Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 857 [Rate centres in NPA 857] [Dial plan for NPA 857]

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
857-210 A Boston MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
857-210 0 Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
857-210 1 Boston MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
857-210 2 Boston MA CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-210 3 Boston MA CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-210 4 Boston MA CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-210 5 Boston MA CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-210 6 Boston MA CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-210 7 Boston MA CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-210 8 Boston MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
857-210 9 Boston MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
857-212 A Dorchester MA   5562 METROPCS, INC. 128      
857-212 0 Dorchester MA NRTNMAAACM4  5562 METROPCS, INC. 128      
857-212 1 Dorchester MA NRTNMAAACM4  5562 METROPCS, INC. 128      
857-212 2 Dorchester MA NRTNMAAACM4  5562 METROPCS, INC. 128      
857-212 3 Dorchester MA NRTNMAAACM4  5562 METROPCS, INC. 128      
857-212 4 Dorchester MA NRTNMAAACM4  5562 METROPCS, INC. 128      
857-212 5 Dorchester MA NRTNMAAACM4  5562 METROPCS, INC. 128      
857-212 6 Dorchester MA NRTNMAAACM4  5562 METROPCS, INC. 128      
857-212 7 Dorchester MA NRTNMAAACM4  5562 METROPCS, INC. 128      
857-212 8 Dorchester MA NRTNMAAACM4  5562 METROPCS, INC. 128      
857-212 9 Dorchester MA   5562 METROPCS, INC. 128      
857-213 A Boston MA BSTNMACOVMD  4084 PAETEC COMMUNICATIONS, INC. - MA 128      
857-213 0 Boston MA   4084 PAETEC COMMUNICATIONS, INC. - MA 128      
857-213 1 Boston MA   4084 PAETEC COMMUNICATIONS, INC. - MA 128      
857-213 2 Boston MA   4084 PAETEC COMMUNICATIONS, INC. - MA 128      
857-213 3 Boston MA   4084 PAETEC COMMUNICATIONS, INC. - MA 128      
857-213 4 Boston MA   4084 PAETEC COMMUNICATIONS, INC. - MA 128      
857-213 5 Boston MA   4084 PAETEC COMMUNICATIONS, INC. - MA 128      
857-213 6 Boston MA   4084 PAETEC COMMUNICATIONS, INC. - MA 128      
857-213 7 Boston MA   4084 PAETEC COMMUNICATIONS, INC. - MA 128      
857-213 8 Boston MA   4084 PAETEC COMMUNICATIONS, INC. - MA 128      
857-213 9 Boston MA   4084 PAETEC COMMUNICATIONS, INC. - MA 128      
857-214 A Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-214 0 Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-214 1 Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-214 2 Boston MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-214 3 Boston MA CMBRMAWA0MD  4052 CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC 128      
857-214 4 Boston MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-214 5 Boston MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-214 6 Boston MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-214 7 Boston MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-214 8 Boston MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-214 9 Boston MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
857-215 A Brookline MA BKLIMAMADS1  9102 VERIZON NEW ENGLAND INC. 128      
857-215 0 Brookline MA BKLIMAMADS1  9102 VERIZON NEW ENGLAND INC. 128      
857-215 1 Brookline MA BKLIMAMADS1  9102 VERIZON NEW ENGLAND INC. 128      
857-215 2 Brookline MA BKLIMAMADS1  9102 VERIZON NEW ENGLAND INC. 128      
857-215 3 Brookline MA BKLIMAMADS1  9102 VERIZON NEW ENGLAND INC. 128      
857-215 4 Brookline MA BKLIMAMADS1  9102 VERIZON NEW ENGLAND INC. 128      
857-215 5 Brookline MA BKLIMAMADS1  9102 VERIZON NEW ENGLAND INC. 128      
857-215 6 Brookline MA BKLIMAMADS1  9102 VERIZON NEW ENGLAND INC. 128      
857-215 7 Brookline MA BKLIMAMADS1  9102 VERIZON NEW ENGLAND INC. 128      
857-215 8 Brookline MA BKLIMAMADS1  9102 VERIZON NEW ENGLAND INC. 128      
857-215 9 Brookline MA BKLIMAMADS1  9102 VERIZON NEW ENGLAND INC. 128      
857-216 A Newton MA CMBRMAMQDS3  316E YMAX COMMUNICATIONS CORP. - MA 128      
857-216 0 Newton MA CMBRMAMQDS3  316E YMAX COMMUNICATIONS CORP. - MA 128      
857-216 1 Newton MA   316E YMAX COMMUNICATIONS CORP. - MA 128      
857-216 2 Newton MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-216 3 Newton MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-216 4 Newton MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-216 5 Newton MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-216 6 Newton MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-216 7 Newton MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
857-216 8 Newton MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-216 9 Newton MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-217 A Dorchester MA NRTNMAAACM4  5562 METROPCS, INC. 128      
857-217 0 Dorchester MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
857-217 1 Dorchester MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-217 2 Dorchester MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
857-217 3 Dorchester MA CMBRMAWA0MD  3370 CTC COMMUNICATIONS CORP. - MA 128      
857-217 4 Dorchester MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
857-217 5 Dorchester MA NRTNMAAACM4  5562 METROPCS, INC. 128      
857-217 6 Dorchester MA NRTNMAAACM4  5562 METROPCS, INC. 128      
857-217 7 Dorchester MA NRTNMAAACM4  5562 METROPCS, INC. 128      
857-217 8 Dorchester MA NRTNMAAACM4  5562 METROPCS, INC. 128      
857-217 9 Dorchester MA   145J TERRA NOVA TELECOM INC. 128      
857-218 A Brookline MA BKLIMAMADS1  9102 VERIZON NEW ENGLAND INC. 128      
857-218 0 Brookline MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
857-218 1 Brookline MA   515J IP HORIZON LLC 128      
857-218 2 Brookline MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
857-218 3 Brookline MA BKLIMAMADS1  9102 VERIZON NEW ENGLAND INC. 128      
857-218 4 Brookline MA BKLIMAMADS1  9102 VERIZON NEW ENGLAND INC. 128      
857-218 5 Brookline MA BKLIMAMADS1  9102 VERIZON NEW ENGLAND INC. 128      
857-218 6 Brookline MA BKLIMAMADS1  9102 VERIZON NEW ENGLAND INC. 128      
857-218 7 Brookline MA BKLIMAMADS1  9102 VERIZON NEW ENGLAND INC. 128      
857-218 8 Brookline MA CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-218 9 Brookline MA CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-219 A Newton MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-219 0 Newton MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-219 1 Newton MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-219 2 Newton MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-219 3 Newton MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-219 4 Newton MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-219 5 Newton MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-219 6 Newton MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-219 7 Newton MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-219 8 Newton MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-219 9 Newton MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-220 A Dorchester MA CHTWMABMAMD  2899 BROADVIEW NETWORKS, INC. - MA 128      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 >>

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.