Local Calling Guide
Area code/prefix search
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 74 75 76 77 >>
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 857-430
| 8 |
Boston |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
2024-12-28 |
|
| 857-430
| 9 |
Boston |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
2024-12-28 |
|
| 857-431
| A |
Boston |
MA |
|
700J WAVENATION, LLC |
128 |
|
2025-09-06 |
|
| 857-431
| 0 |
Boston |
MA |
|
700J WAVENATION, LLC |
128 |
|
2025-09-06 |
|
| 857-431
| 1 |
Boston |
MA |
|
490J BOOST SUBSCRIBERCO L.L.C. |
128 |
|
2026-03-05 |
|
| 857-431
| 2 |
Boston |
MA |
|
490J BOOST SUBSCRIBERCO L.L.C. |
128 |
|
2026-01-12 |
|
| 857-432
| A |
Brookline |
MA |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2026-01-19 |
|
| 857-432
| 5 |
Brookline |
MA |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2026-01-19 |
|
| 857-432
| 6 |
Brookline |
MA |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2026-01-19 |
|
| 857-432
| 7 |
Brookline |
MA |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2026-01-19 |
|
| 857-432
| 8 |
Brookline |
MA |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2026-01-19 |
|
| 857-432
| 9 |
Brookline |
MA |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2026-01-19 |
|
| 857-437
| A |
Roxbury |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
|
|
| 857-437
| 0 |
Roxbury |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2020-06-07 |
|
| 857-437
| 1 |
Roxbury |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2020-06-07 |
|
| 857-437
| 2 |
Roxbury |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
2020-07-25 |
|
| 857-437
| 3 |
Roxbury |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-01-02 |
|
| 857-437
| 4 |
Roxbury |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
2024-10-05 |
|
| 857-437
| 5 |
Roxbury |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-01-02 |
|
| 857-437
| 6 |
Roxbury |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-01-02 |
|
| 857-437
| 7 |
Roxbury |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-01-02 |
|
| 857-437
| 8 |
Roxbury |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2019-10-27 |
|
| 857-437
| 9 |
Roxbury |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2019-10-27 |
|
| 857-443
| A |
Boston |
MA |
SOVLMAAB6MD |
939H COMMIO, LLC |
128 |
|
|
|
| 857-443
| 0 |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2017-07-14 |
|
| 857-443
| 1 |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2017-07-14 |
|
| 857-443
| 2 |
Boston |
MA |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
128 |
|
2017-07-14 |
|
| 857-443
| 3 |
Boston |
MA |
SOVLMAAB6MD |
939H COMMIO, LLC |
128 |
|
2017-07-13 |
|
| 857-443
| 4 |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2017-07-14 |
|
| 857-443
| 5 |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2017-07-14 |
|
| 857-443
| 6 |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2017-07-14 |
|
| 857-443
| 7 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2024-11-13 |
|
| 857-443
| 8 |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2017-07-14 |
|
| 857-443
| 9 |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2017-07-14 |
|
| 857-444
| A |
Boston |
MA |
SOVLMAABDS2 |
268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA |
128 |
|
|
|
| 857-444
| 0 |
Boston |
MA |
SOVLMAABDS2 |
268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA |
128 |
|
2011-01-13 |
|
| 857-444
| 1 |
Boston |
MA |
SOVLMAABDS2 |
268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA |
128 |
|
2011-01-13 |
|
| 857-444
| 2 |
Boston |
MA |
SOVLMAABDS2 |
268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA |
128 |
|
2011-01-13 |
|
| 857-444
| 3 |
Boston |
MA |
SOVLMAABDS2 |
268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA |
128 |
|
2011-01-13 |
|
| 857-444
| 4 |
Boston |
MA |
SOVLMAABDS2 |
268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA |
128 |
|
2011-01-13 |
|
| 857-444
| 5 |
Boston |
MA |
SOVLMAABDS2 |
268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA |
128 |
|
2011-01-13 |
|
| 857-444
| 6 |
Boston |
MA |
SOVLMAABDS2 |
268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA |
128 |
|
2011-01-13 |
|
| 857-444
| 7 |
Boston |
MA |
SOVLMAABDS2 |
268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA |
128 |
|
2011-01-13 |
|
| 857-444
| 8 |
Boston |
MA |
SOVLMAABDS2 |
268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA |
128 |
|
2011-01-13 |
|
| 857-444
| 9 |
Boston |
MA |
SOVLMAABDS2 |
268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA |
128 |
|
2011-01-13 |
|
| 857-445
| A |
Boston |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
|
|
| 857-445
| 0 |
Boston |
MA |
CMBRMAORDSG |
4018 LEVEL 3 COMMUNICATIONS, LLC - MA |
128 |
|
2007-05-01 |
|
| 857-445
| 1 |
Boston |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
2006-05-12 |
|
| 857-445
| 2 |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2014-05-01 |
|
| 857-445
| 3 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2006-10-08 |
|
<< 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 74 75 76 77 >>
Last updated: Wed, 04 Mar 2026 03:00:52 UTC
Sponsored by: ISP Telecom
Like this site? We accept donations via PayPal.