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.

Region: MA

<< 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
617-744 6 Watertown MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2006-12-03   
617-744 7 Watertown MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2016-02-29   
617-744 8 Watertown MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2006-12-03   
617-744 9 Watertown MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2008-12-06   
617-745 A Quincy MA QNCYMAHADS1  9102 VERIZON NEW ENGLAND INC. 128      
617-746 A Brighton MA BITNMAWIRP0  9102 VERIZON NEW ENGLAND INC. 128      
617-747 A Boston MA BSTNMACODS0  7135 TC SYSTEMS, INC. 128      
617-748 A Boston MA BSTNMAFRDS2  9102 VERIZON NEW ENGLAND INC. 128      
617-749 A Roxbury MA   892D ONVOY, LLC - MA 128   2025-04-14   
617-749 0 Roxbury MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-04-06   
617-749 1 Roxbury MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2021-04-12   
617-749 2 Roxbury MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2014-10-08   
617-749 4 Roxbury MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2023-07-08   
617-749 5 Roxbury MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2008-07-30   
617-749 6 Roxbury MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2008-07-30   
617-749 7 Roxbury MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2008-03-21   
617-749 8 Roxbury MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2008-03-21   
617-749 9 Roxbury MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-04-06   
617-750 A Quincy MA CMBSMA01AMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
617-751 A Brookline MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-751 0 Brookline MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2020-10-07   
617-751 1 Brookline MA SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2020-08-24   
617-751 2 Brookline MA   829J PAETEC ITEL, LLC 128   2009-10-08   
617-751 3 Brookline MA STHMMAGBGT0  7619 RCN TELECOM SERVICES, INC. - MA 128   2013-08-24   
617-751 4 Brookline MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-751 5 Brookline MA   829J PAETEC ITEL, LLC 128   2010-11-01   
617-751 6 Brookline MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-751 7 Brookline MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-751 8 Brookline MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2013-10-11   
617-751 9 Brookline MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2013-10-11   
617-752 A South Boston MA CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-752 0 South Boston MA BSTPMALLOMD  073H TELNYX LLC 128   2017-04-26   
617-752 1 South Boston MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2008-12-06   
617-752 2 South Boston MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2010-02-18   
617-752 3 South Boston MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2011-03-10   
617-752 4 South Boston MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2007-10-05   
617-752 5 South Boston MA CHTWMABF2MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 128   2017-04-14   
617-752 6 South Boston MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2017-05-10   
617-752 7 South Boston MA SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2018-10-29   
617-752 8 South Boston MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2019-05-11   
617-752 9 South Boston MA CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-753 A Boston MA BSTNMAHADS9  9102 VERIZON NEW ENGLAND INC. 128      
617-754 A Brookline MA BKLIMAMADS1  9102 VERIZON NEW ENGLAND INC. 128      
617-755 A Boston MA CMBSMA01AMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
617-756 A Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128      
617-756 0 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2007-09-30   
617-756 1 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2007-05-14   
617-756 2 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2007-05-14   
617-756 3 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2007-05-14   
617-756 4 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2007-05-14   
617-756 5 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2007-05-14   
617-756 6 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2007-05-14   
617-756 7 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2007-05-14   
617-756 8 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2007-05-14   
617-756 9 Boston MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2007-05-14   
617-757 A Boston MA BSTNMAFRDS2  9102 VERIZON NEW ENGLAND INC. 128      
617-758 A Cambridge MA   829J PAETEC ITEL, LLC 128      
617-758 0 Cambridge MA   829J PAETEC ITEL, LLC 128      
617-758 1 Cambridge MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2010-03-15   
617-758 2 Cambridge MA   829J PAETEC ITEL, LLC 128      
617-758 3 Cambridge MA   829J PAETEC ITEL, LLC 128      
617-758 4 Cambridge MA   829J PAETEC ITEL, LLC 128      
617-758 5 Cambridge MA   829J PAETEC ITEL, LLC 128      
617-758 6 Cambridge MA   829J PAETEC ITEL, LLC 128      
617-758 7 Cambridge MA CMBRMAMQDS3  316E YMAX COMMUNICATIONS CORP. - MA 128   2009-02-17   
617-758 8 Cambridge MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2011-03-24   
617-758 9 Cambridge MA CMBSMA01AMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2010-06-14   
617-759 A Dedham MA CMBSMA01AMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
617-760 A Boston MA BSTNMAHADS9  9102 VERIZON NEW ENGLAND INC. 128      
617-761 A Cambridge MA CMBRMABEDS1  9102 VERIZON NEW ENGLAND INC. 128      
617-761 0 Cambridge MA CMBRMABEDS1  9102 VERIZON NEW ENGLAND INC. 128      
617-761 1 Cambridge MA CMBRMABEDS1  9102 VERIZON NEW ENGLAND INC. 128      
617-761 2 Cambridge MA CMBRMABEDS1  9102 VERIZON NEW ENGLAND INC. 128      
617-761 3 Cambridge MA CMBRMABEDS1  9102 VERIZON NEW ENGLAND INC. 128      
617-761 4 Cambridge MA CMBRMABEDS1  9102 VERIZON NEW ENGLAND INC. 128      
617-761 5 Cambridge MA CMBRMABEDS1  9102 VERIZON NEW ENGLAND INC. 128      
617-761 6 Cambridge MA CMBRMABEDS1  9102 VERIZON NEW ENGLAND INC. 128      
617-761 7 Cambridge MA BSTPMALL5MD  508J CENTURYLINK COMMUNICATIONS, LLC 128   2013-09-30   
617-761 8 Cambridge MA CMBRMABEDS1  9102 VERIZON NEW ENGLAND INC. 128      
617-761 9 Cambridge MA CMBRMABEDS1  9102 VERIZON NEW ENGLAND INC. 128      
617-762 A Newton MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-762 0 Newton MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-762 1 Newton MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-02-28   
617-762 2 Newton MA   829J PAETEC ITEL, LLC 128   2013-12-05   
617-762 3 Newton MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-762 4 Newton MA SOVLMAAB6MD  939H COMMIO, LLC 128   2021-10-11   
617-762 5 Newton MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-762 6 Newton MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2014-07-01   
617-762 7 Newton MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2014-08-01   
617-762 8 Newton MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2014-09-01   
617-762 9 Newton MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2021-09-03   
617-763 A Boston MA CMBSMA01AMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
617-764 A Somerville MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128      
617-764 0 Somerville MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128      
617-764 1 Somerville MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128      
617-764 2 Somerville MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128      
617-764 3 Somerville MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2010-09-25   
617-764 4 Somerville MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2012-11-24   
617-764 5 Somerville MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128      
617-764 6 Somerville MA CMBSMA01AMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2018-07-23   

<< 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 >>

Last updated: Sun, 17 May 2026 03:26:51 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.