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 |
| 857-445
| 4 |
Boston |
MA |
CMBRMAORDSG |
4018 LEVEL 3 COMMUNICATIONS, LLC - MA |
128 |
|
2007-05-01 |
|
| 857-445
| 5 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2007-07-23 |
|
| 857-445
| 6 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2007-06-25 |
|
| 857-445
| 7 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2007-06-25 |
|
| 857-445
| 8 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2007-06-25 |
|
| 857-445
| 9 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2007-06-25 |
|
| 857-449
| A |
Boston |
MA |
NWTNMAWAVMD |
318J COMCAST IP PHONE, LLC |
128 |
|
|
|
| 857-452
| A |
Charlestown |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
|
|
| 857-452
| 0 |
Charlestown |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2015-04-12 |
|
| 857-452
| 1 |
Charlestown |
MA |
BSTNMABLOMD |
990E BANDWIDTH.COM CLEC, LLC - MA |
128 |
|
2014-08-25 |
|
| 857-452
| 2 |
Charlestown |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2014-06-16 |
|
| 857-452
| 3 |
Charlestown |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2013-11-10 |
|
| 857-452
| 4 |
Charlestown |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2013-11-10 |
|
| 857-452
| 5 |
Charlestown |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2013-11-10 |
|
| 857-452
| 6 |
Charlestown |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
|
|
| 857-452
| 7 |
Charlestown |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2015-04-12 |
|
| 857-452
| 8 |
Charlestown |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2013-09-16 |
|
| 857-452
| 9 |
Charlestown |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2015-04-12 |
|
| 857-453
| A |
Boston |
MA |
CMBRMAORDSG |
4018 LEVEL 3 COMMUNICATIONS, LLC - MA |
128 |
|
|
|
| 857-453
| 0 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2005-08-01 |
|
| 857-453
| 1 |
Boston |
MA |
CMBRMAORDSG |
4018 LEVEL 3 COMMUNICATIONS, LLC - MA |
128 |
|
2005-07-10 |
|
| 857-453
| 2 |
Boston |
MA |
|
829J PAETEC ITEL, LLC |
128 |
|
2008-01-08 |
|
| 857-453
| 3 |
Boston |
MA |
|
829J PAETEC ITEL, LLC |
128 |
|
2008-03-14 |
|
| 857-453
| 4 |
Boston |
MA |
CMBRMAORDSG |
4018 LEVEL 3 COMMUNICATIONS, LLC - MA |
128 |
|
2008-02-15 |
|
| 857-453
| 5 |
Boston |
MA |
|
829J PAETEC ITEL, LLC |
128 |
|
2008-04-16 |
|
| 857-453
| 6 |
Boston |
MA |
CMBRMAORDSG |
4018 LEVEL 3 COMMUNICATIONS, LLC - MA |
128 |
|
2005-07-10 |
|
| 857-453
| 7 |
Boston |
MA |
CMBRMAORDSG |
4018 LEVEL 3 COMMUNICATIONS, LLC - MA |
128 |
|
2005-07-10 |
|
| 857-453
| 8 |
Boston |
MA |
CMBRMAORDSG |
4018 LEVEL 3 COMMUNICATIONS, LLC - MA |
128 |
|
2005-07-10 |
|
| 857-453
| 9 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2005-08-01 |
|
| 857-465
| A |
Boston |
MA |
SOVLMAABAMD |
965H FRACTEL, LLC |
128 |
|
|
|
| 857-465
| 0 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2022-10-03 |
|
| 857-465
| 1 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2022-10-03 |
|
| 857-465
| 2 |
Boston |
MA |
BSTPMALLVMD |
181J ADVANCED TELECOM SOLUTIONS, LLC |
128 |
|
2021-08-20 |
|
| 857-465
| 3 |
Boston |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2020-10-03 |
|
| 857-465
| 4 |
Boston |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2020-10-03 |
|
| 857-465
| 5 |
Boston |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2020-10-03 |
|
| 857-465
| 6 |
Boston |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2020-10-03 |
|
| 857-465
| 7 |
Boston |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-06-12 |
|
| 857-465
| 8 |
Boston |
MA |
SOVLMAABAMD |
965H FRACTEL, LLC |
128 |
|
2020-07-06 |
|
| 857-465
| 9 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2022-10-03 |
|
| 857-466
| A |
Hyde Park |
MA |
SOVLMAABCMD |
516J TON80 COMMUNICATIONS, LLC |
128 |
|
|
|
| 857-466
| 0 |
Hyde Park |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2024-03-09 |
|
| 857-466
| 1 |
Hyde Park |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2022-11-20 |
|
| 857-466
| 2 |
Hyde Park |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2022-11-20 |
|
| 857-466
| 3 |
Hyde Park |
MA |
SOVLMAABCMD |
516J TON80 COMMUNICATIONS, LLC |
128 |
|
2022-04-13 |
|
| 857-466
| 4 |
Hyde Park |
MA |
CMBRMABENMD |
624H ONVOY SPECTRUM, LLC |
128 |
|
2024-12-06 |
|
| 857-466
| 5 |
Hyde Park |
MA |
CMBRMABENMD |
624H ONVOY SPECTRUM, LLC |
128 |
|
2024-12-06 |
|
| 857-466
| 8 |
Hyde Park |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2023-08-17 |
|
| 857-466
| 9 |
Hyde Park |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2023-08-17 |
|
| 857-467
| A |
Somerville |
MA |
SOVLMAABCMD |
516J TON80 COMMUNICATIONS, LLC |
128 |
|
|
|
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Last updated: Wed, 04 Mar 2026 03:00:52 UTC
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