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 |
| 240-762
| 6 |
|
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
2014-07-04 |
|
| 240-762
| 7 |
|
7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC |
236 |
|
2013-05-08 |
|
| 240-762
| 8 |
|
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2013-04-06 |
|
| 240-762
| 9 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2014-03-23 |
|
| 240-781
| A |
WASHDCINDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 240-781
| 0 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2015-12-14 |
|
| 240-781
| 1 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2015-12-14 |
|
| 240-781
| 2 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2015-12-14 |
|
| 240-781
| 3 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2015-10-02 |
|
| 240-781
| 4 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2015-11-06 |
|
| 240-781
| 5 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2015-11-06 |
|
| 240-781
| 6 |
|
876D ONVOY, LLC - MD |
236 |
|
2017-05-23 |
|
| 240-781
| 7 |
|
508J CENTURYLINK COMMUNICATIONS, LLC |
236 |
|
2016-03-28 |
|
| 240-781
| 8 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2015-11-27 |
|
| 240-781
| 9 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2015-11-27 |
|
| 240-783
| A |
BLCRVAAJCM8 |
8605 MTE, INC. DBA MTE PAGING NETWORK |
236 |
|
|
|
| 240-800
| A |
CHCHMDBEPS0 |
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2024-01-16 |
|
| 240-800
| 0 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2012-08-17 |
|
| 240-800
| 1 |
|
876D ONVOY, LLC - MD |
236 |
|
2015-07-30 |
|
| 240-800
| 2 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2012-08-27 |
|
| 240-800
| 3 |
|
318J COMCAST IP PHONE, LLC |
236 |
|
2014-06-10 |
|
| 240-800
| 4 |
|
318J COMCAST IP PHONE, LLC |
236 |
|
2012-09-22 |
|
| 240-800
| 5 |
|
829J PAETEC ITEL, LLC |
236 |
|
2014-08-10 |
|
| 240-800
| 6 |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2015-07-04 |
|
| 240-800
| 7 |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2015-07-04 |
|
| 240-800
| 8 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2012-08-17 |
|
| 240-800
| 9 |
|
515J IP HORIZON LLC |
236 |
|
2013-09-06 |
|
| 240-802
| A |
CHCHMDBEX4X |
551G NUSO, LLC |
236 |
|
|
|
| 240-802
| 0 |
|
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2015-07-19 |
|
| 240-802
| 1 |
|
551G NUSO, LLC |
236 |
|
2013-07-12 |
|
| 240-802
| 2 |
|
318J COMCAST IP PHONE, LLC |
236 |
|
2015-07-14 |
|
| 240-802
| 3 |
|
7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD |
236 |
|
2016-03-16 |
|
| 240-802
| 4 |
|
7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD |
236 |
|
2015-03-04 |
|
| 240-802
| 5 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2017-08-25 |
|
| 240-802
| 6 |
|
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2015-06-01 |
|
| 240-802
| 7 |
|
876D ONVOY, LLC - MD |
236 |
|
2014-10-24 |
|
| 240-802
| 8 |
|
876D ONVOY, LLC - MD |
236 |
|
2014-10-24 |
|
| 240-802
| 9 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2014-10-10 |
|
| 240-832
| A |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
|
|
| 240-832
| 0 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
|
|
| 240-832
| 1 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
|
|
| 240-832
| 2 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
|
|
| 240-832
| 3 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
|
|
| 240-832
| 4 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
|
|
| 240-832
| 5 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
|
|
| 240-832
| 6 |
|
5562 METROPCS, INC. |
236 |
|
|
|
| 240-832
| 7 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2002-07-12 |
|
| 240-832
| 8 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2002-10-07 |
|
| 240-832
| 9 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2002-10-07 |
|
| 240-855
| A |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
|
|
<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 >>
Last updated: Thu, 29 Jan 2026 14:35:03 UTC
Sponsored by: ISP Telecom
Like this site? We accept donations via PayPal.