| Telephone Prefix | Phone Type | City |
|---|---|---|
| 661-200 | Landline | Chicago |
| 661-201 | Wireless | Champaign |
| 661-202 | Landline | Lowell |
| 661-203 | Wireless | Nashville |
| 661-204 | Wireless | Madison |
| 661-205 | Wireless | Cleveland |
| 661-206 | Landline | Phoenix |
| 661-207 | Wireless | Omaha |
| 661-208 | Wireless | Erie |
| 661-209 | Wireless | Newark |
| 661-210 | Landline | Austin |
| 661-212 | Wireless | Lubbock |
| 661-213 | Wireless | Orlando |
| 661-214 | Landline | Little Rock |
| 661-215 | Landline | St. Charles |
| 661-216 | Wireless | Des Moines |
| 661-217 | Wireless | Wilmington |
| 661-219 | Landline | Santa Barbara |
| 661-220 | Wireless | Newark |
| 661-221 | Wireless | Alhambra |
| 661-222 | Landline | Shreveport |
| 661-223 | Landline | Duluth |
| 661-224 | Landline | Las Vegas |
| 661-225 | Landline | Vero Beach |
| 661-226 | Wireless | Louisville |
| 661-229 | Landline | Clarksville |
| 661-230 | Landline | Austin |
| 661-231 | Landline | Ozark |
| 661-232 | Landline | Sioux Falls |
| 661-233 | Landline | Atlantic City |
| 661-234 | Landline | Buffalo |
| 661-235 | Landline | Oakland |
| 661-236 | Landline | Greensburg |
| 661-237 | Landline | Atlanta |
| 661-238 | Landline | Modesto |
| 661-240 | Landline | Muncie |
| 661-241 | Landline | New Haven |
| 661-242 | Landline | Tupelo |
| 661-243 | Landline | Vancouver |
| 661-244 | Landline | Rochester |
| 661-245 | Landline | Santa Ana |
| 661-246 | Landline | Belleville |
| 661-247 | Landline | Lafayette |
| 661-248 | Landline | Greensburg |
| 661-250 | Landline | Kansas City |
| 661-251 | Landline | Providence |
| 661-252 | Landline | Kirkland |
| 661-253 | Landline | Melbourne |
| 661-254 | Landline | Omaha |
| 661-255 | Landline | Sioux Falls |
| 661-256 | Landline | Binghamton |
| 661-257 | Landline | Providence |
| 661-258 | Landline | Green Bay |
| 661-259 | Landline | El Toro |
| 661-260 | Landline | Knoxville |
| 661-262 | Landline | Nashville |
| 661-263 | Landline | Roanoke |
| 661-264 | Landline | Rochester |
| 661-265 | Landline | Orlando |
| 661-266 | Landline | Van Nuys |
| 661-267 | Landline | Appling |
| 661-268 | Landline | Denver |
| 661-269 | Landline | Omaha |
| 661-270 | Landline | Montgomery |
| 661-271 | Landline | Plainfield |
| 661-272 | Landline | Champaign |
| 661-273 | Landline | Boston |
| 661-274 | Landline | Ann Arbor |
| 661-275 | Landline | Sioux Falls |
| 661-276 | Landline | Tacoma |
| 661-277 | Landline | Montgomery |
| 661-278 | Landline | Chico |
| 661-279 | Landline | Portland |
| 661-280 | Landline | Fargo |
| 661-281 | Landline | Austin |
| 661-282 | Landline | Los Angeles |
| 661-283 | Landline | Minneapolis |
| 661-284 | Landline | Waukegan |
| 661-285 | Landline | Evansville |
| 661-286 | Landline | Jacksonville |
| 661-287 | Landline | Sacramento |
| 661-288 | Landline | San Jose |
| 661-289 | Wireless | Boston |
| 661-290 | Landline | Bowling Green |
| 661-291 | Landline | Buffalo |
| 661-292 | Wireless | Ozark |
| 661-293 | Wireless | Toledo |
| 661-294 | Landline | Jackson |
| 661-295 | Landline | Seattle |
| 661-296 | Landline | San Diego |
| 661-297 | Landline | Otsego |
| 661-298 | Landline | Modesto |
| 661-299 | Landline | Franklin |
| 661-300 | Wireless | Vero Beach |
| 661-301 | Wireless | Belleville |
| 661-302 | Landline | Greensboro |
| 661-303 | Wireless | Shreveport |
| 661-304 | Wireless | Peoria |
| 661-305 | Wireless | San Jose |
| 661-306 | Landline | Las Vegas |
| 661-307 | Wireless | Chattanooga |
| 661-308 | Wireless | Buffalo |
| 661-309 | Landline | Yuma |
| 661-310 | Landline | Lowell |
| 661-312 | Wireless | Jonesboro |
| 661-313 | Wireless | Greensburg |
| 661-315 | Wireless | Abilen |
| 661-316 | Landline | Binghamton |
| 661-317 | Wireless | Lynn |
| 661-318 | Wireless | Baton Rouge |
| 661-319 | Wireless | Mason City |
| 661-320 | Landline | Corpus Christi |
| 661-321 | Landline | College Station |
| 661-322 | Landline | Houston |
| 661-323 | Landline | Eau Claire |
| 661-324 | Landline | Fayetteville |
| 661-325 | Landline | Orlando |
| 661-326 | Landline | Boston |
| 661-327 | Landline | Provo |
| 661-328 | Landline | Detroit |
| 661-329 | Wireless | New Haven |
| 661-330 | Wireless | Appling |
| 661-331 | Wireless | Houston |
| 661-332 | Wireless | Houston |
| 661-333 | Wireless | Rockville |
| 661-334 | Landline | Peoria |
| 661-335 | Landline | San Francisco |
| 661-336 | Landline | Waukegan |
| 661-337 | Landline | Waco |
| 661-338 | Landline | Tucson |
| 661-340 | Wireless | Huntington Beach |
| 661-341 | Landline | Muncie |
| 661-342 | Wireless | Akron |
| 661-343 | Wireless | Yuma |
| 661-344 | Wireless | Fort Lauderdale |
| 661-345 | Wireless | Albuquerque |
| 661-346 | Wireless | Spring Valley |
| 661-347 | Landline | Gary |
| 661-348 | Landline | Tallahassee |
| 661-349 | Landline | Macon |
| 661-350 | Landline | Grand Rapids |
| 661-351 | Wireless | Richmond |
| 661-352 | Wireless | Tupelo |
| 661-353 | Wireless | Akron |
| 661-354 | Wireless | Evansville |
| 661-355 | Wireless | Dallas |
| 661-356 | Wireless | Columbia |
| 661-357 | Wireless | Scranton |
| 661-358 | Wireless | Eugene |
| 661-359 | Wireless | Reno |
| 661-360 | Landline | Reading |
| 661-361 | Landline | Van Nuys |
| 661-362 | Landline | New Orleans |
| 661-363 | Landline | Charleston |
| 661-364 | Landline | Lubbock |
| 661-366 | Landline | Duluth |
| 661-367 | Landline | Tyler |
| 661-368 | Landline | Fargo |
| 661-369 | Wireless | Vancouver |
| 661-370 | Landline | Asheville |
| 661-371 | Landline | Oak Park |
| 661-372 | Landline | Lynbrook |
| 661-373 | Wireless | Pittsburgh |
| 661-374 | Landline | Lexington |
| 661-375 | Landline | Syracuse |
| 661-376 | Landline | Fort Lauderdale |
| 661-377 | Landline | Manchester |
| 661-378 | Landline | Sarasota |
| 661-379 | Landline | Kansas City |
| 661-380 | Landline | Saginaw |
| 661-381 | Landline | Vista |
| 661-382 | Landline | Chattanooga |
| 661-383 | Landline | Lansing |
| 661-384 | Landline | Fayetteville |
| 661-385 | Landline | Houston |
| 661-387 | Landline | San Diego |
| 661-388 | Landline | Sioux Falls |
| 661-390 | Landline | Doylestown |
| 661-391 | Landline | Honolulu |
| 661-392 | Landline | Manchester |
| 661-393 | Landline | London |
| 661-394 | Landline | Lafayette |
| 661-395 | Landline | Little Rock |
| 661-396 | Landline | Plainfield |
| 661-397 | Landline | San Antonio |
| 661-398 | Landline | Naperville |
| 661-399 | Landline | Clarksville |
| 661-400 | Wireless | Kirkland |
| 661-401 | Wireless | Sacramento |
| 661-402 | Landline | Portland |
| 661-406 | Wireless | Omaha |
| 661-410 | Landline | Oak Park |
| 661-412 | Landline | Denver |
| 661-414 | Landline | Belleville |
| 661-418 | Wireless | Santa Barbara |
| 661-421 | Landline | Jackson |
| 661-422 | Landline | Wilmington |
| 661-423 | Landline | Lansing |
| 661-424 | Landline | Peoria |
| 661-425 | Landline | Dallas |
| 661-426 | Landline | Mason City |
| 661-427 | Landline | Orlando |
| 661-428 | Wireless | San Francisco |
| 661-429 | Wireless | Alhambra |
| 661-430 | Landline | Providence |
| 661-431 | Landline | Sioux City |
| 661-432 | Wireless | Greensburg |
| 661-433 | Wireless | Atlanta |
| 661-434 | Wireless | Columbia |
| 661-435 | Wireless | Laredo |
| 661-436 | Landline | Columbus |
| 661-437 | Wireless | Charleston |
| 661-438 | Landline | Cheyenne |
| 661-440 | Wireless | Huntsville |
| 661-441 | Landline | Washington |
| 661-442 | Wireless | Los Angeles |
| 661-445 | Landline | Gainesville |
| 661-446 | Landline | Newark |
| 661-447 | Wireless | Van Nuys |
| 661-448 | Wireless | Des Moines |
| 661-449 | Landline | Tupelo |
| 661-450 | Landline | Orlando |
| 661-451 | Landline | Roanoke |
| 661-453 | Landline | Marquette |
| 661-454 | Landline | San Mateo |
| 661-455 | Landline | Tupelo |
| 661-456 | Landline | Buffalo |
| 661-457 | Landline | Cleveland |
| 661-458 | Landline | Santa Ana |
| 661-459 | Landline | Las Vegas |
| 661-461 | Landline | Charlotte |
| 661-464 | Landline | Royal Oak |
| 661-466 | Landline | Modesto |
| 661-467 | Landline | Wichita |
| 661-468 | Landline | Gaithersburg |
| 661-469 | Landline | Nashville |
| 661-470 | Wireless | Santa Barbara |
| 661-471 | Landline | Doylestown |
| 661-472 | Wireless | Clarksville |
| 661-473 | Landline | Jersey City |
| 661-474 | Wireless | Honolulu |
| 661-475 | Landline | Dallas |
| 661-476 | Wireless | Atlantic City |
| 661-477 | Landline | Los Angeles |
| 661-478 | Wireless | Greensboro |