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 |
301-373
| 4 |
Leonardtown |
MD |
HLWDMDHWRS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-373
| 5 |
Leonardtown |
MD |
HLWDMDHWRS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-373
| 6 |
Leonardtown |
MD |
HLWDMDHWRS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-373
| 7 |
Leonardtown |
MD |
HLWDMDHWRS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-373
| 8 |
Leonardtown |
MD |
HLWDMDHWRS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-373
| 9 |
Leonardtown |
MD |
HLWDMDHWRS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-374
| A |
Waldorf |
MD |
WDRFMDWDDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-374
| 0 |
Waldorf |
MD |
WDRFMDWDDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-374
| 1 |
Waldorf |
MD |
WDRFMDWDDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-374
| 2 |
Waldorf |
MD |
WDRFMDWDDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-374
| 3 |
Waldorf |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2019-04-29 |
|
301-374
| 4 |
Waldorf |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2019-04-29 |
|
301-374
| 5 |
Waldorf |
MD |
WDRFMDWDDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-374
| 6 |
Waldorf |
MD |
WDRFMDWDDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-374
| 7 |
Waldorf |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2019-04-29 |
|
301-374
| 8 |
Waldorf |
MD |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2017-05-22 |
|
301-374
| 9 |
Waldorf |
MD |
WDRFMDWDDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-375
| A |
Indian Head |
MD |
BRRDMDBRRS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-375
| 0 |
Indian Head |
MD |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2008-12-13 |
|
301-375
| 1 |
Indian Head |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2004-03-26 |
|
301-375
| 2 |
Indian Head |
MD |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2007-10-22 |
|
301-375
| 3 |
Indian Head |
MD |
WASHDC12OMD |
4820 CAVALIER EAST, LLC - MD |
236 |
|
2010-01-18 |
|
301-375
| 4 |
Indian Head |
MD |
HRNDVACKBMD |
5966 LIGHTWAVE COMMUNICATIONS, LLC - MD |
236 |
|
2005-10-07 |
|
301-375
| 5 |
Indian Head |
MD |
WASLDCRGDS0 |
281E YMAX COMMUNICATIONS CORP. - MD |
236 |
|
2009-09-25 |
|
301-375
| 6 |
Indian Head |
MD |
BRRDMDBRRS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-375
| 7 |
Indian Head |
MD |
BRRDMDBRRS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-375
| 8 |
Indian Head |
MD |
BRRDMDBRRS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-375
| 9 |
Indian Head |
MD |
BRRDMDBRRS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-376
| A |
Laurel |
MD |
LARLMDLRDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-377
| A |
Laurel |
MD |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
|
|
301-377
| 0 |
Laurel |
MD |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
|
|
301-377
| 1 |
Laurel |
MD |
BTVLMD18GT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2010-02-04 |
|
301-377
| 2 |
Laurel |
MD |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2010-06-15 |
|
301-377
| 3 |
Laurel |
MD |
BTVLMD18GT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2010-05-28 |
|
301-377
| 4 |
Laurel |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2005-02-19 |
|
301-377
| 5 |
Laurel |
MD |
LARLMDLRDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
2005-11-15 |
|
301-377
| 6 |
Laurel |
MD |
BTVLMD18GT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2010-02-04 |
|
301-377
| 7 |
Laurel |
MD |
LARLMDLRDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
2007-02-17 |
|
301-377
| 8 |
Laurel |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2008-09-08 |
|
301-377
| 9 |
Laurel |
MD |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2010-05-10 |
|
301-378
| A |
Frederick |
MD |
FRDRMDFRXTX |
318J COMCAST IP PHONE, LLC |
240 |
|
|
|
301-378
| 0 |
Frederick |
MD |
FRDRMDFRXTX |
318J COMCAST IP PHONE, LLC |
240 |
|
2007-04-06 |
|
301-378
| 1 |
Frederick |
MD |
FRDRMDFRPMD |
2589 US LEC OF MARYLAND, INC. |
240 |
|
2011-03-04 |
|
301-378
| 2 |
Frederick |
MD |
FRDRMDFRXTX |
318J COMCAST IP PHONE, LLC |
240 |
|
2009-08-13 |
|
301-378
| 3 |
Frederick |
MD |
FRDRMDFR9MD |
5562 METROPCS, INC. |
240 |
|
2011-07-08 |
|
301-378
| 4 |
Frederick |
MD |
FRDRMDFR9MD |
5562 METROPCS, INC. |
240 |
|
2011-07-08 |
|
301-378
| 5 |
Frederick |
MD |
FRDRMDFR9MD |
5562 METROPCS, INC. |
240 |
|
2022-11-07 |
|
301-378
| 6 |
Frederick |
MD |
HGTWMD53BMD |
145J TERRA NOVA TELECOM INC. |
240 |
|
2022-11-07 |
|
301-378
| 7 |
Frederick |
MD |
FRDRMDFRXAX |
7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD |
240 |
|
2012-09-10 |
|
301-378
| 8 |
Frederick |
MD |
FRDRMDFRXTX |
318J COMCAST IP PHONE, LLC |
240 |
|
2012-11-03 |
|
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Last updated: Tue, 16 Apr 2024 01:38:01 UTC
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