NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026
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 |
|---|---|---|---|---|---|---|
| 2024-06-25 | 330-216 | 1XXX which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | PATTERSNVL | OH |
| 2005-07-11 | 330-546 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | CANTON | OH |
| 2001-12-19 | 330-975 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | SEVILLE | OH |
| 2001-03-24 | 330-789 | 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | SHREVE | OH |
| — | 330-522 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 6 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | MINERVA | OH |
| — | 330-850 | 1XXX2XXX3XXX5XXX7XXX · 5 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | ROOTSTOWN | OH |
| — | 330-880 | 0–9 XXXall 10 · 5 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | MASSILLON | OH |
| — | 330-946 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | FREDECKSBG | OH |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.