All assignees
719 prefixes in 620 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 620-300 | GREAT BEND | 6874 | 2010-12-21 | Yes |
| 620-301 | WINFIELD | 318J | 2017-11-02 | Yes |
| 620-302 | BUFFALO | 2240 | 2014-04-07 | Yes |
| 620-303 | HARTFORD | 986E | 2019-03-26 | Yes |
| 620-304 | BAXTER SPG | 5562 | — | Yes |
| 620-305 | CHANUTE | 6267 | — | Yes |
| 620-306 | CANEY | 6534 | 2001-11-09 | Yes |
| 620-307 | ARKANSASCY | 2240 | — | Yes |
| 620-308 | PITTSBURG | 318J | — | Yes |
| 620-309 | LIBERAL | 9533 | — | Yes |
| 620-310 | ABBYVLPLVN | 205F | 2019-08-08 | Yes |
| 620-311 | XXXXXXXXXX | MULT | — | — |
| 620-312 | YATES CTR | 018H | 2016-01-29 | Yes |
| 620-313 | LIBERTY | 6532 | 2005-09-29 | Yes |
| 620-314 | HUTCHINSON | 6534 | 2009-07-24 | Yes |
| 620-315 | GARDENCITY | 6534 | — | Yes |
| 620-317 | SCAMMON | 205F | 2017-04-28 | Yes |
| 620-318 | CUNNINGHAM | 318J | — | Yes |
| 620-319 | SEDAN | 2240 | — | Yes |
| 620-320 | MACKSVILLE | 787D | 2008-09-30 | Yes |
| 620-321 | BUSHTON | 6532 | 2008-03-19 | Yes |
| 620-322 | ANTHONY | 516C | 2010-01-22 | Yes |
| 620-323 | LINCOLNVL | 6532 | 2008-04-14 | Yes |
| 620-324 | LEWIS | 1777 | — | Yes |
| 620-325 | NEODESHA | 9533 | — | Yes |
| 620-326 | WELLINGTON | 9533 | — | Yes |
| 620-327 | HESSTON | 1810 | — | Yes |
| 620-328 | MOUND VLY | 1842 | — | Yes |
| 620-329 | ELK FALLS | 1833 | — | Yes |
| 620-330 | INDEPNDNCE | 9533 | — | Yes |
| 620-331 | INDEPNDNCE | 9533 | — | — |
| 620-332 | INDEPNDNCE | 9533 | — | Yes |
| 620-333 | PARSONS | 6534 | — | Yes |
| 620-334 | GALVA | 6532 | 2008-03-19 | Yes |
| 620-335 | INGALLS | 1841 | — | Yes |
| 620-336 | CHERRYVALE | 9533 | — | Yes |
| 620-337 | ATTICA | 516C | 2011-01-21 | Yes |
| 620-338 | DODGE CITY | 9533 | — | — |
| 620-339 | DODGE CITY | 9533 | — | Yes |
| 620-340 | EMPORIA | 9533 | — | — |
| 620-341 | EMPORIA | 9533 | — | — |
| 620-342 | EMPORIA | 9533 | — | — |
| 620-343 | EMPORIA | 9533 | — | — |
| 620-344 | EMPORIA | 6267 | — | Yes |
| 620-345 | MOUNDRIDGE | 1808 | — | — |
| 620-346 | ELGIN | 2030 | — | — |
| 620-347 | ARMA | 1818 | — | — |
| 620-348 | MACKSVILLE | 1810 | — | — |
| 620-349 | GREENSBURG | 205F | — | Yes |
| 620-350 | CANTON | 906E | 2008-06-27 | Yes |
| 620-351 | JOHNSON | 401D | 2006-12-19 | Yes |
| 620-352 | IUKA | 6532 | 2008-03-19 | Yes |
| 620-353 | ULYSSES | 1817 | — | — |
| 620-354 | WALNUT | 1818 | — | — |
| 620-355 | LAKIN | 1817 | — | Yes |
| 620-356 | ULYSSES | 1817 | — | — |
| 620-357 | JETMORE | 1835 | — | — |
| 620-358 | GRENOLA | 1833 | — | Yes |
| 620-359 | WELLINGTON | 9533 | — | Yes |
| 620-360 | ELKHART | 6532 | — | Yes |
| 620-361 | ALDEN | 122D | 2009-03-12 | Yes |
| 620-362 | FARLINGTON | 1818 | — | — |
| 620-363 | IOLA | 6267 | — | Yes |
| 620-364 | BURLINGTON | 1842 | — | Yes |
| 620-365 | IOLA | 9533 | — | — |
| 620-366 | EMPORIA | 6267 | — | Yes |
| 620-367 | GOESSEL | 1808 | — | — |
| 620-368 | HEPLER | 1818 | — | — |
| 620-369 | FORD | 1841 | — | Yes |
| 620-370 | LIBERAL | 6534 | — | — |
| 620-371 | DODGE CITY | 318J | — | Yes |
| 620-372 | COOLIDGE | 1817 | — | — |
| 620-373 | KENDALL | 1817 | — | — |
| 620-374 | HOWARD | 9533 | — | Yes |
| 620-375 | LEOTI | 1835 | — | Yes |
| 620-376 | TRIBUNE | 1835 | — | Yes |
| 620-377 | ST JOHN | 122D | 2005-09-14 | Yes |
| 620-378 | FREDONIA | 1842 | — | — |
| 620-379 | MARIENTHAL | 1835 | — | — |
| 620-380 | IOLA | 9533 | — | Yes |
| 620-381 | MARION | 6532 | — | Yes |
| 620-382 | MARION | 9533 | — | Yes |
| 620-383 | GALENA | 593K | 2010-08-06 | Yes |
| 620-384 | SYRACUSE | 1817 | — | Yes |
| 620-385 | SPEARVILLE | 1841 | — | — |
| 620-386 | MOUNDRIDGE | 6532 | — | Yes |
| 620-387 | BAXTER SPG | 6532 | 2008-11-26 | Yes |
| 620-388 | PRATT | 6532 | 2002-10-17 | — |
| 620-389 | CRESTLINE | 1818 | — | — |
| 620-390 | DODGE CITY | 6534 | 2009-12-16 | Yes |
| 620-391 | LIBERAL | 6534 | — | Yes |
| 620-392 | HARTFORD | 9533 | — | Yes |
| 620-393 | JETMORE | 401D | 2006-02-07 | Yes |
| 620-394 | ATLANTA | 1833 | — | Yes |
| 620-395 | BRAZILTON | 1818 | — | — |
| 620-396 | WEIR CITY | 1818 | — | — |
| 620-397 | DIGHTON | 1827 | — | Yes |
| 620-398 | HEALY | 1827 | — | — |
| 620-399 | WELLINGTON | 9533 | — | Yes |
| 620-400 | GREAT BEND | 9533 | 2011-01-13 | 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.