All assignees
800 prefixes in 815 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 815-900 | MCHENRY | 6534 | 2010-08-04 | Yes |
| 815-901 | DE KALB | 318J | 2005-02-14 | Yes |
| 815-902 | THOMSON | 846F | 2001-06-25 | Yes |
| 815-903 | MCHENRY | 9748 | 2002-02-27 | — |
| 815-904 | ROCKFORD | 6534 | 2006-08-31 | Yes |
| 815-905 | LOCKPORT | 6115 | 2002-02-27 | Yes |
| 815-906 | MT CARROLL | 846F | 2006-04-21 | Yes |
| 815-907 | MANTENO | 6115 | 2001-12-06 | Yes |
| 815-908 | FREEPORT | 6333 | — | Yes |
| 815-909 | DE KALB | 6529 | 2001-05-22 | Yes |
| 815-910 | MENDOTA | 6333 | — | — |
| 815-911 | XXXXXXXXXX | MULT | — | — |
| 815-912 | BELVIDERE | 443F | 2001-09-28 | Yes |
| 815-913 | CHADWICK | 508J | — | Yes |
| 815-914 | ROCKFORD | 5562 | — | Yes |
| 815-915 | PRINCETON | 6115 | 2001-12-28 | Yes |
| 815-916 | PLATTVILLE | 224C | — | Yes |
| 815-917 | ROCHELLE | 443F | — | — |
| 815-918 | CLIFTON | 6115 | 2001-08-22 | Yes |
| 815-919 | JOLIET | 6529 | 2001-02-23 | — |
| 815-920 | CORNELL | 846F | 2005-11-22 | Yes |
| 815-921 | ROCKFORD | 9329 | 2001-04-27 | Yes |
| 815-922 | KANKAKEE | 6333 | — | — |
| 815-923 | UNION | 9329 | — | Yes |
| 815-924 | PROPHETSTN | 443F | — | — |
| 815-925 | HENNEPIN | 1015 | — | Yes |
| 815-926 | WILMINGTON | 6115 | 2001-05-22 | Yes |
| 815-927 | JOLIET | 6115 | — | Yes |
| 815-928 | KANKAKEE | 9329 | — | — |
| 815-929 | KANKAKEE | 9329 | — | — |
| 815-930 | ELIZABETH | 846F | 2002-06-04 | Yes |
| 815-931 | JOLIET | 6534 | — | Yes |
| 815-932 | KANKAKEE | 9329 | — | — |
| 815-933 | KANKAKEE | 9329 | — | — |
| 815-934 | EMINGTON | 1015 | — | Yes |
| 815-935 | KANKAKEE | 9329 | — | — |
| 815-936 | KANKAKEE | 9329 | — | — |
| 815-937 | KANKAKEE | 9329 | — | — |
| 815-938 | FORRESTON | 1036 | — | Yes |
| 815-939 | KANKAKEE | 9329 | — | — |
| 815-940 | GARDNER | 6115 | 2002-05-03 | Yes |
| 815-941 | MORRIS | 9329 | — | — |
| 815-942 | MORRIS | 9329 | — | — |
| 815-943 | HARVARD | 9329 | — | — |
| 815-944 | MOMENCE | 9329 | — | Yes |
| 815-945 | CHENOA | 1015 | — | Yes |
| 815-946 | POLO | 1183 | — | Yes |
| 815-947 | STOCKTON | 1036 | — | Yes |
| 815-948 | HOOPPOLE | 1183 | — | Yes |
| 815-949 | CABERY | 1015 | — | Yes |
| 815-950 | — | — | ||
| 815-951 | AMBOY | 443F | — | Yes |
| 815-952 | LANARK | 443F | 2006-07-18 | — |
| 815-953 | KANKAKEE | 6333 | — | — |
| 815-954 | KANKAKEE | 6333 | — | — |
| 815-955 | JOLIET | 5562 | 2002-07-05 | Yes |
| 815-956 | MORRISON | 1183 | — | Yes |
| 815-957 | ROCKTON | 6115 | 2005-02-22 | Yes |
| 815-958 | — | — | ||
| 815-959 | — | — | ||
| 815-960 | LEAF RIVER | 7894 | 2002-06-04 | — |
| 815-961 | ROCKFORD | 9329 | — | — |
| 815-962 | ROCKFORD | 9329 | — | — |
| 815-963 | ROCKFORD | 9329 | — | — |
| 815-964 | ROCKFORD | 9329 | — | — |
| 815-965 | ROCKFORD | 9329 | — | — |
| 815-966 | ROCKFORD | 9329 | — | — |
| 815-967 | ROCKFORD | 9329 | — | — |
| 815-968 | ROCKFORD | 9329 | — | — |
| 815-969 | ROCKFORD | 9329 | — | Yes |
| 815-970 | SYCAMORE | 5562 | 2002-07-05 | Yes |
| 815-971 | ROCKFORD | 9329 | — | — |
| 815-972 | ROCKFORD | 9329 | — | — |
| 815-973 | DIXON | 6265 | — | Yes |
| 815-974 | HEBRON | 224C | 2018-07-03 | Yes |
| 815-975 | BELVIDERE | 6534 | 2002-09-03 | Yes |
| 815-976 | — | — | ||
| 815-977 | ROCKFORD | 7196 | 2003-06-25 | Yes |
| 815-978 | ROCKFORD | 6333 | — | — |
| 815-979 | ROCKFORD | 6333 | — | — |
| 815-980 | ROCKFORD | 6333 | 2006-06-15 | Yes |
| 815-981 | DE KALB | 6115 | 2002-09-30 | Yes |
| 815-982 | TAMPICO | 846F | — | Yes |
| 815-983 | ROCKFORD | 9748 | — | — |
| 815-984 | WELLINGTON | 1000 | — | Yes |
| 815-985 | ROCKFORD | 6333 | — | — |
| 815-986 | ROCKFORD | 829J | — | — |
| 815-987 | ROCKFORD | 9329 | — | — |
| 815-988 | ROCKFORD | 6265 | — | Yes |
| 815-989 | PROPHETSTN | 846F | 2005-01-04 | Yes |
| 815-990 | FREEPORT | 6333 | 2002-10-22 | Yes |
| 815-991 | SYCAMORE | 6534 | — | Yes |
| 815-992 | STREATOR | 6529 | 2005-04-21 | Yes |
| 815-993 | OGLESBY | 6534 | 2006-09-22 | Yes |
| 815-994 | DIXON | 5562 | 2003-04-14 | Yes |
| 815-995 | DE KALB | 7136 | 2009-06-10 | Yes |
| 815-996 | SAVANNA | 508J | — | Yes |
| 815-997 | ROCKFORD | 829J | 2003-03-26 | Yes |
| 815-998 | ODELL | 1015 | — | Yes |
| 815-999 | JOLIET | 6529 | 2003-07-14 | 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.