All assignees
456 prefixes in 636 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 636-816 | — | — | ||
| 636-821 | POND | 829J | — | Yes |
| 636-825 | VALLEYPARK | 9533 | — | Yes |
| 636-827 | VALLEYPARK | 9533 | — | — |
| 636-828 | NEW MELLE | 9787 | — | Yes |
| 636-829 | HIGH RIDGE | 6529 | 2019-02-06 | Yes |
| 636-837 | HERCUMPVLY | 516J | 2020-12-22 | Yes |
| 636-841 | WENTZVILLE | 6529 | — | Yes |
| 636-849 | OFALLON | 6529 | 2017-04-06 | Yes |
| 636-851 | HARVESTER | 9533 | 2001-07-05 | Yes |
| 636-856 | WENTZVILLE | 792K | 2008-01-23 | Yes |
| 636-861 | VALLEYPARK | 9533 | — | — |
| 636-865 | HILLSBORO | 6123 | 2017-03-24 | Yes |
| 636-866 | ST CHARLES | 7432 | — | Yes |
| 636-867 | JONESBURG | 516J | 2022-01-11 | Yes |
| 636-874 | OFALLON | 516J | 2022-02-17 | Yes |
| 636-875 | ST PETERS | 829J | 2007-07-06 | Yes |
| 636-887 | WENTZVILLE | 792K | 2004-12-13 | Yes |
| 636-888 | ST CLAIR | 225F | 2014-01-21 | Yes |
| 636-891 | MANCHESTER | 9533 | — | Yes |
| 636-893 | MANCHESTER | 7432 | — | Yes |
| 636-896 | ST CHARLES | 9533 | — | Yes |
| 636-898 | CHESTERFLD | 7432 | — | Yes |
| 636-899 | PORTAGSIUX | 9533 | — | Yes |
| 636-900 | WASHINGTON | 093F | 2015-10-14 | Yes |
| 636-911 | XXXXXXXXXX | MULT | — | — |
| 636-916 | ST CHARLES | 9533 | — | — |
| 636-922 | HARVESTER | 9533 | — | Yes |
| 636-923 | VALLEYPARK | 829J | — | Yes |
| 636-925 | ST CHARLES | 9533 | — | Yes |
| 636-926 | HARVESTER | 9533 | — | Yes |
| 636-928 | HARVESTER | 9533 | — | — |
| 636-931 | FSSCRSTLCY | 9533 | — | Yes |
| 636-932 | HOLSTEIN | 9787 | — | Yes |
| 636-933 | FSSCRSTLCY | 9533 | — | Yes |
| 636-936 | HARVESTER | 9533 | — | Yes |
| 636-937 | FSSCRSTLCY | 9533 | — | — |
| 636-938 | EUREKA | 9533 | — | Yes |
| 636-939 | HARVESTER | 9533 | — | Yes |
| 636-940 | ST CHARLES | 9533 | — | — |
| 636-942 | ANTONIA | 9533 | — | Yes |
| 636-944 | WARE | 9533 | — | Yes |
| 636-946 | ST CHARLES | 9533 | — | — |
| 636-947 | ST CHARLES | 9533 | — | — |
| 636-948 | ANTONIA | 9533 | — | Yes |
| 636-949 | ST CHARLES | 9533 | — | — |
| 636-950 | — | — | ||
| 636-958 | — | — | ||
| 636-959 | — | — | ||
| 636-970 | ST PETERS | 9787 | — | Yes |
| 636-976 | — | — | ||
| 636-978 | OFALLON | 9787 | — | — |
| 636-980 | OFALLON | 9787 | — | Yes |
| 636-987 | DEFIANCE | 9787 | — | Yes |
| 636-988 | — | — | ||
| 636-999 | PACIFIC | 093F | 2015-03-20 | 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.