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 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
857-675 4 Roxbury MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-07-10   
857-675 5 Roxbury MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-06-04   
857-675 6 Roxbury MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-07-10   
857-675 7 Roxbury MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-08-14   
857-675 8 Roxbury MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-08-14   
857-675 9 Roxbury MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-08-14   
857-678 A Belmont MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-678 0 Belmont MA SOVLMAAB3MD  197D VONAGE AMERICA LLC 128   2021-10-22   
857-678 1 Belmont MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-07-10   
857-678 2 Belmont MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-07-10   
857-678 3 Belmont MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-07-10   
857-678 4 Belmont MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-06-13   
857-678 5 Belmont MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-06-13   
857-678 6 Belmont MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-06-13   
857-678 7 Belmont MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-06-04   
857-678 8 Belmont MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-06-13   
857-678 9 Belmont MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-07-10   
857-688 A Dorchester MA SOVLMAABAMD  965H FRACTEL, LLC 128      
857-688 0 Dorchester MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2022-12-19   
857-688 1 Dorchester MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2022-03-20   
857-688 2 Dorchester MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2022-03-20   
857-688 3 Dorchester MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2022-12-19   
857-688 4 Dorchester MA SOVLMAABCMD  516J TON80 COMMUNICATIONS, LLC 128   2022-03-17   
857-688 5 Dorchester MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2022-12-19   
857-688 6 Dorchester MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2022-02-07   
857-688 7 Dorchester MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2022-02-07   
857-688 8 Dorchester MA SOVLMAABAMD  965H FRACTEL, LLC 128   2021-12-26   
857-688 9 Dorchester MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2022-12-19   
857-693 A Roxbury MA SOVLMAABCMD  516J TON80 COMMUNICATIONS, LLC 128      
857-693 0 Roxbury MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2022-06-13   
857-693 1 Roxbury MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2022-06-13   
857-693 2 Roxbury MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2023-09-15   
857-693 3 Roxbury MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2023-09-15   
857-693 4 Roxbury MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2023-09-15   
857-693 5 Roxbury MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2023-09-15   
857-693 6 Roxbury MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2022-04-20   
857-693 7 Roxbury MA SOVLMAABCMD  516J TON80 COMMUNICATIONS, LLC 128   2022-04-19   
857-693 8 Roxbury MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2022-06-13   
857-693 9 Roxbury MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2022-08-25   
857-701 A Roxbury MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
857-701 0 Roxbury MA CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2014-09-05   
857-701 1 Roxbury MA WSBOMAGO0MD  4084 PAETEC COMMUNICATIONS, INC. - MA 128   2014-03-18   
857-701 2 Roxbury MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2014-08-23   
857-701 3 Roxbury MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2014-08-23   
857-701 5 Roxbury MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2014-03-16   
857-701 6 Roxbury MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2014-03-16   
857-701 7 Roxbury MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2014-03-16   
857-701 8 Roxbury MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2014-03-16   
857-701 9 Roxbury MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2014-03-16   
857-702 A Boston MA CMBRMABE5MD  551G NUSO, LLC 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 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 >>

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.