Local Calling Guide
Area code/prefix search
Washington Zone 2, MD
<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 >>
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 240-630
| 5 |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2012-10-09 |
|
| 240-630
| 6 |
|
7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD |
236 |
|
2013-12-02 |
|
| 240-630
| 7 |
|
508J CENTURYLINK COMMUNICATIONS, LLC |
236 |
|
2013-10-01 |
|
| 240-630
| 8 |
|
318J COMCAST IP PHONE, LLC |
236 |
|
2013-08-01 |
|
| 240-630
| 9 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2014-03-23 |
|
| 240-644
| A |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 240-644
| 0 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 240-644
| 1 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 240-644
| 2 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2004-06-04 |
|
| 240-644
| 3 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2004-07-16 |
|
| 240-644
| 4 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2004-07-14 |
|
| 240-644
| 5 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2004-07-14 |
|
| 240-644
| 6 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 240-644
| 7 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2004-07-14 |
|
| 240-644
| 8 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2004-04-12 |
|
| 240-644
| 9 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2004-04-23 |
|
| 240-671
| A |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
|
|
| 240-671
| 0 |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2010-08-19 |
|
| 240-671
| 1 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2005-04-20 |
|
| 240-671
| 2 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2005-04-12 |
|
| 240-671
| 3 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2005-03-07 |
|
| 240-671
| 4 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2005-03-07 |
|
| 240-671
| 5 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2005-03-07 |
|
| 240-671
| 6 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2004-12-19 |
|
| 240-671
| 7 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2004-12-19 |
|
| 240-671
| 8 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2005-05-10 |
|
| 240-671
| 9 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2004-07-14 |
|
| 240-673
| A |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
|
|
| 240-673
| 0 |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2019-07-19 |
|
| 240-673
| 1 |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2019-07-19 |
|
| 240-673
| 2 |
|
876D ONVOY, LLC - MD |
236 |
|
2020-04-30 |
|
| 240-673
| 3 |
|
876D ONVOY, LLC - MD |
236 |
|
2020-04-30 |
|
| 240-673
| 4 |
|
197D VONAGE AMERICA LLC |
236 |
|
2020-05-20 |
|
| 240-673
| 5 |
|
197D VONAGE AMERICA LLC |
236 |
|
2020-05-20 |
|
| 240-673
| 6 |
|
876D ONVOY, LLC - MD |
236 |
|
2020-09-11 |
|
| 240-673
| 7 |
|
876D ONVOY, LLC - MD |
236 |
|
2020-09-11 |
|
| 240-673
| 8 |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2022-08-27 |
|
| 240-673
| 9 |
|
478J NUSO, LLC |
236 |
|
2020-10-04 |
|
| 240-694
| A |
BTHSMDWWDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 240-694
| 0 |
|
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 240-694
| 1 |
|
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 240-694
| 2 |
|
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 240-694
| 3 |
|
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 240-694
| 4 |
|
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 240-694
| 5 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2005-11-21 |
|
| 240-694
| 6 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2004-08-06 |
|
| 240-694
| 7 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2004-08-06 |
|
| 240-694
| 8 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2004-09-13 |
|
| 240-694
| 9 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2004-09-13 |
|
| 240-743
| A |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
|
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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