Local Calling Guide
Area code/prefix search
NPA: 301
[Rate centres in NPA 301]
[Dial plan for NPA 301]
<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 >>
NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
301-283
| A |
Washington Zone 6 |
MD |
BRRDMDBRRS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-283
| 0 |
Washington Zone 6 |
MD |
BRRDMDBRRS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-283
| 1 |
Washington Zone 6 |
MD |
BTVLMD12CM9 |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2008-07-14 |
|
301-283
| 2 |
Washington Zone 6 |
MD |
BRRDMDBRRS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-283
| 3 |
Washington Zone 6 |
MD |
BRRDMDBRRS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-283
| 4 |
Washington Zone 6 |
MD |
BRRDMDBRRS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-283
| 5 |
Washington Zone 6 |
MD |
BRRDMDBRRS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-283
| 6 |
Washington Zone 6 |
MD |
BRRDMDBRRS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-283
| 7 |
Washington Zone 6 |
MD |
BTVLMD12CM9 |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2013-10-11 |
|
301-283
| 8 |
Washington Zone 6 |
MD |
BTVLMD12CM9 |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2008-10-12 |
|
301-283
| 9 |
Washington Zone 6 |
MD |
BTVLMD12CM9 |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2013-10-11 |
|
301-284
| A |
Washington Zone 10 |
MD |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
301-284
| 0 |
Washington Zone 10 |
MD |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2014-05-30 |
|
301-284
| 1 |
Washington Zone 10 |
MD |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
301-284
| 2 |
Washington Zone 10 |
MD |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
301-284
| 3 |
Washington Zone 10 |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2016-01-29 |
|
301-284
| 4 |
Washington Zone 10 |
MD |
HRNDVACKBMD |
5978 BROADVIEW NETWORKS OF VIRGINIA, INC. - VA |
236 |
|
2013-03-12 |
|
301-284
| 5 |
Washington Zone 10 |
MD |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
301-284
| 6 |
Washington Zone 10 |
MD |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
301-284
| 7 |
Washington Zone 10 |
MD |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
301-284
| 8 |
Washington Zone 10 |
MD |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2004-11-21 |
|
301-284
| 9 |
Washington Zone 10 |
MD |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
301-285
| A |
Washington Zone 3 |
MD |
SLSPMDSSDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-286
| A |
Washington Zone 13 |
MD |
CLPKMDBWDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-287
| A |
Washington Zone 11 |
MD |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
301-287
| 0 |
Washington Zone 11 |
MD |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
301-287
| 1 |
Washington Zone 11 |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2018-10-24 |
|
301-287
| 2 |
Washington Zone 11 |
MD |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
301-287
| 3 |
Washington Zone 11 |
MD |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
301-287
| 4 |
Washington Zone 11 |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2017-12-08 |
|
301-287
| 5 |
Washington Zone 11 |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2017-12-08 |
|
301-287
| 6 |
Washington Zone 11 |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2017-12-08 |
|
301-287
| 7 |
Washington Zone 11 |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2019-03-29 |
|
301-287
| 8 |
Washington Zone 11 |
MD |
HRNDVACKAMD |
1958 ATX TELECOMMUNICATIONS SERVICES, LTD. |
236 |
|
2004-03-27 |
|
301-287
| 9 |
Washington Zone 11 |
MD |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
301-288
| A |
Washington Zone 12 |
MD |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
301-288
| 0 |
Washington Zone 12 |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2004-03-26 |
|
301-288
| 1 |
Washington Zone 12 |
MD |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2010-02-22 |
|
301-288
| 2 |
Washington Zone 12 |
MD |
LARLMDCC5MD |
7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD |
236 |
|
2006-05-28 |
|
301-288
| 3 |
Washington Zone 12 |
MD |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2010-06-26 |
|
301-288
| 4 |
Washington Zone 12 |
MD |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2013-10-04 |
|
301-288
| 5 |
Washington Zone 12 |
MD |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2011-04-23 |
|
301-288
| 6 |
Washington Zone 12 |
MD |
WASHDCSWMMD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-11-08 |
|
301-288
| 7 |
Washington Zone 12 |
MD |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2006-10-09 |
|
301-288
| 8 |
Washington Zone 12 |
MD |
HRNDVACKBMD |
5977 BROADVIEW NETWORKS, INC. - DC |
236 |
|
2011-04-28 |
|
301-288
| 9 |
Washington Zone 12 |
MD |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
301-289
| A |
Washington Zone 13 |
MD |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
301-289
| 2 |
Washington Zone 13 |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2019-04-29 |
|
301-289
| 3 |
Washington Zone 13 |
MD |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
301-289
| 4 |
Washington Zone 13 |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2019-04-29 |
|
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Last updated: Tue, 16 Apr 2024 01:38:01 UTC
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