All assignees
531 prefixes in 660 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 660-445 | MILAN | 1885 | — | Yes |
| 660-446 | OREGON | 1935 | — | — |
| 660-447 | EPLEASANTN | 1818 | — | — |
| 660-448 | GENTRY | 1888 | — | — |
| 660-454 | CHILHOWEE | 093F | — | Yes |
| 660-455 | MONTROSE | 093F | — | Yes |
| 660-456 | HIGBEE | 9533 | — | Yes |
| 660-457 | LANCASTER | 9533 | — | Yes |
| 660-458 | LATHAM | 1917 | — | Yes |
| 660-460 | SEDALIA | 6701 | — | Yes |
| 660-462 | LA BELLE | 1151 | — | Yes |
| 660-463 | CONCORDIA | 1151 | — | Yes |
| 660-464 | BUTLER | 5814 | — | Yes |
| 660-465 | MEMPHIS | 1931 | — | Yes |
| 660-466 | TIPTON | 093F | — | Yes |
| 660-470 | LACLEDE | 1885 | 2016-07-11 | Yes |
| 660-472 | BLACKWATER | 4932 | — | Yes |
| 660-473 | SEDALIA | 6701 | — | Yes |
| 660-474 | LEETON | 4932 | 2004-12-30 | Yes |
| 660-476 | APPLETONCY | 1811 | — | Yes |
| 660-477 | COAL | 1811 | — | Yes |
| 660-478 | EAGLEVILLE | 4932 | 2014-05-30 | Yes |
| 660-479 | WYACONDA | 1914 | — | Yes |
| 660-481 | FOR GREEN | 1864 | — | — |
| 660-483 | KING CITY | 6534 | — | Yes |
| 660-484 | STET | 1890 | — | — |
| 660-485 | SPICKARD | 1888 | — | — |
| 660-486 | ETHEL | 1864 | — | — |
| 660-488 | NOVINGER | 1931 | — | Yes |
| 660-489 | HIGH POINT | 1917 | — | Yes |
| 660-491 | MOUND CITY | 5814 | — | Yes |
| 660-492 | CLINTON | 5814 | — | Yes |
| 660-493 | WAVERLY | 1811 | — | Yes |
| 660-494 | BOONVILLE | 425J | 2019-03-28 | Yes |
| 660-498 | BLAIRSTOWN | 1811 | — | Yes |
| 660-499 | CREIGHTON | 0472 | — | Yes |
| 660-500 | ETHEL | 965H | 2020-09-02 | Yes |
| 660-511 | XXXXXXXXXX | MULT | — | — |
| 660-515 | SWEET SPG | 4932 | 2004-12-30 | Yes |
| 660-522 | BETHEL | 225F | 2014-03-20 | Yes |
| 660-525 | CLINTON | 6701 | — | Yes |
| 660-527 | GREENRIDGE | 1811 | — | Yes |
| 660-528 | MARYVILLE | 6701 | — | Yes |
| 660-529 | SLATER | 9533 | — | Yes |
| 660-530 | SEDALIA | 9533 | — | Yes |
| 660-533 | COFFEY | 1885 | — | Yes |
| 660-534 | BOSWORTH | 1864 | — | — |
| 660-535 | KING CITY | 1811 | — | Yes |
| 660-537 | BOONVILLE | 6534 | — | Yes |
| 660-538 | BLACKBURN | 1811 | — | Yes |
| 660-539 | CLINTON | 6701 | 2021-09-01 | Yes |
| 660-541 | MARYVILLE | 6534 | — | Yes |
| 660-542 | CARROLLTON | 9533 | — | Yes |
| 660-543 | WARRENSBG | 1811 | — | — |
| 660-544 | DALTON | 1151 | — | Yes |
| 660-547 | LINCOLN | 1811 | — | Yes |
| 660-548 | BRUNSWICK | 1151 | — | Yes |
| 660-549 | DE WITT | 1864 | — | — |
| 660-552 | KING CITY | 4932 | 2004-12-30 | Yes |
| 660-553 | SEDALIA | 6534 | 2005-02-18 | Yes |
| 660-555 | DIR ASST | MULT | — | — |
| 660-556 | WARSAW | 6701 | 2021-12-23 | Yes |
| 660-557 | SWEET SPG | 356H | — | Yes |
| 660-559 | MADISON | 1885 | 2016-07-11 | Yes |
| 660-560 | HIGH POINT | 4932 | — | Yes |
| 660-562 | MARYVILLE | 1811 | — | — |
| 660-563 | KNOBNOSTER | 9533 | — | Yes |
| 660-564 | GRANT CITY | 1885 | — | Yes |
| 660-565 | HALE | 1864 | — | — |
| 660-566 | CLEARMONT | 965H | 2020-09-02 | Yes |
| 660-568 | HOUSTONIA | 1811 | — | Yes |
| 660-570 | SEDALIA | 356H | 2015-01-26 | Yes |
| 660-572 | MOUND CITY | 6534 | — | Yes |
| 660-580 | WARRENSBG | 6701 | — | Yes |
| 660-581 | SOBRADDYVL | 1167 | — | — |
| 660-582 | MARYVILLE | 1811 | — | Yes |
| 660-584 | HIGGINSVL | 1865 | — | — |
| 660-586 | NEWFRNKLIN | 9533 | 2001-05-10 | Yes |
| 660-587 | LA PLATA | 093F | — | Yes |
| 660-588 | KNOXVILLE | 516J | 2022-02-22 | Yes |
| 660-591 | MACON | 6701 | — | Yes |
| 660-592 | POWERSVL | 1888 | — | — |
| 660-593 | NORBORNE | 6155 | — | Yes |
| 660-594 | NORBORNE | 1811 | — | Yes |
| 660-595 | MALTA BEND | 1811 | — | Yes |
| 660-596 | SEDALIA | 6701 | 2001-05-10 | Yes |
| 660-598 | ROCKVILLE | 1151 | — | Yes |
| 660-599 | LAREDO | 965H | 2020-09-10 | Yes |
| 660-600 | SEDALIA | 965H | 2019-01-31 | Yes |
| 660-605 | GALLATIN | 5814 | 2004-06-09 | Yes |
| 660-611 | XXXXXXXXXX | MULT | — | — |
| 660-613 | LEETON | 093F | — | Yes |
| 660-616 | TIPTON | 4932 | 2004-12-30 | Yes |
| 660-619 | SEDALIA | 5814 | — | Yes |
| 660-620 | SEDALIA | 5814 | — | Yes |
| 660-621 | NEWFRNKLIN | 5814 | — | Yes |
| 660-622 | TINA | 1890 | — | — |
| 660-623 | TARKIO | 6534 | — | Yes |
| 660-624 | WARRENSBG | 5814 | — | Yes |
| 660-626 | KIRKSVILLE | 9533 | — | 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.