All assignees
579 prefixes in 319 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 319-200 | CEDAR RPDS | 695G | 2012-02-10 | — |
| 319-201 | MTPLEASANT | 6266 | — | Yes |
| 319-202 | CEDAR RPDS | 6529 | 2004-05-13 | — |
| 319-203 | SWISHER | 593K | 2010-03-19 | Yes |
| 319-204 | MTPLEASANT | 198H | 2014-08-01 | Yes |
| 319-205 | MT VERNON | 508J | 2017-05-23 | Yes |
| 319-206 | CEDAR RPDS | 624H | 2017-08-14 | Yes |
| 319-207 | MORLEY | 9877 | 2018-06-28 | Yes |
| 319-208 | BURLINGTON | 829J | 2003-03-25 | Yes |
| 319-209 | BURLINGTON | 6529 | 2001-04-10 | Yes |
| 319-210 | CEDAR RPDS | 6529 | 2002-02-12 | Yes |
| 319-211 | XXXXXXXXXX | MULT | — | — |
| 319-212 | COLUMBSJCT | 6570 | 2003-04-10 | Yes |
| 319-213 | CEDAR RPDS | 7229 | 2004-07-14 | Yes |
| 319-214 | VINTON | 593K | 2004-11-24 | Yes |
| 319-215 | WATERLOO | 6266 | 2004-01-19 | Yes |
| 319-216 | MARTELLE | 9877 | 2018-06-29 | Yes |
| 319-217 | MTPLEASANT | 6570 | 2003-02-06 | Yes |
| 319-218 | OLIN | 9877 | 2018-06-29 | Yes |
| 319-219 | MTPLEASANT | 2842 | — | Yes |
| 319-220 | CENTRAL CY | 1167 | 2015-06-25 | Yes |
| 319-221 | CEDAR RPDS | 9631 | — | — |
| 319-222 | CEDARFALLS | 9631 | — | Yes |
| 319-223 | NEWHALL | 1298 | — | — |
| 319-224 | TROY MILLS | 1167 | — | Yes |
| 319-225 | AMANA | 593K | 2006-11-14 | Yes |
| 319-226 | WATERLOO | 9631 | — | — |
| 319-227 | NORWAY | 1298 | — | — |
| 319-228 | VAN HORNE | 1320 | — | — |
| 319-229 | WATERLOO | 6534 | 2014-08-08 | Yes |
| 319-230 | WATERLOO | 6570 | — | — |
| 319-231 | WATERLOO | 6266 | — | Yes |
| 319-232 | WATERLOO | 9631 | — | — |
| 319-233 | WATERLOO | 9631 | — | — |
| 319-234 | WATERLOO | 9631 | — | — |
| 319-235 | WATERLOO | 9631 | — | — |
| 319-236 | WATERLOO | 9631 | — | — |
| 319-237 | BURLINGTON | 2842 | 2002-03-07 | Yes |
| 319-238 | OELWEIN | 221F | 2004-02-04 | Yes |
| 319-239 | WATERLOO | 6266 | — | Yes |
| 319-240 | WATERLOO | 6266 | — | Yes |
| 319-241 | CEDAR RPDS | 6529 | 2002-03-07 | — |
| 319-242 | CEDARFALLS | 7421 | 2002-03-28 | Yes |
| 319-243 | CEDARFALLS | 9631 | 2002-04-22 | Yes |
| 319-244 | ELY | 593K | 2006-11-14 | Yes |
| 319-245 | GRUNDY CTR | 1170 | 2015-06-25 | Yes |
| 319-246 | FT MADISON | 221F | — | Yes |
| 319-247 | CEDAR RPDS | 9631 | — | — |
| 319-248 | IOWA CITY | 829J | — | — |
| 319-249 | CEDAR RPDS | 508J | 2017-02-24 | Yes |
| 319-250 | FT MADISON | 221F | 2009-10-26 | Yes |
| 319-251 | ANAMOSA | 8344 | 2017-04-19 | Yes |
| 319-252 | WATERLOO | 6534 | 2016-06-29 | Yes |
| 319-253 | HILLSBORO | 1178 | — | Yes |
| 319-254 | OLDS | 1178 | — | Yes |
| 319-255 | COLUMBSJCT | 2842 | 2002-04-16 | Yes |
| 319-256 | WAYLAND | 1166 | — | — |
| 319-257 | WINFIELD | 1178 | — | Yes |
| 319-258 | SALEM | 1178 | — | Yes |
| 319-259 | IOWA CITY | 073H | 2017-06-29 | Yes |
| 319-260 | CEDARFALLS | 695G | 2015-10-12 | — |
| 319-261 | CEDAR RPDS | 829J | — | Yes |
| 319-262 | KALONA | 593K | 2006-11-29 | Yes |
| 319-263 | CEDAR RPDS | 9631 | 2006-06-12 | Yes |
| 319-264 | OELWEIN | 6266 | 2017-08-07 | Yes |
| 319-265 | CEDAR RPDS | 829J | — | Yes |
| 319-266 | CEDARFALLS | 9631 | — | — |
| 319-267 | ALLISON | 1152 | — | — |
| 319-268 | CEDARFALLS | 9631 | — | — |
| 319-269 | WATERLOO | 6266 | — | Yes |
| 319-270 | CEDAR RPDS | 6570 | — | — |
| 319-271 | INDEPNDNCE | 6266 | 2017-01-18 | Yes |
| 319-272 | WATERLOO | 9631 | — | — |
| 319-273 | CEDARFALLS | 9631 | — | — |
| 319-274 | WATERLOO | 9631 | — | Yes |
| 319-275 | FREDERIKA | 1115 | — | — |
| 319-276 | PLAINFIELD | 1115 | — | — |
| 319-277 | CEDARFALLS | 9631 | — | — |
| 319-278 | CLARKSVL | 1115 | — | — |
| 319-279 | READLYN | 1278 | — | — |
| 319-280 | KEOSAUQUA | 6529 | 2018-07-23 | Yes |
| 319-281 | HUDSON | 508J | 2017-05-23 | Yes |
| 319-282 | NO ENGLISH | 593K | 2006-11-14 | Yes |
| 319-283 | OELWEIN | 9631 | — | Yes |
| 319-284 | OELWEIN | 985E | — | Yes |
| 319-285 | SHARON CTR | 593K | 2010-03-19 | Yes |
| 319-286 | CEDAR RPDS | 9631 | — | — |
| 319-287 | WATERLOO | 9631 | — | — |
| 319-288 | KEOSAUQUA | 6529 | 2005-11-11 | Yes |
| 319-289 | CEDAR RPDS | 197D | 2018-06-04 | Yes |
| 319-290 | WATERLOO | 6570 | — | — |
| 319-291 | WATERLOO | 9631 | — | — |
| 319-292 | WATERLOO | 9631 | — | — |
| 319-293 | KEOSAUQUA | 1319 | — | — |
| 319-294 | CEDAR RPDS | 9631 | — | — |
| 319-295 | CEDAR RPDS | 9631 | — | — |
| 319-296 | WATERLOO | 9631 | — | Yes |
| 319-297 | CEDAR RPDS | 9631 | — | — |
| 319-298 | CEDAR RPDS | 9631 | — | — |
| 319-299 | BELLEPLAIN | 1167 | 2016-07-28 | Yes |
These are initial assignees from NANPA CO-code records — because of number portability, the current serving carrier of individual numbers may differ. Bulk export requires a membership.