Local Calling Guide
Area code/prefix search
Washington Zone 4, MD
<< 1 2 3 4 5 6 7 8 9 10 11 12 13 >>
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 240-696
| 8 |
MCLNVA23DS4 |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
2005-04-03 |
|
| 240-696
| 9 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2013-02-11 |
|
| 240-714
| A |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
|
|
| 240-714
| 0 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2015-12-24 |
|
| 240-714
| 1 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2015-12-24 |
|
| 240-714
| 2 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2015-12-24 |
|
| 240-714
| 3 |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2015-11-14 |
|
| 240-714
| 4 |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2015-08-12 |
|
| 240-714
| 5 |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2016-02-24 |
|
| 240-714
| 6 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2015-08-14 |
|
| 240-714
| 7 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2015-08-14 |
|
| 240-714
| 8 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2015-04-20 |
|
| 240-714
| 9 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2015-04-20 |
|
| 240-726
| A |
ARTNVAARXGY |
478J NUSO, LLC |
236 |
|
|
|
| 240-726
| 0 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-07-08 |
|
| 240-726
| 1 |
ARTNVAARXGY |
478J NUSO, LLC |
236 |
|
2020-10-27 |
|
| 240-726
| 2 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-07-08 |
|
| 240-726
| 3 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-07-08 |
|
| 240-726
| 4 |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2021-07-30 |
|
| 240-726
| 5 |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2021-07-30 |
|
| 240-726
| 6 |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2022-04-25 |
|
| 240-726
| 7 |
WASHDCSWMMD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-05-21 |
|
| 240-726
| 8 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-05-30 |
|
| 240-726
| 9 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-05-30 |
|
| 240-737
| A |
|
829J PAETEC ITEL, LLC |
236 |
|
2025-04-02 |
|
| 240-764
| A |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 240-764
| 0 |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 240-764
| 1 |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 240-764
| 2 |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2005-08-15 |
|
| 240-764
| 3 |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2005-08-15 |
|
| 240-764
| 4 |
MCLNVA23DS4 |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
2003-01-12 |
|
| 240-764
| 5 |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2007-09-19 |
|
| 240-764
| 6 |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2007-09-19 |
|
| 240-764
| 7 |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2007-09-19 |
|
| 240-764
| 8 |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2007-09-19 |
|
| 240-764
| 9 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2013-05-20 |
|
| 240-770
| A |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
|
|
| 240-770
| 0 |
MCLNVA23DS4 |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
2008-02-13 |
|
| 240-770
| 1 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2010-11-29 |
|
| 240-770
| 2 |
MCLNVA23DS4 |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
2008-02-13 |
|
| 240-770
| 3 |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2008-04-08 |
|
| 240-770
| 4 |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2008-04-08 |
|
| 240-770
| 5 |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2008-04-08 |
|
| 240-770
| 6 |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2006-12-14 |
|
| 240-770
| 7 |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2006-12-14 |
|
| 240-770
| 8 |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2006-12-14 |
|
| 240-770
| 9 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2010-11-29 |
|
| 240-791
| A |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
|
|
| 240-791
| 0 |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2022-06-14 |
|
| 240-791
| 1 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-11-04 |
|
<< 1 2 3 4 5 6 7 8 9 10 11 12 13 >>
Last updated: Sat, 02 May 2026 12:20:53 UTC
Sponsored by: Execulink Telecom
Like this site? We accept donations via PayPal.