All assignees
456 prefixes in 636 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 636-200 | MANCHESTER | 093F | — | Yes |
| 636-201 | WARRENTON | 6534 | 2020-08-17 | Yes |
| 636-202 | WARRENTON | 7432 | 2018-09-18 | Yes |
| 636-203 | FENTON | 7432 | — | Yes |
| 636-204 | WARRENTON | 093F | 2021-06-17 | Yes |
| 636-205 | WINFIELD | 4932 | 2002-08-16 | Yes |
| 636-206 | ST CHARLES | 516C | 2014-03-28 | Yes |
| 636-207 | MANCHESTER | 9533 | — | — |
| 636-208 | FSSCRSTLCY | 6534 | 2002-10-23 | Yes |
| 636-209 | FSSCRSTLCY | 5814 | — | Yes |
| 636-210 | UNION | 6534 | 2020-09-29 | Yes |
| 636-211 | XXXXXXXXXX | MULT | — | — |
| 636-212 | MAXVILLE | 5814 | 2002-10-28 | Yes |
| 636-213 | WARRENTON | 6529 | 2022-01-11 | Yes |
| 636-214 | CHESTERFLD | 6529 | 2022-01-11 | Yes |
| 636-215 | MAXVILLE | 5814 | 2016-01-07 | Yes |
| 636-216 | CHESTERFLD | 093F | — | Yes |
| 636-217 | — | — | ||
| 636-218 | MAXVILLE | 6534 | 2021-05-26 | Yes |
| 636-219 | ST CHARLES | 6529 | 2001-02-02 | — |
| 636-220 | MANCHESTER | 792K | — | Yes |
| 636-221 | WASHINGTON | 9533 | 2002-05-14 | Yes |
| 636-222 | CEDAR HILL | 5814 | 2002-10-28 | Yes |
| 636-223 | IMPERIAL | 792K | 2002-01-29 | Yes |
| 636-224 | HERCUMPVLY | 829J | — | Yes |
| 636-225 | VALLEYPARK | 9533 | — | — |
| 636-226 | VALLEYPARK | 9533 | — | Yes |
| 636-227 | MANCHESTER | 9533 | — | — |
| 636-228 | AUGUSTA | 9787 | — | Yes |
| 636-229 | HARVESTER | 7432 | — | Yes |
| 636-230 | MANCHESTER | 9533 | — | — |
| 636-231 | WASHINGTON | 829J | — | Yes |
| 636-232 | FSSCRSTLCY | 4932 | 2002-04-09 | Yes |
| 636-233 | ST CHARLES | 5814 | 2001-11-06 | Yes |
| 636-234 | UNION | 4932 | 2002-04-09 | Yes |
| 636-235 | WARRENTON | 4932 | 2002-04-09 | Yes |
| 636-236 | CHESTERFLD | 6529 | 2001-05-10 | Yes |
| 636-237 | CHESTERFLD | 7432 | — | Yes |
| 636-238 | MANCHESTER | 7432 | — | Yes |
| 636-239 | WASHINGTON | 9533 | — | — |
| 636-240 | OFALLON | 9787 | — | — |
| 636-241 | WASHINGTON | 5814 | 2022-08-03 | Yes |
| 636-242 | MARTHASVL | 9787 | 2006-10-12 | Yes |
| 636-243 | DE SOTO | 4932 | 2002-04-09 | Yes |
| 636-244 | HARVESTER | 792K | 2001-08-08 | Yes |
| 636-245 | MAXVILLE | 6534 | 2020-09-21 | Yes |
| 636-246 | ST CHARLES | 093F | — | Yes |
| 636-247 | CHESTERFLD | 9533 | 2002-05-16 | — |
| 636-248 | ST PETERS | 5814 | — | — |
| 636-249 | UNION | 5562 | 2014-07-03 | Yes |
| 636-250 | ORCHARDFRM | 1927 | — | Yes |
| 636-251 | FORISTELL | 5814 | — | Yes |
| 636-252 | CHESTERFLD | 6529 | 2021-06-29 | Yes |
| 636-253 | HIGH RIDGE | 6529 | 2001-05-07 | Yes |
| 636-254 | MANCHESTER | 5814 | 2024-02-23 | Yes |
| 636-255 | ST CHARLES | 9533 | — | Yes |
| 636-256 | MANCHESTER | 9533 | — | — |
| 636-257 | PACIFIC | 9533 | — | Yes |
| 636-258 | ORCHARDFRM | 1927 | — | Yes |
| 636-259 | GRAYSUMMIT | 6529 | 2001-05-07 | Yes |
| 636-260 | ST CHARLES | 093F | 2024-02-26 | Yes |
| 636-261 | HARVESTER | 9533 | 2003-04-14 | Yes |
| 636-262 | CHESTERFLD | 6529 | — | Yes |
| 636-263 | HARVESTER | 7421 | 2001-10-18 | Yes |
| 636-264 | WINFIELD | 4932 | 2002-05-16 | Yes |
| 636-265 | DARDENNE | 792K | 2001-08-08 | Yes |
| 636-266 | WASHINGTON | 4932 | 2002-02-28 | Yes |
| 636-267 | ANTONIA | 093F | 2024-02-01 | Yes |
| 636-268 | CHESTERFLD | 093F | 2024-03-21 | Yes |
| 636-269 | MAXVILLE | 093F | 2024-03-21 | Yes |
| 636-270 | WARE | 093F | 2021-03-11 | Yes |
| 636-271 | PACIFIC | 9533 | — | Yes |
| 636-272 | OFALLON | 9787 | — | — |
| 636-273 | POND | 9533 | — | Yes |
| 636-274 | CEDAR HILL | 9533 | — | Yes |
| 636-275 | MAXVILLE | 5814 | 2015-02-11 | Yes |
| 636-276 | ST CLAIR | 093F | 2024-06-12 | Yes |
| 636-277 | ST CHARLES | 225F | 2010-03-08 | Yes |
| 636-278 | ST PETERS | 9787 | — | Yes |
| 636-279 | ST PETERS | 9787 | — | Yes |
| 636-280 | EUREKA | 093F | 2021-03-11 | Yes |
| 636-281 | OFALLON | 9787 | — | Yes |
| 636-282 | MAXVILLE | 9533 | — | Yes |
| 636-283 | WASHINGTON | 7218 | 2007-06-06 | Yes |
| 636-284 | HARVESTER | 6534 | 2002-05-15 | Yes |
| 636-285 | CEDAR HILL | 9533 | — | Yes |
| 636-286 | UNION | 6534 | 2024-12-17 | Yes |
| 636-287 | MAXVILLE | 9533 | — | Yes |
| 636-288 | ST CHARLES | 6534 | — | — |
| 636-289 | HAWK POINT | 993E | 2022-02-01 | Yes |
| 636-290 | TROY | 6529 | 2002-08-09 | Yes |
| 636-291 | WASHINGTON | 6534 | 2025-09-19 | Yes |
| 636-292 | CHESTERFLD | 7218 | 2018-04-26 | Yes |
| 636-293 | OFALLON | 6529 | 2002-08-09 | Yes |
| 636-294 | OFALLON | 792K | 2001-08-08 | — |
| 636-295 | TROY | 5814 | — | Yes |
| 636-296 | MAXVILLE | 9533 | — | — |
| 636-297 | WARRENTON | 5814 | — | Yes |
| 636-298 | MANCHESTER | 6534 | 2025-09-19 | Yes |
| 636-299 | CHESTERFLD | 6529 | — | 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.