All assignees
797 prefixes in 937 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 937-200 | FAIRBORN | 7532 | 2016-12-19 | Yes |
| 937-201 | DAYTON | 6630 | — | — |
| 937-202 | HOLLANSBG | 4863 | 2002-06-25 | Yes |
| 937-203 | DAYTON | 6025 | 2001-05-15 | Yes |
| 937-204 | DAYTON | 6534 | 2012-03-12 | Yes |
| 937-205 | HILLSBORO | 6025 | — | — |
| 937-206 | SPRINGFLD | 6025 | — | — |
| 937-207 | SPRINGFLD | 6025 | — | — |
| 937-208 | DAYTON | 9321 | — | — |
| 937-209 | MARYSVILLE | 6701 | — | Yes |
| 937-210 | BELLEFNTAN | 6534 | — | Yes |
| 937-211 | XXXXXXXXXX | MULT | — | — |
| 937-212 | DAYTON | 6534 | — | Yes |
| 937-213 | GEORGETOWN | 6534 | — | Yes |
| 937-214 | PIQUA | 6534 | — | Yes |
| 937-215 | SPRINGFLD | 6534 | — | — |
| 937-216 | TROY | 6534 | — | — |
| 937-217 | WEST UNION | 6534 | — | Yes |
| 937-218 | WILMINGTON | 6534 | — | Yes |
| 937-219 | DAYTON | 6529 | — | Yes |
| 937-220 | DAYTON | 9321 | — | — |
| 937-221 | DAYTON | 9321 | — | Yes |
| 937-222 | DAYTON | 9321 | — | — |
| 937-223 | DAYTON | 9321 | — | — |
| 937-224 | DAYTON | 9321 | — | — |
| 937-225 | DAYTON | 9321 | — | Yes |
| 937-226 | DAYTON | 9321 | — | Yes |
| 937-227 | DAYTON | 9321 | — | — |
| 937-228 | DAYTON | 9321 | — | Yes |
| 937-229 | DAYTON | 9321 | — | Yes |
| 937-230 | MILFORDCTR | 464C | 2016-04-07 | Yes |
| 937-231 | DAYTON | 6534 | — | — |
| 937-232 | DAYTON | 6534 | — | — |
| 937-233 | DAYTON | 9321 | — | — |
| 937-234 | DAYTON | 9321 | — | Yes |
| 937-235 | DAYTON | 9321 | — | — |
| 937-236 | DAYTON | 9321 | — | — |
| 937-237 | DAYTON | 9321 | — | — |
| 937-238 | DAYTON | 6534 | — | — |
| 937-239 | DAYTON | 6534 | — | — |
| 937-240 | BELLE CTR | 001F | 2011-10-21 | Yes |
| 937-241 | DAYTON | 6529 | — | Yes |
| 937-242 | DAYTON | 7532 | — | Yes |
| 937-243 | MARYSVILLE | 6025 | — | — |
| 937-244 | SPRINGFLD | 6534 | — | Yes |
| 937-245 | DAYTON | 6534 | — | Yes |
| 937-246 | RAYMOND | 0661 | — | Yes |
| 937-247 | MSBGWCRLTN | 309B | 2002-09-11 | Yes |
| 937-248 | TROTWOOD | 5562 | — | Yes |
| 937-249 | ABERDEEN | 516C | 2009-12-08 | Yes |
| 937-250 | DAYTON | 309B | 2017-05-03 | Yes |
| 937-251 | DAYTON | 6529 | — | Yes |
| 937-252 | DAYTON | 9321 | — | — |
| 937-253 | DAYTON | 9321 | — | — |
| 937-254 | DAYTON | 9321 | — | — |
| 937-255 | DAYTON | 7460 | — | — |
| 937-256 | DAYTON | 9321 | — | — |
| 937-257 | DAYTON | 7460 | — | — |
| 937-258 | DAYTON | 9321 | — | — |
| 937-259 | DAYTON | 9321 | — | Yes |
| 937-260 | DAYTON | 6534 | — | Yes |
| 937-262 | DAYTON | 9321 | — | Yes |
| 937-263 | DAYTON | 9321 | — | — |
| 937-264 | VANDALIA | 9321 | — | Yes |
| 937-265 | PITCHIN | 9321 | — | Yes |
| 937-266 | DAYTON | 6534 | — | — |
| 937-267 | DAYTON | 9321 | — | Yes |
| 937-268 | DAYTON | 9321 | — | — |
| 937-269 | DAYTON | 7532 | — | Yes |
| 937-270 | DAYTON | 6534 | 2001-10-30 | — |
| 937-271 | DAYTON | 6025 | — | — |
| 937-272 | DAYTON | 6025 | — | — |
| 937-273 | ELDORADO | 0661 | — | Yes |
| 937-274 | DAYTON | 9321 | — | — |
| 937-275 | DAYTON | 9321 | — | — |
| 937-276 | DAYTON | 9321 | — | — |
| 937-277 | DAYTON | 9321 | — | — |
| 937-278 | DAYTON | 9321 | — | — |
| 937-279 | DAYTON | 9321 | — | Yes |
| 937-280 | VANDALIA | 829J | — | Yes |
| 937-281 | DAYTON | 309B | — | — |
| 937-282 | DAYTON | 6630 | — | — |
| 937-283 | WILMINGTON | 0615 | — | Yes |
| 937-284 | SPRINGFLD | 7836 | — | Yes |
| 937-285 | DAYTON | 9321 | — | Yes |
| 937-286 | DAYTON | 6534 | — | — |
| 937-287 | DAYTON | 6025 | — | — |
| 937-288 | DANVILLE | 9321 | — | Yes |
| 937-289 | CLARKSVL | 0615 | — | Yes |
| 937-290 | DAYTON | 9321 | — | — |
| 937-291 | DAYTON | 9321 | — | — |
| 937-292 | BELLEFNTAN | 0661 | — | Yes |
| 937-293 | DAYTON | 9321 | — | — |
| 937-294 | DAYTON | 9321 | — | — |
| 937-295 | FT LORAMIE | 0661 | — | — |
| 937-296 | DAYTON | 9321 | — | Yes |
| 937-297 | DAYTON | 9321 | — | — |
| 937-298 | DAYTON | 9321 | — | — |
| 937-299 | DAYTON | 9321 | — | — |
| 937-300 | EATON | 6529 | 2017-06-01 | 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.