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 |
301-388
| 0 |
Washington Zone 12 |
MD |
SLSPMDCVDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-388
| 1 |
Washington Zone 12 |
MD |
SLSPMDCVDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-388
| 2 |
Washington Zone 12 |
MD |
SLSPMDCVDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-388
| 3 |
Washington Zone 12 |
MD |
SLSPMDCVDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-388
| 4 |
Washington Zone 12 |
MD |
SLSPMDCVDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-388
| 5 |
Washington Zone 12 |
MD |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2014-06-06 |
|
301-388
| 6 |
Washington Zone 12 |
MD |
BTVLMD127MD |
5562 METROPCS, INC. |
236 |
|
2013-07-25 |
|
301-388
| 7 |
Washington Zone 12 |
MD |
WASHDCMTX7X |
2697 CTC COMMUNICATIONS CORP. - MD |
236 |
|
2008-04-11 |
|
301-388
| 8 |
Washington Zone 12 |
MD |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2011-05-20 |
|
301-388
| 9 |
Washington Zone 12 |
MD |
SLSPMDCVDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-389
| A |
Washington Zone 13 |
MD |
LARLMDCC5MD |
7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD |
236 |
|
|
|
301-389
| 0 |
Washington Zone 13 |
MD |
LARLMDCC5MD |
7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD |
236 |
|
|
|
301-389
| 1 |
Washington Zone 13 |
MD |
LARLMDCC5MD |
7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD |
236 |
|
|
|
301-389
| 2 |
Washington Zone 13 |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2022-08-21 |
|
301-389
| 3 |
Washington Zone 13 |
MD |
WASHDCMTX7X |
2697 CTC COMMUNICATIONS CORP. - MD |
236 |
|
2006-06-23 |
|
301-389
| 4 |
Washington Zone 13 |
MD |
LARLMDCC5MD |
7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD |
236 |
|
|
|
301-389
| 5 |
Washington Zone 13 |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2016-04-06 |
|
301-389
| 6 |
Washington Zone 13 |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2016-04-06 |
|
301-389
| 7 |
Washington Zone 13 |
MD |
LARLMDCC5MD |
7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD |
236 |
|
|
|
301-389
| 8 |
Washington Zone 13 |
MD |
LARLMDCC5MD |
7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD |
236 |
|
|
|
301-389
| 9 |
Washington Zone 13 |
MD |
LARLMDCC5MD |
7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD |
236 |
|
|
|
301-390
| A |
Washington Zone 14 |
MD |
UPMRMDCCDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-391
| A |
Damascus |
MD |
DMSCMDDEDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-391
| 0 |
Damascus |
MD |
|
515J IP HORIZON LLC |
236 |
|
2016-05-31 |
|
301-391
| 1 |
Damascus |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2018-10-22 |
|
301-391
| 2 |
Damascus |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2018-10-22 |
|
301-391
| 3 |
Damascus |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2018-10-22 |
|
301-391
| 4 |
Damascus |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2018-10-22 |
|
301-391
| 5 |
Damascus |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2018-10-22 |
|
301-391
| 6 |
Damascus |
MD |
DMSCMDDEDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-391
| 7 |
Damascus |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2018-10-22 |
|
301-391
| 8 |
Damascus |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2018-10-22 |
|
301-391
| 9 |
Damascus |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2018-10-22 |
|
301-392
| A |
La Plata |
MD |
LPLTMDLADS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-392
| 0 |
La Plata |
MD |
LPLTMDLADS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-392
| 1 |
La Plata |
MD |
LPLTMDLADS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-392
| 2 |
La Plata |
MD |
CHCHMDBE6MD |
4716 PAETEC COMMUNICATIONS, INC. - MD |
236 |
|
2006-12-01 |
|
301-392
| 3 |
La Plata |
MD |
LPLTMDLADS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-392
| 4 |
La Plata |
MD |
HRNDVA13AMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
236 |
|
2006-12-01 |
|
301-392
| 5 |
La Plata |
MD |
LPLTMDLADS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-392
| 6 |
La Plata |
MD |
LPLTMDLADS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-392
| 7 |
La Plata |
MD |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2011-06-02 |
|
301-392
| 8 |
La Plata |
MD |
HRNDVACKAMD |
2217 ATX TELECOMMUNICATIONS SERVICES, LTD. - MD |
236 |
|
2004-03-27 |
|
301-392
| 9 |
La Plata |
MD |
LPLTMDLADS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-393
| A |
Hagerstown |
MD |
HGTWMDHGDS0 |
9212 VERIZON MARYLAND, INC. |
240 |
|
|
|
301-393
| 0 |
Hagerstown |
MD |
HGTWMDHGDS0 |
9212 VERIZON MARYLAND, INC. |
240 |
|
|
|
301-393
| 1 |
Hagerstown |
MD |
FRDRMDFRAMD |
2589 US LEC OF MARYLAND, INC. |
240 |
|
2015-05-08 |
|
301-393
| 2 |
Hagerstown |
MD |
HGTWMDHGDS0 |
9212 VERIZON MARYLAND, INC. |
240 |
|
|
|
301-393
| 3 |
Hagerstown |
MD |
HGTWMDHGDS0 |
9212 VERIZON MARYLAND, INC. |
240 |
|
|
|
301-393
| 4 |
Hagerstown |
MD |
HGTWMDHGDS0 |
9212 VERIZON MARYLAND, INC. |
240 |
|
|
|
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Last updated: Tue, 16 Apr 2024 01:38:01 UTC
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