Local Calling Guide
Area code/prefix search
Washington Zone 10, MD
<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 >>
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 301-795
| 2 |
WASHDCINDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 301-795
| 3 |
WASHDCINDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 301-795
| 4 |
WASHDCINDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2008-02-08 |
|
| 301-795
| 5 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2008-11-15 |
|
| 301-795
| 6 |
WASHDCINDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 301-795
| 7 |
WASHDCINDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 301-795
| 8 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2008-11-15 |
|
| 301-795
| 9 |
WASHDCINDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 301-825
| A |
WASHDCSWDS8 |
7421 AT&T - LOCAL |
236 |
|
|
|
| 301-825
| 0 |
WASHDCSWDS8 |
7421 AT&T - LOCAL |
236 |
|
|
|
| 301-825
| 1 |
BTVLMD12CMA |
5562 METROPCS, INC. |
236 |
|
2013-08-01 |
|
| 301-825
| 2 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2008-09-19 |
|
| 301-825
| 3 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2008-09-19 |
|
| 301-825
| 4 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2008-09-19 |
|
| 301-825
| 5 |
MCLNVA23DS4 |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
2006-12-08 |
|
| 301-825
| 6 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2008-09-19 |
|
| 301-825
| 7 |
RKVLMDRVDS1 |
9212 VERIZON MARYLAND, INC. |
236 |
|
2006-12-27 |
|
| 301-825
| 8 |
MCLNVA23DS4 |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
2006-12-08 |
|
| 301-825
| 9 |
MCLNVA23DS4 |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
2006-12-08 |
|
| 301-838
| A |
RKVLMDRVDS1 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-838
| 0 |
RKVLMDRVDS1 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-838
| 1 |
BTVLMD18GT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2022-05-05 |
|
| 301-838
| 2 |
RKVLMDRVDS1 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-838
| 3 |
RKVLMDRVDS1 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-838
| 4 |
RKVLMDRVDS1 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-838
| 5 |
RKVLMDRVDS1 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-838
| 6 |
RKVLMDRVDS1 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-838
| 7 |
RKVLMDRVDS1 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-838
| 8 |
RKVLMDRVDS1 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-838
| 9 |
RKVLMDRVDS1 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-840
| A |
GTBGMDGBPS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-903
| A |
GMTWMDGNDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-917
| A |
LNHMMDADGT0 |
8832 STARPOWER COMMUNICATIONS, LLC - MD |
236 |
|
|
|
| 301-917
| 0 |
LNHMMDADGT0 |
8832 STARPOWER COMMUNICATIONS, LLC - MD |
236 |
|
|
|
| 301-917
| 1 |
LNHMMDADGT0 |
8832 STARPOWER COMMUNICATIONS, LLC - MD |
236 |
|
|
|
| 301-917
| 2 |
|
829J PAETEC ITEL, LLC |
236 |
|
2007-05-15 |
|
| 301-917
| 3 |
MCLNVA23DS4 |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
2007-12-05 |
|
| 301-917
| 4 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2008-02-04 |
|
| 301-917
| 5 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2007-10-12 |
|
| 301-917
| 6 |
|
829J PAETEC ITEL, LLC |
236 |
|
2005-07-08 |
|
| 301-917
| 7 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2008-02-04 |
|
| 301-917
| 8 |
LNHMMDADGT0 |
8832 STARPOWER COMMUNICATIONS, LLC - MD |
236 |
|
|
|
| 301-917
| 9 |
SLSPMD91DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
236 |
|
2013-05-03 |
|
| 301-921
| A |
GTBGMDGBPS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-921
| 0 |
GTBGMDGBPS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-921
| 1 |
GTBGMDGBPS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-921
| 2 |
GTBGMDGBPS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-921
| 3 |
GTBGMDGBPS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-921
| 4 |
GTBGMDGBPS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 301-921
| 5 |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2014-09-20 |
|
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Last updated: Wed, 04 Mar 2026 03:00:52 UTC
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