All assignees
800 prefixes in 813 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 813-900 | TAMPA | 5562 | 2005-08-27 | Yes |
| 813-901 | TAMPACEN | 0328 | — | Yes |
| 813-902 | TAMPACEN | 0328 | — | Yes |
| 813-903 | TAMPACEN | 0328 | — | — |
| 813-904 | ZEPHYRHILS | 6502 | 2023-09-12 | Yes |
| 813-905 | TAMPACEN | 0328 | — | — |
| 813-906 | TAMPACEN | 7448 | 2015-03-03 | Yes |
| 813-907 | TAMPANTH | 0328 | — | — |
| 813-908 | TAMPACEN | 0328 | — | Yes |
| 813-909 | TAMPANTH | 0328 | — | Yes |
| 813-910 | TAMPACEN | 0328 | — | — |
| 813-911 | XXXXXXXXXX | MULT | — | — |
| 813-912 | TAMPAWST | 321J | — | Yes |
| 813-913 | TAMPACEN | 6630 | — | — |
| 813-914 | TAMPACEN | 0328 | — | — |
| 813-915 | TAMPACEN | 0328 | — | Yes |
| 813-916 | TAMPAEST | 0328 | 2015-10-12 | Yes |
| 813-917 | TAMPA | 5562 | — | Yes |
| 813-918 | TAMPA | 5562 | — | Yes |
| 813-919 | TAMPA | 6701 | 2005-03-31 | Yes |
| 813-920 | TAMPAWST | 0328 | — | — |
| 813-921 | TAMPANTH | 937C | 2022-08-02 | Yes |
| 813-922 | TAMPASTH | 045L | 2012-02-09 | Yes |
| 813-923 | ZEPHYRHILS | 982E | 2021-08-13 | Yes |
| 813-924 | TAMPA | 6502 | — | — |
| 813-925 | TAMPAWST | 0328 | — | Yes |
| 813-926 | TAMPAWST | 0328 | — | — |
| 813-927 | TAMPA | 5562 | — | Yes |
| 813-928 | TAMPA | 6502 | — | — |
| 813-929 | TAMPANTH | 0328 | — | — |
| 813-930 | TAMPACEN | 0328 | — | Yes |
| 813-931 | TAMPACEN | 0328 | — | — |
| 813-932 | TAMPACEN | 0328 | — | — |
| 813-933 | TAMPACEN | 0328 | — | — |
| 813-934 | TAMPAWST | 937C | 2021-11-08 | Yes |
| 813-935 | TAMPACEN | 0328 | — | — |
| 813-936 | TAMPACEN | 0328 | — | Yes |
| 813-937 | TAMPAWST | 8300 | 2021-12-08 | Yes |
| 813-938 | TAMPASTH | 045L | 2006-10-09 | Yes |
| 813-939 | TAMPACEN | 8300 | 2021-12-08 | Yes |
| 813-940 | TAMPACEN | 6701 | 2015-10-22 | Yes |
| 813-941 | — | — | ||
| 813-942 | TAMPACEN | 624H | 2021-11-08 | Yes |
| 813-943 | TAMPANTH | 6214 | 2004-02-27 | Yes |
| 813-944 | TAMPASTH | 6214 | 2004-02-27 | Yes |
| 813-945 | TAMPACEN | 965H | 2021-12-22 | Yes |
| 813-946 | PLANT CITY | 481F | 2019-02-20 | Yes |
| 813-947 | TAMPACEN | 508J | 2015-11-10 | Yes |
| 813-948 | TAMPANTH | 0328 | — | Yes |
| 813-949 | TAMPANTH | 0328 | — | — |
| 813-950 | — | — | ||
| 813-951 | TAMPA | 6502 | — | Yes |
| 813-952 | TAMPA | 7421 | — | Yes |
| 813-953 | TAMPANTH | 6701 | 2016-12-08 | Yes |
| 813-954 | TAMPACEN | 6502 | 2023-11-14 | Yes |
| 813-955 | TAMPACEN | 6502 | 2016-10-26 | Yes |
| 813-956 | TAMPACEN | 6214 | — | — |
| 813-957 | TAMPA | 6502 | — | Yes |
| 813-958 | — | — | ||
| 813-959 | — | — | ||
| 813-960 | TAMPACEN | 0328 | — | — |
| 813-961 | TAMPACEN | 0328 | — | — |
| 813-962 | TAMPACEN | 0328 | — | — |
| 813-963 | TAMPACEN | 0328 | — | — |
| 813-964 | TAMPACEN | 0328 | — | Yes |
| 813-965 | TAMPA | 5562 | 2005-03-24 | Yes |
| 813-966 | TAMPA | 6701 | — | — |
| 813-967 | PLANT CITY | 5562 | — | Yes |
| 813-968 | TAMPACEN | 0328 | — | — |
| 813-969 | TAMPACEN | 0328 | — | — |
| 813-970 | TAMPACEN | 6701 | 2015-12-16 | Yes |
| 813-971 | TAMPACEN | 0328 | — | — |
| 813-972 | TAMPACEN | 0328 | — | — |
| 813-973 | TAMPANTH | 0328 | — | — |
| 813-974 | TAMPACEN | 7448 | — | — |
| 813-975 | TAMPACEN | 0328 | — | — |
| 813-976 | XXXXXXXXXX | MULT | — | — |
| 813-977 | TAMPACEN | 0328 | — | — |
| 813-978 | TAMPACEN | 0328 | — | — |
| 813-979 | TAMPACEN | 0328 | — | — |
| 813-980 | TAMPACEN | 0328 | — | — |
| 813-981 | TAMPACEN | 4802 | — | Yes |
| 813-982 | TAMPAEST | 0328 | — | Yes |
| 813-983 | TAMPACEN | 0328 | — | Yes |
| 813-984 | TAMPACEN | 0328 | — | Yes |
| 813-985 | TAMPACEN | 0328 | — | — |
| 813-986 | TAMPAEST | 0328 | — | — |
| 813-987 | TAMPACEN | 0328 | — | — |
| 813-988 | TAMPACEN | 0328 | — | — |
| 813-989 | TAMPACEN | 0328 | — | — |
| 813-990 | TAMPACEN | 0328 | — | Yes |
| 813-991 | TAMPANTH | 0328 | — | — |
| 813-992 | TAMPA | 6214 | 2001-01-23 | Yes |
| 813-993 | TAMPAEST | 937C | 2015-12-10 | Yes |
| 813-994 | TAMPANTH | 0328 | — | — |
| 813-995 | TAMPANTH | 0328 | — | Yes |
| 813-996 | TAMPANTH | 0328 | — | — |
| 813-997 | TAMPANTH | 6502 | — | — |
| 813-998 | TAMPACEN | 0328 | — | Yes |
| 813-999 | TAMPACEN | 045L | — | 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.