Local Calling Guide
Area code/prefix search
Washington Zone 2, MD
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| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 301-907
| 0 |
CHCHMDBEDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-907
| 1 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2018-02-05 |
|
| 301-907
| 2 |
CHCHMDBEDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-907
| 3 |
CHCHMDBEDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-907
| 4 |
CHCHMDBEDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-907
| 5 |
CHCHMDBEDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-907
| 6 |
CHCHMDBEDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-907
| 7 |
CHCHMDBEDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-907
| 8 |
CHCHMDBEDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-907
| 9 |
CHCHMDBEDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-910
| A |
CHCHMDBEWMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
|
|
| 301-913
| A |
CHCHMDBEDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-913
| 0 |
CHCHMDBEDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-913
| 1 |
WASHDCINDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2017-11-24 |
|
| 301-913
| 2 |
CHCHMDBEDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-913
| 3 |
WASHDCINDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2017-11-24 |
|
| 301-913
| 4 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2017-11-29 |
|
| 301-913
| 5 |
CHCHMDBEDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-913
| 6 |
WASHDCINDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2017-11-24 |
|
| 301-913
| 7 |
WASHDCINDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2017-11-24 |
|
| 301-913
| 8 |
WASHDCINDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2017-11-24 |
|
| 301-913
| 9 |
CHCHMDBEDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-915
| A |
LNHMMDADGT0 |
8832 STARPOWER COMMUNICATIONS, LLC - MD |
236 |
|
|
|
| 301-915
| 0 |
LNHMMDADGT0 |
8832 STARPOWER COMMUNICATIONS, LLC - MD |
236 |
|
|
|
| 301-915
| 1 |
LNHMMDADGT0 |
8832 STARPOWER COMMUNICATIONS, LLC - MD |
236 |
|
|
|
| 301-915
| 2 |
LNHMMDADGT0 |
8832 STARPOWER COMMUNICATIONS, LLC - MD |
236 |
|
|
|
| 301-915
| 3 |
LNHMMDADGT0 |
8832 STARPOWER COMMUNICATIONS, LLC - MD |
236 |
|
|
|
| 301-915
| 4 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2006-06-05 |
|
| 301-915
| 5 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2006-06-05 |
|
| 301-915
| 6 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2006-06-05 |
|
| 301-915
| 7 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2006-06-05 |
|
| 301-915
| 8 |
LNHMMDADGT0 |
8832 STARPOWER COMMUNICATIONS, LLC - MD |
236 |
|
|
|
| 301-915
| 9 |
WASHDCSWXZZ |
829J PAETEC ITEL, LLC |
236 |
|
2004-03-27 |
|
| 301-919
| A |
CHCHMDBEWMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
|
|
| 301-941
| A |
CHCHMDBEDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-941
| 0 |
CHCHMDBEDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-941
| 1 |
CHCHMDBEDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-941
| 2 |
CHCHMDBEDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-941
| 3 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2019-10-02 |
|
| 301-941
| 4 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2019-05-06 |
|
| 301-941
| 5 |
WASHDC126MD |
964H BARR TELL USA, INC. |
236 |
|
2018-05-08 |
|
| 301-941
| 6 |
OCQNVAXAVMD |
7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC |
236 |
|
2017-10-02 |
|
| 301-941
| 7 |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2018-10-19 |
|
| 301-941
| 8 |
CHCHMDBEDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-941
| 9 |
CHCHMDBEDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-951
| A |
CHCHMDBEDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-961
| A |
CHCHMDBEDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-968
| A |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 301-968
| 0 |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 301-968
| 1 |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
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Last updated: Tue, 29 Sep 2026 03:00:13 UTC
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