NumberResearchRecent prefix assignments
2 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 |
|---|---|---|---|---|---|---|
| — | 234-736 | 0XXX1XXX2XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | ELIVERPOOL | OH |
| — | 234-742 | 2XXX3XXX4XXX5XXX6XXX · 3 holders which blocks → | TWILIO INTERNATIONAL, INC. | 506J | HOLMESVL | OH |
| — | 234-752 | 0XXX1XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | BANDWIDTH.COM CLEC, LLC - OH | 001F | MALVERN | OH |
| — | 234-811 | not yet reported which blocks → | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | OH |
| — | 234-855 | 0–9 XXXall 10 · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | YOUNGSTOWN | OH |
| — | 234-863 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → | METROPCS, INC. | 5562 | AKRON | OH |
| — | 234-911 | not yet reported which blocks → | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | OH |
| — | 234-926 | 0–9 XXXall 10 · 4 holders which blocks → | NUSO, LLC | 732J | WARREN | OH |
| — | 234-950 | not yet reported which blocks → | OH | |||
| — | 234-958 | not yet reported which blocks → | OH | |||
| — | 234-959 | not yet reported which blocks → | OH | |||
| — | 234-976 | not yet reported which blocks → | OH |
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.