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 |
301-563
| 7 |
Washington Zone 3 |
MD |
SLSPMDSSDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-563
| 8 |
Washington Zone 3 |
MD |
SLSPMDSSDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-563
| 9 |
Washington Zone 3 |
MD |
MCLNVA23DS4 |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
2007-12-04 |
|
301-564
| A |
Washington Zone 2 |
MD |
BTHSMDWWDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-565
| A |
Washington Zone 3 |
MD |
SLSPMDSSDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-566
| A |
Washington Zone 13 |
MD |
MRKKMDMKDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-567
| A |
Washington Zone 6 |
MD |
OXHLMDOHDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-568
| A |
Washington Zone 5 |
MD |
STLDMDSLDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-569
| A |
Gaithersburg |
MD |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
|
|
301-569
| 0 |
Gaithersburg |
MD |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2013-09-17 |
|
301-569
| 1 |
Gaithersburg |
MD |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2014-05-01 |
|
301-569
| 2 |
Gaithersburg |
MD |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2011-05-07 |
|
301-569
| 3 |
Gaithersburg |
MD |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2014-06-01 |
|
301-569
| 4 |
Gaithersburg |
MD |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2013-12-10 |
|
301-569
| 5 |
Gaithersburg |
MD |
WASIDCRG7MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
236 |
|
2013-10-01 |
|
301-569
| 6 |
Gaithersburg |
MD |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2011-09-08 |
|
301-569
| 7 |
Gaithersburg |
MD |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2012-01-14 |
|
301-569
| 8 |
Gaithersburg |
MD |
WASLDCRGDS0 |
281E YMAX COMMUNICATIONS CORP. - MD |
236 |
|
2011-09-02 |
|
301-569
| 9 |
Gaithersburg |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2012-04-05 |
|
301-570
| A |
Ashton |
MD |
OLNYMDOKDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-571
| A |
Washington Zone 2 |
MD |
BTHSMDWWDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-572
| A |
Washington Zone 3 |
MD |
BTVLMDBVDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-573
| A |
Hagerstown |
MD |
FRDRMDFRKMD |
4098 SPRINT SPECTRUM, LP - MD |
240 |
|
|
|
301-573
| 0 |
Hagerstown |
MD |
FRDRMDFRKMD |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
240 |
|
|
|
301-573
| 1 |
Hagerstown |
MD |
FRDRMDFRKMD |
5562 METROPCS, INC. |
240 |
|
|
|
301-573
| 2 |
Hagerstown |
MD |
FRDRMDFRKMD |
5562 METROPCS, INC. |
240 |
|
|
|
301-573
| 3 |
Hagerstown |
MD |
FRDRMDFRKMD |
5562 METROPCS, INC. |
240 |
|
|
|
301-573
| 4 |
Hagerstown |
MD |
FRDRMDFRKMD |
5562 METROPCS, INC. |
240 |
|
|
|
301-573
| 5 |
Hagerstown |
MD |
FRDRMDFRKMD |
5562 METROPCS, INC. |
240 |
|
|
|
301-573
| 6 |
Hagerstown |
MD |
FRDRMDFRKMD |
5562 METROPCS, INC. |
240 |
|
|
|
301-573
| 7 |
Hagerstown |
MD |
FRDRMDFRKMD |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
240 |
|
|
|
301-573
| 8 |
Hagerstown |
MD |
FRDRMDFRKMD |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
240 |
|
|
|
301-573
| 9 |
Hagerstown |
MD |
FRDRMDFRKMD |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
240 |
|
|
|
301-574
| A |
Washington Zone 15 |
MD |
MRBOMDMBDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-574
| 0 |
Washington Zone 15 |
MD |
MRBOMDMBDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-574
| 1 |
Washington Zone 15 |
MD |
MRBOMDMBDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-574
| 2 |
Washington Zone 15 |
MD |
MRBOMDMBDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-574
| 3 |
Washington Zone 15 |
MD |
MRBOMDMBDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-574
| 4 |
Washington Zone 15 |
MD |
MRBOMDMBDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-574
| 5 |
Washington Zone 15 |
MD |
MRBOMDMBDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-574
| 6 |
Washington Zone 15 |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2019-04-29 |
|
301-574
| 7 |
Washington Zone 15 |
MD |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2018-11-29 |
|
301-574
| 8 |
Washington Zone 15 |
MD |
MRBOMDMBDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-574
| 9 |
Washington Zone 15 |
MD |
MRBOMDMBDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-575
| A |
Laurel |
MD |
TYCRVA03AMD |
2589 US LEC OF MARYLAND, INC. |
236 |
|
|
|
301-575
| 0 |
Laurel |
MD |
TYCRVA03AMD |
2589 US LEC OF MARYLAND, INC. |
236 |
|
|
|
301-575
| 1 |
Laurel |
MD |
TYCRVA03AMD |
2589 US LEC OF MARYLAND, INC. |
236 |
|
|
|
301-575
| 2 |
Laurel |
MD |
TYCRVA03AMD |
2589 US LEC OF MARYLAND, INC. |
236 |
|
|
|
301-575
| 3 |
Laurel |
MD |
TYCRVA03AMD |
2589 US LEC OF MARYLAND, INC. |
236 |
|
|
|
301-575
| 4 |
Laurel |
MD |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2006-01-02 |
|
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Last updated: Fri, 22 Mar 2024 03:02:44 UTC
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