Local Calling Guide
Area code/prefix search
Cambridge, MA
<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 >>
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 857-242
| 7 |
|
829J PAETEC ITEL, LLC |
128 |
|
2013-09-26 |
|
| 857-242
| 8 |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2012-10-11 |
|
| 857-242
| 9 |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2012-10-11 |
|
| 857-253
| A |
|
829J PAETEC ITEL, LLC |
128 |
|
|
|
| 857-253
| 0 |
|
829J PAETEC ITEL, LLC |
128 |
|
|
|
| 857-253
| 1 |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2006-09-09 |
|
| 857-253
| 2 |
|
829J PAETEC ITEL, LLC |
128 |
|
|
|
| 857-253
| 3 |
SOVLMAAB6MD |
939H COMMIO, LLC |
128 |
|
2024-03-04 |
|
| 857-253
| 4 |
SOVLMAAB6MD |
939H COMMIO, LLC |
128 |
|
2024-03-04 |
|
| 857-253
| 5 |
SOVLMAAB6MD |
939H COMMIO, LLC |
128 |
|
2024-03-04 |
|
| 857-253
| 6 |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
2024-12-30 |
|
| 857-253
| 7 |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
2024-12-30 |
|
| 857-253
| 8 |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
2009-08-04 |
|
| 857-253
| 9 |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
2010-06-14 |
|
| 857-259
| A |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
|
|
| 857-259
| 0 |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2011-07-22 |
|
| 857-259
| 1 |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2011-08-01 |
|
| 857-259
| 2 |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2012-09-01 |
|
| 857-259
| 3 |
BSTNMABLOMD |
990E BANDWIDTH.COM CLEC, LLC - MA |
128 |
|
2011-08-14 |
|
| 857-259
| 4 |
BSTNMABLOMD |
990E BANDWIDTH.COM CLEC, LLC - MA |
128 |
|
2011-08-14 |
|
| 857-259
| 5 |
BSTNMABLOMD |
990E BANDWIDTH.COM CLEC, LLC - MA |
128 |
|
2011-09-01 |
|
| 857-259
| 6 |
NWTNMAWAVMD |
318J COMCAST IP PHONE, LLC |
128 |
|
2011-09-26 |
|
| 857-259
| 7 |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2012-05-31 |
|
| 857-259
| 8 |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
2011-07-21 |
|
| 857-259
| 9 |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2013-06-01 |
|
| 857-270
| A |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
|
|
| 857-270
| 0 |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2014-11-14 |
|
| 857-270
| 1 |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2015-07-27 |
|
| 857-270
| 2 |
CMBRMAORDSG |
4018 LEVEL 3 COMMUNICATIONS, LLC - MA |
128 |
|
2015-07-14 |
|
| 857-270
| 3 |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2015-07-27 |
|
| 857-270
| 4 |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2016-06-17 |
|
| 857-270
| 5 |
CMBRMAORDSG |
4018 LEVEL 3 COMMUNICATIONS, LLC - MA |
128 |
|
2015-09-08 |
|
| 857-270
| 6 |
CMBRMAORDSG |
4018 LEVEL 3 COMMUNICATIONS, LLC - MA |
128 |
|
2015-09-08 |
|
| 857-270
| 7 |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2017-05-10 |
|
| 857-270
| 8 |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2016-06-17 |
|
| 857-270
| 9 |
|
515J IP HORIZON LLC |
128 |
|
2016-07-01 |
|
| 857-285
| A |
|
829J PAETEC ITEL, LLC |
128 |
|
|
|
| 857-285
| 0 |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2013-06-30 |
|
| 857-285
| 1 |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2013-06-30 |
|
| 857-285
| 2 |
BSTNMABLOMD |
990E BANDWIDTH.COM CLEC, LLC - MA |
128 |
|
2014-06-05 |
|
| 857-285
| 3 |
BSTNMABLOMD |
990E BANDWIDTH.COM CLEC, LLC - MA |
128 |
|
2014-06-05 |
|
| 857-285
| 4 |
BSTNMABLOMD |
990E BANDWIDTH.COM CLEC, LLC - MA |
128 |
|
2014-06-05 |
|
| 857-285
| 5 |
BSTNMABLOMD |
990E BANDWIDTH.COM CLEC, LLC - MA |
128 |
|
2014-06-05 |
|
| 857-285
| 6 |
NWTNMAWAVMD |
318J COMCAST IP PHONE, LLC |
128 |
|
2014-08-15 |
|
| 857-285
| 7 |
CMBRMAORDSG |
4018 LEVEL 3 COMMUNICATIONS, LLC - MA |
128 |
|
2020-02-07 |
|
| 857-285
| 8 |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2013-12-03 |
|
| 857-285
| 9 |
|
829J PAETEC ITEL, LLC |
128 |
|
2012-10-15 |
|
| 857-298
| A |
CMBRMABENMD |
624H ONVOY SPECTRUM, LLC |
128 |
|
|
|
| 857-298
| 0 |
CMBRMABENMD |
624H ONVOY SPECTRUM, LLC |
128 |
|
2017-11-20 |
|
| 857-298
| 1 |
CMBRMABENMD |
624H ONVOY SPECTRUM, LLC |
128 |
|
2020-07-03 |
|
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Last updated: Thu, 05 Feb 2026 23:41:55 UTC
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