Local calling guide: NPA-NXX search

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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 >>

NPA-NXX	BLOCK	Rate Centre	Region	Switch	OCN	LATA	Eff date
443-744	2	Reisterstown	MD		5562 METROPCS, INC.	238
443-744	3	Reisterstown	MD		5562 METROPCS, INC.	238
443-744	4	Reisterstown	MD		5562 METROPCS, INC.	238
443-744	5	Reisterstown	MD		6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	238
443-744	6	Reisterstown	MD		5562 METROPCS, INC.	238
443-744	7	Reisterstown	MD		6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	238
443-744	8	Reisterstown	MD		318J COMCAST IP PHONE, LLC	238	2017-01-20
443-744	9	Reisterstown	MD		5562 METROPCS, INC.	238
443-745	A	Columbia	MD	BLTOMDKHBMD	6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	238
443-746	A	Easton	MD	SLBRMDSBXFX	6119 LEVEL 3 COMMUNICATIONS, LLC - MD	242
443-746	0	Easton	MD		6119 LEVEL 3 COMMUNICATIONS, LLC - MD	242	2010-02-20
443-746	1	Easton	MD		5562 METROPCS, INC.	242	2021-09-21
443-746	2	Easton	MD		6119 LEVEL 3 COMMUNICATIONS, LLC - MD	242	2014-10-23
443-746	3	Easton	MD		6119 LEVEL 3 COMMUNICATIONS, LLC - MD	242
443-746	4	Easton	MD		7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD	242	2015-09-01
443-746	5	Easton	MD		2593 CORE COMMUNICATIONS, INC.- MD	242	2019-04-12
443-746	6	Easton	MD		2593 CORE COMMUNICATIONS, INC.- MD	242	2019-04-12
443-746	7	Easton	MD		876D ONVOY, LLC - MD	242	2020-04-30
443-746	8	Easton	MD		876D ONVOY, LLC - MD	242	2020-04-30
443-746	9	Easton	MD		073H TELNYX LLC	242	2022-08-01
443-747	A	Port Deposit	MD	BLTMMD91GT0	2593 CORE COMMUNICATIONS, INC.- MD	238
443-747	0	Port Deposit	MD		2593 CORE COMMUNICATIONS, INC.- MD	238	2004-04-02
443-747	1	Port Deposit	MD		071F BANDWIDTH.COM CLEC, LLC - MD	238	2011-06-18
443-747	2	Port Deposit	MD		829J PAETEC ITEL, LLC	238	2004-02-05
443-747	3	Port Deposit	MD		2593 CORE COMMUNICATIONS, INC.- MD	238
443-747	4	Port Deposit	MD		228C IDT AMERICA, CORP. - MD	238	2012-01-08
443-747	5	Port Deposit	MD		8697 BALTIMORE-WASHINGTON TELEPHONE (BWT)	238	2006-05-04
443-747	6	Port Deposit	MD		321J HD CARRIER LLC	238	2016-05-14
443-747	7	Port Deposit	MD		876D ONVOY, LLC - MD	238	2012-10-08
443-747	8	Port Deposit	MD		568G PEERLESS NETWORK OF MARYLAND, LLC	238	2013-05-04
443-747	9	Port Deposit	MD		568G PEERLESS NETWORK OF MARYLAND, LLC	238	2013-05-04
443-748	A	Millersville	MD		829J PAETEC ITEL, LLC	238	2025-04-01
443-748	0	Millersville	MD		829J PAETEC ITEL, LLC	238
443-748	1	Millersville	MD		876D ONVOY, LLC - MD	238	2021-04-02
443-748	2	Millersville	MD		568G PEERLESS NETWORK OF MARYLAND, LLC	238	2013-05-04
443-748	3	Millersville	MD		829J PAETEC ITEL, LLC	238
443-748	4	Millersville	MD		568G PEERLESS NETWORK OF MARYLAND, LLC	238	2013-05-04
443-748	5	Millersville	MD		624H ONVOY SPECTRUM, LLC	238	2022-02-05
443-748	6	Millersville	MD		2593 CORE COMMUNICATIONS, INC.- MD	238	2018-06-16
443-748	7	Millersville	MD		2593 CORE COMMUNICATIONS, INC.- MD	238	2018-06-16
443-748	9	Millersville	MD		876D ONVOY, LLC - MD	238	2022-11-23
443-749	A	Glen Burnie	MD		829J PAETEC ITEL, LLC	238	2025-04-01
443-749	0	Glen Burnie	MD		829J PAETEC ITEL, LLC	238
443-749	1	Glen Burnie	MD		829J PAETEC ITEL, LLC	238
443-749	2	Glen Burnie	MD		829J PAETEC ITEL, LLC	238
443-749	3	Glen Burnie	MD		197D VONAGE AMERICA LLC	238	2020-05-13
443-749	4	Glen Burnie	MD		829J PAETEC ITEL, LLC	238
443-749	5	Glen Burnie	MD		829J PAETEC ITEL, LLC	238
443-749	6	Glen Burnie	MD		197D VONAGE AMERICA LLC	238	2020-05-13
443-749	7	Glen Burnie	MD		829J PAETEC ITEL, LLC	238

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Local Calling Guide

Area code/prefix search