIEW NETWORKS, INC. - MA
857-403 QUINCY MA PAETEC COMMUNICATIONS, INC.
857-404 NEWTON MA COMCAST PHONE OF MASSACHUSETTS, INC. - MA
857-411 MA
857-413 BOSTON MA BROADWING COMMUNICATIONS, LLC - MA
857-445 BOSTON MA NEW CINGULAR WIRELESS PCS, LLC - MA
857-449 BOSTON MA BRAHMACOM, INC. - MA
857-452 CHARLESTN MA NEXTEL COMMUNICATIONS, INC.
857-453 BOSTON MA BROADWING COMMUNICATIONS, LLC - MA
857-472 BOSTON MA NEW CINGULAR WIRELESS PCS, LLC - MA
857-488 BOSTON MA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA
857-492 ROXBURY MA SPRINT SPECTRUM L.P.
857-496 SO BOSTON MA COMCAST PHONE OF MASSACHUSETTS, INC. - MA
857-498 BRIGHTON MA NEW CINGULAR WIRELESS PCS, LLC - MA
857-499 QUINCY MA NEW CINGULAR WIRELESS PCS, LLC - MA
857-511 MA
857-523 SOMERVILLE MA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA
857-524 SO BOSTON MA ALLEGIANCE TELECOM, INC. - MA
857-526 QUINCY MA SPRINT SPECTRUM L.P.
857-540 BRIGHTON MA SPRINT SPECTRUM L.P.
857-544 ROXBURY MA OMNIPOINT MIAMI E LICENSE, LLC
857-547 JAMAICA PL MA BROADVIEW NETWORKS, INC. - MA
857-550 MA
857-554 MA
857-555 BOSTON MA VERIZON NEW ENGLAND INC.
857-559 BRIGHTON MA ALLEGIANCE TELECOM, INC. - MA
857-574 EASTBOSTON MA CTC COMMUNICATIONS- MA
857-576 BROOKLINE MA RNK, INC.
857-588 CHARLESTN MA ALLEGIANCE TELECOM, INC. - MA
857-598 MILTON MA XO MASSACHUSETTS, INC.
857-611 MA
857-617 MA
857-626 BELMONT MA RNK, INC.
857-636 NEWTON MA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA
857-654 BOSTON MA OMNIPOINT MIAMI E LICENSE, LLC
857-700 MA
857-711 MA
857-719 JAMAICA PL MA SPRINT SPECTRUM L.P.
857-728 JAMAICA PL MA ALLEGIANCE TELECOM, INC. - MA
857-753 BOSTON MA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA
857-756 CAMBRIDGE MA METROPOLITAN TELECOMMUNICATIONS OF MASS DBA METTEL
857-776 CHELSEA MA RNK, INC.
857-811 MA
857-814 BOSTON MA MULTIPLE OCN LISTING
857-816 WINTHROP MA XO MASSACHUSETTS, INC.
857-829 CAMBRIDGE MA NEXTEL COMMUNICATIONS, INC.
857-857 MA
857-869 BOSTON MA OMNIPOINT MIAMI E LICENSE, LLC