| Prefixes | City | County | Line Type | Company |
|---|---|---|---|---|
| 641-201 | Mason City | Cerro Gordo | Cell Phone | Nextel Communications, Inc. |
| 641-202 | Creston | Union | Landline | United States Cellular Corp... |
| 641-203 | Chariton | Lucas | Landline | United States Cellular Corp... |
| 641-204 | Pella | Marion | Cell Phone | Sprint Spectrum L.p. |
| 641-205 | Knoxville | Marion | Landline | Local Telephone Data Servic... |
| 641-207 | Keota | Keokuk | Landline | Local Telephone Data Servic... |
| 641-208 | Bloomfield | Davis | Cell Phone | Cellco Partnership Dba Veri... |
| 641-209 | Fairfield | Jefferson | Landline | Local Telephone Data Servic... |
| 641-210 | Mason City | Cerro Gordo | Cell Phone | Sprint Spectrum L.p. |
| 641-216 | Centerville | Appanoose | Landline | Local Telephone Data Servic... |
| 641-217 | Chariton | Lucas | Landline | Local Telephone Data Servic... |
| 641-218 | Knoxville | Marion | Cell Phone | Nextel Communications, Inc. |
| 641-220 | Charles City | Floyd | Cell Phone | Verizon Wireless (vaw), Llc |
| 641-223 | Waltham | Middlesex | Cell Phone | New Cingular Wireless Pcs,... |
| 641-224 | Sigourney | Keokuk | Landline | Local Telephone Data Servic... |
| 641-225 | Eddyville | Wapello | Landline | Local Telephone Data Servic... |
| 641-226 | Ottumwa | Wapello | Cell Phone | New Cingular Wireless Pcs,... |
| 641-227 | Baxter | Jasper | Landline | Partner Communications Coop... |
| 641-228 | Charles City | Floyd | Landline | Qwest Corporation |
| 641-229 | New Hampton | Chickasaw | Cell Phone | Verizon Wireless (vaw), Llc |
| 641-231 | Clear Lake | Cerro Gordo | Cell Phone | Nextel Communications, Inc. |
| 641-233 | Fairfield | Jefferson | Cell Phone | Iowa Wireless Services, Lp |
| 641-234 | Waterloo | Black Hawk | Landline | Iowa Rsa 2 Limited Partners... |
| 641-235 | Creston | Union | Landline | Farmers Telephone Co. |
| 641-236 | Grinnell | Poweshiek | Cell Phone | Windstream Iowa Communicati... |
| 641-242 | Marshalltown | Marshall | Landline | Mcc Telephony Of Iowa, Llc... |
| 641-243 | Creston | Union | Landline | Level 3 Communications, Llc... |
| 641-244 | Murray | Clarke | Landline | Unknown |
| 641-245 | Marshalltown | Marshall | Landline | Unknown |
| 641-251 | Mason City | Cerro Gordo | Cell Phone | Nextel Communications, Inc. |
| 641-257 | Charles City | Floyd | Landline | Qwest Corporation |
| 641-259 | Monroe | Jasper | Cell Phone | Windstream Iowa Communicati... |
| 641-260 | Grinnell | Poweshiek | Cell Phone | Cellco Partnership Dba Veri... |
| 641-262 | Ottumwa | Wapello | Landline | Farmers Telephone Co. |
| 641-264 | Creston | Union | Landline | Farmers Telephone Co. |
| 641-265 | Saint Charles | Madison | Landline | Unknown |
| 641-269 | Grinnell | Poweshiek | Cell Phone | Windstream Iowa Communicati... |
| 641-275 | Newton | Jasper | Cell Phone | New Cingular Wireless Pcs,... |
| 641-276 | Eldora | Hardin | Landline | Unknown |
| 641-278 | Jefferson | Greene | Landline | United States Cellular Corp... |
| 641-279 | Readlyn | Bremer | Landline | Unknown |
| 641-286 | Iowa City | Johnson | Landline | Unknown |
| 641-288 | Tama | Tama | Landline | Unknown |
| 641-293 | Northwood | Worth | Landline | Winnebago Coop. Telephone A... |
| 641-295 | Oskaloosa | Mahaska | Landline | United States Cellular Corp... |
| 641-297 | Saint Charles | Madison | Landline | Interstate 35 Tel Co Dba In... |
| 641-298 | Kiester | Faribault | Landline | Citizens Telecom Co Mnfron... |
| 641-307 | Knoxville | Marion | Landline | Unknown |
| 641-309 | Panora | Guthrie | Landline | Farmers Telephone Co. |
| 641-315 | Marble Rock | Floyd | Landline | Omnitel Communications, Inc... |
| 641-316 | Iowa Falls | Hardin | Landline | Sprint Communications Compa... |
| 641-322 | Corning | Adams | Landline | Frontier Communications Of... |
| 641-323 | Northwood | Worth | Landline | Winnebago Cooperative Telep... |
| 641-324 | Northwood | Worth | Landline | Qwest Corporation |
| 641-325 | Grinnell | Poweshiek | Cell Phone | Nextel Communications, Inc. |
| 641-326 | Saint Ansgar | Mitchell | Landline | Citizens Telecom Co Mnfron... |
| 641-328 | Marshalltown | Marshall | Cell Phone | Nextel Communications, Inc. |
| 641-329 | Riceville | Mitchell | Landline | Citizens Telecom Co Mnfron... |
| 641-330 | Charles City | Floyd | Landline | United States Cellular Corp... |
| 641-332 | Guthrie Center | Guthrie | Landline | Guthrie Telecommunications... |
| 641-333 | Lenox | Taylor | Landline | Frontier Communications Of... |
| 641-335 | Prescott | Adams | Cell Phone | Windstream Iowa Communicati... |
| 641-336 | Clearfield | Taylor | Cell Phone | Windstream Iowa Communicati... |
| 641-337 | Orient | Adair | Cell Phone | Windstream Iowa Communicati... |
| 641-338 | Thayer | Union | Landline | Grand River Mutual Telephon... |
| 641-339 | Shannon City | Union | Cell Phone | Windstream Iowa Communicati... |
| 641-340 | Creston | Union | Landline | Iowa Rsa 2 Limited Partners... |
| 641-342 | Osceola | Clarke | Cell Phone | Windstream Iowa Communicati... |
| 641-343 | Greenfield | Adair | Cell Phone | Windstream Iowa Communicati... |
| 641-344 | Afton | Union | Landline | United States Cellular Corp... |
| 641-345 | Creston | Union | Landline | Coon Valley Cooperative Tel... |
| 641-346 | Afton | Union | Cell Phone | Windstream Iowa Communicati... |
| 641-347 | Afton | Union | Cell Phone | Windstream Iowa Communicati... |
| 641-348 | Lenox | Taylor | Cell Phone | Windstream Iowa Communicati... |
| 641-349 | Sharpsburg | Taylor | Landline | Frontier Communications Of... |
| 641-351 | Marshalltown | Marshall | Cell Phone | Sprint Spectrum L.p. |
| 641-352 | Marshalltown | Marshall | Landline | Mcleodusa Telecommunication... |
| 641-354 | Conrad | Grundy | Landline | Communications 1 Network, Inc. |
| 641-355 | Clear Lake | Cerro Gordo | Landline | Clear Lake Independent Tele... |
| 641-357 | Clear Lake | Cerro Gordo | Landline | Clear Lake Independent Tele... |
| 641-358 | Meservey | Cerro Gordo | Landline | Frontier Communications Of... |
| 641-359 | Mount Pleasant | Henry | Landline | Unknown |
| 641-362 | Tama | Tama | Landline | Unknown |
| 641-363 | Mingo | Jasper | Cell Phone | Windstream Iowa Communicati... |
| 641-364 | Alta Vista | Chickasaw | Cell Phone | Windstream Iowa Communicati... |
| 641-366 | Conrad | Grundy | Landline | Heart Of Iowa Communication... |
| 641-369 | Bridgewater | Adair | Cell Phone | Windstream Iowa Communicati... |
| 641-372 | Rockwell | Cerro Gordo | Landline | Sprint Communications Compa... |
| 641-373 | Iowa Falls | Hardin | Landline | United States Cellular Corp... |
| 641-377 | Colo | Story | Landline | Colo Telephone Co. |
| 641-380 | Mason City | Cerro Gordo | Landline | Qwest Corporation |
| 641-381 | Mankato | Blue Earth | Cell Phone | Verizon Wireless (vaw), Llc |
| 641-384 | Clear Lake | Cerro Gordo | Landline | Unknown |
| 641-385 | Collins | Story | Cell Phone | Windstream Iowa Communicati... |
| 641-386 | Jefferson | Greene | Landline | Unknown |
| 641-388 | Fairfield | Jefferson | Landline | Farmers Telephone Co. |
| 641-393 | Elma | Howard | Cell Phone | Windstream Iowa Communicati... |
| 641-394 | New Hampton | Chickasaw | Cell Phone | Windstream Iowa Communicati... |
| 641-395 | Rudd | Floyd | Landline | Farmers Mutual Telephone Co... |
| 641-396 | Saint Charles | Madison | Landline | Interstate 35 Tel Co Dba In... |
| 641-397 | Marble Rock | Floyd | Cell Phone | Windstream Iowa Communicati... |
| 641-398 | Floyd | Floyd | Landline | Farmers Mutual Telephone Co... |
| 641-401 | Clive | Polk | Landline | Unknown |
| 641-414 | New Virginia | Warren | Landline | United States Cellular Corp... |
| 641-416 | West Burlington | Des Moines | Cell Phone | Nextel Communications, Inc. |
| 641-417 | Newton | Jasper | Cell Phone | Nextel Communications, Inc. |
| 641-418 | Corning | Adams | Landline | Rsa 1 Limited Partnership D... |
| 641-420 | Mason City | Cerro Gordo | Cell Phone | Verizon Wireless (vaw), Llc |
| 641-421 | Mason City | Cerro Gordo | Landline | Qwest Corporation |
| 641-422 | Mason City | Cerro Gordo | Landline | Qwest Corporation |
| 641-423 | Mason City | Cerro Gordo | Landline | Qwest Corporation |
| 641-424 | Mason City | Cerro Gordo | Landline | Qwest Corporation |
| 641-425 | Mason City | Cerro Gordo | Landline | United States Cellular Corp... |
| 641-426 | Charles City | Floyd | Cell Phone | Verizon Wireless (vaw), Llc |
| 641-427 | Bagley | Guthrie | Cell Phone | Windstream Iowa Communicati... |
| 641-428 | Kanawha | Hancock | Landline | Qwest Corporation |
| 641-429 | Jamaica | Guthrie | Cell Phone | Windstream Iowa Communicati... |
| 641-430 | Mason City | Cerro Gordo | Landline | United States Cellular Corp... |
| 641-431 | Panora | Guthrie | Landline | United States Cellular Corp... |
| 641-432 | Mason City | Cerro Gordo | Landline | Unknown |
| 641-433 | What Cheer | Keokuk | Landline | Sprint Communications Compa... |
| 641-435 | Nashua | Chickasaw | Landline | Qwest Corporation |
| 641-437 | Centerville | Appanoose | Cell Phone | Windstream Iowa Communicati... |
| 641-439 | Yale | Guthrie | Landline | Prairie Telephone Co., Inc. |
| 641-440 | Clear Lake | Cerro Gordo | Landline | Sprint Communications Compa... |
| 641-442 | Davis City | Decatur | Landline | Grand River Mutual Telephon... |
| 641-443 | Garden Grove | Decatur | Landline | Grand River Mutual Telephon... |
| 641-444 | Belmond | Wright | Landline | Frontier Communications Of... |
| 641-445 | Weldon | Decatur | Landline | Grand River Mutual Telephon... |
| 641-446 | Leon | Decatur | Landline | Grand River Mutual Telephon... |
| 641-447 | Murray | Clarke | Landline | South Central Communication... |
| 641-448 | Kanawha | Hancock | Landline | Unknown |
| 641-449 | New Virginia | Warren | Cell Phone | Windstream Iowa Communicati... |
| 641-452 | Unionville | Appanoose | Cell Phone | Windstream Iowa Communicati... |
| 641-454 | Manly | Worth | Landline | Qwest Corporation |
| 641-455 | Ottumwa | Wapello | Cell Phone | Sprint Spectrum L.p. |
| 641-456 | Hampton | Franklin | Landline | Qwest Corporation |
| 641-457 | Leland | Winnebago | Landline | Sprint Communications Compa... |
| 641-458 | Geneva | Franklin | Landline | Qwest Corporation |
| 641-459 | Bloomfield | Davis | Landline | Citizens Mutual Telephone C... |
| 641-462 | Winterset | Madison | Landline | Unknown |
| 641-464 | Mount Ayr | Ringgold | Cell Phone | Windstream Iowa Communicati... |
| 641-465 | Newton | Jasper | Landline | Greenway Communications L.l... |
| 641-466 | Milo | Warren | Cell Phone | Windstream Iowa Communicati... |
| 641-468 | Creston | Union | Landline | Unknown |
| 641-469 | Fairfield | Jefferson | Cell Phone | Windstream Iowa Communicati... |
| 641-470 | Fairfield | Jefferson | Cell Phone | Windstream Iowa Communicati... |
| 641-472 | Fairfield | Jefferson | Cell Phone | Windstream Iowa Communicati... |
| 641-473 | Gladbrook | Tama | Cell Phone | Windstream Iowa Communicati... |
| 641-474 | Marshalltown | Marshall | Landline | Heart Of Iowa Communication... |
| 641-475 | Haverhill | Marshall | Landline | Heart Of Iowa Communication... |
| 641-476 | Laurel | Marshall | Landline | Heart Of Iowa Communication... |
| 641-477 | Clemons | Marshall | Landline | Minerva Valley Telephone Co... |
| 641-478 | Ferguson | Marshall | Landline | Heart Of Iowa Communication... |
| 641-479 | Le Grand | Marshall | Cell Phone | Windstream Iowa Communicati... |
| 641-481 | Toledo | Tama | Cell Phone | Cellco Partnership Dba Veri... |
| 641-482 | Melbourne | Marshall | Landline | Partner Communications Coop... |
| 641-483 | State Center | Marshall | Landline | Partner Communications Coop... |
| 641-484 | Tama | Tama | Cell Phone | Windstream Iowa Communicati... |
| 641-485 | Marshalltown | Marshall | Landline | United States Cellular Corp... |
| 641-486 | Union | Hardin | Landline | Heart Of Iowa Communication... |
| 641-487 | Zearing | Story | Landline | Minerva Valley Telephone Co... |
| 641-488 | Albion | Marshall | Landline | Heart Of Iowa Communication... |
| 641-489 | Chelsea | Tama | Cell Phone | Windstream Iowa Communicati... |
| 641-492 | Montour | Tama | Cell Phone | Windstream Iowa Communicati... |
| 641-493 | Rhodes | Marshall | Landline | Partner Communications Coop... |
| 641-494 | Mason City | Cerro Gordo | Landline | Qwest Corporation |
| 641-495 | Goodell | Hancock | Landline | Frontier Communications Of... |
| 641-496 | Liscomb | Marshall | Landline | Heart Of Iowa Communication... |
| 641-497 | New Providence | Hardin | Landline | Heart Of Iowa Communication... |
| 641-498 | Gilman | Marshall | Landline | Partner Communications Coop... |
| 641-499 | Garwin | Tama | Cell Phone | Windstream Iowa Communicati... |
| 641-502 | Melbourne | Marshall | Landline | Partner Communications Coop... |
| 641-504 | Oskaloosa | Mahaska | Cell Phone | Iowa Wireless Services, Lp |
| 641-507 | Baxter | Jasper | Landline | Partner Communications Coop... |
| 641-510 | Barnes City | Mahaska | Cell Phone | Iowa Wireless Services, Lp |
| 641-512 | Clear Lake | Cerro Gordo | Landline | United States Cellular Corp... |
| 641-521 | Newton | Jasper | Landline | United States Cellular Corp... |
| 641-522 | Brooklyn | Poweshiek | Landline | Brooklyn Mutual Telephone Co. |
| 641-524 | Menlo | Guthrie | Landline | Coon Valley Cooperative Tel... |
| 641-526 | Kellogg | Jasper | Landline | Partner Communications Coop... |
| 641-527 | Lynnville | Jasper | Landline | Lynnville Community Telepho... |
| 641-528 | Malcom | Poweshiek | Cell Phone | Windstream Iowa Communicati... |
| 641-529 | Clear Lake | Cerro Gordo | Cell Phone | Verizon Wireless (vaw), Llc |
| 641-533 | Derby | Wayne | Landline | Grand River Mutual Telephon... |
| 641-534 | Lacona | Warren | Cell Phone | Windstream Iowa Communicati... |
| 641-535 | Russell | Lucas | Cell Phone | Windstream Iowa Communicati... |
| 641-547 | Cresco | Howard | Landline | Unknown |
| 641-548 | New Hampton | Chickasaw | Landline | Unknown |
| 641-556 | Tama | Tama | Landline | Unknown |
| 641-561 | Buffalo Center | Winnebago | Landline | Winnebago Coop. Telephone A... |
| 641-562 | Buffalo Center | Winnebago | Landline | Winnebago Coop. Telephone A... |
| 641-564 | Grant | Montgomery | Landline | Unknown |
| 641-565 | Crystal Lake | Hancock | Landline | Winnebago Coop. Telephone A... |
| 641-566 | Buffalo Center | Winnebago | Landline | Winnebago Coop. Telephone A... |
| 641-567 | Leland | Winnebago | Landline | Winnebago Coop. Telephone A... |
| 641-568 | Scarville | Winnebago | Landline | Winnebago Coop. Telephone A... |
| 641-569 | Oskaloosa | Mahaska | Cell Phone | New Cingular Wireless Pcs,... |
| 641-570 | Fort Dodge | Webster | Landline | Farmers Telephone Co. |
| 641-576 | Fort Dodge | Webster | Landline | Unknown |
| 641-579 | Latimer | Franklin | Landline | Frontier Communications Of... |
| 641-580 | Alexander | Franklin | Cell Phone | Cellco Partnership Dba Veri... |
| 641-581 | Forest City | Winnebago | Landline | Winnebago Coop. Telephone A... |
| 641-582 | Forest City | Winnebago | Cell Phone | Windstream Iowa Communicati... |
| 641-583 | Manly | Worth | Cell Phone | New Cingular Wireless Pcs,... |
| 641-584 | Thompson | Winnebago | Landline | Winnebago Coop. Telephone A... |
| 641-585 | Forest City | Winnebago | Landline | Winnebago Cooperative Telep... |
| 641-586 | Mc Intire | Mitchell | Landline | Citizens Telecom Co Mnfron... |
| 641-587 | Klemme | Hancock | Landline | Communications 1 Network, Inc. |
| 641-588 | Joice | Worth | Landline | Winnebago Coop. Telephone A... |
| 641-590 | Lake Mills | Winnebago | Cell Phone | Verizon Wireless (vaw), Llc |
| 641-591 | Mystic | Appanoose | Landline | Winnebago Coop. Telephone A... |
| 641-592 | Lake Mills | Winnebago | Landline | Winnebago Coop. Telephone A... |
| 641-593 | Searsboro | Poweshiek | Landline | Searsboro Telephone Co., Inc. |
| 641-594 | Sully | Jasper | Landline | Sully Telephone Association |
| 641-595 | Deep River | Poweshiek | Cell Phone | Windstream Montezuma, Inc. |
| 641-613 | Pella | Marion | Landline | Local Telephone Data Servic... |
| 641-620 | Pella | Marion | Cell Phone | Windstream Iowa Communicati... |
| 641-621 | Pella | Marion | Cell Phone | Windstream Iowa Communicati... |
| 641-622 | Sigourney | Keokuk | Cell Phone | Windstream Iowa Communicati... |
| 641-623 | Montezuma | Poweshiek | Cell Phone | Windstream Montezuma, Inc. |
| 641-624 | Delta | Keokuk | Cell Phone | Windstream Iowa Communicati... |
| 641-625 | Pella | Marion | Cell Phone | Windstream Iowa Communicati... |
| 641-626 | Leighton | Mahaska | Cell Phone | Windstream Iowa Communicati... |
| 641-627 | Otley | Marion | Cell Phone | Windstream Iowa Communicati... |
| 641-628 | Pella | Marion | Cell Phone | Windstream Iowa Communicati... |
| 641-632 | Rose Hill | Mahaska | Landline | Qwest Corporation |
| 641-634 | What Cheer | Keokuk | Cell Phone | Windstream Iowa Communicati... |
| 641-635 | Harper | Keokuk | Cell Phone | Windstream Iowa Communicati... |
| 641-636 | Keota | Keokuk | Cell Phone | Windstream Iowa Communicati... |
| 641-637 | New Sharon | Mahaska | Cell Phone | Windstream Iowa Communicati... |
| 641-640 | Hubbard | Hardin | Cell Phone | Cellco Partnership Dba Veri... |
| 641-642 | Moulton | Appanoose | Landline | Farmers Mutual Cooperative... |
| 641-644 | Barnes City | Mahaska | Landline | Barnes City Cooperative Tel... |
| 641-647 | Mystic | Appanoose | Cell Phone | Windstream Iowa Communicati... |
| 641-648 | Iowa Falls | Hardin | Landline | Qwest Corporation |
| 641-649 | Plano | Appanoose | Cell Phone | Windstream Iowa Communicati... |
| 641-652 | Eldon | Wapello | Cell Phone | Windstream Iowa Communicati... |
| 641-653 | Hedrick | Keokuk | Cell Phone | Windstream Iowa Communicati... |
| 641-654 | Lake Worth | Palm Beach | Landline | Farmers Telephone Co. |
| 641-655 | Hedrick | Keokuk | Cell Phone | Windstream Iowa Communicati... |
| 641-656 | Milton | Van Buren | Cell Phone | Windstream Iowa Communicati... |
| 641-657 | Clear Lake | Cerro Gordo | Landline | Unknown |
| 641-658 | Cincinnati | Appanoose | Cell Phone | Windstream Iowa Communicati... |
| 641-660 | Oskaloosa | Mahaska | Landline | United States Cellular Corp... |
| 641-661 | Hedrick | Keokuk | Cell Phone | Windstream Iowa Communicati... |
| 641-662 | Batavia | Jefferson | Landline | Farmers Telephone Co. |
| 641-664 | Bloomfield | Davis | Landline | Citizens Mutual Telephone C... |
| 641-665 | Knoxville | Marion | Landline | Farmers Telephone Co. |
| 641-667 | Ollie | Keokuk | Cell Phone | Windstream Iowa Communicati... |
| 641-672 | Oskaloosa | Mahaska | Landline | Qwest Corporation |
| 641-673 | Oskaloosa | Mahaska | Landline | Qwest Corporation |
| 641-674 | Forest City | Winnebago | Landline | Unknown |
| 641-675 | Bloomfield | Davis | Landline | Citizens Mutual Telephone C... |
| 641-676 | Oskaloosa | Mahaska | Landline | Mahaska Communication Group... |
| 641-680 | Bloomfield | Davis | Cell Phone | Cellco Partnership Dba Veri... |
| 641-682 | Ottumwa | Wapello | Landline | Qwest Corporation |
| 641-683 | Ottumwa | Wapello | Landline | Qwest Corporation |
| 641-684 | Ottumwa | Wapello | Landline | Qwest Corporation |
| 641-691 | Marshalltown | Marshall | Cell Phone | New Cingular Wireless Pcs,... |
| 641-692 | Alexander | Franklin | Landline | Frontier Communications Of... |
| 641-693 | Libertyville | Jefferson | Cell Phone | Windstream Iowa Communicati... |
| 641-696 | Plymouth | Cerro Gordo | Landline | Farmers Telephone Co. |
| 641-705 | Elma | Howard | Landline | Sprint Communications Compa... |
| 641-710 | Stacyville | Mitchell | Landline | Omnitel Communications, Inc... |
| 641-713 | Saint Ansgar | Mitchell | Landline | Omnitel Communications, Inc... |
| 641-715 | Charles City | Floyd | Cell Phone | Nextel Communications, Inc. |
| 641-722 | Drakesville | Davis | Landline | Citizens Mutual Telephone C... |
| 641-724 | Moravia | Appanoose | Cell Phone | Windstream Iowa Communicati... |
| 641-726 | Melrose | Monroe | Cell Phone | Windstream Iowa Communicati... |
| 641-728 | Peru | Madison | Cell Phone | Windstream Iowa Communicati... |
| 641-732 | Osage | Mitchell | Landline | Qwest Corporation |
| 641-734 | Diagonal | Ringgold | Cell Phone | Windstream Iowa Communicati... |
| 641-735 | Buffalo Center | Winnebago | Landline | Sprint Communications Compa... |
| 641-736 | Saint Ansgar | Mitchell | Cell Phone | Windstream Iowa Communicati... |
| 641-737 | Stacyville | Mitchell | Cell Phone | Windstream Iowa Communicati... |
| 641-739 | Lorimor | Union | Landline | Farmers Telephone Co. |
| 641-740 | Guthrie Center | Guthrie | Cell Phone | Cellco Partnership Dba Veri... |
| 641-742 | Adair | Adair | Cell Phone | Windstream Iowa Communicati... |
| 641-743 | Greenfield | Adair | Cell Phone | Windstream Iowa Communicati... |
| 641-744 | Linden | Dallas | Cell Phone | Windstream Iowa Communicati... |
| 641-745 | Fontanelle | Adair | Cell Phone | Windstream Iowa Communicati... |
| 641-746 | Casey | Guthrie | Landline | Casey Mutual Telephone Co. |
| 641-747 | Guthrie Center | Guthrie | Cell Phone | Windstream Iowa Communicati... |
| 641-748 | Grafton | Worth | Landline | Winnebago Coop. Telephone A... |
| 641-749 | Nora Springs | Floyd | Landline | Farmers Mutual Telephone Co... |
| 641-750 | Marshalltown | Marshall | Cell Phone | Cellco Partnership Dba Veri... |
| 641-751 | Marshalltown | Marshall | Landline | United States Cellular Corp... |
| 641-752 | Marshalltown | Marshall | Landline | Qwest Corporation |
| 641-753 | Marshalltown | Marshall | Landline | Qwest Corporation |
| 641-754 | Marshalltown | Marshall | Landline | Qwest Corporation |
| 641-755 | Panora | Guthrie | Landline | Panora Communications Coope... |
| 641-756 | Rockford | Floyd | Landline | Farmers Mutual Telephone Co... |
| 641-757 | Guthrie Center | Guthrie | Cell Phone | Cellco Partnership Dba Veri... |
| 641-762 | Kanawha | Hancock | Landline | Communications 1 Network, Inc. |
| 641-763 | Lorimor | Union | Landline | South Central Communication... |
| 641-764 | Martensdale | Warren | Cell Phone | Windstream Iowa Communicati... |
| 641-765 | Truro | Madison | Landline | Interstate 35 Tel Co Dba In... |
| 641-766 | Lucas | Lucas | Cell Phone | Windstream Iowa Communicati... |
| 641-767 | Redding | Ringgold | Cell Phone | Windstream Iowa Communicati... |
| 641-768 | Macksburg | Madison | Cell Phone | Windstream Iowa Communicati... |
| 641-772 | Ellston | Ringgold | Cell Phone | Windstream Iowa Communicati... |
| 641-773 | Grand River | Decatur | Landline | Grand River Mutual Telephon... |
| 641-774 | Chariton | Lucas | Cell Phone | Windstream Iowa Communicati... |
| 641-775 | Bristow | Butler | Landline | Rockwell Cooperative Teleph... |
| 641-777 | Ottumwa | Wapello | Landline | United States Cellular Corp... |
| 641-780 | Pella | Marion | Landline | United States Cellular Corp... |
| 641-781 | Gypsum | Saline | Cell Phone | Tmobile Usa, Inc. |
| 641-782 | Creston | Union | Cell Phone | Windstream Iowa Communicati... |
| 641-783 | Kellerton | Ringgold | Cell Phone | Windstream Iowa Communicati... |
| 641-784 | Lamoni | Decatur | Landline | Grand River Mutual Telephon... |
| 641-785 | Benton | Ringgold | Cell Phone | Windstream Iowa Communicati... |
| 641-787 | Newton | Jasper | Cell Phone | Windstream Iowa Communicati... |
| 641-788 | Blockton | Taylor | Landline | Grand River Mutual Telephon... |
| 641-789 | Melbourne | Marshall | Landline | Unknown |
| 641-791 | Newton | Jasper | Cell Phone | Windstream Iowa Communicati... |
| 641-792 | Newton | Jasper | Cell Phone | Windstream Iowa Communicati... |
| 641-793 | Reasnor | Jasper | Landline | Reasnor Telephone Company, Llc |
| 641-794 | Dougherty | Cerro Gordo | Landline | Rockwell Cooperative Teleph... |
| 641-795 | Charles City | Floyd | Landline | Farmers Telephone Co. |
| 641-796 | Stockport | Van Buren | Landline | Unknown |
| 641-797 | Fertile | Cerro Gordo | Landline | Winnebago Coop. Telephone A... |
| 641-798 | Newton | Jasper | Landline | Killduff Telephone Company |
| 641-799 | Ottumwa | Wapello | Landline | United States Cellular Corp... |
| 641-801 | Grove City | Franklin | Landline | Unknown |
| 641-814 | Ottumwa | Wapello | Landline | Local Telephone Data Servic... |
| 641-816 | Greene | Butler | Landline | Omnitel Communications, Inc... |
| 641-821 | Grinnell | Poweshiek | Cell Phone | Sprint Spectrum L.p. |
| 641-822 | Rockwell | Cerro Gordo | Landline | Rockwell Cooperative Teleph... |
| 641-823 | Greene | Butler | Cell Phone | Windstream Iowa Communicati... |
| 641-826 | Lenox | Taylor | Landline | Farmers Telephone Co. |
| 641-827 | Leland | Winnebago | Landline | Farmers Telephone Co. |
| 641-828 | Knoxville | Marion | Cell Phone | Windstream Iowa Communicati... |
| 641-829 | Ventura | Cerro Gordo | Landline | Ventura Telephone Co., Inc. |
| 641-830 | Bloomfield | Davis | Landline | Unknown |
| 641-831 | Newton | Jasper | Cell Phone | Sprint Spectrum L.p. |
| 641-832 | Osage | Mitchell | Landline | Osage Municipal Communicati... |
| 641-833 | Newton | Jasper | Landline | Unknown |
| 641-834 | Clear Lake | Cerro Gordo | Landline | Sprint Communications Compa... |
| 641-840 | Newton | Jasper | Cell Phone | Cellco Partnership Dba Veri... |
| 641-842 | Knoxville | Marion | Cell Phone | Windstream Iowa Communicati... |
| 641-843 | Britt | Hancock | Landline | Qwest Corporation |
| 641-844 | Marshalltown | Marshall | Landline | Qwest Corporation |
| 641-845 | Kensett | Worth | Landline | Winnebago Coop. Telephone A... |
| 641-846 | Ventura | Cerro Gordo | Landline | Sprint Communications Compa... |
| 641-847 | Ackley | Hardin | Landline | Qwest Corporation |
| 641-853 | Rowan | Wright | Landline | Frontier Communications Of... |
| 641-856 | Centerville | Appanoose | Cell Phone | Windstream Iowa Communicati... |
| 641-857 | Dumont | Butler | Landline | Dumont Telephone Co. |
| 641-858 | Eldora | Hardin | Landline | Heart Of Iowa Communication... |
| 641-859 | Aplington | Butler | Landline | Unknown |
| 641-860 | Britt | Hancock | Cell Phone | Verizon Wireless (vaw), Llc |
| 641-862 | Chariton | Lucas | Cell Phone | Windstream Iowa Communicati... |
| 641-864 | Hubbard | Hardin | Landline | Hubbard Cooperative Telepho... |
| 641-865 | Kellogg | Jasper | Landline | Farmers Telephone Co. |
| 641-866 | Coulter | Franklin | Landline | Frontier Communications Of... |
| 641-868 | Steamboat Rock | Hardin | Landline | Heart Of Iowa Communication... |
| 641-869 | Wellsburg | Grundy | Cell Phone | Windstream Iowa Communicati... |
| 641-870 | Corydon | Wayne | Landline | Iowa Rsa 2 Limited Partners... |
| 641-872 | Corydon | Wayne | Landline | South Central Communication... |
| 641-873 | Allerton | Wayne | Landline | Grand River Mutual Telephon... |
| 641-874 | Promise City | Wayne | Cell Phone | Windstream Iowa Communicati... |
| 641-876 | Lineville | Wayne | Landline | Grand River Mutual Telephon... |
| 641-877 | Humeston | Wayne | Cell Phone | Windstream Iowa Communicati... |
| 641-878 | Davis City | Decatur | Landline | Unknown |
| 641-887 | Albia | Monroe | Landline | Sprint Communications Compa... |
| 641-891 | Knoxville | Marion | Landline | United States Cellular Corp... |
| 641-892 | Sheffield | Franklin | Landline | Frontier Communications Of... |
| 641-894 | Aredale | Butler | Landline | Rockwell Cooperative Teleph... |
| 641-895 | Centerville | Appanoose | Landline | United States Cellular Corp... |
| 641-896 | Hanlontown | Worth | Landline | Winnebago Coop. Telephone A... |
| 641-897 | Corydon | Wayne | Landline | Grand River Mutual Telephon... |
| 641-898 | Seymour | Wayne | Cell Phone | Windstream Iowa Communicati... |
| 641-903 | Mason City | Cerro Gordo | Landline | Digital Telecommunications,... |
| 641-919 | Fairfield | Jefferson | Landline | United States Cellular Corp... |
| 641-920 | Steamboat Rock | Hardin | Landline | Heart Of Iowa Communication... |
| 641-922 | Conrad | Grundy | Landline | Heart Of Iowa Communication... |
| 641-923 | Garner | Hancock | Landline | Qwest Corporation |
| 641-926 | Woden | Hancock | Landline | Winnebago Coop. Telephone A... |
| 641-927 | Garner | Hancock | Landline | Winnebago Coop. Telephone A... |
| 641-929 | Bloomfield | Davis | Landline | Citizens Mutual Telephone C... |
| 641-932 | Albia | Monroe | Cell Phone | Windstream Iowa Communicati... |
| 641-933 | Fremont | Mahaska | Cell Phone | Windstream Iowa Communicati... |
| 641-934 | Ottumwa | Wapello | Cell Phone | Windstream Iowa Communicati... |
| 641-935 | Ottumwa | Wapello | Cell Phone | Windstream Iowa Communicati... |
| 641-936 | Douds | Van Buren | Cell Phone | Windstream Iowa Communicati... |
| 641-937 | Agency | Wapello | Cell Phone | Windstream Iowa Communicati... |
| 641-938 | Blakesburg | Wapello | Cell Phone | Windstream Iowa Communicati... |
| 641-939 | Eldora | Hardin | Landline | Heart Of Iowa Communication... |
| 641-942 | Milo | Warren | Cell Phone | Windstream Iowa Communicati... |
| 641-943 | Knoxville | Marion | Cell Phone | Windstream Iowa Communicati... |
| 641-944 | Bussey | Marion | Cell Phone | Windstream Iowa Communicati... |
| 641-946 | Lovilia | Monroe | Cell Phone | Windstream Iowa Communicati... |
| 641-947 | MelcherDallas | Marion | Cell Phone | Windstream Iowa Communicati... |
| 641-948 | Elmore | Faribault | Landline | Blue Earth Valley Telephone... |
| 641-949 | Tracy | Marion | Cell Phone | Windstream Iowa Communicati... |
| 641-961 | Indianola | Warren | Landline | Unknown |
| 641-962 | What Cheer | Keokuk | Landline | Farmers Telephone Co. |
| 641-969 | Eddyville | Wapello | Cell Phone | Windstream Iowa Communicati... |
| 641-981 | Creston | Union | Landline | Unknown |
| 641-982 | Osage | Mitchell | Landline | Farmers Telephone Co. |
| 641-983 | Little Cedar | Mitchell | Landline | Farmers Telephone Co. |
| 641-985 | Riceville | Mitchell | Landline | Farmers Telephone Co. |
| 641-986 | Mount Pleasant | Henry | Landline | Unknown |
| 641-987 | Janesville | Bremer | Landline | Unknown |
| 641-989 | Carlisle | Warren | Landline | Unknown |
| 641-990 | Grinnell | Poweshiek | Landline | United States Cellular Corp... |
| 641-994 | Prairie City | Jasper | Landline | Unknown |
| 641-995 | Swaledale | Cerro Gordo | Landline | Frontier Communications Of... |
| 641-998 | Thornton | Cerro Gordo | Landline | Frontier Communications Of... |