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: MI

<< 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
989-439 6 Bay City MI SGNWMIFAXOY  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 344   2013-07-01   
989-439 7 Bay City MI   046L CLEAR RATE COMMUNICATIONS, LLC 344   2012-06-23   
989-439 8 Bay City MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344   2016-01-15   
989-439 9 Bay City MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344   2013-03-15   
989-440 A Clare MI SGNWMIFAXDX  9748 AMERICAN MESSAGING SERVICES, LLC 344      
989-441 A Weidman MI   792K CHARTER IP ENABLED SERVICES, LLC 344      
989-441 0 Weidman MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344   2017-05-26   
989-441 1 Weidman MI   792K CHARTER IP ENABLED SERVICES, LLC 344   2014-11-02   
989-441 2 Weidman MI SGNWMIFAXJX  991E BANDWIDTH.COM CLEC, LLC - MI 344   2019-01-06   
989-441 3 Weidman MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344   2021-03-27   
989-441 4 Weidman MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344   2021-03-27   
989-441 5 Weidman MI ALMAMIXGOMD  624H ONVOY SPECTRUM, LLC 344   2023-05-30   
989-441 7 Weidman MI SGNWMIFAXCY  508J CENTURYLINK COMMUNICATIONS, LLC 344   2015-05-08   
989-442 A Coleman MI SGNWMIFAXEX  829J PAETEC ITEL, LLC 344      
989-442 0 Coleman MI SGNWMIFAXEX  829J PAETEC ITEL, LLC 344   2005-05-16   
989-442 1 Coleman MI   817J TELNET WORLDWIDE, INC. 344   2005-09-04   
989-442 2 Coleman MI SGNWMIFAZMD  2550 123.NET, LLC 344   2005-09-04   
989-442 3 Coleman MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344   2023-03-13   
989-442 4 Coleman MI   792K CHARTER IP ENABLED SERVICES, LLC 344   2007-07-20   
989-442 5 Coleman MI SGNWMIFAXEX  829J PAETEC ITEL, LLC 344   2010-06-07   
989-442 6 Coleman MI SGNWMIFAXJX  991E BANDWIDTH.COM CLEC, LLC - MI 344   2011-03-12   
989-442 7 Coleman MI SGNWMIFAXJX  991E BANDWIDTH.COM CLEC, LLC - MI 344   2011-04-14   
989-442 8 Coleman MI SGNWMIATX0X  516C AT&T CORP. 344   2011-09-30   
989-442 9 Coleman MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344   2023-08-26   
989-443 A Saginaw MI SGNWMIFAXFY  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 344      
989-443 0 Saginaw MI SGNWMIFAXFY  5562 METROPCS, INC. 344   2014-03-10   
989-443 1 Saginaw MI SGNWMIFAXFY  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 344   2005-10-08   
989-443 2 Saginaw MI SGNWMIFAXFY  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 344   2005-10-23   
989-443 3 Saginaw MI SGNWMIFAXFY  5562 METROPCS, INC. 344   2012-03-07   
989-443 4 Saginaw MI SGNWMIFAXFY  5562 METROPCS, INC. 344   2012-02-22   
989-443 5 Saginaw MI SGNWMIFAXFY  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 344   2013-08-27   
989-443 6 Saginaw MI SGNWMIFAXOY  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 344   2016-02-08   
989-443 7 Saginaw MI SGNWMIFAXOY  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 344   2016-02-08   
989-443 8 Saginaw MI SGNWMIFAXOY  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 344   2016-02-08   
989-443 9 Saginaw MI SGNWMIFAXFY  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 344   2008-08-08   
989-444 A Mount Pleasant MI SGNWMIATUMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 344      
989-444 0 Mount Pleasant MI SGNWMIATUMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 344      
989-444 1 Mount Pleasant MI SGNWMIATUMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 344      
989-444 2 Mount Pleasant MI SGNWMIFAXFY  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 344   2011-10-24   
989-444 3 Mount Pleasant MI SGNWMIATUMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 344   2019-12-13   
989-444 4 Mount Pleasant MI SGNWMIATUMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 344   2020-01-24   
989-444 5 Mount Pleasant MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344   2015-12-17   
989-444 6 Mount Pleasant MI SGNWMIFAXNX  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 344   2013-03-14   
989-444 7 Mount Pleasant MI SGNWMIFAXCY  508J CENTURYLINK COMMUNICATIONS, LLC 344   2015-05-07   
989-444 8 Mount Pleasant MI SGNWMIFAXOY  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 344   2011-09-22   
989-444 9 Mount Pleasant MI SGNWMIFAXOY  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 344   2011-05-14   
989-445 A Chesaning MI SGNWMIFAXOY  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 344      
989-445 0 Chesaning MI SGNWMIFAXOY  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 344      
989-445 1 Chesaning MI SGNWMIFAXOY  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 344   2022-03-10   
989-445 2 Chesaning MI SGNWMIFAXOY  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 344   2024-10-26   
989-445 3 Chesaning MI SGNWMIACEMD  516J TON80 COMMUNICATIONS, LLC 344   2022-02-24   
989-445 4 Chesaning MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344   2021-02-04   
989-445 5 Chesaning MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344   2021-02-04   
989-445 6 Chesaning MI SGNWMIFAXNX  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 344   2016-10-10   
989-445 7 Chesaning MI SGNWMIFAXCY  508J CENTURYLINK COMMUNICATIONS, LLC 344   2015-12-15   
989-445 8 Chesaning MI SGNWMIECXQX  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 344   2021-07-02   
989-446 A Hale MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344      
989-446 2 Hale MI SGNWMIFAXWY  624H ONVOY SPECTRUM, LLC 344   2024-08-11   
989-446 4 Hale MI   145J TERRA NOVA TELECOM INC. 344   2025-05-28   
989-446 6 Hale MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344   2021-08-26   
989-446 8 Hale MI SGNWMIACEMD  516J TON80 COMMUNICATIONS, LLC 344   2022-02-05   
989-447 A St Charles MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344   2025-01-05   
989-447 0 St Charles MI SGNWMIACCMD  145J TERRA NOVA TELECOM INC. 344   2025-01-08   
989-447 1 St Charles MI   145J TERRA NOVA TELECOM INC. 344   2025-10-04   
989-447 2 St Charles MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344   2012-10-13   
989-447 3 St Charles MI SGNWMIFAXJX  991E BANDWIDTH.COM CLEC, LLC - MI 344   2013-03-31   
989-447 4 St Charles MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344   2013-04-05   
989-447 5 St Charles MI SGNWMIATX0X  516C AT&T CORP. 344   2011-09-30   
989-447 6 St Charles MI SGNWMIACDS1  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 344   2014-05-03   
989-447 7 St Charles MI SGNWMIFAXCY  508J CENTURYLINK COMMUNICATIONS, LLC 344   2015-05-06   
989-447 8 St Charles MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344   2016-03-28   
989-447 9 St Charles MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344   2016-03-28   
989-448 A Gaylord MI SGNWMIECXQX  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 344      
989-448 0 Gaylord MI SGNWMIECXQX  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 344   2006-01-27   
989-448 1 Gaylord MI SGNWMIFAXFY  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 344   2007-02-22   
989-448 2 Gaylord MI   792K CHARTER IP ENABLED SERVICES, LLC 344   2009-11-07   
989-448 3 Gaylord MI SGNWMIECXQX  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 344   2007-01-25   
989-448 4 Gaylord MI SGNWMIECXQX  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 344      
989-448 5 Gaylord MI SGNWMIATUMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 344   2019-09-25   
989-448 6 Gaylord MI SGNWMIATUMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 344   2019-09-25   
989-448 7 Gaylord MI   792K CHARTER IP ENABLED SERVICES, LLC 344   2015-01-29   
989-448 8 Gaylord MI   792K CHARTER IP ENABLED SERVICES, LLC 344   2007-05-03   
989-448 9 Gaylord MI SGNWMIFAXFY  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 344   2005-10-22   
989-449 A Ithaca MI MNPLMICFDS1  0127 WINN TELEPHONE COMPANY DBA WINN TELECOM - MI 344      
989-449 0 Ithaca MI MNPLMICFDS1  0127 WINN TELEPHONE COMPANY DBA WINN TELECOM - MI 344      
989-449 1 Ithaca MI MNPLMICFDS1  0127 WINN TELEPHONE COMPANY DBA WINN TELECOM - MI 344      
989-449 2 Ithaca MI MNPLMICFDS1  0127 WINN TELEPHONE COMPANY DBA WINN TELECOM - MI 344      
989-449 3 Ithaca MI SGNWMIFAX5X  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 344   2016-06-10   
989-449 4 Ithaca MI MNPLMICFDS1  0127 WINN TELEPHONE COMPANY DBA WINN TELECOM - MI 344      
989-449 5 Ithaca MI MNPLMICFDS1  0127 WINN TELEPHONE COMPANY DBA WINN TELECOM - MI 344      
989-449 6 Ithaca MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344   2013-03-15   
989-449 7 Ithaca MI MNPLMICFDS1  0127 WINN TELEPHONE COMPANY DBA WINN TELECOM - MI 344      
989-449 8 Ithaca MI SGNWMIACEMD  516J TON80 COMMUNICATIONS, LLC 344   2022-03-21   
989-449 9 Ithaca MI MNPLMICFDS1  0127 WINN TELEPHONE COMPANY DBA WINN TELECOM - MI 344      
989-450 A Bay City MI SGNWMIFAXOY  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 344      
989-451 A Saginaw MI SGNWMIACHMD  490J BOOST SUBSCRIBERCO L.L.C. 344      
989-451 0 Saginaw MI SGNWMIFAXWY  624H ONVOY SPECTRUM, LLC 344   2023-08-15   
989-451 1 Saginaw MI SGNWMIFAXWY  624H ONVOY SPECTRUM, LLC 344   2023-08-15   
989-451 2 Saginaw MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 344   2025-08-25   
989-451 3 Saginaw MI   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 344   2025-09-27   

<< 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 >>

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.