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 |
| 857-314
| 6 |
Milton |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2016-03-25 |
|
| 857-314
| 7 |
Milton |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2016-03-25 |
|
| 857-314
| 8 |
Milton |
MA |
|
515J IP HORIZON LLC |
128 |
|
2015-04-03 |
|
| 857-314
| 9 |
Milton |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-04-11 |
|
| 857-315
| A |
Boston |
MA |
BSTPMALL5MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
128 |
|
|
|
| 857-315
| 0 |
Boston |
MA |
CMBRMAORDSG |
4018 LEVEL 3 COMMUNICATIONS, LLC - MA |
128 |
|
2017-12-08 |
|
| 857-315
| 1 |
Boston |
MA |
CMBRMAORDSG |
4018 LEVEL 3 COMMUNICATIONS, LLC - MA |
128 |
|
2017-12-08 |
|
| 857-315
| 2 |
Boston |
MA |
CMBRMAORDSG |
4018 LEVEL 3 COMMUNICATIONS, LLC - MA |
128 |
|
2017-12-08 |
|
| 857-315
| 3 |
Boston |
MA |
CMBRMAORDSG |
4018 LEVEL 3 COMMUNICATIONS, LLC - MA |
128 |
|
2017-12-08 |
|
| 857-315
| 4 |
Boston |
MA |
BSTPMALL5MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
128 |
|
2017-12-08 |
|
| 857-315
| 5 |
Boston |
MA |
NWTNMAWAVMD |
318J COMCAST IP PHONE, LLC |
128 |
|
2017-12-09 |
|
| 857-315
| 6 |
Boston |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
2024-10-11 |
|
| 857-315
| 7 |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2017-12-11 |
|
| 857-315
| 8 |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2017-12-11 |
|
| 857-315
| 9 |
Boston |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
2024-10-11 |
|
| 857-316
| A |
Brighton |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
|
|
| 857-316
| 0 |
Brighton |
MA |
SOVLMAABDS2 |
268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA |
128 |
|
2015-05-24 |
|
| 857-316
| 1 |
Brighton |
MA |
SOVLMAAB5MD |
732H BARR TELL USA, INC. - MA |
128 |
|
2015-12-31 |
|
| 857-316
| 2 |
Brighton |
MA |
NWTNMAWAVMD |
318J COMCAST IP PHONE, LLC |
128 |
|
2015-11-18 |
|
| 857-316
| 3 |
Brighton |
MA |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
128 |
|
2015-11-10 |
|
| 857-316
| 4 |
Brighton |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2016-03-11 |
|
| 857-316
| 5 |
Brighton |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2015-11-09 |
|
| 857-316
| 6 |
Brighton |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2016-09-15 |
|
| 857-316
| 7 |
Brighton |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2015-04-30 |
|
| 857-316
| 8 |
Brighton |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2015-04-30 |
|
| 857-316
| 9 |
Brighton |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2015-04-30 |
|
| 857-317
| A |
Boston |
MA |
BSTPMALL5MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
128 |
|
|
|
| 857-317
| 0 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2013-10-11 |
|
| 857-317
| 1 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2013-10-11 |
|
| 857-317
| 2 |
Boston |
MA |
NWTNMAWAVMD |
318J COMCAST IP PHONE, LLC |
128 |
|
2014-05-29 |
|
| 857-317
| 3 |
Boston |
MA |
NWTNMAWAVMD |
318J COMCAST IP PHONE, LLC |
128 |
|
2014-05-29 |
|
| 857-317
| 4 |
Boston |
MA |
NWTNMAWAVMD |
318J COMCAST IP PHONE, LLC |
128 |
|
2014-05-29 |
|
| 857-317
| 5 |
Boston |
MA |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
128 |
|
2015-01-14 |
|
| 857-317
| 6 |
Boston |
MA |
NWTNMAWAVMD |
318J COMCAST IP PHONE, LLC |
128 |
|
2014-04-12 |
|
| 857-317
| 7 |
Boston |
MA |
BSTPMALL5MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
128 |
|
2013-05-31 |
|
| 857-317
| 8 |
Boston |
MA |
SOVLMAABDS2 |
268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA |
128 |
|
2013-10-24 |
|
| 857-317
| 9 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2014-08-23 |
|
| 857-318
| A |
Boston |
MA |
CATNMAAKPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
128 |
|
|
|
| 857-318
| 0 |
Boston |
MA |
CATNMAAKPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
128 |
|
2007-12-10 |
|
| 857-318
| 1 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2008-04-24 |
|
| 857-318
| 2 |
Boston |
MA |
NRTNMAAACM4 |
5562 METROPCS, INC. |
128 |
|
2009-07-06 |
|
| 857-318
| 3 |
Boston |
MA |
NRTNMAAACM4 |
5562 METROPCS, INC. |
128 |
|
2009-07-06 |
|
| 857-318
| 4 |
Boston |
MA |
NRTNMAAACM4 |
5562 METROPCS, INC. |
128 |
|
2009-07-06 |
|
| 857-318
| 5 |
Boston |
MA |
NRTNMAAACM4 |
5562 METROPCS, INC. |
128 |
|
2009-07-06 |
|
| 857-318
| 6 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2008-05-01 |
|
| 857-318
| 7 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2008-05-01 |
|
| 857-318
| 8 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2008-05-01 |
|
| 857-318
| 9 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2008-05-01 |
|
| 857-319
| A |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
|
|
| 857-319
| 0 |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2015-08-03 |
|
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Last updated: Sat, 02 May 2026 12:20:53 UTC
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