Local Calling Guide
Area code/prefix search
Washington Zone 4, MD
<< 1 2 3 4 5 6 7 8 9 10 11 12 >>
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 301-683
| 1 |
WASHDCTTDS0 |
7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC |
236 |
|
|
|
| 301-683
| 2 |
WASHDCTTDS0 |
7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC |
236 |
|
|
|
| 301-683
| 3 |
WASHDCTTDS0 |
7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC |
236 |
|
|
|
| 301-683
| 4 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2014-12-13 |
|
| 301-683
| 5 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2014-10-24 |
|
| 301-683
| 6 |
WASHDCTTDS0 |
7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC |
236 |
|
|
|
| 301-683
| 7 |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2011-02-18 |
|
| 301-683
| 8 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2011-02-18 |
|
| 301-683
| 9 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2012-09-06 |
|
| 301-699
| A |
HYVLMDHYDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-731
| A |
LNHMMDLNDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-772
| A |
LDVRMDLODS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-773
| A |
LDVRMDLODS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-779
| A |
HYVLMDHYDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-781
| A |
WASHDCSWMMD |
624H ONVOY SPECTRUM, LLC |
236 |
|
|
|
| 301-781
| 0 |
WASHDCSWMMD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2022-06-18 |
|
| 301-781
| 1 |
WASHDCSWMMD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2022-06-18 |
|
| 301-781
| 2 |
WASHDCSWMMD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2022-06-18 |
|
| 301-781
| 3 |
WASHDCSWMMD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2022-06-18 |
|
| 301-781
| 4 |
WASHDCSWMMD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2022-06-18 |
|
| 301-781
| 5 |
WASHDCSWMMD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2022-06-18 |
|
| 301-781
| 6 |
WASHDCSWMMD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2022-06-18 |
|
| 301-781
| 7 |
WASHDCSWMMD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2022-06-18 |
|
| 301-781
| 8 |
WASHDCSWMMD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2022-06-18 |
|
| 301-781
| 9 |
WASHDCSWMMD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2022-06-18 |
|
| 301-789
| A |
CHCHMDBEPS0 |
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2024-01-16 |
|
| 301-789
| 0 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2002-10-05 |
|
| 301-789
| 1 |
CHCHMDBE6MD |
4716 PAETEC COMMUNICATIONS, INC. - MD |
236 |
|
2005-02-10 |
|
| 301-789
| 2 |
CHCHMDBE6MD |
4716 PAETEC COMMUNICATIONS, INC. - MD |
236 |
|
2005-02-10 |
|
| 301-789
| 3 |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2008-02-15 |
|
| 301-789
| 4 |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2007-11-15 |
|
| 301-789
| 5 |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2007-04-20 |
|
| 301-789
| 6 |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2007-04-20 |
|
| 301-789
| 7 |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2007-04-20 |
|
| 301-789
| 8 |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2007-11-15 |
|
| 301-789
| 9 |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2007-02-15 |
|
| 301-832
| A |
WASHDCDTDS1 |
7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC |
236 |
|
|
|
| 301-832
| 0 |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2008-06-05 |
|
| 301-832
| 1 |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2008-07-03 |
|
| 301-832
| 2 |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2008-02-15 |
|
| 301-832
| 3 |
WASHDCMTX7X |
2697 CTC COMMUNICATIONS CORP. - MD |
236 |
|
2006-06-24 |
|
| 301-832
| 4 |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2008-09-01 |
|
| 301-832
| 5 |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2008-10-03 |
|
| 301-832
| 6 |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2008-11-03 |
|
| 301-832
| 7 |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2009-09-09 |
|
| 301-832
| 8 |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2009-06-01 |
|
| 301-832
| 9 |
WASHDCDTDS1 |
7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC |
236 |
|
|
|
| 301-851
| A |
HYVLMDHYDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-851
| 0 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2014-08-29 |
|
| 301-851
| 1 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2014-10-10 |
|
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Last updated: Tue, 16 Apr 2024 01:38:01 UTC
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