Local Calling Guide
Area code/prefix search
Washington Zone 10, MD
<< 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 |
| 240-406
| 2 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2010-09-05 |
|
| 240-406
| 3 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2010-09-05 |
|
| 240-406
| 4 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2010-10-17 |
|
| 240-406
| 5 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2010-10-28 |
|
| 240-406
| 6 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2010-02-11 |
|
| 240-406
| 7 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2010-06-26 |
|
| 240-406
| 8 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2011-01-27 |
|
| 240-406
| 9 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2011-01-27 |
|
| 240-408
| A |
BTVLMD18GT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
|
|
| 240-408
| 0 |
BTVLMD18GT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2009-12-12 |
|
| 240-408
| 1 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2010-12-03 |
|
| 240-408
| 2 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2010-12-03 |
|
| 240-408
| 3 |
|
829J PAETEC ITEL, LLC |
236 |
|
2010-08-11 |
|
| 240-408
| 4 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2010-08-19 |
|
| 240-408
| 5 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2010-08-19 |
|
| 240-408
| 6 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2010-12-03 |
|
| 240-408
| 7 |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2011-03-15 |
|
| 240-408
| 8 |
BTVLMD18G00 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2023-08-06 |
|
| 240-408
| 9 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2012-12-10 |
|
| 240-421
| A |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
|
|
| 240-421
| 0 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
|
|
| 240-421
| 1 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
|
|
| 240-421
| 2 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
|
|
| 240-421
| 3 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2005-08-01 |
|
| 240-421
| 4 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2005-09-15 |
|
| 240-421
| 5 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2005-10-09 |
|
| 240-421
| 6 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
|
|
| 240-421
| 7 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2005-12-17 |
|
| 240-421
| 8 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2008-07-17 |
|
| 240-421
| 9 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
|
|
| 240-428
| A |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
|
|
| 240-428
| 0 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2012-07-15 |
|
| 240-428
| 1 |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2011-02-13 |
|
| 240-428
| 2 |
MCLNVA23DS4 |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
2011-04-16 |
|
| 240-428
| 3 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2012-10-12 |
|
| 240-428
| 4 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2012-10-12 |
|
| 240-428
| 5 |
BTVLMD12CMA |
5562 METROPCS, INC. |
236 |
|
2013-08-20 |
|
| 240-428
| 6 |
MCLNVA23DS4 |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
2011-09-24 |
|
| 240-428
| 7 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2012-10-20 |
|
| 240-428
| 8 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2010-03-06 |
|
| 240-428
| 9 |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2013-06-05 |
|
| 240-447
| A |
BTVLMD18GT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
|
|
| 240-453
| A |
RKVLMDRVDS1 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 240-453
| 0 |
RKVLMDRVDS1 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 240-453
| 1 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2017-01-17 |
|
| 240-453
| 2 |
RKVLMDRVDS1 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 240-453
| 3 |
RKVLMDRVDS1 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 240-453
| 4 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2014-10-27 |
|
| 240-453
| 5 |
RKVLMDRVDS1 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 240-453
| 6 |
RKVLMDRVDS1 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
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Last updated: Sun, 17 May 2026 03:26:51 UTC
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