All assignees
531 prefixes in 660 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 660-200 | BUTLER | 1811 | — | Yes |
| 660-201 | POLO | 793K | 2024-04-02 | Yes |
| 660-202 | MARSHALL | 6534 | 2003-04-09 | Yes |
| 660-203 | ALMA | 6155 | 2024-12-03 | Yes |
| 660-204 | SMITHTON | 4932 | 2003-11-04 | Yes |
| 660-205 | SWEET SPG | 4932 | 2003-11-04 | Yes |
| 660-206 | OTTERVILLE | 4932 | 2003-11-04 | Yes |
| 660-207 | APPLETONCY | 4932 | 2003-11-04 | Yes |
| 660-208 | BLAIRSTOWN | 4932 | 2003-11-04 | Yes |
| 660-209 | GREENRIDGE | 4932 | 2003-11-04 | Yes |
| 660-210 | URICH | 4932 | 2003-11-04 | Yes |
| 660-211 | XXXXXXXXXX | MULT | — | — |
| 660-212 | LEETON | 4932 | 2003-11-04 | Yes |
| 660-213 | LA BELLE | 8953 | — | — |
| 660-214 | CHILLICOTH | 6534 | — | Yes |
| 660-215 | MARYVILLE | 6534 | — | Yes |
| 660-216 | KIRKSVILLE | 6275 | — | Yes |
| 660-217 | COAL | 6534 | — | Yes |
| 660-218 | CHILHOWEE | 4932 | 2003-11-04 | Yes |
| 660-219 | HOUSTONIA | 4932 | 2003-11-04 | Yes |
| 660-220 | MALTA BEND | 4932 | 2003-11-04 | Yes |
| 660-221 | SEDALIA | 6701 | — | — |
| 660-222 | BYNUMVILLE | 1864 | — | — |
| 660-223 | WARSAW | 4932 | 2001-12-12 | Yes |
| 660-224 | MARYVILLE | 5814 | — | Yes |
| 660-225 | CENTERVIEW | 4932 | 2002-08-20 | Yes |
| 660-226 | NEWCAMBRIA | 1864 | — | — |
| 660-227 | BUTLER | 6701 | 2002-05-31 | Yes |
| 660-228 | MONTROSE | 4932 | 2003-11-04 | Yes |
| 660-229 | MARSHALL | 6701 | — | Yes |
| 660-230 | CALHOUN | 4932 | 2003-11-04 | Yes |
| 660-231 | DEEPWATER | 4932 | 2003-11-04 | Yes |
| 660-232 | LEXINGTON | 6701 | 2001-08-13 | Yes |
| 660-233 | KNOBNOSTER | 6701 | 2001-12-14 | Yes |
| 660-234 | KIRKSVILLE | 250A | 2003-12-11 | Yes |
| 660-235 | STANBERRY | 6534 | 2004-03-19 | Yes |
| 660-236 | MARSHALL | 9533 | 2001-05-10 | Yes |
| 660-237 | HIGGINSVL | 1865 | — | — |
| 660-238 | WARRENSBG | 6701 | 2001-06-25 | — |
| 660-239 | ATLANTA | 1864 | — | Yes |
| 660-240 | CHILLICOTH | 4932 | 2001-05-10 | Yes |
| 660-241 | MARYVILLE | 612K | 2013-11-04 | Yes |
| 660-242 | MONTROSE | 4932 | 2004-12-30 | Yes |
| 660-243 | WAVERLY | 4932 | 2003-11-07 | Yes |
| 660-244 | PURDIN | 1888 | — | — |
| 660-245 | KIRKSVILLE | 624H | 2024-12-13 | Yes |
| 660-246 | HARDIN | 4932 | 2003-11-07 | Yes |
| 660-247 | CHILLICOTH | 6534 | — | Yes |
| 660-248 | FAYETTE | 9533 | — | Yes |
| 660-249 | MALTA BEND | 093F | — | Yes |
| 660-250 | NORBORNE | 4932 | 2002-08-09 | Yes |
| 660-251 | LEXINGTON | 4932 | 2002-08-09 | Yes |
| 660-252 | TIPTON | 4932 | 2004-04-06 | Yes |
| 660-253 | ROCK PORT | 5814 | 2004-04-06 | Yes |
| 660-254 | MARYVILLE | 5814 | 2004-04-06 | — |
| 660-255 | COWGILL | 1890 | — | — |
| 660-256 | ROTHVILLE | 1885 | — | Yes |
| 660-257 | KIRKSVILLE | 839J | 2025-04-22 | Yes |
| 660-258 | BROOKFIELD | 9533 | — | Yes |
| 660-259 | LEXINGTON | 1811 | — | Yes |
| 660-260 | SOBRADDYVL | 093F | 2021-04-26 | Yes |
| 660-261 | CLIFTON HL | 1864 | — | — |
| 660-262 | WARRENSBG | 4932 | — | Yes |
| 660-263 | MOBERLY | 9533 | — | — |
| 660-264 | CALHOUN | 993E | — | Yes |
| 660-265 | MILAN | 1885 | — | Yes |
| 660-266 | HOLLIDAY | 1885 | — | Yes |
| 660-267 | AMSTERDAM | 1759 | — | — |
| 660-268 | BROOKFIELD | 9533 | — | Yes |
| 660-269 | MOBERLY | 9533 | — | Yes |
| 660-270 | CLINTON | 6701 | 2022-01-10 | Yes |
| 660-271 | BETHANY | 839J | 2025-04-22 | Yes |
| 660-272 | MENDON | 1885 | — | Yes |
| 660-273 | ARMSTRONG | 9533 | — | Yes |
| 660-274 | KING CITY | 4932 | 2004-05-13 | Yes |
| 660-275 | KAHOKA | 093F | — | Yes |
| 660-276 | MOBERLY | 6701 | 2021-06-09 | Yes |
| 660-277 | HUNTSVILLE | 1864 | — | Yes |
| 660-278 | STEFFENVL | 1914 | — | — |
| 660-279 | BLACKBURN | 4932 | 2004-12-30 | Yes |
| 660-280 | KIRKSVILLE | 5814 | 2021-10-19 | Yes |
| 660-281 | SEDALIA | 6534 | — | Yes |
| 660-282 | GORIN | 1151 | — | Yes |
| 660-283 | BLAIRSTOWN | 4932 | 2004-12-30 | Yes |
| 660-284 | BETHEL | 1914 | — | — |
| 660-285 | IONIA | 1811 | — | Yes |
| 660-286 | LAREDO | 1888 | — | — |
| 660-287 | SEDALIA | 6534 | — | Yes |
| 660-288 | KEYTESVL | 1151 | — | Yes |
| 660-289 | PARIS | 4932 | — | Yes |
| 660-290 | SMITHTON | 093F | — | Yes |
| 660-291 | MADISON | 1885 | — | Yes |
| 660-292 | MILAN | 5814 | 2006-07-13 | Yes |
| 660-293 | KEYTESVL | 7218 | — | Yes |
| 660-294 | BEVIER | 4932 | 2026-05-06 | Yes |
| 660-295 | JACKSONVL | 1864 | — | — |
| 660-296 | CLINTON | 093F | 2026-07-22 | Yes |
| 660-297 | ALBANY | 1885 | 2016-08-31 | Yes |
| 660-298 | SYRACUSE | 1811 | — | Yes |
| 660-299 | EDINA | 5814 | 2002-09-10 | 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.