Local Calling Guide
Area code/prefix search
NPA: 443
[Rate centres in NPA 443]
[Dial plan for NPA 443]
<< 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 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 >>
NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
443-459
| 5 |
Elkridge |
MD |
BLTMMDSNDS5 |
4773 XO MARYLAND, LLC |
238 |
|
2005-12-12 |
|
443-459
| 6 |
Elkridge |
MD |
EKRGMD92MMD |
6664 SPRINT SPECTRUM L.P. |
238 |
|
2011-09-19 |
|
443-459
| 7 |
Elkridge |
MD |
EKRGMD92MMD |
6664 SPRINT SPECTRUM L.P. |
238 |
|
2011-11-07 |
|
443-459
| 8 |
Elkridge |
MD |
BLTMMDSN5MD |
4773 XO MARYLAND, LLC |
238 |
|
2005-12-12 |
|
443-459
| 9 |
Elkridge |
MD |
BLTMMDSN5MD |
4773 XO MARYLAND, LLC |
238 |
|
2005-12-12 |
|
443-460
| A |
Essex |
MD |
BLTMMDSN5MD |
4773 XO MARYLAND, LLC |
238 |
|
|
|
443-460
| 0 |
Essex |
MD |
BLTMMDSN5MD |
4773 XO MARYLAND, LLC |
238 |
|
|
|
443-460
| 1 |
Essex |
MD |
BLTMMDSN5MD |
4773 XO MARYLAND, LLC |
238 |
|
|
|
443-460
| 2 |
Essex |
MD |
BLTMMDSN5MD |
4773 XO MARYLAND, LLC |
238 |
|
|
|
443-460
| 3 |
Essex |
MD |
BLTMMDSN5MD |
4773 XO MARYLAND, LLC |
238 |
|
|
|
443-460
| 4 |
Essex |
MD |
BLTMMDSN5MD |
4773 XO MARYLAND, LLC |
238 |
|
|
|
443-460
| 5 |
Essex |
MD |
|
145J TERRA NOVA TELECOM INC. |
238 |
|
2021-01-27 |
|
443-460
| 6 |
Essex |
MD |
BLTMMDSN5MD |
4773 XO MARYLAND, LLC |
238 |
|
|
|
443-460
| 7 |
Essex |
MD |
BLTMMDSN5MD |
4773 XO MARYLAND, LLC |
238 |
|
|
|
443-460
| 8 |
Essex |
MD |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2008-03-31 |
|
443-460
| 9 |
Essex |
MD |
BLTMMDSN5MD |
4773 XO MARYLAND, LLC |
238 |
|
|
|
443-461
| A |
Parkville |
MD |
CLMAMDJTDS0 |
2589 US LEC OF MARYLAND, INC. |
238 |
|
|
|
443-461
| 0 |
Parkville |
MD |
CLMAMDJTDS0 |
2589 US LEC OF MARYLAND, INC. |
238 |
|
|
|
443-461
| 1 |
Parkville |
MD |
CLMAMDJTDS0 |
2589 US LEC OF MARYLAND, INC. |
238 |
|
|
|
443-461
| 2 |
Parkville |
MD |
CLMAMDJTDS0 |
2589 US LEC OF MARYLAND, INC. |
238 |
|
|
|
443-461
| 3 |
Parkville |
MD |
CLMAMDJTDS0 |
2589 US LEC OF MARYLAND, INC. |
238 |
|
|
|
443-461
| 4 |
Parkville |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2015-03-02 |
|
443-461
| 5 |
Parkville |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2015-03-02 |
|
443-461
| 6 |
Parkville |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2015-03-02 |
|
443-461
| 7 |
Parkville |
MD |
BLTMMDCHLMD |
082H LOCAL ACCESS LLC - MD |
238 |
|
2016-10-14 |
|
443-461
| 8 |
Parkville |
MD |
BLTMMDCHX7X |
073H TELNYX LLC |
238 |
|
2017-03-14 |
|
443-461
| 9 |
Parkville |
MD |
CLMAMDJTDS0 |
2589 US LEC OF MARYLAND, INC. |
238 |
|
|
|
443-462
| A |
Baltimore |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
|
|
443-462
| 0 |
Baltimore |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2009-01-15 |
|
443-462
| 1 |
Baltimore |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2009-04-02 |
|
443-462
| 2 |
Baltimore |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2009-04-02 |
|
443-462
| 3 |
Baltimore |
MD |
BLTMMDCHDS2 |
9212 VERIZON MARYLAND, INC. |
238 |
|
2009-04-20 |
|
443-462
| 4 |
Baltimore |
MD |
BLTMMDCHDS2 |
9212 VERIZON MARYLAND, INC. |
238 |
|
2009-04-20 |
|
443-462
| 5 |
Baltimore |
MD |
BLTMMDCHDS2 |
9212 VERIZON MARYLAND, INC. |
238 |
|
2009-04-20 |
|
443-462
| 6 |
Baltimore |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2009-07-03 |
|
443-462
| 7 |
Baltimore |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2009-07-03 |
|
443-462
| 8 |
Baltimore |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2009-10-02 |
|
443-462
| 9 |
Baltimore |
MD |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2009-10-02 |
|
443-463
| A |
Baltimore |
MD |
EKRGMD92MMD |
6664 SPRINT SPECTRUM L.P. |
238 |
|
|
|
443-464
| A |
Churchville |
MD |
PIVLMDPKQMD |
9170 BROADVIEW NETWORKS, INC. - MD |
238 |
|
|
|
443-464
| 0 |
Churchville |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2015-10-04 |
|
443-464
| 1 |
Churchville |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2016-03-25 |
|
443-464
| 2 |
Churchville |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2016-03-25 |
|
443-464
| 3 |
Churchville |
MD |
BLTMMDCHXVX |
321J HD CARRIER LLC |
238 |
|
2016-05-14 |
|
443-464
| 4 |
Churchville |
MD |
PIVLMDPKQMD |
9170 BROADVIEW NETWORKS, INC. - MD |
238 |
|
2010-05-15 |
|
443-464
| 5 |
Churchville |
MD |
PIVLMDPKQMD |
9170 BROADVIEW NETWORKS, INC. - MD |
238 |
|
2010-05-15 |
|
443-464
| 6 |
Churchville |
MD |
BLTMMDCHYMD |
530H WIDE VOICE, LLC - MD |
238 |
|
2016-05-14 |
|
443-464
| 7 |
Churchville |
MD |
BLTMMDCHYMD |
530H WIDE VOICE, LLC - MD |
238 |
|
2016-05-14 |
|
443-464
| 8 |
Churchville |
MD |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2013-05-05 |
|
443-464
| 9 |
Churchville |
MD |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2013-05-05 |
|
<< 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 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 >>
Last updated: Sun, 28 Feb 2021 19:06:05 UTC
Sponsored by: FiberConX Communications Ltd.
Like this site? We accept donations via PayPal.