| Telephone Prefix | Phone Type | City |
|---|---|---|
| 636-203 | Landline | Ogden |
| 636-205 | Landline | Philadelphia |
| 636-216 | Landline | Roseville |
| 636-221 | Landline | Birmingham |
| 636-222 | Wireless | Atlanta |
| 636-223 | Landline | Lafayette |
| 636-225 | Landline | Lawton |
| 636-226 | Landline | Las Vegas |
| 636-228 | Landline | Burlington |
| 636-231 | Landline | Pikesville |
| 636-234 | Landline | Worcester |
| 636-235 | Landline | San Antonio |
| 636-236 | Wireless | Honolulu |
| 636-237 | Landline | Alexandria |
| 636-239 | Landline | Lynn |
| 636-240 | Landline | Alexandria |
| 636-242 | Landline | Roseville |
| 636-243 | Landline | Lancaster |
| 636-247 | Landline | Denver |
| 636-249 | Wireless | Houston |
| 636-251 | Wireless | Scranton |
| 636-253 | Wireless | Greenville |
| 636-257 | Landline | Greensboro |
| 636-259 | Wireless | Pittsburgh |
| 636-262 | Wireless | Cedar Rapids |
| 636-264 | Landline | Chicago |
| 636-266 | Landline | Lubbock |
| 636-271 | Landline | Fayetteville |
| 636-272 | Landline | Greenville |
| 636-274 | Landline | Chattanooga |
| 636-281 | Landline | Fort Lauderdale |
| 636-283 | Landline | Asheville |
| 636-285 | Landline | Burlington |
| 636-290 | Wireless | Billings |
| 636-293 | Wireless | Greensburg |
| 636-294 | Landline | Kirkland |
| 636-295 | Wireless | Gulfport |
| 636-297 | Wireless | Gilmer |
| 636-299 | Landline | Providence |
| 636-305 | Landline | Knoxville |
| 636-326 | Landline | Springfield |
| 636-327 | Landline | Fort Worth |
| 636-332 | Landline | Greensboro |
| 636-334 | Landline | Conroe |
| 636-337 | Landline | Gainesville |
| 636-338 | Landline | Dayton |
| 636-343 | Landline | Lancaster |
| 636-346 | Wireless | Exton |
| 636-349 | Landline | Denver |
| 636-355 | Landline | Des Plaines |
| 636-356 | Landline | Lynbrook |
| 636-357 | Wireless | Lynbrook |
| 636-358 | Wireless | Huntsville |
| 636-359 | Wireless | Tucson |
| 636-366 | Landline | Sacramento |
| 636-368 | Landline | Philadelphia |
| 636-375 | Landline | Pittsburgh |
| 636-376 | Landline | Wilmington |
| 636-377 | Landline | Providence |
| 636-379 | Landline | Lowell |
| 636-383 | Wireless | Augusta |
| 636-384 | Wireless | Vista |
| 636-385 | Landline | Fresno |
| 636-388 | Landline | Charlotte |
| 636-390 | Landline | Baltimore |
| 636-392 | Landline | Atlantic City |
| 636-393 | Landline | Cleveland |
| 636-398 | Landline | Toledo |
| 636-400 | Landline | Wabash |
| 636-402 | Landline | Exton |
| 636-412 | Landline | Wilmington |
| 636-425 | Landline | Albany |
| 636-426 | Wireless | Charleston |
| 636-428 | Landline | Tacoma |
| 636-429 | Landline | Los Angeles |
| 636-431 | Landline | New Orleans |
| 636-432 | Landline | Austin |
| 636-433 | Landline | Tulsa |
| 636-434 | Landline | Albany |
| 636-435 | Landline | Pikesville |
| 636-439 | Wireless | Syracuse |
| 636-444 | Landline | Rochester |
| 636-445 | Landline | Chattanooga |
| 636-449 | Landline | Wilmington |
| 636-451 | Landline | Lynn |
| 636-456 | Landline | Lakeland |
| 636-459 | Wireless | Worcester |
| 636-461 | Landline | Toms River |
| 636-462 | Landline | Fort Lauderdale |
| 636-463 | Landline | Jackson |
| 636-464 | Landline | Charleston |
| 636-466 | Wireless | Detroit |
| 636-467 | Landline | Chicago |
| 636-474 | Landline | Green Bay |
| 636-481 | Landline | Rockville |
| 636-482 | Landline | El Toro |
| 636-488 | Landline | Houston |
| 636-489 | Landline | Melbourne |
| 636-492 | Landline | Syracuse |
| 636-495 | Landline | Muncie |
| 636-496 | Landline | Alhambra |
| 636-497 | Wireless | Mobile |
| 636-500 | Landline | Peoria |
| 636-515 | Wireless | Atlanta |
| 636-517 | Landline | Chattanooga |
| 636-519 | Landline | New Haven |
| 636-525 | Landline | Lombard |
| 636-528 | Landline | Huntington Beach |
| 636-529 | Landline | Omaha |
| 636-530 | Landline | Newark |
| 636-532 | Landline | Cedar Rapids |
| 636-533 | Landline | Saginaw |
| 636-534 | Landline | Dallas |
| 636-536 | Landline | Akron |
| 636-537 | Landline | Grand Island |
| 636-538 | Wireless | Waco |
| 636-542 | Landline | New Haven |
| 636-544 | Wireless | Walnut Creek |
| 636-547 | Landline | Jersey City |
| 636-549 | Landline | Oakland |
| 636-551 | Wireless | Pittsburgh |
| 636-556 | Landline | Lynn |
| 636-565 | Landline | Jackson |
| 636-566 | Landline | Sedalia |
| 636-575 | Wireless | Topeka |
| 636-579 | Wireless | Lynbrook |
| 636-582 | Landline | Chico |
| 636-583 | Landline | Boston |
| 636-584 | Landline | Daytona Beach |
| 636-585 | Landline | Green Bay |
| 636-586 | Landline | Portland |
| 636-587 | Landline | Alhambra |
| 636-590 | Landline | Springfield |
| 636-597 | Landline | Peoria |
| 636-600 | Landline | Roseville |
| 636-614 | Landline | Las Vegas |
| 636-633 | Wireless | Lancaster |
| 636-639 | Landline | Cedar Rapids |
| 636-642 | Landline | Greenville |
| 636-648 | Landline | Billings |
| 636-649 | Wireless | Greensburg |
| 636-651 | Landline | Lexington |
| 636-660 | Landline | Pikesville |
| 636-661 | Landline | Worcester |
| 636-662 | Landline | Buffalo |
| 636-665 | Landline | Albany |
| 636-667 | Wireless | San Jose |
| 636-668 | Landline | Virginia Beach |
| 636-671 | Landline | Dallas |
| 636-673 | Landline | Roanoke |
| 636-675 | Wireless | Santa Ana |
| 636-677 | Landline | Cleveland |
| 636-678 | Landline | Salineville |
| 636-679 | Wireless | Fayetteville |
| 636-680 | Landline | Santa Ana |
| 636-681 | Landline | Burlington |
| 636-689 | Landline | Mc Camey |
| 636-692 | Landline | Santa Rosa |
| 636-696 | Landline | Van Nuys |
| 636-698 | Landline | Sarasota |
| 636-707 | Landline | Atlantic City |
| 636-717 | Landline | Jacksonville |
| 636-728 | Landline | Honolulu |
| 636-730 | Landline | Spring Valley |
| 636-733 | Landline | Ann Arbor |
| 636-735 | Landline | Doylestown |
| 636-736 | Landline | Naperville |
| 636-737 | Landline | Tacoma |
| 636-741 | Landline | Little Rock |
| 636-742 | Landline | Fayetteville |
| 636-744 | Landline | Gulfport |
| 636-745 | Landline | Birmingham |
| 636-748 | Landline | Duluth |
| 636-753 | Landline | Tippecanoe |
| 636-764 | Landline | Dumont |
| 636-775 | Landline | Portland |
| 636-777 | Landline | Provo |
| 636-778 | Landline | Kansas City |
| 636-787 | Landline | Sioux Falls |
| 636-789 | Landline | San Antonio |
| 636-791 | Landline | West Palm Beach |
| 636-797 | Landline | Fresno |
| 636-798 | Landline | Atlantic City |
| 636-812 | Landline | Atlantic City |
| 636-825 | Landline | Miami |
| 636-827 | Landline | Long Beach |
| 636-828 | Landline | Alexandria |
| 636-841 | Wireless | Naperville |
| 636-856 | Landline | Tucson |
| 636-861 | Landline | Gary |
| 636-887 | Landline | Sioux City |
| 636-898 | Landline | Martinsville |
| 636-899 | Landline | Muncie |
| 636-923 | Landline | Glen Rock |
| 636-938 | Landline | Muncie |
| 636-978 | Landline | Sedalia |
| 636-980 | Landline | Manchester |
| 636-987 | Landline | Toledo |
| 636-999 | Landline | Colorado Springs |