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 |
301-575
| 5 |
Laurel |
MD |
TYCRVA03AMD |
2589 US LEC OF MARYLAND, INC. |
236 |
|
2006-07-30 |
|
301-575
| 6 |
Laurel |
MD |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2006-08-07 |
|
301-575
| 7 |
Laurel |
MD |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2006-08-07 |
|
301-575
| 8 |
Laurel |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2004-03-26 |
|
301-575
| 9 |
Laurel |
MD |
TYCRVA03AMD |
2589 US LEC OF MARYLAND, INC. |
236 |
|
|
|
301-576
| A |
Washington Zone 3 |
MD |
CHCHMDBE6MD |
4716 PAETEC COMMUNICATIONS, INC. - MD |
236 |
|
|
|
301-577
| A |
Washington Zone 4 |
MD |
LNHMMDLNDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-578
| A |
Washington Zone 3 |
MD |
SLSPMDSSDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-578
| 0 |
Washington Zone 3 |
MD |
SLSPMDSSDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-578
| 1 |
Washington Zone 3 |
MD |
SLSPMDSSDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-578
| 2 |
Washington Zone 3 |
MD |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2020-06-13 |
|
301-578
| 3 |
Washington Zone 3 |
MD |
WASHDC126MD |
964H BARR TELL USA, INC. |
236 |
|
2018-05-08 |
|
301-578
| 4 |
Washington Zone 3 |
MD |
SLSPMDSSDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-578
| 5 |
Washington Zone 3 |
MD |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2020-06-13 |
|
301-578
| 6 |
Washington Zone 3 |
MD |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2018-07-19 |
|
301-578
| 7 |
Washington Zone 3 |
MD |
WASIDCRG7MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
236 |
|
2018-03-12 |
|
301-578
| 8 |
Washington Zone 3 |
MD |
SLSPMDSSDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-578
| 9 |
Washington Zone 3 |
MD |
SLSPMDSSDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-579
| A |
Brandywine |
MD |
BADNMDBNRS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-579
| 0 |
Brandywine |
MD |
WASHDC12DS6 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
236 |
|
2019-12-16 |
|
301-579
| 1 |
Brandywine |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2019-04-29 |
|
301-579
| 2 |
Brandywine |
MD |
BADNMDBNRS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-579
| 3 |
Brandywine |
MD |
MCLNVA23DS4 |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
2005-01-04 |
|
301-579
| 4 |
Brandywine |
MD |
MCLNVA23DS4 |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
2003-03-24 |
|
301-579
| 5 |
Brandywine |
MD |
MCLNVA23DS4 |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
2004-12-13 |
|
301-579
| 6 |
Brandywine |
MD |
BADNMDBNRS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-579
| 7 |
Brandywine |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2016-03-03 |
|
301-579
| 8 |
Brandywine |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2016-03-03 |
|
301-579
| 9 |
Brandywine |
MD |
BADNMDBNRS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-580
| A |
Washington Zone 3 |
MD |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
|
|
301-581
| A |
Washington Zone 2 |
MD |
BTHSMDWWDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-582
| A |
Hagerstown |
MD |
WLPTMDWPRS2 |
9212 VERIZON MARYLAND, INC. |
240 |
|
|
|
301-582
| 0 |
Hagerstown |
MD |
WLPTMDWPRS2 |
9212 VERIZON MARYLAND, INC. |
240 |
|
|
|
301-582
| 1 |
Hagerstown |
MD |
WLPTMDWPRS2 |
9212 VERIZON MARYLAND, INC. |
240 |
|
|
|
301-582
| 2 |
Hagerstown |
MD |
WLPTMDWPRS2 |
9212 VERIZON MARYLAND, INC. |
240 |
|
|
|
301-582
| 3 |
Hagerstown |
MD |
WLPTMDWPRS2 |
9212 VERIZON MARYLAND, INC. |
240 |
|
|
|
301-582
| 4 |
Hagerstown |
MD |
WLPTMDWPRS2 |
9212 VERIZON MARYLAND, INC. |
240 |
|
|
|
301-582
| 5 |
Hagerstown |
MD |
WLPTMDWPRS2 |
9212 VERIZON MARYLAND, INC. |
240 |
|
|
|
301-582
| 6 |
Hagerstown |
MD |
WLPTMDWPRS2 |
9212 VERIZON MARYLAND, INC. |
240 |
|
|
|
301-582
| 7 |
Hagerstown |
MD |
WLPTMDWPRS2 |
9212 VERIZON MARYLAND, INC. |
240 |
|
|
|
301-582
| 8 |
Hagerstown |
MD |
MNRVMDMOXFX |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
240 |
|
2008-06-16 |
|
301-582
| 9 |
Hagerstown |
MD |
WLPTMDWPRS2 |
9212 VERIZON MARYLAND, INC. |
240 |
|
|
|
301-583
| A |
Washington Zone 4 |
MD |
LDVRMDLODS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-583
| 0 |
Washington Zone 4 |
MD |
LDVRMDLODS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-583
| 1 |
Washington Zone 4 |
MD |
LDVRMDLODS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-583
| 2 |
Washington Zone 4 |
MD |
LDVRMDLODS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-583
| 3 |
Washington Zone 4 |
MD |
LDVRMDLODS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-583
| 4 |
Washington Zone 4 |
MD |
LDVRMDLODS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-583
| 5 |
Washington Zone 4 |
MD |
LDVRMDLODS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-583
| 6 |
Washington Zone 4 |
MD |
BTVLMD127MD |
5562 METROPCS, INC. |
236 |
|
2013-06-03 |
|
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Last updated: Fri, 22 Mar 2024 03:02:44 UTC
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