Local Calling Guide
Area code/prefix search
Washington Zone 13, MD
<< 1 2 3 4 5 6 7 8 9 10 >>
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 301-701
| A |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
|
|
| 301-701
| 0 |
BTVLMD127MD |
5562 METROPCS, INC. |
236 |
|
2018-04-08 |
|
| 301-701
| 2 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2020-12-03 |
|
| 301-701
| 3 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2020-12-03 |
|
| 301-701
| 4 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2020-12-03 |
|
| 301-701
| 5 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2020-12-03 |
|
| 301-701
| 6 |
WASHDC125MD |
197D VONAGE AMERICA LLC |
236 |
|
2020-05-20 |
|
| 301-716
| A |
MRKKMDMKDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-796
| A |
BTVLMDBVDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-823
| A |
WASHDCDTDS1 |
7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC |
236 |
|
|
|
| 301-823
| 2 |
WASHDCDTDS1 |
7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC |
236 |
|
2008-10-10 |
|
| 301-823
| 3 |
WASHDCMTX7X |
2697 CTC COMMUNICATIONS CORP. - MD |
236 |
|
2012-11-21 |
|
| 301-823
| 4 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2018-06-16 |
|
| 301-823
| 5 |
WASHDC125MD |
197D VONAGE AMERICA LLC |
236 |
|
2020-05-20 |
|
| 301-823
| 7 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2019-04-29 |
|
| 301-823
| 8 |
LARLMDCCDS0 |
4492 VDL, INC. DBA GLOBAL TELECOM BROKERS - MD |
236 |
|
2004-04-06 |
|
| 301-823
| 9 |
WASHDCSWMMD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-11-08 |
|
| 301-837
| A |
WASHDCINDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 301-837
| 0 |
WASHDCINDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 301-837
| 1 |
WASHDCINDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 301-837
| 2 |
WASHDCINDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 301-837
| 3 |
WASHDCINDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 301-837
| 4 |
WASHDCINDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2018-10-28 |
|
| 301-837
| 5 |
WASHDCINDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 301-837
| 6 |
WASHDCINDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2018-10-28 |
|
| 301-837
| 7 |
WASHDCINDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2018-10-28 |
|
| 301-837
| 8 |
WASHDCINDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2015-03-14 |
|
| 301-837
| 9 |
WASHDCINDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 301-886
| A |
LARLMDLRDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-886
| 0 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2004-03-26 |
|
| 301-886
| 2 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2019-04-15 |
|
| 301-886
| 3 |
CHCHMDBE1MD |
8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) |
236 |
|
2006-05-05 |
|
| 301-886
| 4 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2019-04-15 |
|
| 301-886
| 6 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2019-04-15 |
|
| 301-886
| 7 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2019-04-15 |
|
| 301-886
| 8 |
HRNDVACKAMD |
1958 ATX TELECOMMUNICATIONS SERVICES, LTD. |
236 |
|
2003-04-06 |
|
| 301-901
| A |
CLPKMDBWDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-901
| 0 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2023-10-15 |
|
| 301-901
| 1 |
CLPKMDBWDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-901
| 2 |
CLPKMDBWDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-901
| 3 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2023-10-15 |
|
| 301-901
| 4 |
CLPKMDBWDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-901
| 5 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2023-10-15 |
|
| 301-901
| 6 |
CLPKMDBWDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-901
| 7 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2023-10-15 |
|
| 301-901
| 8 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2023-10-15 |
|
| 301-901
| 9 |
CLPKMDBWDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-902
| A |
BTVLMDBVDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-902
| 0 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2020-12-03 |
|
| 301-902
| 1 |
BTVLMDBVDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
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Last updated: Tue, 16 Apr 2024 01:38:01 UTC
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