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 |
| 857-401
| 7 |
South Boston |
MA |
BSTPMALL5MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
128 |
|
2014-04-24 |
|
| 857-401
| 8 |
South Boston |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2014-09-13 |
|
| 857-401
| 9 |
South Boston |
MA |
|
829J PAETEC ITEL, LLC |
128 |
|
2001-08-13 |
|
| 857-402
| A |
East Boston |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
|
|
| 857-402
| 0 |
East Boston |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-04-11 |
|
| 857-402
| 1 |
East Boston |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-04-11 |
|
| 857-402
| 2 |
East Boston |
MA |
SOVLMAAB5MD |
732H BARR TELL USA, INC. - MA |
128 |
|
2015-12-31 |
|
| 857-402
| 3 |
East Boston |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-04-11 |
|
| 857-402
| 4 |
East Boston |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-04-11 |
|
| 857-402
| 5 |
East Boston |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-04-11 |
|
| 857-402
| 6 |
East Boston |
MA |
SOVLMAABDS2 |
268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA |
128 |
|
2015-05-15 |
|
| 857-402
| 7 |
East Boston |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-04-11 |
|
| 857-402
| 8 |
East Boston |
MA |
|
515J IP HORIZON LLC |
128 |
|
2015-03-26 |
|
| 857-402
| 9 |
East Boston |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-04-11 |
|
| 857-403
| A |
Quincy |
MA |
|
829J PAETEC ITEL, LLC |
128 |
|
|
|
| 857-403
| 0 |
Quincy |
MA |
|
829J PAETEC ITEL, LLC |
128 |
|
|
|
| 857-403
| 1 |
Quincy |
MA |
|
829J PAETEC ITEL, LLC |
128 |
|
2007-01-25 |
|
| 857-403
| 2 |
Quincy |
MA |
|
145J TERRA NOVA TELECOM INC. |
128 |
|
2023-06-22 |
|
| 857-403
| 3 |
Quincy |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2010-03-15 |
|
| 857-403
| 4 |
Quincy |
MA |
|
829J PAETEC ITEL, LLC |
128 |
|
2011-11-20 |
|
| 857-403
| 5 |
Quincy |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-09-03 |
|
| 857-403
| 6 |
Quincy |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2014-12-10 |
|
| 857-403
| 7 |
Quincy |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2014-12-10 |
|
| 857-403
| 8 |
Quincy |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2014-12-10 |
|
| 857-403
| 9 |
Quincy |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2014-12-10 |
|
| 857-404
| A |
Newton |
MA |
NWTNMAWAVMD |
318J COMCAST IP PHONE, LLC |
128 |
|
|
|
| 857-404
| 0 |
Newton |
MA |
NWTNMAWAVMD |
318J COMCAST IP PHONE, LLC |
128 |
|
2007-09-30 |
|
| 857-404
| 1 |
Newton |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2012-06-19 |
|
| 857-404
| 2 |
Newton |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2012-06-19 |
|
| 857-404
| 3 |
Newton |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2012-07-22 |
|
| 857-404
| 4 |
Newton |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2012-05-31 |
|
| 857-404
| 5 |
Newton |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2012-07-22 |
|
| 857-404
| 6 |
Newton |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2012-08-01 |
|
| 857-404
| 7 |
Newton |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2012-08-15 |
|
| 857-404
| 8 |
Newton |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2012-09-01 |
|
| 857-404
| 9 |
Newton |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2012-09-15 |
|
| 857-405
| A |
Brookline |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
|
|
| 857-405
| 0 |
Brookline |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2023-08-17 |
|
| 857-405
| 1 |
Brookline |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2023-02-10 |
|
| 857-405
| 2 |
Brookline |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2023-02-10 |
|
| 857-405
| 3 |
Brookline |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2023-02-10 |
|
| 857-405
| 4 |
Brookline |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2023-07-08 |
|
| 857-405
| 5 |
Brookline |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2023-07-08 |
|
| 857-405
| 6 |
Brookline |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2023-08-17 |
|
| 857-405
| 7 |
Brookline |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2023-08-17 |
|
| 857-405
| 8 |
Brookline |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2023-01-09 |
|
| 857-405
| 9 |
Brookline |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2023-01-09 |
|
| 857-406
| A |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
|
|
| 857-406
| 0 |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2016-01-15 |
|
| 857-406
| 1 |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2016-01-15 |
|
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Last updated: Wed, 04 Mar 2026 03:00:52 UTC
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