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 |
301-851
| 2 |
Washington Zone 4 |
MD |
HYVLMDHYDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-851
| 3 |
Washington Zone 4 |
MD |
HYVLMDHYDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-851
| 4 |
Washington Zone 4 |
MD |
HYVLMDHYDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-851
| 5 |
Washington Zone 4 |
MD |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2014-12-12 |
|
301-851
| 6 |
Washington Zone 4 |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2016-02-29 |
|
301-851
| 7 |
Washington Zone 4 |
MD |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
301-851
| 8 |
Washington Zone 4 |
MD |
HYVLMDHYDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-851
| 9 |
Washington Zone 4 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2014-10-10 |
|
301-852
| A |
Washington Zone 4 |
MD |
HYVLMDHYDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-852
| 0 |
Washington Zone 4 |
MD |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2010-02-06 |
|
301-852
| 1 |
Washington Zone 4 |
MD |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2010-06-03 |
|
301-852
| 2 |
Washington Zone 4 |
MD |
HYVLMDHYDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-852
| 3 |
Washington Zone 4 |
MD |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2011-04-14 |
|
301-852
| 4 |
Washington Zone 4 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2008-10-12 |
|
301-852
| 5 |
Washington Zone 4 |
MD |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2010-06-26 |
|
301-852
| 6 |
Washington Zone 4 |
MD |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2010-06-26 |
|
301-852
| 7 |
Washington Zone 4 |
MD |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2010-06-26 |
|
301-852
| 8 |
Washington Zone 4 |
MD |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2011-02-19 |
|
301-852
| 9 |
Washington Zone 4 |
MD |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2011-02-19 |
|
301-853
| A |
Washington Zone 4 |
MD |
HYVLMDCMDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-854
| A |
Ashton (Baltimore LATA) |
MD |
CLVLMDCERP0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
2024-01-30 |
|
301-854
| 0 |
Ashton (Baltimore LATA) |
MD |
CLVLMDCERP0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
301-854
| 1 |
Ashton (Baltimore LATA) |
MD |
CLVLMDCERP0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
301-854
| 2 |
Ashton (Baltimore LATA) |
MD |
CLVLMDCERP0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
301-854
| 3 |
Ashton (Baltimore LATA) |
MD |
CLVLMDCERP0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
301-854
| 4 |
Ashton (Baltimore LATA) |
MD |
GLWDMDGDRS1 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
301-854
| 5 |
Ashton (Baltimore LATA) |
MD |
GLWDMDGDRS1 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
301-854
| 6 |
Ashton (Baltimore LATA) |
MD |
GLWDMDGDRS1 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
301-854
| 7 |
Ashton (Baltimore LATA) |
MD |
GLWDMDGDRS1 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
301-854
| 8 |
Ashton (Baltimore LATA) |
MD |
BLTMMDCHXNX |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
238 |
|
|
|
301-854
| 9 |
Ashton (Baltimore LATA) |
MD |
CLVLMDCERP0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
301-855
| A |
Washington Zone 15 (Baltimore LATA) |
MD |
NRBHMDNEDS0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
301-856
| A |
Washington Zone 16 |
MD |
CLTNMDCLDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-857
| A |
Clear Spring |
MD |
HGTWMD53DS0 |
2593 CORE COMMUNICATIONS, INC.- MD |
240 |
|
|
|
301-857
| 0 |
Clear Spring |
MD |
FRDRMDFRPS0 |
2593 CORE COMMUNICATIONS, INC.- MD |
240 |
|
2002-09-10 |
|
301-857
| 1 |
Clear Spring |
MD |
HGTWMDHGDMD |
071F BANDWIDTH.COM CLEC, LLC - MD |
240 |
|
2012-10-06 |
|
301-857
| 2 |
Clear Spring |
MD |
HGTWMDHGDMD |
071F BANDWIDTH.COM CLEC, LLC - MD |
240 |
|
2014-10-20 |
|
301-857
| 3 |
Clear Spring |
MD |
HGTWMDHGDMD |
071F BANDWIDTH.COM CLEC, LLC - MD |
240 |
|
2015-10-29 |
|
301-857
| 4 |
Clear Spring |
MD |
CMLDMDCMEMD |
876D ONVOY, LLC - MD |
240 |
|
2016-09-12 |
|
301-857
| 5 |
Clear Spring |
MD |
CMLDMDCMEMD |
876D ONVOY, LLC - MD |
240 |
|
2016-09-12 |
|
301-857
| 6 |
Clear Spring |
MD |
FRDRMDFRXKX |
508J CENTURYLINK COMMUNICATIONS, LLC |
240 |
|
2016-10-26 |
|
301-857
| 7 |
Clear Spring |
MD |
HGTWMDHGDMD |
071F BANDWIDTH.COM CLEC, LLC - MD |
240 |
|
2015-05-17 |
|
301-857
| 8 |
Clear Spring |
MD |
HGTWMDHGDMD |
071F BANDWIDTH.COM CLEC, LLC - MD |
240 |
|
2006-08-22 |
|
301-857
| 9 |
Clear Spring |
MD |
HGTWMDHGDMD |
071F BANDWIDTH.COM CLEC, LLC - MD |
240 |
|
2015-05-17 |
|
301-858
| A |
Washington Zone 14 (Baltimore LATA) |
MD |
COTNMDCRDS0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
301-859
| A |
Oakland |
MD |
FRDRMDFRXMD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
240 |
|
|
|
301-859
| 0 |
Oakland |
MD |
HGTWMDHGDMD |
071F BANDWIDTH.COM CLEC, LLC - MD |
240 |
|
2004-11-27 |
|
301-859
| 1 |
Oakland |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
240 |
|
2019-05-02 |
|
301-859
| 2 |
Oakland |
MD |
FRDRMDFRXAX |
7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD |
240 |
|
2019-04-22 |
|
301-859
| 3 |
Oakland |
MD |
FRDRMDFRXMD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
240 |
|
2002-03-10 |
|
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Last updated: Tue, 16 Apr 2024 01:38:01 UTC
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