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 |
|---|---|---|---|---|---|---|
| 2010-12-13 | 931-800 | 0–9 XXXall 10 · 6 holders which blocks → | PAETEC ITEL, LLC | 829J | TULLAHOMA | TN |
| 2010-08-19 | 931-754 | 1XXX2XXX3XXX · 2 holders which blocks → | PAETEC ITEL, LLC | 829J | COOKEVILLE | TN |
| 2004-04-20 | 931-325 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | PAETEC ITEL, LLC | 829J | MTPLEASANT | TN |
| 2002-08-30 | 931-671 | 1XXX5XXX7XXX · 3 holders which blocks → | PAETEC ITEL, LLC | 829J | SANTA FE | TN |
| 2002-08-30 | 931-674 | 1XXX2XXX3XXX4XXX5XXX7XXX8XXX · 6 holders which blocks → | PAETEC ITEL, LLC | 829J | SPRINGHILL | TN |
| — | 931-207 | 0XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | PAETEC ITEL, LLC | 829J | PULASKI | TN |
| — | 931-219 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → | PAETEC ITEL, LLC | 829J | CENTERVL | TN |
| — | 931-222 | 0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → | PAETEC ITEL, LLC | 829J | TULLAHOMA | TN |
| — | 931-223 | 0XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | PAETEC ITEL, LLC | 829J | COLUMBIA | TN |
| — | 931-225 | 0XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | PAETEC ITEL, LLC | 829J | SHELBYVL | TN |
| — | 931-227 | 0XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | PAETEC ITEL, LLC | 829J | FAYETTEVL | TN |
| — | 931-228 | 0XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → | PAETEC ITEL, LLC | 829J | MCEWEN | TN |
| — | 931-229 | 0XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | PAETEC ITEL, LLC | 829J | LYNCHBURG | TN |
| — | 931-230 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | PAETEC ITEL, LLC | 829J | HOHENWALD | TN |
| — | 931-231 | 0XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | PAETEC ITEL, LLC | 829J | LAWRENCEBG | TN |
| — | 931-245 | not yet reported which blocks → | PAETEC ITEL, LLC | 829J | CLARKSVL | TN |
| — | 931-246 | 0XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | PAETEC ITEL, LLC | 829J | LEWISBURG | TN |
| — | 931-274 | not yet reported which blocks → | PAETEC ITEL, LLC | 829J | CLARKSVL | TN |
| — | 931-328 | not yet reported which blocks → | PAETEC ITEL, LLC | 829J | COLUMBIA | TN |
| — | 931-375 | not yet reported which blocks → | PAETEC ITEL, LLC | 829J | COLUMBIA | TN |
| — | 931-386 | 0XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | PAETEC ITEL, LLC | 829J | WINCHESTER | TN |
| — | 931-472 | 4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | PAETEC ITEL, LLC | 829J | CLARKSVL | TN |
| — | 931-488 | 1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | PAETEC ITEL, LLC | 829J | SHELBYVL | TN |
| — | 931-499 | 1XXX2XXX3XXX4XXX5XXX6XXX9XXX · 5 holders which blocks → | PAETEC ITEL, LLC | 829J | SPRINGHILL | TN |
| — | 931-634 | 0XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | PAETEC ITEL, LLC | 829J | DOVER | TN |
| — | 931-881 | 4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | PAETEC ITEL, LLC | 829J | COOKEVILLE | TN |
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.