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 |
|---|---|---|---|---|---|---|
| — | 218-729 | 2XXX which blocks → | QWEST CORPORATION | 9631 | DULUTH | MN |
| — | 218-730 | 1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → | QWEST CORPORATION | 9631 | DULUTH | MN |
| — | 218-732 | not yet reported which blocks → | QWEST CORPORATION | 9631 | PARKRAPIDS | MN |
| — | 218-733 | not yet reported which blocks → | QWEST CORPORATION | 9631 | DULUTH | MN |
| — | 218-735 | 3XXX5XXX6XXX · 2 holders which blocks → | QWEST CORPORATION | 9631 | VIRGINIA | MN |
| — | 218-736 | 9XXX which blocks → | QWEST CORPORATION | 9631 | FERGUS FLS | MN |
| — | 218-739 | not yet reported which blocks → | QWEST CORPORATION | 9631 | FERGUS FLS | MN |
| — | 218-741 | not yet reported which blocks → | QWEST CORPORATION | 9631 | VIRGINIA | MN |
| — | 218-742 | none assigned yet which blocks → | QWEST CORPORATION | 9631 | VIRGINIA | MN |
| — | 218-744 | none assigned yet which blocks → | QWEST CORPORATION | 9631 | VIRGINIA | MN |
| — | 218-748 | 0XXX1XXX3XXX4XXX8XXX · 2 holders which blocks → | QWEST CORPORATION | 9631 | VIRGINIA | MN |
| — | 218-749 | not yet reported which blocks → | QWEST CORPORATION | 9631 | VIRGINIA | MN |
| — | 218-751 | not yet reported which blocks → | QWEST CORPORATION | 9631 | BEMIDJI | MN |
| — | 218-755 | 5XXX7XXX · 2 holders which blocks → | QWEST CORPORATION | 9631 | BEMIDJI | MN |
| — | 218-759 | not yet reported which blocks → | QWEST CORPORATION | 9631 | BEMIDJI | MN |
| — | 218-773 | not yet reported which blocks → | QWEST CORPORATION | 9631 | EGRNDFORKS | MN |
| — | 218-778 | 0XXX1XXX3XXX5XXX7XXX9XXX · 4 holders which blocks → | QWEST CORPORATION | 9631 | KEEWATIN | MN |
| — | 218-786 | not yet reported which blocks → | QWEST CORPORATION | 9631 | DULUTH | MN |
| — | 218-788 | 5XXX6XXX9XXX · 2 holders which blocks → | QWEST CORPORATION | 9631 | DULUTH | MN |
| — | 218-789 | 0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 4 holders which blocks → | QWEST CORPORATION | 9631 | SABIN | MN |
| — | 218-825 | not yet reported which blocks → | QWEST CORPORATION | 9631 | BRAINERD | MN |
| — | 218-828 | not yet reported which blocks → | QWEST CORPORATION | 9631 | BRAINERD | MN |
| — | 218-829 | not yet reported which blocks → | QWEST CORPORATION | 9631 | BRAINERD | MN |
| — | 218-833 | 2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → | QWEST CORPORATION | 9631 | BRAINERD | MN |
| — | 218-846 | 4XXX5XXX6XXX8XXX · 4 holders which blocks → | QWEST CORPORATION | 9631 | DETROITLKS | MN |
| — | 218-847 | not yet reported which blocks → | QWEST CORPORATION | 9631 | DETROITLKS | MN |
| — | 218-855 | 2XXX3XXX4XXX7XXX9XXX · 5 holders which blocks → | QWEST CORPORATION | 9631 | BRAINERD | MN |
| — | 218-864 | 1XXX2XXX6XXX7XXX · 3 holders which blocks → | QWEST CORPORATION | 9631 | BATTLELAKE | MN |
| — | 218-865 | 1XXX3XXX5XXX8XXX9XXX · 5 holders which blocks → | QWEST CORPORATION | 9631 | BIWABIK | MN |
| — | 218-878 | 5XXX9XXX · 2 holders which blocks → | QWEST CORPORATION | 9631 | CLOQUET | MN |
| — | 218-879 | not yet reported which blocks → | QWEST CORPORATION | 9631 | CLOQUET | MN |
| — | 218-885 | 4XXX5XXX6XXX8XXX · 2 holders which blocks → | QWEST CORPORATION | 9631 | NASHWAUK | MN |
| — | 218-894 | 6XXX7XXX8XXX9XXX · 4 holders which blocks → | QWEST CORPORATION | 9631 | STAPLES | MN |
| — | 218-935 | 1XXX3XXX4XXX6XXX7XXX8XXX · 4 holders which blocks → | QWEST CORPORATION | 9631 | MAHNOMEN | MN |
| — | 218-963 | 5XXX6XXX · 2 holders which blocks → | QWEST CORPORATION | 9631 | NISSWA | MN |
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.