Directory of 657 area code prefixes

Prefix Phone Numbers State
657-200 158METROPCS NETWORKS, LLC
657-201 9METROPCS NETWORKS, LLC
657-203 15LEVEL 3 COMMUNICATIONS, LLC - CA
657-204 24BANDWIDTH.COM CLEC, LLC - CA
657-205 20MCI WORLDCOM COMMUNICATIONS, INC., CA
657-206 11T-MOBILE USA, INC.
657-207 9METROPCS NETWORKS, LLC
657-208 31ONVOY, LLC - CA
657-210 37BANDWIDTH.COM CLEC, LLC - CA
657-212 13LEVEL 3 COMMUNICATIONS, LLC - CA
657-214 78BANDWIDTH.COM CLEC, LLC - CA
657-215 16LEVEL 3 COMMUNICATIONS, LLC - CA
657-216 13BANDWIDTH.COM CLEC, LLC - CA
657-222 62ONVOY, LLC - CA
657-229 7BANDWIDTH.COM CLEC, LLC - CA
657-269 6CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
657-278 10PACIFIC BELL
657-333 19BANDWIDTH.COM CLEC, LLC - CA
657-444 27BANDWIDTH.COM CLEC, LLC - CA
657-464 19BANDWIDTH.COM CLEC, LLC - CA
657-549 23BANDWIDTH.COM CLEC, LLC - CA
657-622 5PACIFIC BELL
657-666 12ONVOY, LLC - CA
657-777 17BANDWIDTH.COM CLEC, LLC - CA
657-859 4COX CALIFORNIA TELCOM, LLC - CA
657-888 7BANDWIDTH.COM CLEC, LLC - CA