| 563-200 | Davenport | Wireless | Onvoy Spectrum |
| 563-201 | Walcott | Wireless | Sprint Spectrum |
| 563-202 | Decorah | Wireless | Verizon |
| 563-203 | Cresco | Wireless | Verizon |
| 563-205 | Walcott | Wireless | Sprint Spectrum |
| 563-206 | Teeds Grove | Wireless | CenturyLink Communications |
| 563-207 | Dubuque | Wireless | New Cingular Wireless |
| 563-208 | Walcott | Wireless | Sprint Spectrum |
| 563-209 | Davenport | Landline | Mcimetro Access Transmission Services |
| 563-210 | Davenport | Wireless | United States Cellular |
| 563-212 | Clinton | Wireless | United States Cellular |
| 563-213 | Dubuque | Wireless | Sprint Spectrum |
| 563-214 | Davenport | Landline | CenturyLink Communications |
| 563-215 | Walcott | Wireless | Sprint Spectrum |
| 563-216 | Walcott | Wireless | Sprint Spectrum |
| 563-217 | Waukon | Landline | Level 3 Communications |
| 563-218 | Walcott | Wireless | Sprint Spectrum |
| 563-219 | Clinton | Landline | AT&T |
| 563-220 | Sabula | Landline | Mcc Telephony Of Iowa |
| 563-221 | Long Grove | Landline | United States Cellular |
| 563-222 | Walcott | Wireless | Sprint Spectrum |
| 563-223 | Davenport | Landline | Mcc Telephony Of Iowa |
| 563-224 | Maynard | Landline | Windstream Iowa Communications |
| 563-225 | Princeton | Landline | Central Scott Tel. |
| 563-226 | Walcott | Wireless | Sprint Spectrum |
| 563-227 | Davenport | Landline | Mcc Telephony Of Iowa |
| 563-228 | Bellevue | Landline | Windstream Iowa Communications |
| 563-229 | Walcott | Wireless | Sprint Spectrum |
| 563-230 | Dyersville | Landline | Windstream Iowa Communications |
| 563-231 | Dubuque | Wireless | United States Cellular |
| 563-232 | Davenport | Landline | Teleport Communications America |
| 563-233 | Sumner | Landline | Mcc Telephony Of Iowa |
| 563-234 | Walcott | Wireless | Sprint Spectrum |
| 563-235 | Dubuque | Wireless | Verizon |
| 563-236 | La Motte | Landline | Level 3 Communications |
| 563-237 | Fredericksburg | Landline | Windstream Iowa Communications |
| 563-238 | Lawler | Landline | Windstream Iowa Communications |
| 563-239 | Dubuque | Landline | Mcc Telephony Of Iowa |
| 563-240 | Baldwin | Landline | Level 3 Communications |
| 563-241 | Clinton | Landline | Qwest |
| 563-242 | Clinton | Landline | Qwest |
| 563-243 | Clinton | Landline | Qwest |
| 563-244 | Clinton | Landline | Qwest |
| 563-245 | Elkader | Landline | Alpine Communications |
| 563-246 | Calamus | Landline | F&b Communications |
| 563-247 | Walcott | Wireless | Sprint Spectrum |
| 563-248 | Walcott | Wireless | Sprint Spectrum |
| 563-249 | Clinton | Wireless | Verizon |
| 563-250 | Walcott | Wireless | Sprint Spectrum |
| 563-251 | Walcott | Wireless | Sprint Spectrum |
| 563-252 | Guttenberg | Landline | Alpine Communications |
| 563-253 | Tipton | Landline | Windstream Iowa Communications |
| 563-254 | Walcott | Wireless | Sprint Spectrum |
| 563-255 | Guttenberg | Landline | Alpine Communications |
| 563-256 | Walcott | Wireless | Sprint Spectrum |
| 563-257 | Walcott | Wireless | Sprint Spectrum |
| 563-258 | Dubuque | Wireless | New Cingular Wireless |
| 563-259 | Princeton | Landline | Qwest |
| 563-260 | Muscatine | Wireless | United States Cellular |
| 563-261 | Muscatine | Landline | Imon Communications |
| 563-262 | Muscatine | Landline | Qwest |
| 563-263 | Muscatine | Landline | Qwest |
| 563-264 | Muscatine | Landline | Qwest |
| 563-265 | Davenport | Landline | Level 3 Communications |
| 563-266 | Center Junction | Landline | Level 3 Communications |
| 563-267 | Walcott | Wireless | Sprint Spectrum |
| 563-268 | Onslow | Landline | Level 3 Communications |
| 563-269 | Cascade | Landline | Level 3 Communications |
| 563-270 | Center Junction | Landline | Level 3 Communications |
| 563-271 | Davenport | Wireless | Verizon |
| 563-272 | Muscatine | Landline | Qwest |
| 563-273 | Onslow | Landline | Level 3 Communications |
| 563-274 | Zwingle | Landline | Level 3 Communications |
| 563-275 | Davenport | Landline | Windstream It-comm |
| 563-276 | Waukon | Landline | Onvoy |
| 563-277 | Decorah | Landline | Mcc Telephony Of Iowa |
| 563-278 | Teeds Grove | Landline | Onvoy |
| 563-279 | Davenport | Landline | Airus |
| 563-280 | Davenport | Wireless | USA Mobility Wireless |
| 563-281 | Muscatine | Landline | Onvoy |
| 563-282 | Donahue | Landline | Central Scott Tel. |
| 563-283 | Muscatine | Landline | Hd Carrier |
| 563-284 | Walcott | Landline | Qwest |
| 563-285 | Eldridge | Landline | Central Scott Tel. |
| 563-286 | Davenport | Landline | Telnyx |
| 563-287 | Decorah | Landline | Airus |
| 563-288 | Muscatine | Landline | Qwest |
| 563-289 | Le Claire | Landline | Windstream Iowa Communications |
| 563-290 | Waucoma | Landline | Hawkeye Interconnect Company |
| 563-291 | Dubuque | Landline | Onvoy |
| 563-292 | West Union | Landline | Airus |
| 563-293 | Davenport | Landline | Onvoy |
| 563-294 | West Union | Landline | Airus |
| 563-295 | Walcott | Wireless | Sprint Spectrum |
| 563-296 | Davenport | Wireless | Csc Wireless |
| 563-297 | Arlington | Landline | Big River Telephone Company |
| 563-298 | Guttenberg | Wireless | New Cingular Wireless |
| 563-299 | Muscatine | Wireless | Verizon |
| 563-300 | Walcott | Wireless | Sprint Spectrum |
| 563-301 | Walcott | Wireless | Sprint Spectrum |
| 563-302 | Walcott | Wireless | Sprint Spectrum |
| 563-303 | Fayette | Landline | Windstream Iowa Communications |
| 563-304 | Walcott | Wireless | Sprint Spectrum |
| 563-305 | Walcott | Wireless | Sprint Spectrum |
| 563-308 | Preston | Landline | Mcc Telephony Of Iowa |
| 563-313 | Cresco | Landline | Windstream Iowa Communications |
| 563-315 | Strawberry Point | Landline | Windstream Iowa Communications |
| 563-316 | Muscatine | Landline | Cs Technologies |
| 563-320 | Davenport | Wireless | United States Cellular |
| 563-321 | Clinton | Wireless | Verizon |
| 563-322 | Davenport | Landline | Qwest |
| 563-323 | Davenport | Landline | Qwest |
| 563-324 | Davenport | Landline | Qwest |
| 563-325 | Walcott | Wireless | Sprint Spectrum |
| 563-326 | Davenport | Landline | Qwest |
| 563-327 | Davenport | Landline | Qwest |
| 563-328 | Davenport | Landline | Qwest |
| 563-329 | Mc Gregor | Wireless | United States Cellular |
| 563-331 | Tipton | Wireless | United States Cellular |
| 563-332 | Davenport | Landline | Qwest |
| 563-333 | Davenport | Landline | Qwest |
| 563-334 | Decorah | Landline | Airus |
| 563-335 | Walcott | Wireless | Sprint Spectrum |
| 563-336 | Davenport | Landline | Qwest |
| 563-337 | Fayette | Landline | Hawkeye Interconnect Company |
| 563-339 | Sumner | Landline | Windstream Iowa Communications |
| 563-340 | Davenport | Wireless | Verizon |
| 563-343 | Davenport | Wireless | Verizon |
| 563-344 | Davenport | Landline | Qwest |
| 563-345 | Davenport | Landline | Cs Technologies |
| 563-348 | Dubuque | Landline | Fractel |
| 563-349 | Davenport | Wireless | United States Cellular |
| 563-355 | Davenport | Landline | Qwest |
| 563-356 | Chester | Landline | Fractel |
| 563-357 | Clinton | Wireless | United States Cellular |
| 563-358 | Fort Atkinson | Landline | Mcc Telephony Of Iowa |
| 563-359 | Davenport | Landline | Qwest |
| 563-362 | Davenport | Wireless | Brightlink Communications |
| 563-363 | Manchester | Landline | Windstream Iowa Communications |
| 563-365 | Walcott | Wireless | Sprint Spectrum |
| 563-370 | Davenport | Wireless | United States Cellular |
| 563-374 | Wheatland | Landline | F&b Communications |
| 563-375 | Walcott | Wireless | Sprint Spectrum |
| 563-377 | Walcott | Wireless | Sprint Spectrum |
| 563-379 | Decorah | Wireless | United States Cellular |
| 563-380 | Decorah | Wireless | United States Cellular |
| 563-381 | Walcott | Landline | Qwest |
| 563-382 | Decorah | Landline | Qwest |
| 563-383 | Davenport | Landline | Qwest |
| 563-385 | Walcott | Wireless | Sprint Spectrum |
| 563-386 | Davenport | Landline | Qwest |
| 563-387 | Decorah | Landline | Qwest |
| 563-388 | Davenport | Landline | Qwest |
| 563-391 | Davenport | Landline | Qwest |
| 563-393 | Walcott | Wireless | Sprint Spectrum |
| 563-396 | Davenport | Wireless | T-Mobile |
| 563-399 | Walcott | Wireless | Sprint Spectrum |
| 563-400 | Cresco | Landline | Fractel |
| 563-402 | Walcott | Wireless | Sprint Spectrum |
| 563-412 | West Union | Landline | Mcc Telephony Of Iowa |
| 563-414 | Walcott | Wireless | Sprint Spectrum |
| 563-419 | Decorah | Wireless | Verizon |
| 563-421 | Davenport | Landline | Qwest |
| 563-422 | West Union | Landline | Qwest |
| 563-423 | Clermont | Landline | Ace Tel. Assn. |
| 563-424 | Davenport | Landline | Mcc Telephony Of Iowa |
| 563-425 | Fayette | Landline | Windstream Iowa Communications |
| 563-426 | Elgin | Landline | Alpine Communications |
| 563-427 | Hawkeye | Landline | Hawkeye Tel. |
| 563-428 | Randalia | Landline | Windstream Iowa Communications |
| 563-429 | Waucoma | Landline | Windstream Iowa Communications |
| 563-432 | Mechanicsville | Landline | Mechanicsville Tel. |
| 563-440 | Walcott | Wireless | Sprint Spectrum |
| 563-441 | Davenport | Landline | Qwest |
| 563-443 | Walcott | Wireless | Sprint Spectrum |
| 563-444 | Walcott | Wireless | Sprint Spectrum |
| 563-445 | Davenport | Landline | Qwest |
| 563-447 | Walcott | Landline | Bandwidth.com |
| 563-448 | Walcott | Wireless | Sprint Spectrum |
| 563-449 | Davenport | Landline | Qwest |
| 563-451 | Dubuque | Landline | AT&T |
| 563-452 | Clarence | Landline | Clarence Tel. Co. Inc. |
| 563-454 | Wyoming | Landline | Mcc Telephony Of Iowa |
| 563-455 | Walcott | Wireless | Sprint Spectrum |
| 563-459 | Davenport | Landline | Qwest |
| 563-465 | Farley | Landline | Fractel |
| 563-468 | Davenport | Landline | Qwest |
| 563-482 | Lawler | Landline | Windstream Iowa Communications |
| 563-484 | Davenport | Landline | Bandwidth.com |
| 563-485 | Onslow | Landline | Onslow Coop. Tel. Assn. |
| 563-486 | Oxford Junction | Landline | Mcc Telephony Of Iowa |
| 563-487 | Center Junction | Landline | Center Junction Tel. |
| 563-488 | Wyoming | Landline | Wyoming Mutual Tel. |
| 563-492 | Dorchester | Landline | Spring Grove Communications |
| 563-495 | Dubuque | Wireless | T-Mobile |
| 563-496 | Dorchester | Landline | Mabel Coop. Tel. |
| 563-497 | New Albin | Landline | Ace Tel. Assn. |
| 563-499 | Davenport | Landline | AT&T |
| 563-500 | Dubuque | Landline | Fractel |
| 563-503 | Clinton | Wireless | Sprint Spectrum |
| 563-505 | Davenport | Wireless | Sprint Spectrum |
| 563-506 | Muscatine | Wireless | Sprint Spectrum |
| 563-508 | Davenport | Wireless | New Cingular Wireless |
| 563-513 | Dubuque | Landline | United States Cellular |
| 563-514 | Davenport | Landline | Sprint Spectrum |
| 563-516 | Elkader | Wireless | T-Mobile |
| 563-517 | Decorah | Wireless | T-Mobile |
| 563-518 | West Union | Wireless | T-Mobile |
| 563-519 | Clinton | Landline | Mcleodusa Telecommunication Services |
| 563-521 | Maquoketa | Landline | CenturyLink Communications |
| 563-522 | Princeton | Landline | Windstream Iowa Communications |
| 563-525 | Walcott | Wireless | Sprint Spectrum |
| 563-526 | Davenport | Landline | Vonage America |
| 563-528 | Davenport | Wireless | Sprint Spectrum |
| 563-529 | Davenport | Wireless | Sprint Spectrum |
| 563-532 | Ossian | Landline | Ace Tel. Assn. |
| 563-534 | Fort Atkinson | Landline | Ace Tel. Assn. |
| 563-535 | Waterville | Landline | Ace Tel. Assn. |
| 563-536 | Saint Olaf | Landline | Northeast Iowa Tel. |
| 563-537 | Monona | Landline | T-Mobile |
| 563-538 | Lansing | Landline | Qwest |
| 563-539 | Monona | Landline | Northeast Iowa Tel. |
| 563-542 | Dubuque | Wireless | United States Cellular |
| 563-543 | Dubuque | Wireless | United States Cellular |
| 563-544 | New Albin | Landline | Ace Tel. Assn. |
| 563-546 | Dorchester | Landline | Ace Tel. Assn. |
| 563-547 | Cresco | Landline | Windstream Iowa Communications |
| 563-549 | Davenport | Landline | Teleport Communications America |
| 563-551 | Davenport | Landline | Wide Voice |
| 563-552 | Sherrill | Landline | Qwest |
| 563-554 | Muscatine | Wireless | Sprint Spectrum |
| 563-556 | Dubuque | Landline | Qwest |
| 563-557 | Dubuque | Landline | Qwest |
| 563-559 | Clinton | Wireless | Sprint Spectrum |
| 563-562 | Calmar | Landline | Qwest |
| 563-564 | Dubuque | Wireless | Sprint Spectrum |
| 563-565 | Chester | Landline | Centurytel Of Chester |
| 563-566 | Lime Springs | Landline | Windstream Iowa Communications |
| 563-567 | Ossian | Landline | Ace Tel. Assn. |
| 563-568 | Waukon | Landline | Qwest |
| 563-569 | Ridgeway | Landline | Windstream Iowa Communications |
| 563-570 | Davenport | Wireless | T-Mobile |
| 563-571 | Muscatine | Wireless | T-Mobile |
| 563-574 | Delmar | Landline | F&b Communications |
| 563-577 | Goose Lake | Landline | Preston Tel. |
| 563-578 | Sumner | Landline | Windstream Iowa Communications |
| 563-579 | Davenport | Wireless | T-Mobile |
| 563-580 | Dubuque | Wireless | Verizon |
| 563-581 | Dubuque | Wireless | Verizon |
| 563-582 | Dubuque | Landline | Qwest |
| 563-583 | Dubuque | Landline | Qwest |
| 563-584 | Dubuque | Landline | Qwest |
| 563-585 | Dubuque | Landline | Qwest |
| 563-586 | Harpers Ferry | Landline | Ace Tel. Assn. |
| 563-587 | Dubuque | Landline | Qwest |
| 563-588 | Dubuque | Landline | Qwest |
| 563-589 | Dubuque | Landline | Qwest |
| 563-590 | Dubuque | Wireless | United States Cellular |
| 563-593 | Clinton | Wireless | T-Mobile |
| 563-594 | Davenport | Landline | Ymax Communications |
| 563-595 | Walcott | Wireless | Sprint Spectrum |
| 563-599 | Dubuque | Wireless | United States Cellular |
| 563-600 | Lansing | Landline | Fractel |
| 563-605 | Postville | Wireless | Verizon |
| 563-607 | Muscatine | Wireless | New Cingular Wireless |
| 563-608 | Manchester | Wireless | United States Cellular |
| 563-613 | Princeton | Wireless | New Cingular Wireless |
| 563-633 | Arlington | Landline | Windstream Iowa Communications |
| 563-635 | Princeton | Landline | Windstream Iowa Communications |
| 563-637 | Maynard | Landline | Windstream Iowa Communications |
| 563-639 | Davenport | Wireless | New Cingular Wireless |
| 563-644 | Decorah | Landline | Ton80 Communications |
| 563-645 | Walcott | Wireless | Sprint Spectrum |
| 563-649 | Atalissa | Landline | Windstream Iowa Communications |
| 563-650 | Davenport | Wireless | Sprint Spectrum |
| 563-651 | Oxford Junction | Landline | Mcc Telephony Of Iowa |
| 563-652 | Maquoketa | Landline | Qwest |
| 563-655 | Long Grove | Landline | Windstream Iowa Communications |
| 563-657 | Walcott | Landline | AT&T |
| 563-658 | Walcott | Wireless | Sprint Spectrum |
| 563-659 | Long Grove | Landline | Windstream Iowa Communications |
| 563-661 | Maquoketa | Landline | AT&T |
| 563-663 | Dubuque | Wireless | New Cingular Wireless |
| 563-666 | Davenport | Landline | Onvoy |
| 563-672 | Spragueville | Landline | Andrew Tel. |
| 563-673 | Baldwin | Landline | Baldwin Nashville Tel. |
| 563-674 | Delmar | Landline | Windstream Iowa Communications |
| 563-676 | Davenport | Wireless | Sprint Spectrum |
| 563-677 | Charlotte | Landline | Windstream Iowa Communications |
| 563-678 | Lost Nation | Landline | Lost Nation-elwood Tel. |
| 563-682 | Miles | Landline | Miles Coop. Tel. Assn. |
| 563-683 | New Albin | Landline | Mcc Telephony Of Iowa |
| 563-686 | Zwingle | Landline | Cascade Communications Company |
| 563-687 | Sabula | Landline | Windstream Iowa Communications |
| 563-689 | Preston | Landline | Preston Tel. |
| 563-690 | Dubuque | Landline | Mcleodusa Telecommunication Services |
| 563-694 | Goose Lake | Landline | Mcc Telephony Of Iowa |
| 563-722 | Walcott | Wireless | Sprint Spectrum |
| 563-723 | Davenport | Landline | Onvoy |
| 563-724 | Moscow | Landline | Windstream Iowa Communications |
| 563-725 | Elgin | Landline | Mcc Telephony Of Iowa |
| 563-726 | Davenport | Landline | Onvoy |
| 563-729 | Princeton | Landline | Mcc Telephony Of Iowa |
| 563-732 | Wilton | Landline | Wilton Tel. |
| 563-735 | Ridgeway | Landline | Mabel Coop. Tel. |
| 563-737 | Ridgeway | Landline | Mabel Coop. Tel. |
| 563-742 | Davenport | Landline | Qwest |
| 563-744 | Farley | Landline | Windstream Iowa Communications |
| 563-745 | Ridgeway | Landline | Ace Tel. Assn. |
| 563-747 | Walcott | Wireless | Sprint Spectrum |
| 563-748 | Maquoketa | Wireless | Bandwidth.com |
| 563-758 | Worthington | Landline | Fractel |
| 563-764 | Ossian | Landline | Mcc Telephony Of Iowa |
| 563-766 | Colesburg | Landline | Fractel |
| 563-767 | Wadena | Landline | Windstream Iowa Communications |
| 563-770 | Muscatine | Landline | Verizon |
| 563-773 | La Motte | Landline | La Motte Tel. |
| 563-774 | Wadena | Landline | Windstream Iowa Communications |
| 563-776 | Waucoma | Landline | Windstream Iowa Communications |
| 563-777 | Sabula | Wireless | Verizon |
| 563-778 | West Union | Landline | Windstream Iowa Communications |
| 563-783 | Saint Olaf | Landline | Northeast Iowa Tel. |
| 563-785 | Durant | Landline | Windstream Iowa Communications |
| 563-794 | Waukon | Wireless | United States Cellular |
| 563-800 | Calmar | Landline | Onvoy |
| 563-822 | Manchester | Landline | Mcc Telephony Of Iowa |
| 563-823 | Davenport | Landline | Mcleodusa Telecommunication Services |
| 563-826 | Oxford Junction | Landline | Lost Nation-elwood Tel. |
| 563-842 | Holy Cross | Landline | Fractel |
| 563-843 | Dixon | Landline | Dixon Acquisition |
| 563-844 | Davenport | Landline | Terra Nova Telecom Inc. |
| 563-845 | Dubuque | Landline | AT&T |
| 563-847 | Grand Mound | Landline | Grand Mound Coop. Tel. Assn. |
| 563-849 | Dorchester | Landline | Mcc Telephony Of Iowa |
| 563-852 | Cascade | Landline | Cascade Communications Company |
| 563-853 | New Vienna | Landline | Windstream Iowa Communications |
| 563-855 | Worthington | Landline | Windstream Iowa Communications |
| 563-856 | Colesburg | Landline | Windstream Iowa Communications |
| 563-863 | Postville | Landline | Neit Services |
| 563-864 | Postville | Landline | Centurytel Of Postville |
| 563-870 | Holy Cross | Landline | Windstream Iowa Communications |
| 563-872 | Bellevue | Landline | Windstream Iowa Communications |
| 563-873 | Monona | Landline | Alpine Communications |
| 563-875 | Dyersville | Landline | Windstream Iowa Communications |
| 563-876 | Epworth | Landline | Windstream Iowa Communications |
| 563-877 | Earlville | Landline | Fractel |
| 563-879 | Bernard | Landline | Bernard Tel. |
| 563-880 | Mc Gregor | Wireless | United States Cellular |
| 563-883 | Ridgeway | Landline | Harmony Tel. |
| 563-884 | Davenport | Landline | Qwest |
| 563-886 | Tipton | Landline | Windstream Iowa Communications |
| 563-888 | Davenport | Landline | Qwest |
| 563-889 | Tipton | Wireless | T-Mobile |
| 563-890 | Bennett | Landline | F&b Communications |
| 563-893 | Bennett | Landline | Windstream Iowa Communications |
| 563-895 | Davenport | Landline | Twilio International |
| 563-900 | Davenport | Landline | Fractel |
| 563-920 | Manchester | Wireless | United States Cellular |
| 563-921 | New Vienna | Landline | Windstream Iowa Communications |
| 563-922 | Delhi | Landline | Windstream Iowa Communications |
| 563-923 | Earlville | Landline | Windstream Iowa Communications |
| 563-924 | Lamont | Landline | Windstream Iowa Communications |
| 563-925 | Greeley | Landline | Windstream Iowa Communications |
| 563-926 | Hopkinton | Landline | Windstream Iowa Communications |
| 563-927 | Manchester | Landline | Windstream Iowa Communications |
| 563-928 | Elkport | Landline | Windstream Iowa Communications |
| 563-929 | Manchester | Wireless | Verizon |
| 563-932 | Ryan | Landline | Windstream Iowa Communications |
| 563-933 | Strawberry Point | Landline | Windstream Iowa Communications |
| 563-934 | Miles | Landline | Mcc Telephony Of Iowa |
| 563-940 | Davenport | Wireless | Verizon |
| 563-941 | Lowden | Landline | F&b Communications |
| 563-942 | Stanwood | Landline | Cedar Communications |
| 563-944 | Lowden | Landline | Windstream Iowa Communications |
| 563-945 | Stanwood | Landline | Windstream Iowa Communications |
| 563-946 | West Branch | Landline | Windstream Iowa Communications |
| 563-949 | Davenport | Wireless | United States Cellular |
| 563-964 | Garnavillo | Landline | Alpine Communications |
| 563-999 | Muscatine | Landline | Louisa Communications |