Local Calling Guide
Area code/prefix search
Boston, MA
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| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 857-310
| 8 |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2014-12-13 |
|
| 857-310
| 9 |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2014-12-13 |
|
| 857-312
| A |
NRTNMAAACM4 |
5562 METROPCS, INC. |
128 |
|
|
|
| 857-312
| 0 |
NRTNMAAACM4 |
5562 METROPCS, INC. |
128 |
|
2008-12-01 |
|
| 857-312
| 1 |
NRTNMAAACM4 |
5562 METROPCS, INC. |
128 |
|
2008-12-01 |
|
| 857-312
| 2 |
NRTNMAAACM4 |
5562 METROPCS, INC. |
128 |
|
2008-12-01 |
|
| 857-312
| 3 |
NRTNMAAACM4 |
5562 METROPCS, INC. |
128 |
|
2008-12-01 |
|
| 857-312
| 4 |
NRTNMAAACM4 |
5562 METROPCS, INC. |
128 |
|
2008-12-01 |
|
| 857-312
| 5 |
NRTNMAAACM4 |
5562 METROPCS, INC. |
128 |
|
2008-12-01 |
|
| 857-312
| 6 |
NRTNMAAACM4 |
5562 METROPCS, INC. |
128 |
|
2008-12-01 |
|
| 857-312
| 7 |
NRTNMAAACM4 |
5562 METROPCS, INC. |
128 |
|
2008-12-01 |
|
| 857-312
| 8 |
NRTNMAAACM4 |
5562 METROPCS, INC. |
128 |
|
2008-12-01 |
|
| 857-312
| 9 |
NRTNMAAACM4 |
5562 METROPCS, INC. |
128 |
|
2008-12-01 |
|
| 857-313
| A |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
|
|
| 857-313
| 0 |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2013-04-16 |
|
| 857-313
| 1 |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2013-04-16 |
|
| 857-313
| 2 |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2013-04-16 |
|
| 857-313
| 3 |
CMBRMAORDSG |
4018 LEVEL 3 COMMUNICATIONS, LLC - MA |
128 |
|
2013-01-27 |
|
| 857-313
| 4 |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2013-04-16 |
|
| 857-313
| 5 |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2013-04-16 |
|
| 857-313
| 6 |
|
829J PAETEC ITEL, LLC |
128 |
|
2013-02-06 |
|
| 857-313
| 7 |
CATNMAAKPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
128 |
|
2014-02-11 |
|
| 857-313
| 8 |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2012-12-21 |
|
| 857-313
| 9 |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2012-12-21 |
|
| 857-315
| A |
BSTPMALL5MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
128 |
|
|
|
| 857-315
| 0 |
CMBRMAORDSG |
4018 LEVEL 3 COMMUNICATIONS, LLC - MA |
128 |
|
2017-12-08 |
|
| 857-315
| 1 |
CMBRMAORDSG |
4018 LEVEL 3 COMMUNICATIONS, LLC - MA |
128 |
|
2017-12-08 |
|
| 857-315
| 2 |
CMBRMAORDSG |
4018 LEVEL 3 COMMUNICATIONS, LLC - MA |
128 |
|
2017-12-08 |
|
| 857-315
| 3 |
CMBRMAORDSG |
4018 LEVEL 3 COMMUNICATIONS, LLC - MA |
128 |
|
2017-12-08 |
|
| 857-315
| 4 |
BSTPMALL5MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
128 |
|
2017-12-08 |
|
| 857-315
| 5 |
NWTNMAWAVMD |
318J COMCAST IP PHONE, LLC |
128 |
|
2017-12-09 |
|
| 857-315
| 6 |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
2024-10-11 |
|
| 857-315
| 7 |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2017-12-11 |
|
| 857-315
| 8 |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2017-12-11 |
|
| 857-315
| 9 |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
2024-10-11 |
|
| 857-317
| A |
BSTPMALL5MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
128 |
|
|
|
| 857-317
| 0 |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2013-10-11 |
|
| 857-317
| 1 |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2013-10-11 |
|
| 857-317
| 2 |
NWTNMAWAVMD |
318J COMCAST IP PHONE, LLC |
128 |
|
2014-05-29 |
|
| 857-317
| 3 |
NWTNMAWAVMD |
318J COMCAST IP PHONE, LLC |
128 |
|
2014-05-29 |
|
| 857-317
| 4 |
NWTNMAWAVMD |
318J COMCAST IP PHONE, LLC |
128 |
|
2014-05-29 |
|
| 857-317
| 5 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
128 |
|
2015-01-14 |
|
| 857-317
| 6 |
NWTNMAWAVMD |
318J COMCAST IP PHONE, LLC |
128 |
|
2014-04-12 |
|
| 857-317
| 7 |
BSTPMALL5MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
128 |
|
2013-05-31 |
|
| 857-317
| 8 |
SOVLMAABDS2 |
268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA |
128 |
|
2013-10-24 |
|
| 857-317
| 9 |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2014-08-23 |
|
| 857-318
| A |
CATNMAAKPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
128 |
|
|
|
| 857-318
| 0 |
CATNMAAKPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
128 |
|
2007-12-10 |
|
| 857-318
| 1 |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2008-04-24 |
|
| 857-318
| 2 |
NRTNMAAACM4 |
5562 METROPCS, INC. |
128 |
|
2009-07-06 |
|
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Last updated: Tue, 16 Jun 2026 00:09:45 UTC
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