NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026
The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 407-258 | 1XXX2XXX3XXX4XXX5XXX6XXX · 4 holders which blocks → | ORLANDO TELEPHONE COMPANY DBA SUMMIT BROADBAND | 7857 | WINDERMERE | FL |
| — | 407-313 | not yet reported which blocks → | ORLANDO TELEPHONE COMPANY DBA SUMMIT BROADBAND | 7857 | ORLANDO | FL |
| — | 407-387 | not yet reported which blocks → | ORLANDO TELEPHONE COMPANY DBA SUMMIT BROADBAND | 7857 | REEDYCREEK | FL |
| — | 407-964 | 1XXX2XXX3XXX5XXX8XXX · 5 holders which blocks → | ORLANDO TELEPHONE COMPANY DBA SUMMIT BROADBAND | 7857 | CELEBRATN | FL |
| — | 407-993 | 1XXX2XXX5XXX6XXX7XXX · 4 holders which blocks → | ORLANDO TELEPHONE COMPANY DBA SUMMIT BROADBAND | 7857 | WINTERGRDN | FL |
| — | 407-994 | 3XXX4XXX5XXX6XXX8XXX9XXX · 2 holders which blocks → | ORLANDO TELEPHONE COMPANY DBA SUMMIT BROADBAND | 7857 | KISSIMMEE | FL |
| — | 407-995 | 4XXX6XXX8XXX9XXX · 3 holders which blocks → | ORLANDO TELEPHONE COMPANY DBA SUMMIT BROADBAND | 7857 | SANFORD | FL |
| — | 407-996 | not yet reported which blocks → | ORLANDO TELEPHONE COMPANY DBA SUMMIT BROADBAND | 7857 | ORLANDO | FL |
| — | 407-997 | not yet reported which blocks → | ORLANDO TELEPHONE COMPANY DBA SUMMIT BROADBAND | 7857 | WKISSIMMEE | FL |
| — | 407-998 | not yet reported which blocks → | ORLANDO TELEPHONE COMPANY DBA SUMMIT BROADBAND | 7857 | WINTERPARK | FL |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.