All assignees
531 prefixes in 660 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 660-627 | KIRKSVILLE | 9533 | — | Yes |
| 660-628 | WARRENSBG | 093F | 2017-04-06 | Yes |
| 660-631 | MARSHALL | 5814 | — | Yes |
| 660-633 | BRIMSON | 965H | 2020-09-01 | Yes |
| 660-634 | BRUNSWICK | 1151 | — | Yes |
| 660-635 | TRENTON | 6534 | — | Yes |
| 660-636 | AVALON | 1890 | — | — |
| 660-638 | URICH | 1811 | — | Yes |
| 660-639 | CHULA | 1888 | — | — |
| 660-641 | HIGGINSVL | 5814 | — | Yes |
| 660-643 | HUME | 1759 | — | — |
| 660-644 | BRECKENRDG | 1890 | — | — |
| 660-645 | BRAYMER | 1151 | — | Yes |
| 660-646 | CHILLICOTH | 9533 | — | — |
| 660-647 | WINDSOR | 1811 | — | Yes |
| 660-650 | SEDALIA | 093F | 2019-01-10 | Yes |
| 660-651 | MOBERLY | 6275 | — | Yes |
| 660-652 | BARNARD | 1888 | — | — |
| 660-653 | LEETON | 1811 | — | Yes |
| 660-654 | TRENTON | 5814 | 2005-02-24 | Yes |
| 660-655 | HOUSTONIA | 4932 | 2004-12-30 | Yes |
| 660-656 | CENTERVIEW | 1811 | — | Yes |
| 660-659 | WHEELING | 1890 | — | — |
| 660-660 | SEDALIA | 093F | 2022-10-18 | Yes |
| 660-661 | SYRACUSE | 093F | — | Yes |
| 660-662 | HIGBEE | 093F | 2020-12-10 | Yes |
| 660-663 | GALLATIN | 1885 | — | — |
| 660-665 | KIRKSVILLE | 9533 | — | — |
| 660-666 | DARLINGTON | 1888 | — | — |
| 660-667 | LEXINGTON | 093F | 2020-10-12 | Yes |
| 660-668 | COLE CAMP | 1811 | — | Yes |
| 660-669 | OREGON | 4932 | — | Yes |
| 660-670 | KIMBERLY | 6275 | — | Yes |
| 660-671 | PICKERING | 4932 | — | Yes |
| 660-672 | BOONVILLE | 4932 | 2002-03-28 | Yes |
| 660-673 | GALT | 1888 | — | — |
| 660-674 | ALMA | 1860 | — | — |
| 660-675 | BROOKFIELD | 4932 | 2002-03-28 | Yes |
| 660-676 | MOBERLY | 6275 | 2001-01-18 | Yes |
| 660-677 | ARMSTRONG | 4932 | 2002-03-28 | Yes |
| 660-678 | CHILHOWEE | 1811 | — | Yes |
| 660-679 | BUTLER | 1811 | — | Yes |
| 660-680 | SEDALIA | 093F | 2021-03-04 | Yes |
| 660-683 | CRAIG | 1811 | — | Yes |
| 660-684 | JAMESPORT | 1888 | — | Yes |
| 660-686 | FAIRFAX | 1811 | — | Yes |
| 660-687 | KNOBNOSTER | 9533 | — | Yes |
| 660-688 | ATHENS | 093F | 2021-12-10 | Yes |
| 660-689 | NEW BOSTON | 1864 | — | — |
| 660-690 | CREIGHTON | 225F | 2014-03-20 | Yes |
| 660-691 | CLARENCE | 4932 | — | Yes |
| 660-692 | POLLOCK | 1931 | — | Yes |
| 660-693 | MONTROSE | 1811 | — | Yes |
| 660-694 | CALHOUN | 1811 | — | Yes |
| 660-695 | BUCKLIN | 1864 | — | — |
| 660-696 | DEEPWATER | 1811 | — | Yes |
| 660-697 | BLACKBURN | 093F | — | Yes |
| 660-699 | CLARENCE | 1151 | — | Yes |
| 660-700 | — | — | ||
| 660-707 | CHILLICOTH | 9533 | — | Yes |
| 660-711 | XXXXXXXXXX | MULT | — | — |
| 660-717 | MARSHALL | 093F | 2016-01-05 | Yes |
| 660-720 | WAVERLY | 093F | 2020-10-09 | Yes |
| 660-721 | REVERE | 093F | — | Yes |
| 660-722 | URICH | 4932 | 2004-12-30 | Yes |
| 660-723 | WARSAW | 6534 | — | Yes |
| 660-724 | UNIONVILLE | 965H | 2020-09-11 | Yes |
| 660-725 | BURLITNJCT | 4401 | — | Yes |
| 660-726 | ALBANY | 1885 | — | Yes |
| 660-727 | KAHOKA | 1151 | — | Yes |
| 660-728 | FAYETTE | 5814 | — | Yes |
| 660-729 | CLEARMONT | 4401 | — | Yes |
| 660-730 | KIRKSVILLE | 9533 | — | Yes |
| 660-731 | BOGARD | 1890 | — | — |
| 660-732 | WYACONDA | 965H | 2020-09-11 | Yes |
| 660-733 | NEWARK | 1914 | — | — |
| 660-734 | BROOKFIELD | 6534 | — | Yes |
| 660-735 | SODAVIS CY | 1888 | — | — |
| 660-736 | TARKIO | 1811 | — | Yes |
| 660-738 | LUDLOW | 1890 | — | — |
| 660-739 | NOVELTY | 1914 | — | — |
| 660-741 | LA BELLE | 093F | — | Yes |
| 660-742 | ELMO | 4401 | — | — |
| 660-744 | ROCK PORT | 1942 | — | Yes |
| 660-745 | DAWN | 1890 | — | — |
| 660-747 | WARRENSBG | 1811 | — | — |
| 660-748 | PRINCETON | 1888 | — | — |
| 660-749 | WINSTON | 1885 | — | Yes |
| 660-752 | CHILLICOTH | 9533 | — | Yes |
| 660-754 | WAYLAND | 1151 | — | Yes |
| 660-755 | MOORESVL | 1890 | — | — |
| 660-758 | MT MORIAH | 965H | 2020-09-11 | Yes |
| 660-761 | SLATER | 093F | — | Yes |
| 660-762 | LEONARD | 1914 | — | — |
| 660-766 | QUEEN CITY | 1931 | — | Yes |
| 660-767 | GORIN | 093F | — | Yes |
| 660-768 | CALLAO | 1864 | — | — |
| 660-770 | FAYETTE | 939H | — | Yes |
| 660-771 | MARYVILLE | 454H | 2015-01-26 | Yes |
| 660-772 | LOCK SPG | 1890 | — | — |
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.