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 |
| 857-277
| 1 |
Boston |
MA |
NWTNMAWAVMD |
318J COMCAST IP PHONE, LLC |
128 |
|
2006-10-15 |
|
| 857-277
| 2 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2006-03-18 |
|
| 857-277
| 3 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2006-03-18 |
|
| 857-277
| 4 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2006-03-18 |
|
| 857-277
| 5 |
Boston |
MA |
CMBRMAORDSG |
4018 LEVEL 3 COMMUNICATIONS, LLC - MA |
128 |
|
2006-08-30 |
|
| 857-277
| 6 |
Boston |
MA |
|
829J PAETEC ITEL, LLC |
128 |
|
2006-07-12 |
|
| 857-277
| 7 |
Boston |
MA |
CMBRMAORDSG |
4018 LEVEL 3 COMMUNICATIONS, LLC - MA |
128 |
|
2006-08-30 |
|
| 857-277
| 8 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2006-10-08 |
|
| 857-277
| 9 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2006-10-08 |
|
| 857-278
| A |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
|
|
| 857-278
| 0 |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2015-10-15 |
|
| 857-278
| 1 |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2015-10-15 |
|
| 857-278
| 2 |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2015-10-15 |
|
| 857-278
| 3 |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2015-10-15 |
|
| 857-278
| 4 |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2015-10-15 |
|
| 857-278
| 5 |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2015-10-15 |
|
| 857-278
| 6 |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2015-10-15 |
|
| 857-278
| 7 |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2015-10-15 |
|
| 857-278
| 8 |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2015-10-15 |
|
| 857-278
| 9 |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2015-10-15 |
|
| 857-279
| A |
Newton |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
|
|
| 857-279
| 0 |
Newton |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2016-04-01 |
|
| 857-279
| 1 |
Newton |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2016-11-30 |
|
| 857-279
| 2 |
Newton |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2016-12-14 |
|
| 857-279
| 3 |
Newton |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2016-12-14 |
|
| 857-279
| 4 |
Newton |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2016-11-30 |
|
| 857-279
| 5 |
Newton |
MA |
|
321J HD CARRIER LLC |
128 |
|
2016-09-03 |
|
| 857-279
| 6 |
Newton |
MA |
CMBRMABETMD |
321J HD CARRIER LLC |
128 |
|
2016-09-03 |
|
| 857-279
| 7 |
Newton |
MA |
BSTPMALLOMD |
073H TELNYX LLC |
128 |
|
2024-06-18 |
|
| 857-279
| 8 |
Newton |
MA |
SOVLMAAB6MD |
939H COMMIO, LLC |
128 |
|
2024-03-16 |
|
| 857-279
| 9 |
Newton |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-09-03 |
|
| 857-280
| A |
Brighton |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
|
|
| 857-280
| 0 |
Brighton |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2016-04-28 |
|
| 857-280
| 1 |
Brighton |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2016-04-28 |
|
| 857-280
| 2 |
Brighton |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-04-29 |
|
| 857-280
| 3 |
Brighton |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-04-29 |
|
| 857-280
| 4 |
Brighton |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-04-29 |
|
| 857-280
| 5 |
Brighton |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-04-29 |
|
| 857-280
| 6 |
Brighton |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-04-29 |
|
| 857-280
| 7 |
Brighton |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-04-29 |
|
| 857-280
| 8 |
Brighton |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-04-29 |
|
| 857-280
| 9 |
Brighton |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-04-29 |
|
| 857-281
| A |
Quincy |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
|
|
| 857-281
| 0 |
Quincy |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2020-10-03 |
|
| 857-281
| 1 |
Quincy |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2020-10-03 |
|
| 857-281
| 2 |
Quincy |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2020-10-03 |
|
| 857-281
| 3 |
Quincy |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2020-10-03 |
|
| 857-281
| 4 |
Quincy |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2020-10-03 |
|
| 857-281
| 5 |
Quincy |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2020-10-03 |
|
| 857-281
| 6 |
Quincy |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2020-10-03 |
|
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Last updated: Tue, 16 Jun 2026 00:09:45 UTC
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