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 |
| 240-567
| A |
RKVLMDRVDS1 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
| 240-567
| 0 |
|
9212 VERIZON MARYLAND, INC. |
236 |
|
2006-08-26 |
|
| 240-567
| 1 |
|
9212 VERIZON MARYLAND, INC. |
236 |
|
2006-08-26 |
|
| 240-567
| 2 |
|
9212 VERIZON MARYLAND, INC. |
236 |
|
2006-08-26 |
|
| 240-567
| 3 |
|
9212 VERIZON MARYLAND, INC. |
236 |
|
2006-08-26 |
|
| 240-567
| 4 |
|
9212 VERIZON MARYLAND, INC. |
236 |
|
2006-08-26 |
|
| 240-567
| 5 |
|
9212 VERIZON MARYLAND, INC. |
236 |
|
2006-08-26 |
|
| 240-567
| 6 |
|
9212 VERIZON MARYLAND, INC. |
236 |
|
2006-08-26 |
|
| 240-567
| 7 |
|
9212 VERIZON MARYLAND, INC. |
236 |
|
2006-08-26 |
|
| 240-567
| 8 |
|
9212 VERIZON MARYLAND, INC. |
236 |
|
2006-08-26 |
|
| 240-567
| 9 |
|
9212 VERIZON MARYLAND, INC. |
236 |
|
2006-08-26 |
|
| 240-599
| A |
MCLNVA23DS4 |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
|
|
| 240-599
| 0 |
|
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
|
|
| 240-599
| 1 |
|
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
|
|
| 240-599
| 2 |
|
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
|
|
| 240-599
| 3 |
|
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
|
|
| 240-599
| 4 |
|
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
|
|
| 240-599
| 5 |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2014-05-30 |
|
| 240-599
| 6 |
|
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2005-06-02 |
|
| 240-599
| 7 |
|
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
|
|
| 240-599
| 8 |
|
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
|
|
| 240-599
| 9 |
|
145J TERRA NOVA TELECOM INC. |
236 |
|
2021-07-16 |
|
| 240-614
| A |
BTVLMD12CMA |
5562 METROPCS, INC. |
236 |
|
|
|
| 240-614
| 0 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2013-09-24 |
|
| 240-614
| 1 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2013-09-24 |
|
| 240-614
| 2 |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2014-06-11 |
|
| 240-614
| 3 |
|
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2013-11-22 |
|
| 240-614
| 4 |
|
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
2014-08-18 |
|
| 240-614
| 5 |
|
5562 METROPCS, INC. |
236 |
|
2014-09-11 |
|
| 240-614
| 6 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2013-12-27 |
|
| 240-614
| 7 |
|
318J COMCAST IP PHONE, LLC |
236 |
|
2013-11-22 |
|
| 240-614
| 8 |
|
5562 METROPCS, INC. |
236 |
|
2014-10-15 |
|
| 240-614
| 9 |
|
5562 METROPCS, INC. |
236 |
|
2013-09-14 |
|
| 240-618
| A |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
|
|
| 240-618
| 0 |
|
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2014-11-21 |
|
| 240-618
| 1 |
|
7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC |
236 |
|
2015-01-05 |
|
| 240-618
| 2 |
|
876D ONVOY, LLC - MD |
236 |
|
2014-12-31 |
|
| 240-618
| 3 |
|
876D ONVOY, LLC - MD |
236 |
|
2014-12-31 |
|
| 240-618
| 4 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2015-02-14 |
|
| 240-618
| 5 |
|
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2016-05-24 |
|
| 240-618
| 6 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2015-02-14 |
|
| 240-618
| 7 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2014-11-24 |
|
| 240-618
| 8 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2014-11-24 |
|
| 240-618
| 9 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2017-01-17 |
|
| 240-620
| A |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 240-620
| 0 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 240-620
| 1 |
|
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2003-08-03 |
|
| 240-620
| 2 |
|
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2003-07-05 |
|
| 240-620
| 3 |
|
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2003-08-19 |
|
| 240-620
| 4 |
|
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2003-11-03 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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