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 |
|---|---|---|---|---|---|---|
| 2015-07-29 | 507-594 | 0–9 XXXall 10 · 5 holders which blocks → | CONSOLIDATED COMMUNICATIONS OF MINNESOTA CO - MN | 1427 | MANKATO | MN |
| — | 507-243 | 0XXX which blocks → | CONSOLIDATED COMMUNICATIONS OF MINNESOTA CO - MN | 1427 | MADISON LK | MN |
| — | 507-245 | 8XXX which blocks → | CONSOLIDATED COMMUNICATIONS OF MINNESOTA CO - MN | 1427 | ST CLAIR | MN |
| — | 507-257 | 0XXX2XXX · 2 holders which blocks → | CONSOLIDATED COMMUNICATIONS OF MINNESOTA CO - MN | 1427 | EAGLE LAKE | MN |
| — | 507-278 | 0XXX4XXX7XXX8XXX · 3 holders which blocks → | CONSOLIDATED COMMUNICATIONS OF MINNESOTA CO - MN | 1427 | GOODTHUNDR | MN |
| — | 507-344 | not yet reported which blocks → | CONSOLIDATED COMMUNICATIONS OF MINNESOTA CO - MN | 1427 | MANKATO | MN |
| — | 507-345 | not yet reported which blocks → | CONSOLIDATED COMMUNICATIONS OF MINNESOTA CO - MN | 1427 | MANKATO | MN |
| — | 507-385 | 5XXX9XXX · 2 holders which blocks → | CONSOLIDATED COMMUNICATIONS OF MINNESOTA CO - MN | 1427 | MANKATO | MN |
| — | 507-386 | not yet reported which blocks → | CONSOLIDATED COMMUNICATIONS OF MINNESOTA CO - MN | 1427 | MANKATO | MN |
| — | 507-387 | not yet reported which blocks → | CONSOLIDATED COMMUNICATIONS OF MINNESOTA CO - MN | 1427 | MANKATO | MN |
| — | 507-388 | not yet reported which blocks → | CONSOLIDATED COMMUNICATIONS OF MINNESOTA CO - MN | 1427 | MANKATO | MN |
| — | 507-389 | not yet reported which blocks → | CONSOLIDATED COMMUNICATIONS OF MINNESOTA CO - MN | 1427 | MANKATO | MN |
| — | 507-524 | 0XXX8XXX · 2 holders which blocks → | CONSOLIDATED COMMUNICATIONS OF MINNESOTA CO - MN | 1427 | MAPLETON | MN |
| — | 507-546 | 0XXX5XXX which blocks → | CONSOLIDATED COMMUNICATIONS OF MINNESOTA CO - MN | 1427 | GARDENCITY | MN |
| — | 507-549 | 0XXX4XXX5XXX8XXX · 3 holders which blocks → | CONSOLIDATED COMMUNICATIONS OF MINNESOTA CO - MN | 1427 | VERNON CTR | MN |
| — | 507-625 | not yet reported which blocks → | CONSOLIDATED COMMUNICATIONS OF MINNESOTA CO - MN | 1427 | MANKATO | MN |
| — | 507-674 | 5XXX7XXX8XXX · 3 holders which blocks → | CONSOLIDATED COMMUNICATIONS OF MINNESOTA CO - MN | 1427 | AMBOY | MN |
| — | 507-726 | 5XXX8XXX · 2 holders which blocks → | CONSOLIDATED COMMUNICATIONS OF MINNESOTA CO - MN | 1427 | LK CRYSTAL | MN |
| — | 507-869 | none assigned yet which blocks → | CONSOLIDATED COMMUNICATIONS OF MINNESOTA CO - MN | 1427 | PEMBERTON | MN |
| — | 507-947 | 0XXX4XXX8XXX · 2 holders which blocks → | CONSOLIDATED COMMUNICATIONS OF MINNESOTA CO - MN | 1427 | CAMBRIA | 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.