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 |
301-583
| 7 |
Washington Zone 4 |
MD |
LDVRMDLODS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-583
| 8 |
Washington Zone 4 |
MD |
LDVRMDLODS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-583
| 9 |
Washington Zone 4 |
MD |
LDVRMDLODS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-584
| A |
Washington Zone 12 |
MD |
VINNVACB2MD |
8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) |
236 |
|
|
|
301-585
| A |
Washington Zone 3 |
MD |
SLSPMDSSDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-586
| A |
Washington Zone 3 |
MD |
BTVLMDBVDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-586
| 0 |
Washington Zone 3 |
MD |
BTVLMDBVDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-586
| 1 |
Washington Zone 3 |
MD |
BTVLMDBVDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-586
| 2 |
Washington Zone 3 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2007-11-21 |
|
301-586
| 3 |
Washington Zone 3 |
MD |
BTVLMDBVDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-586
| 4 |
Washington Zone 3 |
MD |
BTVLMDBVDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-586
| 5 |
Washington Zone 3 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2007-11-21 |
|
301-586
| 6 |
Washington Zone 3 |
MD |
BTVLMDBVDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-586
| 7 |
Washington Zone 3 |
MD |
BTVLMD12CMA |
5562 METROPCS, INC. |
236 |
|
2007-11-21 |
|
301-586
| 8 |
Washington Zone 3 |
MD |
BTVLMDBVDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-586
| 9 |
Washington Zone 3 |
MD |
BTVLMDBVDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-587
| A |
Washington Zone 3 |
MD |
SLSPMDSSDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-588
| A |
Washington Zone 3 |
MD |
SLSPMDSSDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-589
| A |
Washington Zone 3 |
MD |
SLSPMDSSDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-590
| A |
Washington Zone 10 |
MD |
GTBGMDGBPS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-590
| 0 |
Washington Zone 10 |
MD |
GTBGMDGBPS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-590
| 1 |
Washington Zone 10 |
MD |
GTBGMDGBPS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-590
| 2 |
Washington Zone 10 |
MD |
GTBGMDGBPS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-590
| 3 |
Washington Zone 10 |
MD |
GTBGMDGBPS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-590
| 4 |
Washington Zone 10 |
MD |
GTBGMDGBPS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-590
| 5 |
Washington Zone 10 |
MD |
BTVLMD12CM9 |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2014-09-16 |
|
301-590
| 6 |
Washington Zone 10 |
MD |
GTBGMDGBPS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-590
| 7 |
Washington Zone 10 |
MD |
GTBGMDGBPS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-590
| 8 |
Washington Zone 10 |
MD |
GTBGMDGBPS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-590
| 9 |
Washington Zone 10 |
MD |
GTBGMDGBPS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-591
| A |
Gaithersburg |
MD |
CHCHMDBE6MD |
4716 PAETEC COMMUNICATIONS, INC. - MD |
236 |
|
|
|
301-591
| 0 |
Gaithersburg |
MD |
CHCHMDBE6MD |
4716 PAETEC COMMUNICATIONS, INC. - MD |
236 |
|
|
|
301-591
| 1 |
Gaithersburg |
MD |
CHCHMDBE6MD |
4716 PAETEC COMMUNICATIONS, INC. - MD |
236 |
|
|
|
301-591
| 2 |
Gaithersburg |
MD |
CHCHMDBE6MD |
4716 PAETEC COMMUNICATIONS, INC. - MD |
236 |
|
|
|
301-591
| 3 |
Gaithersburg |
MD |
CHCHMDBE6MD |
4716 PAETEC COMMUNICATIONS, INC. - MD |
236 |
|
|
|
301-591
| 4 |
Gaithersburg |
MD |
CHCHMDBE6MD |
4716 PAETEC COMMUNICATIONS, INC. - MD |
236 |
|
|
|
301-591
| 5 |
Gaithersburg |
MD |
CHCHMDBE6MD |
4716 PAETEC COMMUNICATIONS, INC. - MD |
236 |
|
|
|
301-591
| 6 |
Gaithersburg |
MD |
SLSPMD91DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
236 |
|
2020-04-19 |
|
301-591
| 7 |
Gaithersburg |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2021-02-18 |
|
301-591
| 8 |
Gaithersburg |
MD |
CHCHMDBE6MD |
4716 PAETEC COMMUNICATIONS, INC. - MD |
236 |
|
|
|
301-591
| 9 |
Gaithersburg |
MD |
CHCHMDBE6MD |
4716 PAETEC COMMUNICATIONS, INC. - MD |
236 |
|
|
|
301-592
| A |
Washington Zone 3 |
MD |
SLSPMDNWDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-592
| 0 |
Washington Zone 3 |
MD |
SLSPMDNWDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-592
| 1 |
Washington Zone 3 |
MD |
SLSPMDNWDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-592
| 2 |
Washington Zone 3 |
MD |
SLSPMDNWDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-592
| 3 |
Washington Zone 3 |
MD |
SLSPMDNWDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-592
| 4 |
Washington Zone 3 |
MD |
SLSPMDNWDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-592
| 5 |
Washington Zone 3 |
MD |
SLSPMDNWDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-592
| 6 |
Washington Zone 3 |
MD |
SLSPMDNWDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-592
| 7 |
Washington Zone 3 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2003-07-29 |
|
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Last updated: Tue, 16 Apr 2024 01:38:01 UTC
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