All assignees
156 prefixes in 220 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 220-333 | ROSEVILLE | 464C | 2017-09-01 | Yes |
| 220-345 | LETART FLS | 965H | 2021-08-03 | Yes |
| 220-348 | ADAMSVILLE | 965H | 2021-06-11 | Yes |
| 220-356 | BYESVILLE | 965H | 2020-02-12 | Yes |
| 220-386 | CHESAPEAKE | 965H | 2021-06-11 | Yes |
| 220-399 | NELSONVL | 965H | 2021-06-14 | Yes |
| 220-400 | CHESTERHL | 965H | 2020-02-12 | Yes |
| 220-411 | XXXXXXXXXX | MULT | — | — |
| 220-432 | FULTONHAM | 965H | 2021-06-11 | Yes |
| 220-440 | FRAZEYSBG | 464C | 2021-01-06 | Yes |
| 220-444 | MINGO JCT | 464C | 2017-09-15 | Yes |
| 220-465 | PATASKALA | 965H | 2020-02-12 | Yes |
| 220-499 | MARIETTA | 965H | 2021-06-11 | Yes |
| 220-500 | MILLERSPT | 965H | 2021-01-19 | Yes |
| 220-511 | XXXXXXXXXX | MULT | — | — |
| 220-529 | OLDWSHNGTN | 965H | 2020-02-12 | Yes |
| 220-555 | DIR ASST | MULT | — | — |
| 220-564 | NEWARK | 0665 | 2015-11-19 | Yes |
| 220-577 | ZANESVILLE | 965H | 2021-06-15 | Yes |
| 220-599 | LAURELVL | 965H | 2021-06-11 | Yes |
| 220-600 | SCIO | 965H | 2020-06-30 | Yes |
| 220-611 | XXXXXXXXXX | MULT | — | — |
| 220-666 | BALTIMORE | 464C | 2017-10-06 | Yes |
| 220-667 | BARNESVL | 965H | 2021-06-11 | Yes |
| 220-677 | WILLIAMSPT | 965H | 2021-06-15 | Yes |
| 220-678 | SOMERSET | 7421 | 2022-08-24 | Yes |
| 220-699 | IDAHO | 965H | 2021-06-11 | Yes |
| 220-700 | — | — | ||
| 220-710 | PORTSMOUTH | 624H | 2019-10-08 | Yes |
| 220-711 | XXXXXXXXXX | MULT | — | — |
| 220-732 | ATHENS | 965H | 2021-06-11 | Yes |
| 220-740 | LOWERSALEM | 464C | 2022-11-02 | Yes |
| 220-758 | REINELHKNY | 965H | 2020-02-12 | Yes |
| 220-766 | WALNUT | 965H | 2020-02-12 | Yes |
| 220-777 | COSHOCTON | 145J | 2018-12-21 | Yes |
| 220-786 | CROOKSVL | 965H | 2021-06-11 | Yes |
| 220-788 | NEWHOLLAND | 965H | 2021-06-14 | Yes |
| 220-799 | GUYAN | 965H | 2021-06-11 | Yes |
| 220-800 | WLAFAYETTE | 965H | 2019-01-25 | Yes |
| 220-811 | XXXXXXXXXX | MULT | — | — |
| 220-837 | CHILLICOTH | 516J | 2021-02-09 | Yes |
| 220-842 | WELLSTON | 965H | 2020-02-12 | Yes |
| 220-877 | PROSPECT | 965H | 2021-06-15 | Yes |
| 220-888 | RUSHVILLE | 464C | 2017-09-01 | Yes |
| 220-899 | GRAYSVILLE | 965H | 2021-06-11 | Yes |
| 220-900 | SUGARGROVE | 965H | 2019-05-08 | Yes |
| 220-901 | GUYSVILLE | 624H | 2021-11-16 | Yes |
| 220-902 | BARLOW | 624H | 2021-11-16 | Yes |
| 220-911 | XXXXXXXXXX | MULT | — | — |
| 220-946 | COOPERDALE | 965H | 2021-06-11 | Yes |
| 220-950 | — | — | ||
| 220-958 | — | — | ||
| 220-959 | — | — | ||
| 220-976 | — | — | ||
| 220-977 | PLEASANTVL | 965H | 2021-06-14 | Yes |
| 220-999 | NEWPORT | 464C | 2017-09-15 | 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.