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 |
301-470
| 9 |
Washington Zone 14 |
MD |
LARLMDLRDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-471
| A |
Frederick |
MD |
FRDRMDFRXSX |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
240 |
|
|
|
301-472
| A |
Mechanicsville |
MD |
MCHVMDMCRS1 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-473
| A |
Frederick |
MD |
BRHGMDBHRS1 |
9212 VERIZON MARYLAND, INC. |
240 |
|
|
|
301-473
| 0 |
Frederick |
MD |
FRDRMDFRKMD |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
240 |
|
2007-12-13 |
|
301-473
| 1 |
Frederick |
MD |
FRDRMDFR9MD |
5562 METROPCS, INC. |
240 |
|
2007-12-13 |
|
301-473
| 2 |
Frederick |
MD |
MNRVMDMOXFX |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
240 |
|
2007-01-25 |
|
301-473
| 3 |
Frederick |
MD |
MNRVMDMOXFX |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
240 |
|
2007-01-25 |
|
301-473
| 4 |
Frederick |
MD |
BRHGMDBHRS1 |
9212 VERIZON MARYLAND, INC. |
240 |
|
|
|
301-473
| 5 |
Frederick |
MD |
BRHGMDBHRS1 |
9212 VERIZON MARYLAND, INC. |
240 |
|
|
|
301-473
| 6 |
Frederick |
MD |
FRDRMDFRKMD |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
240 |
|
2007-12-13 |
|
301-473
| 7 |
Frederick |
MD |
BRHGMDBHRS1 |
9212 VERIZON MARYLAND, INC. |
240 |
|
|
|
301-473
| 8 |
Frederick |
MD |
BRHGMDBHRS1 |
9212 VERIZON MARYLAND, INC. |
240 |
|
|
|
301-473
| 9 |
Frederick |
MD |
BRHGMDBHRS1 |
9212 VERIZON MARYLAND, INC. |
240 |
|
|
|
301-474
| A |
Washington Zone 13 |
MD |
CLPKMDBWDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-475
| A |
Leonardtown |
MD |
LNTWMDLTRS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-476
| A |
Ashton |
MD |
SLSPMDCVDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-476
| 0 |
Ashton |
MD |
MCLNVA23DS4 |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
2004-12-13 |
|
301-476
| 1 |
Ashton |
MD |
MCLNVA23DS4 |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
2005-01-20 |
|
301-476
| 2 |
Ashton |
MD |
SLSPMDCVDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-476
| 3 |
Ashton |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2016-02-06 |
|
301-476
| 4 |
Ashton |
MD |
MCLNVA23DS4 |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
2003-03-24 |
|
301-476
| 5 |
Ashton |
MD |
MCLNVA23DS4 |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
2005-01-20 |
|
301-476
| 6 |
Ashton |
MD |
MCLNVA23DS4 |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
2005-01-20 |
|
301-476
| 7 |
Ashton |
MD |
SLSPMDCVDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-476
| 8 |
Ashton |
MD |
SLSPMDCVDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-476
| 9 |
Ashton |
MD |
SLSPMDCVDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-477
| A |
Washington Zone 13 |
MD |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
|
|
301-477
| 1 |
Washington Zone 13 |
MD |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
|
|
301-477
| 2 |
Washington Zone 13 |
MD |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
|
|
301-477
| 3 |
Washington Zone 13 |
MD |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
|
|
301-477
| 4 |
Washington Zone 13 |
MD |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2017-02-01 |
|
301-477
| 5 |
Washington Zone 13 |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2018-10-23 |
|
301-477
| 6 |
Washington Zone 13 |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2018-10-23 |
|
301-477
| 7 |
Washington Zone 13 |
MD |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2015-09-04 |
|
301-477
| 8 |
Washington Zone 13 |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2018-01-14 |
|
301-477
| 9 |
Washington Zone 13 |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2018-01-14 |
|
301-478
| A |
Flintstone |
MD |
FLNTMDFSRS0 |
9212 VERIZON MARYLAND, INC. |
240 |
|
|
|
301-478
| 0 |
Flintstone |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
240 |
|
2004-03-26 |
|
301-478
| 1 |
Flintstone |
MD |
CMLDMDCH0MD |
228C IDT AMERICA, CORP. - MD |
240 |
|
2006-03-10 |
|
301-478
| 2 |
Flintstone |
MD |
FLNTMDFSRS0 |
9212 VERIZON MARYLAND, INC. |
240 |
|
|
|
301-478
| 3 |
Flintstone |
MD |
FLNTMDFSRS0 |
9212 VERIZON MARYLAND, INC. |
240 |
|
|
|
301-478
| 4 |
Flintstone |
MD |
HGTWMDHGDMD |
071F BANDWIDTH.COM CLEC, LLC - MD |
240 |
|
2012-08-24 |
|
301-478
| 5 |
Flintstone |
MD |
OLTWMDOTRS0 |
9212 VERIZON MARYLAND, INC. |
240 |
|
|
|
301-478
| 6 |
Flintstone |
MD |
HGTWMDHGDMD |
071F BANDWIDTH.COM CLEC, LLC - MD |
240 |
|
2015-03-01 |
|
301-478
| 7 |
Flintstone |
MD |
HGTWMDHGDMD |
071F BANDWIDTH.COM CLEC, LLC - MD |
240 |
|
2015-11-07 |
|
301-478
| 8 |
Flintstone |
MD |
CMLDMDCMEMD |
876D ONVOY, LLC - MD |
240 |
|
2016-09-12 |
|
301-478
| 9 |
Flintstone |
MD |
CMLDMDCMEMD |
876D ONVOY, LLC - MD |
240 |
|
2016-09-12 |
|
301-479
| A |
Washington Zone 13 |
MD |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
301-479
| 1 |
Washington Zone 13 |
MD |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
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Last updated: Tue, 16 Apr 2024 01:38:01 UTC
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