All assignees
656 prefixes in 712 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 712-200 | ALTA | 3097 | — | — |
| 712-201 | UNDERWOOD | 221F | 2015-12-01 | Yes |
| 712-202 | SIOUX CITY | 829J | 2001-03-07 | Yes |
| 712-203 | SIOUX CITY | 6529 | 2001-04-09 | Yes |
| 712-204 | SIOUX CITY | 6529 | — | Yes |
| 712-205 | AUDUBON | 1170 | 2016-07-25 | Yes |
| 712-206 | ARMSTRONG | 1167 | 2018-02-01 | Yes |
| 712-207 | SHELBY | 774B | 2004-05-25 | Yes |
| 712-208 | MAPLETON | 6534 | 2003-03-31 | Yes |
| 712-209 | ESTHERVL | 6570 | 2001-10-26 | Yes |
| 712-210 | LIDDERDALE | 6266 | 2001-01-24 | Yes |
| 712-211 | XXXXXXXXXX | MULT | — | — |
| 712-212 | SIOUX CITY | 7229 | 2004-07-14 | Yes |
| 712-213 | STORM LAKE | 828B | — | — |
| 712-214 | ASHTON | 221F | 2018-08-27 | Yes |
| 712-215 | SHENANDOAH | 6266 | 2003-02-21 | Yes |
| 712-216 | LOGAN | 6570 | 2003-02-03 | Yes |
| 712-217 | CARTERLAKE | 221F | 2019-08-29 | Yes |
| 712-218 | BATTLE CRK | 221F | 2018-08-27 | Yes |
| 712-219 | ONAWA | 6534 | 2003-03-31 | Yes |
| 712-220 | CARROLL | 593K | 2010-02-16 | Yes |
| 712-221 | CHEROKEE | 6570 | — | Yes |
| 712-222 | SIOUX CITY | 828B | 2003-03-28 | — |
| 712-223 | SIOUX CITY | 6534 | — | Yes |
| 712-224 | SIOUX CITY | 7021 | — | — |
| 712-225 | CHEROKEE | 9631 | — | Yes |
| 712-226 | SIOUX CITY | 7021 | — | — |
| 712-227 | CRESCENT | 318J | — | Yes |
| 712-228 | SERGENTBLF | 1260 | 2002-09-04 | — |
| 712-229 | CHEROKEE | 6570 | — | Yes |
| 712-230 | HOSPERS | 6534 | — | Yes |
| 712-231 | HOSPERS | 6534 | — | Yes |
| 712-232 | SPENCER | 444G | 2013-08-02 | Yes |
| 712-233 | SIOUX CITY | 9631 | — | — |
| 712-234 | SIOUX CITY | 9631 | — | — |
| 712-235 | HARLAN | 5395 | 2001-03-20 | — |
| 712-236 | HARLAN | 5417 | 2001-03-28 | — |
| 712-237 | SERGENTBLF | 1260 | — | — |
| 712-238 | SIOUX CITY | 828B | 2002-06-28 | — |
| 712-239 | SIOUX CITY | 9631 | — | — |
| 712-240 | SPENCER | 6266 | — | Yes |
| 712-241 | — | — | ||
| 712-242 | COUNCILBLF | 7816 | — | Yes |
| 712-243 | ATLANTIC | 9631 | — | Yes |
| 712-244 | SIOUX CITY | 828B | — | — |
| 712-245 | SIOUX CITY | 6534 | 2024-02-09 | Yes |
| 712-246 | SHENANDOAH | 9631 | — | Yes |
| 712-247 | SERGENTBLF | 1260 | 2001-07-06 | — |
| 712-248 | CARTERLAKE | 829J | 2001-04-03 | Yes |
| 712-249 | ATLANTIC | 6570 | — | — |
| 712-250 | ATLANTIC | 6266 | — | Yes |
| 712-251 | SIOUX CITY | 6570 | — | — |
| 712-252 | SIOUX CITY | 9631 | — | — |
| 712-253 | SIOUX CITY | 6570 | — | — |
| 712-254 | ATLANTIC | 6266 | — | Yes |
| 712-255 | SIOUX CITY | 9631 | — | — |
| 712-256 | COUNCILBLF | 318J | — | Yes |
| 712-257 | SERGENTBLF | 1260 | — | — |
| 712-258 | SIOUX CITY | 9631 | — | — |
| 712-259 | SIOUX CITY | 6534 | — | — |
| 712-260 | SPENCER | 6570 | — | — |
| 712-261 | CHEROKEE | 6266 | — | Yes |
| 712-262 | SPENCER | 9631 | — | — |
| 712-263 | DENISON | 1127 | — | — |
| 712-264 | SPENCER | 9631 | — | Yes |
| 712-265 | DENISON | 1127 | — | Yes |
| 712-266 | SIOUX CITY | 9631 | — | Yes |
| 712-267 | DENISON | 6570 | — | Yes |
| 712-268 | EXIRA | 1170 | — | Yes |
| 712-269 | DENISON | 6570 | — | — |
| 712-270 | SPENCER | 6266 | — | Yes |
| 712-271 | SERGENTBLF | 1260 | — | — |
| 712-272 | NEWELL | 1178 | — | Yes |
| 712-273 | EARLY | 1127 | — | — |
| 712-274 | SIOUX CITY | 9631 | — | Yes |
| 712-275 | SCHALLER | 1291 | — | — |
| 712-276 | SIOUX CITY | 9631 | — | — |
| 712-277 | SIOUX CITY | 9631 | — | — |
| 712-278 | IRETON | 1109 | — | Yes |
| 712-279 | SIOUX CITY | 9631 | — | — |
| 712-280 | HARLAN | 1170 | 2018-01-31 | Yes |
| 712-281 | SIOUX CITY | 6534 | — | Yes |
| 712-282 | GALVA | 1291 | — | — |
| 712-283 | SIOUX RPD | 9631 | — | Yes |
| 712-284 | ALTA | 9631 | — | Yes |
| 712-285 | SERGENTBLF | 1260 | 2003-02-21 | — |
| 712-286 | REMBRANDT | 1178 | — | Yes |
| 712-287 | NO HOPKINS | 1811 | — | Yes |
| 712-288 | FONDA | 1178 | — | Yes |
| 712-289 | MARATHON | 1178 | — | Yes |
| 712-290 | ROCKWELLCY | 1167 | 2015-06-25 | Yes |
| 712-291 | STORM LAKE | 6570 | — | Yes |
| 712-292 | CARROLL | 6570 | — | Yes |
| 712-293 | SIOUX CITY | 9631 | — | Yes |
| 712-294 | SIOUX CITY | 9631 | — | Yes |
| 712-295 | PETERSON | 1178 | — | Yes |
| 712-296 | LINN GROVE | 1178 | — | Yes |
| 712-297 | ROCKWELLCY | 1167 | — | Yes |
| 712-298 | EMMETSBURG | 6570 | 2002-07-17 | Yes |
| 712-299 | STORM LAKE | 6570 | — | — |
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.