| 641-201 | Mason City, IA | Wireless | Sprint Spectrum L.p. |
| 641-202 | Creston, IA | Wireless | United States Cellular Corp. - Iowa |
| 641-203 | Chariton, IA | Wireless | United States Cellular Corp. - Iowa |
| 641-204 | Pella, IA | Wireless | Sprint Spectrum L.p. |
| 641-205 | Knoxville, IA | Landline | Local Telephone Data Services Corp. DBA Ltds Corp. |
| 641-207 | Keota, IA | Landline | Local Telephone Data Services Corp. DBA Ltds Corp. |
| 641-208 | Bloomfield, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-209 | Fairfield, IA | Landline | Local Telephone Data Services Corp. DBA Ltds Corp. |
| 641-210 | Mason City, IA | Wireless | Sprint Spectrum L.p. |
| 641-212 | Windstream Iowa Communications, Inc. - Systems | Landline | Mason City |
| 641-216 | Centerville, IA | Landline | Local Telephone Data Services Corp. DBA Ltds Corp. |
| 641-217 | Chariton, IA | Landline | Windstream Iowa Communications |
| 641-218 | Knoxville, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-220 | Charles City, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-221 | Greenfield, IA | Wireless | United States Cellular Corp. - Iowa |
| 641-223 | Osceola, IA | Wireless | New Cingular Wireless PCS - IL |
| 641-224 | Sigourney, IA | Landline | Local Telephone Data Services Corp. DBA Ltds Corp. |
| 641-225 | Eddyville, IA | Landline | Local Telephone Data Services Corp. DBA Ltds Corp. |
| 641-226 | Ottumwa, IA | Wireless | New Cingular Wireless PCS - IL |
| 641-227 | Baxter, IA | Landline | Partner Communications Cooperative |
| 641-228 | Charles City, IA | Landline | Qwest Corporation |
| 641-229 | New Hampton, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-230 | Pella, IA | Wireless | New Cingular Wireless PCS - IL |
| 641-231 | Clear Lake, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-232 | Leighton, IA | Wireless | New Cingular Wireless PCS - IL |
| 641-233 | Fairfield, IA | Wireless | Iowa Wireless Services, Lp |
| 641-234 | Mount Ayr, IA | Wireless | Iowa Rsa 2 Limited Partnership DBA Chat Mobility |
| 641-236 | Grinnell, IA | Landline | Windstream Iowa Communications - North |
| 641-242 | Bloomfield, IA | Landline | Mcc Telephony Of Iowa |
| 641-243 | Mason City, IA | Landline | Level 3 Communications |
| 641-247 | Fontanelle, IA | Wireless | United States Cellular Corp. - Iowa |
| 641-251 | Forest City, IA | Wireless | Iowa Wireless Services, Lp |
| 641-257 | Charles City, IA | Landline | Qwest Corporation |
| 641-259 | Monroe, IA | Landline | Windstream Iowa Communications |
| 641-260 | Grinnell, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-264 | Little Cedar, IA | Landline | Farmers Telephone Co. |
| 641-269 | Grinnell, IA | Landline | Windstream Iowa Communications - North |
| 641-275 | Newton, IA | Wireless | New Cingular Wireless PCS - IL |
| 641-278 | Creston, IA | Wireless | Windstream Iowa Communications - North |
| 641-289 | Lamoni, IA | Wireless | United States Cellular Corp. - Iowa |
| 641-295 | Oskaloosa, IA | Wireless | United States Cellular Corp. - Iowa |
| 641-315 | Marble Rock, IA | Landline | Omnitel Communications |
| 641-316 | Iowa Falls, IA | Landline | Zayo Group LLC |
| 641-317 | Kanawha, IA | Landline | Greenway Communications L.l.c. |
| 641-318 | Knoxville, IA | Wireless | Iowa Wireless Services, Lp |
| 641-322 | Corning, IA | Landline | Frontier Communications Of Iowa |
| 641-323 | Northwood, IA | Landline | Winnebago Cooperative Telephone Association |
| 641-324 | Northwood, IA | Landline | Qwest Corporation |
| 641-325 | Grinnell, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-328 | Marshalltown, IA | Wireless | Sprint Spectrum L.p. |
| 641-330 | Charles City, IA | Wireless | United States Cellular Corp. - Iowa |
| 641-332 | Guthrie Center, IA | Landline | Guthrie Telecommunications Network Inc. |
| 641-333 | Lenox, IA | Landline | Frontier Communications Of Iowa |
| 641-335 | Corning, IA | Landline | Windstream Iowa Communications - North |
| 641-336 | Clearfield, IA | Landline | Windstream Iowa Communications |
| 641-337 | Orient, IA | Landline | Windstream Iowa Communications - North |
| 641-338 | Thayer, IA | Landline | Grand River Mutual Telephone Co. |
| 641-339 | Shannon City, IA | Landline | Windstream Iowa Communications |
| 641-340 | Osceola, IA | Wireless | Iowa Rsa 2 Limited Partnership DBA Chat Mobility |
| 641-342 | Osceola, IA | Landline | Windstream Iowa Communications - North |
| 641-343 | Greenfield, IA | Landline | Windstream Iowa Communications - Systems |
| 641-344 | Osceola, IA | Wireless | United States Cellular Corp. - Iowa |
| 641-346 | Shannon City, IA | Landline | Windstream Iowa Communications |
| 641-347 | Afton, IA | Landline | Windstream Iowa Communications |
| 641-349 | Sharpsburg, IA | Landline | Frontier Communications Of Iowa |
| 641-351 | Marshalltown, IA | Wireless | Sprint Spectrum L.p. |
| 641-352 | Marshalltown, IA | Landline | Mcleodusa Telecommunications Services- Ia |
| 641-353 | Kensett, IA | Landline | Mcc Telephony Of Iowa |
| 641-355 | Clear Lake, IA | Landline | Clear Lake Independent Telephone Co. |
| 641-357 | Clear Lake, IA | Landline | Clear Lake Independent Telephone Co. |
| 641-358 | Meservey, IA | Landline | Frontier Communications Of Iowa |
| 641-363 | Mingo, IA | Landline | Windstream Iowa Communications - Systems |
| 641-364 | Elma, IA | Landline | Windstream Iowa Communications - North |
| 641-366 | Conrad, IA | Landline | Heart Of Iowa Communications Cooperative |
| 641-369 | Bridgewater, IA | Landline | Windstream Iowa Communications - Systems |
| 641-372 | Rockwell, IA | Landline | Mcc Telephony Of Iowa |
| 641-373 | Iowa Falls, IA | Wireless | United States Cellular Corp. - Iowa |
| 641-377 | Colo, IA | Landline | Colo Telephone Co. |
| 641-380 | Mason City, IA | Landline | Qwest Corporation |
| 641-381 | Northwood, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-385 | Collins, IA | Landline | Windstream Iowa Communications - North |
| 641-388 | Little Cedar, IA | Landline | Farmers Telephone Co. |
| 641-390 | Northwood, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-393 | Elma, IA | Landline | Windstream Iowa Communications - North |
| 641-394 | New Hampton, IA | Landline | Windstream Iowa Communications - Systems |
| 641-395 | Rudd, IA | Landline | Farmers Mutual Telephone Co. - Nora Springs |
| 641-397 | Marble Rock, IA | Landline | Windstream Iowa Communications - Systems |
| 641-398 | Floyd, IA | Landline | Farmers Mutual Telephone Co. - Nora Springs |
| 641-413 | Lenox, IA | Wireless | Rsa 1 Limited Partnership DBA Chat Mobility |
| 641-414 | Osceola, IA | Wireless | United States Cellular Corp. - Iowa |
| 641-416 | Pella, IA | Wireless | Sprint Spectrum L.p. |
| 641-417 | Newton, IA | Wireless | Sprint Spectrum L.p. |
| 641-418 | Corning, IA | Wireless | Rsa 1 Limited Partnership DBA Chat Mobility |
| 641-420 | Mason City, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-421 | Mason City, IA | Landline | Qwest Corporation |
| 641-422 | Mason City, IA | Landline | Qwest Corporation |
| 641-423 | Mason City, IA | Landline | Qwest Corporation |
| 641-424 | Mason City, IA | Landline | Qwest Corporation |
| 641-425 | Mason City, IA | Wireless | United States Cellular Corp. - Iowa |
| 641-426 | Charles City, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-427 | Bagley, IA | Landline | Windstream Iowa Communications |
| 641-428 | Mason City, IA | Landline | Qwest Corporation |
| 641-429 | Jamaica, IA | Landline | Windstream Iowa Communications |
| 641-430 | Mason City, IA | Wireless | United States Cellular Corp. - Iowa |
| 641-431 | Yale, IA | Wireless | United States Cellular Corp. - Iowa |
| 641-433 | What Cheer, IA | Landline | Windstream Iowa Communications - North |
| 641-435 | Nashua, IA | Landline | Qwest Corporation |
| 641-436 | Centerville, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-437 | Centerville, IA | Landline | Windstream Iowa Communications |
| 641-439 | Yale, IA | Landline | Prairie Telephone Co. |
| 641-440 | Clear Lake, IA | Landline | Mcc Telephony Of Iowa |
| 641-442 | Davis City, IA | Landline | Grand River Mutual Telephone Co. |
| 641-443 | Garden Grove, IA | Landline | Grand River Mutual Telephone Co. |
| 641-444 | Belmond, IA | Landline | Frontier Communications Of Iowa |
| 641-445 | Weldon, IA | Landline | Grand River Mutual Telephone Co. |
| 641-446 | Leon, IA | Landline | Grand River Mutual Telephone Co. |
| 641-447 | Murray, IA | Landline | South Central Communications |
| 641-449 | New Virginia, IA | Landline | Windstream Iowa Communications |
| 641-450 | Mason City, IA | Landline | Northland Communications |
| 641-451 | Fairfield, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-452 | Unionville, IA | Landline | Windstream Iowa Communications |
| 641-454 | Manly, IA | Landline | Qwest Corporation |
| 641-455 | Ottumwa, IA | Wireless | Sprint Spectrum L.p. |
| 641-456 | Hampton, IA | Landline | Qwest Corporation |
| 641-457 | Leland, IA | Landline | Mcc Telephony Of Iowa |
| 641-458 | Hampton, IA | Landline | Qwest Corporation |
| 641-459 | Floris, IA | Landline | Citizens Mutual Telephone Cooperative |
| 641-464 | Mount Ayr, IA | Landline | Windstream Iowa Communications |
| 641-465 | Klemme, IA | Landline | Greenway Communications L.l.c. |
| 641-466 | Lucas, IA | Landline | Windstream Iowa Communications |
| 641-469 | Fairfield, IA | Landline | Windstream Iowa Communications - Systems |
| 641-470 | Fairfield, IA | Landline | Windstream Iowa Communications - Systems |
| 641-472 | Fairfield, IA | Landline | Windstream Iowa Communications - Systems |
| 641-473 | Gladbrook, IA | Landline | Windstream Iowa Communications - North |
| 641-475 | Haverhill, IA | Landline | Heart Of Iowa Communications Cooperative |
| 641-476 | Laurel, IA | Landline | Heart Of Iowa Communications Cooperative |
| 641-477 | Clemons, IA | Landline | Minerva Valley Telephone Co. |
| 641-478 | Gilman, IA | Landline | Heart Of Iowa Communications Cooperative |
| 641-479 | Montour, IA | Landline | Windstream Iowa Communications - North |
| 641-481 | Toledo, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-482 | Melbourne, IA | Landline | Partner Communications Cooperative |
| 641-483 | State Center, IA | Landline | Partner Communications Cooperative |
| 641-484 | Toledo, IA | Landline | Windstream Iowa Communications - North |
| 641-485 | Marshalltown, IA | Wireless | United States Cellular Corp. - Iowa |
| 641-486 | Union, IA | Landline | Heart Of Iowa Communications Cooperative |
| 641-487 | Zearing, IA | Landline | Minerva Valley Telephone Co. |
| 641-488 | Albion, IA | Landline | Heart Of Iowa Communications Cooperative |
| 641-489 | Chelsea, IA | Landline | Windstream Iowa Communications - North |
| 641-492 | Montour, IA | Landline | Windstream Iowa Communications - North |
| 641-493 | Rhodes, IA | Landline | Partner Communications Cooperative |
| 641-494 | Mason City, IA | Landline | Qwest Corporation |
| 641-495 | Goodell, IA | Landline | Frontier Communications Of Iowa |
| 641-496 | Liscomb, IA | Landline | Heart Of Iowa Communications Cooperative |
| 641-497 | New Providence, IA | Landline | Heart Of Iowa Communications Cooperative |
| 641-498 | Gilman, IA | Landline | Partner Communications Cooperative |
| 641-499 | Garwin, IA | Landline | Windstream Iowa Communications - North |
| 641-502 | Melbourne, IA | Landline | Partner Communications Cooperative |
| 641-504 | Oskaloosa, IA | Wireless | Iowa Wireless Services, Lp |
| 641-507 | Baxter, IA | Landline | Partner Communications Cooperative |
| 641-510 | Grinnell, IA | Wireless | Iowa Wireless Services, Lp |
| 641-512 | Mason City, IA | Wireless | United States Cellular Corp. - Iowa |
| 641-519 | Garner, IA | Landline | Mcc Telephony Of Iowa |
| 641-521 | Newton, IA | Wireless | United States Cellular Corp. - Iowa |
| 641-522 | Brooklyn, IA | Landline | Brooklyn Mutual Telephone Co. |
| 641-523 | Corydon, IA | Landline | Mcc Telephony Of Iowa |
| 641-524 | Menlo, IA | Landline | Coon Valley Cooperative Telephone Assn. |
| 641-525 | Clear Lake, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-526 | Kellogg, IA | Landline | Partner Communications Cooperative |
| 641-527 | Lynnville, IA | Landline | Lynnville Community Telephone Co. |
| 641-528 | Malcom, IA | Landline | Windstream Iowa Communications - North |
| 641-529 | Clear Lake, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-530 | Mason City, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-533 | Humeston, IA | Landline | Grand River Mutual Telephone Co. |
| 641-534 | Lacona, IA | Landline | Windstream Iowa Communications |
| 641-535 | Russell, IA | Landline | Windstream Iowa Communications |
| 641-536 | Lenox, IA | Landline | Lenox Municipal Communications Utility |
| 641-541 | Sigourney, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-552 | Rudd, IA | Landline | Omnitel Communications |
| 641-557 | Windstream Iowa Communications, Inc. - Systems | Landline | Mason City |
| 641-561 | Buffalo Center, IA | Landline | Winnebago Coop. Telephone Assn. - Iowa |
| 641-562 | Buffalo Center, IA | Landline | Winnebago Coop. Telephone Assn. - Iowa |
| 641-565 | Woden, IA | Landline | Winnebago Coop. Telephone Assn. - Iowa |
| 641-566 | Buffalo Center, IA | Landline | Winnebago Coop. Telephone Assn. - Iowa |
| 641-567 | Leland, IA | Landline | Winnebago Coop. Telephone Assn. - Iowa |
| 641-568 | Scarville, IA | Landline | Winnebago Coop. Telephone Assn. - Iowa |
| 641-569 | Oskaloosa, IA | Wireless | New Cingular Wireless PCS - IL |
| 641-570 | Little Cedar, IA | Landline | Farmers Telephone Co. |
| 641-572 | Leon, IA | Wireless | United States Cellular Corp. - Iowa |
| 641-579 | Latimer, IA | Landline | Frontier Communications Of Iowa |
| 641-580 | Latimer, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-581 | Forest City, IA | Landline | Winnebago Coop. Telephone Assn. - Iowa |
| 641-582 | Forest City, IA | Landline | Windstream Iowa Communications - North |
| 641-583 | Manly, IA | Wireless | New Cingular Wireless PCS - IL |
| 641-584 | Thompson, IA | Landline | Winnebago Coop. Telephone Assn. - Iowa |
| 641-585 | Forest City, IA | Landline | Winnebago Cooperative Telephone Association |
| 641-587 | Klemme, IA | Landline | Communications 1 Network |
| 641-588 | Joice, IA | Landline | Winnebago Coop. Telephone Assn. - Iowa |
| 641-590 | Joice, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-591 | Lake Mills, IA | Landline | Winnebago Coop. Telephone Assn. - Iowa |
| 641-592 | Lake Mills, IA | Landline | Winnebago Coop. Telephone Assn. - Iowa |
| 641-593 | Searsboro, IA | Landline | Searsboro Telephone Co. |
| 641-594 | Sully, IA | Landline | Sully Telephone Association |
| 641-595 | Deep River, IA | Landline | Windstream Montezuma |
| 641-596 | Joice, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-608 | Little Cedar, IA | Landline | Farmers Telephone Co. |
| 641-613 | Pella, IA | Landline | Local Telephone Data Services Corp. DBA Ltds Corp. |
| 641-620 | Pella, IA | Landline | Windstream Iowa Communications |
| 641-621 | Pella, IA | Landline | Windstream Iowa Communications |
| 641-622 | Sigourney, IA | Landline | Windstream Iowa Communications - North |
| 641-623 | Montezuma, IA | Landline | Windstream Montezuma |
| 641-624 | Delta, IA | Landline | Windstream Iowa Communications - North |
| 641-626 | Leighton, IA | Landline | Windstream Iowa Communications |
| 641-627 | Otley, IA | Landline | Windstream Iowa Communications |
| 641-628 | Pella, IA | Landline | Windstream Iowa Communications |
| 641-629 | Pella, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-632 | Rose Hill, IA | Landline | Qwest Corporation |
| 641-634 | What Cheer, IA | Landline | Windstream Iowa Communications - North |
| 641-635 | Harper, IA | Landline | Windstream Iowa Communications - North |
| 641-636 | Keota, IA | Landline | Windstream Iowa Communications - North |
| 641-637 | New Sharon, IA | Landline | Windstream Iowa Communications - Systems |
| 641-638 | Oskaloosa, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-640 | Iowa Falls, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-642 | Moulton, IA | Landline | Farmers Mutual Cooperative Telephone Co. |
| 641-644 | Barnes City, IA | Landline | Barnes City Cooperative Telephone Co. |
| 641-647 | Centerville, IA | Landline | Windstream Iowa Communications |
| 641-648 | Iowa Falls, IA | Landline | Qwest Corporation |
| 641-649 | Plano, IA | Landline | Windstream Iowa Communications |
| 641-651 | Pella, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-652 | Eldon, IA | Landline | Windstream Iowa Communications |
| 641-653 | Hedrick, IA | Landline | Windstream Iowa Communications |
| 641-656 | Milton, IA | Landline | Windstream Iowa Communications |
| 641-658 | Cincinnati, IA | Landline | Windstream Iowa Communications |
| 641-659 | Windstream Iowa Communications, Inc. - North | Landline | Mason City |
| 641-660 | Oskaloosa, IA | Wireless | United States Cellular Corp. - Iowa |
| 641-661 | Hedrick, IA | Landline | Windstream Iowa Communications |
| 641-662 | Batavia, IA | Landline | Farmers Telephone Co. |
| 641-664 | Bloomfield, IA | Landline | Citizens Mutual Telephone Cooperative |
| 641-667 | Ollie, IA | Landline | Windstream Iowa Communications |
| 641-670 | Oskaloosa, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-672 | Oskaloosa, IA | Landline | Qwest Corporation |
| 641-673 | Oskaloosa, IA | Landline | Qwest Corporation |
| 641-675 | Pulaski, IA | Landline | Citizens Mutual Telephone Cooperative |
| 641-676 | Oskaloosa, IA | Landline | Mahaska Communication Group |
| 641-678 | Searsboro, IA | Landline | Searsboro Telephone Co. |
| 641-680 | Ottumwa, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-682 | Ottumwa, IA | Landline | Qwest Corporation |
| 641-683 | Ottumwa, IA | Landline | Qwest Corporation |
| 641-684 | Ottumwa, IA | Landline | Qwest Corporation |
| 641-691 | Marshalltown, IA | Wireless | New Cingular Wireless PCS - IL |
| 641-692 | Alexander, IA | Landline | Frontier Communications Of Iowa |
| 641-693 | Libertyville, IA | Landline | Windstream Iowa Communications |
| 641-696 | Plymouth, IA | Landline | Farmers Telephone Co. |
| 641-705 | Elma, IA | Landline | Mcc Telephony Of Iowa |
| 641-710 | Stacyville, IA | Landline | Omnitel Communications |
| 641-715 | Charles City, IA | Wireless | Zayo Group LLC |
| 641-722 | Drakesville, IA | Landline | Citizens Mutual Telephone Cooperative |
| 641-724 | Moravia, IA | Landline | Windstream Iowa Communications |
| 641-726 | Melrose, IA | Landline | Windstream Iowa Communications - Systems |
| 641-728 | Peru, IA | Landline | Windstream Iowa Communications |
| 641-732 | Osage, IA | Landline | Qwest Corporation |
| 641-734 | Diagonal, IA | Landline | Windstream Iowa Communications |
| 641-735 | Buffalo Ctr, IA | Landline | Mcc Telephony Of Iowa |
| 641-737 | Stacyville, IA | Landline | Windstream Iowa Communications - North |
| 641-740 | Casey, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-741 | Sully, IA | Landline | Killduff Telephone Company |
| 641-742 | Adair, IA | Landline | Windstream Iowa Communications - Systems |
| 641-743 | Greenfield, IA | Landline | Windstream Iowa Communications - Systems |
| 641-744 | Linden, IA | Landline | Windstream Iowa Communications - North |
| 641-745 | Fontanelle, IA | Landline | Windstream Iowa Communications - Systems |
| 641-746 | Casey, IA | Landline | Casey Mutual Telephone Co. |
| 641-747 | Guthrie Center, IA | Landline | Windstream Iowa Communications - Systems |
| 641-748 | Grafton, IA | Landline | Winnebago Coop. Telephone Assn. - Iowa |
| 641-749 | Nora Springs, IA | Landline | Farmers Mutual Telephone Co. - Nora Springs |
| 641-750 | Marshalltown, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-751 | Marshalltown, IA | Wireless | United States Cellular Corp. - Iowa |
| 641-752 | Marshalltown, IA | Landline | Qwest Corporation |
| 641-753 | Marshalltown, IA | Landline | Qwest Corporation |
| 641-754 | Marshalltown, IA | Landline | Qwest Corporation |
| 641-755 | Panora, IA | Landline | Panora Communications Cooperative |
| 641-756 | Rockford, IA | Landline | Farmers Mutual Telephone Co. - Nora Springs |
| 641-757 | Panora, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-758 | Marshalltown, IA | Landline | Heart Of Iowa Ventures |
| 641-762 | Kanawha, IA | Landline | Communications 1 Network |
| 641-763 | Lorimor, IA | Landline | South Central Communications |
| 641-764 | Prole, IA | Landline | Windstream Iowa Communications |
| 641-765 | Truro, IA | Landline | Interstate 35 Tel Co DBA Interstate Communications |
| 641-766 | Derby, IA | Landline | Windstream Iowa Communications |
| 641-767 | Redding, IA | Landline | Windstream Iowa Communications |
| 641-768 | Macksburg, IA | Landline | Windstream Iowa Communications |
| 641-772 | Tingley, IA | Landline | Windstream Iowa Communications |
| 641-773 | Grand River, IA | Landline | Grand River Mutual Telephone Co. |
| 641-774 | Chariton, IA | Landline | Windstream Iowa Communications |
| 641-775 | Bristow, IA | Landline | Rockwell Cooperative Telephone Association |
| 641-777 | Ottumwa, IA | Wireless | United States Cellular Corp. - Iowa |
| 641-780 | Pella, IA | Wireless | United States Cellular Corp. - Iowa |
| 641-781 | Newton, IA | Wireless | T-mobile Usa |
| 641-782 | Creston, IA | Landline | Windstream Iowa Communications - North |
| 641-783 | Kellerton, IA | Landline | Windstream Iowa Communications |
| 641-784 | Lamoni, IA | Landline | Grand River Mutual Telephone Co. |
| 641-785 | Benton, IA | Landline | Windstream Iowa Communications |
| 641-787 | Newton, IA | Landline | Windstream Iowa Communications - Systems |
| 641-788 | Redding, IA | Landline | Grand River Mutual Telephone Co. |
| 641-790 | Sigourney, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-791 | Newton, IA | Landline | Windstream Iowa Communications - Systems |
| 641-792 | Newton, IA | Landline | Windstream Iowa Communications - Systems |
| 641-793 | Reasnor, IA | Landline | Reasnor Telephone Company |
| 641-794 | Dougherty, IA | Landline | Rockwell Cooperative Telephone Association |
| 641-795 | Little Cedar, IA | Landline | Farmers Telephone Co. |
| 641-797 | Fertile, IA | Landline | Winnebago Coop. Telephone Assn. - Iowa |
| 641-798 | Sully, IA | Landline | Killduff Telephone Company |
| 641-799 | Ottumwa, IA | Wireless | United States Cellular Corp. - Iowa |
| 641-812 | Hampton, IA | Landline | Mcc Telephony Of Iowa |
| 641-814 | Ottumwa, IA | Landline | Local Telephone Data Services Corp. DBA Ltds Corp. |
| 641-816 | Greene, IA | Landline | Omnitel Communications |
| 641-819 | Windstream Iowa Communications, Inc. - Systems | Landline | Mason City |
| 641-820 | Knoxville, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-821 | Grinnell, IA | Wireless | Sprint Spectrum L.p. |
| 641-822 | Rockwell, IA | Landline | Rockwell Cooperative Telephone Association |
| 641-823 | Greene, IA | Landline | Windstream Iowa Communications - Systems |
| 641-826 | Little Cedar, IA | Landline | Farmers Telephone Co. |
| 641-828 | Knoxville, IA | Landline | Windstream Iowa Communications |
| 641-829 | Ventura, IA | Landline | Ventura Telephone Co. |
| 641-831 | Newton, IA | Wireless | Sprint Spectrum L.p. |
| 641-832 | Osage, IA | Landline | Osage Municipal Communications Utility |
| 641-834 | Lynnville, IA | Landline | Mcc Telephony Of Iowa |
| 641-840 | Newton, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-841 | Newton, IA | Wireless | Windstream Iowa Communications - Systems |
| 641-842 | Knoxville, IA | Landline | Windstream Iowa Communications |
| 641-843 | Britt, IA | Landline | Qwest Corporation |
| 641-844 | Marshalltown, IA | Landline | Qwest Corporation |
| 641-845 | Kensett, IA | Landline | Winnebago Coop. Telephone Assn. - Iowa |
| 641-846 | Ventura, IA | Landline | Mcc Telephony Of Iowa |
| 641-847 | Ackley, IA | Landline | Qwest Corporation |
| 641-849 | Eldora, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-853 | Rowan, IA | Landline | Frontier Communications Of Iowa |
| 641-854 | Qwest Corporation | Landline | Mason City |
| 641-856 | Centerville, IA | Landline | Windstream Iowa Communications |
| 641-857 | Dumont, IA | Landline | Dumont Telephone Co. |
| 641-858 | Eldora, IA | Landline | Heart Of Iowa Communications Cooperative |
| 641-860 | Britt, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-861 | Pella, IA | Wireless | Iowa Wireless Services, Lp |
| 641-862 | Chariton, IA | Landline | Windstream Iowa Communications |
| 641-863 | Britt, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-864 | Hubbard, IA | Landline | Hubbard Cooperative Telephone Association |
| 641-866 | Latimer, IA | Landline | Frontier Communications Of Iowa |
| 641-868 | Steamboat Rock, IA | Landline | Heart Of Iowa Communications Cooperative |
| 641-869 | Wellsburg, IA | Landline | Windstream Iowa Communications - Systems |
| 641-870 | Corydon, IA | Wireless | Iowa Rsa 2 Limited Partnership DBA Chat Mobility |
| 641-871 | Knoxville, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-872 | Corydon, IA | Landline | South Central Communications |
| 641-873 | Allerton, IA | Landline | Grand River Mutual Telephone Co. |
| 641-874 | Promise City, IA | Landline | Windstream Iowa Communications |
| 641-876 | Lineville, IA | Landline | Grand River Mutual Telephone Co. |
| 641-877 | Humeston, IA | Landline | Windstream Iowa Communications |
| 641-881 | Latimer, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-887 | Sully, IA | Landline | Mcc Telephony Of Iowa |
| 641-888 | Grinnell, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-891 | Knoxville, IA | Wireless | United States Cellular Corp. - Iowa |
| 641-892 | Sheffield, IA | Landline | Frontier Communications Of Iowa |
| 641-894 | Aredale, IA | Landline | Rockwell Cooperative Telephone Association |
| 641-895 | Centerville, IA | Wireless | United States Cellular Corp. - Iowa |
| 641-896 | Hanlontown, IA | Landline | Winnebago Coop. Telephone Assn. - Iowa |
| 641-897 | Corydon, IA | Landline | Grand River Mutual Telephone Co. |
| 641-898 | Seymour, IA | Landline | Windstream Iowa Communications |
| 641-903 | Mason City, IA | Landline | Iowa Wireless Services, Lp |
| 641-909 | Lake Mills, IA | Wireless | Iowa Wireless Services, Lp |
| 641-919 | Fairfield, IA | Wireless | United States Cellular Corp. - Iowa |
| 641-920 | Steamboat Rock, IA | Landline | Heart Of Iowa Communications Cooperative |
| 641-922 | Conrad, IA | Landline | Heart Of Iowa Communications Cooperative |
| 641-923 | Garner, IA | Landline | Qwest Corporation |
| 641-924 | Garner, IA | Landline | Level 3 Communications |
| 641-925 | Garner, IA | Landline | Communications 1 Network |
| 641-926 | Woden, IA | Landline | Winnebago Coop. Telephone Assn. - Iowa |
| 641-931 | Albia, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-932 | Albia, IA | Landline | Windstream Iowa Communications - Systems |
| 641-933 | Fremont, IA | Landline | Windstream Iowa Communications - Systems |
| 641-935 | Chillicothe, IA | Landline | Windstream Iowa Communications |
| 641-936 | Douds, IA | Landline | Windstream Iowa Communications |
| 641-937 | Agency, IA | Landline | Windstream Iowa Communications |
| 641-938 | Blakesburg, IA | Landline | Windstream Iowa Communications |
| 641-939 | Eldora, IA | Landline | Heart Of Iowa Communications Cooperative |
| 641-942 | Milo, IA | Landline | Windstream Iowa Communications |
| 641-944 | Bussey, IA | Landline | Windstream Iowa Communications |
| 641-946 | Lovilia, IA | Landline | Windstream Iowa Communications |
| 641-949 | Harvey, IA | Landline | Windstream Iowa Communications |
| 641-954 | Ottumwa, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-969 | Eddyville, IA | Landline | Windstream Iowa Communications - Systems |
| 641-980 | Ottumwa, IA | Wireless | Cellco Partnership DBA Verizon Wireless |
| 641-983 | Little Cedar, IA | Landline | Farmers Telephone Co. |
| 641-985 | Riceville, IA | Landline | Farmers Telephone Co. |
| 641-990 | Grinnell, IA | Wireless | United States Cellular Corp. - Iowa |
| 641-992 | Little Cedar, IA | Landline | Farmers Telephone Co. |
| 641-995 | Swaledale, IA | Landline | Frontier Communications Of Iowa |
| 641-998 | Thornton, IA | Landline | Frontier Communications Of Iowa |