Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

OCN: 9740 PACIFIC BELL

<< 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
510-624 4 Fremont-Newark: Oliver DA CA FRMTCA12DS0  722      
510-624 5 Fremont-Newark: Oliver DA CA FRMTCA12DS0  722      
510-624 6 Fremont-Newark: Oliver DA CA FRMTCA12DS0  722      
510-624 7 Fremont-Newark: Oliver DA CA FRMTCA12DS0  722      
510-624 8 Fremont-Newark: Oliver DA CA FRMTCA12DS0  722      
510-625 A Oakland: Main-Piedmont DA CA OKLDCA03DS4  722      
510-627 A Oakland: Main-Piedmont DA CA OKLDCA03DS2  722      
510-627 0 Oakland: Main-Piedmont DA CA OKLDCA03DS2  722      
510-627 1 Oakland: Main-Piedmont DA CA OKLDCA03DS2  722      
510-627 2 Oakland: Main-Piedmont DA CA OKLDCA03DS2  722      
510-627 3 Oakland: Main-Piedmont DA CA OKLDCA03DS2  722      
510-627 4 Oakland: Main-Piedmont DA CA OKLDCA03DS2  722      
510-627 5 Oakland: Main-Piedmont DA CA OKLDCA03DS2  722      
510-627 6 Oakland: Main-Piedmont DA CA OKLDCA03DS2  722      
510-627 7 Oakland: Main-Piedmont DA CA OKLDCA03DS2  722      
510-627 8 Oakland: Main-Piedmont DA CA OKLDCA03DS2  722      
510-628 A Oakland: Main-Piedmont DA CA OKLDCA03DS2  722      
510-628 0 Oakland: Main-Piedmont DA CA OKLDCA03DS2  722      
510-628 1 Oakland: Main-Piedmont DA CA OKLDCA03DS2  722      
510-628 2 Oakland: Main-Piedmont DA CA OKLDCA03DS2  722      
510-628 3 Oakland: Main-Piedmont DA CA OKLDCA03DS2  722      
510-628 4 Oakland: Main-Piedmont DA CA OKLDCA03DS2  722      
510-628 5 Oakland: Main-Piedmont DA CA OKLDCA03DS2  722      
510-628 7 Oakland: Main-Piedmont DA CA OKLDCA03DS2  722      
510-628 8 Oakland: Main-Piedmont DA CA OKLDCA03DS2  722      
510-628 9 Oakland: Main-Piedmont DA CA OKLDCA03DS2  722      
510-632 A Oakland: Trinidad DA CA OKLDCA12DS1  722      
510-633 A Oakland: Trinidad DA CA OKLDCA12DS1  722      
510-635 A Oakland: Trinidad DA CA OKLDCA12DS1  722      
510-636 A Oakland: Trinidad DA CA OKLDCA12DS1  722      
510-636 0 Oakland: Trinidad DA CA OKLDCA12DS1  722      
510-636 1 Oakland: Trinidad DA CA OKLDCA12DS1  722      
510-636 2 Oakland: Trinidad DA CA OKLDCA12DS1  722      
510-636 3 Oakland: Trinidad DA CA OKLDCA12DS1  722      
510-636 4 Oakland: Trinidad DA CA OKLDCA12DS1  722      
510-636 7 Oakland: Trinidad DA CA OKLDCA12DS1  722      
510-636 8 Oakland: Trinidad DA CA OKLDCA12DS1  722      
510-636 9 Oakland: Trinidad DA CA OKLDCA12DS1  722      
510-637 A Oakland: Main-Piedmont DA CA OKLDCA03DS2  722      
510-637 0 Oakland: Main-Piedmont DA CA OKLDCA03DS2  722      
510-637 1 Oakland: Main-Piedmont DA CA OKLDCA03DS2  722      
510-637 2 Oakland: Main-Piedmont DA CA OKLDCA03DS2  722      
510-637 3 Oakland: Main-Piedmont DA CA OKLDCA03DS2  722      
510-637 4 Oakland: Main-Piedmont DA CA OKLDCA03DS2  722      
510-637 5 Oakland: Main-Piedmont DA CA OKLDCA03DS2  722      
510-637 6 Oakland: Main-Piedmont DA CA OKLDCA03DS2  722      
510-638 A Oakland: Trinidad DA CA OKLDCA12DS1  722      
510-639 A Oakland: Trinidad DA CA OKLDCA12DS1  722      
510-642 A Oakland: Berkeley DA CA BKLYCA01DS0  722      
510-643 A Oakland: Berkeley DA CA BKLYCA01DS0  722      
510-644 A Oakland: Berkeley DA CA BKLYCA01DS1  722      
510-645 A Oakland: Main-Piedmont DA CA OKLDCA03DS4  722      
510-647 A Oakland: Berkeley DA CA BKLYCA01DS0  722      
510-647 0 Oakland: Berkeley DA CA BKLYCA01DS0  722      
510-647 1 Oakland: Berkeley DA CA BKLYCA01DS0  722      
510-647 2 Oakland: Berkeley DA CA BKLYCA01DS0  722      
510-647 3 Oakland: Berkeley DA CA BKLYCA01DS0  722      
510-647 4 Oakland: Berkeley DA CA BKLYCA01DS0  722      
510-647 5 Oakland: Berkeley DA CA BKLYCA01DS0  722      
510-649 A Oakland: Berkeley DA CA BKLYCA01DS0  722      
510-651 A Fremont-Newark: Oliver DA CA FRMTCA12DS0  722      
510-652 A Oakland: Main-Piedmont DA CA OKLDCA11DS0  722      
510-653 A Oakland: Main-Piedmont DA CA OKLDCA11DS0  722      
510-654 A Oakland: Main-Piedmont DA CA OKLDCA11DS0  722      
510-655 A Oakland: Main-Piedmont DA CA OKLDCA11DS0  722      
510-656 A Fremont-Newark: Oliver DA CA FRMTCA12DS0  722      
510-657 A Fremont-Newark: Oliver DA CA FRMTCA12DS0  722      
510-658 A Oakland: Main-Piedmont DA CA OKLDCA11DS0  722      
510-659 A Fremont-Newark: Oliver DA CA FRMTCA12DS0  722      
510-659 0 Fremont-Newark: Oliver DA CA FRMTCA12DS0  722      
510-659 1 Fremont-Newark: Oliver DA CA FRMTCA12DS0  722      
510-659 2 Fremont-Newark: Oliver DA CA FRMTCA12DS0  722      
510-659 4 Fremont-Newark: Oliver DA CA FRMTCA12DS0  722      
510-659 5 Fremont-Newark: Oliver DA CA FRMTCA12DS0  722      
510-659 6 Fremont-Newark: Oliver DA CA FRMTCA12DS0  722      
510-659 7 Fremont-Newark: Oliver DA CA FRMTCA12DS0  722      
510-659 8 Fremont-Newark: Oliver DA CA FRMTCA12DS0  722      
510-659 9 Fremont-Newark: Oliver DA CA FRMTCA12DS0  722      
510-661 A Fremont-Newark: Oliver DA CA FRMTCA12DS0  722      
510-661 0 Fremont-Newark: Oliver DA CA FRMTCA12DS0  722      
510-661 1 Fremont-Newark: Oliver DA CA FRMTCA12DS0  722      
510-661 4 Fremont-Newark: Oliver DA CA FRMTCA12DS0  722      
510-661 5 Fremont-Newark: Oliver DA CA FRMTCA12DS0  722      
510-661 6 Fremont-Newark: Oliver DA CA FRMTCA12DS0  722      
510-661 8 Fremont-Newark: Oliver DA CA FRMTCA12DS0  722      
510-661 9 Fremont-Newark: Oliver DA CA FRMTCA12DS0  722      
510-663 A Oakland: Main-Piedmont DA CA OKLDCA03DS4  722      
510-664 A Oakland: Berkeley DA CA BKLYCA01DS0  722      
510-665 A Oakland: Berkeley DA CA BKLYCA01DS0  722      
510-665 0 Oakland: Berkeley DA CA BKLYCA01DS0  722      
510-665 1 Oakland: Berkeley DA CA BKLYCA01DS0  722      
510-665 2 Oakland: Berkeley DA CA BKLYCA01DS0  722      
510-665 3 Oakland: Berkeley DA CA BKLYCA01DS0  722      
510-665 4 Oakland: Berkeley DA CA BKLYCA01DS0  722      
510-665 5 Oakland: Berkeley DA CA BKLYCA01DS0  722      
510-665 6 Oakland: Berkeley DA CA BKLYCA01DS0  722      
510-665 7 Oakland: Berkeley DA CA BKLYCA01DS0  722      
510-665 8 Oakland: Berkeley DA CA BKLYCA01DS0  722      
510-666 A Oakland: Berkeley DA CA BKLYCA01DS0  722      
510-666 0 Oakland: Berkeley DA CA BKLYCA01DS0  722      

<< 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 >>

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.