NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/21/2026
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 |
|---|---|---|---|---|---|---|
| — | 507-259 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | 5816 | ROCHESTER | MN |
| — | 507-273 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | 5816 | ROCHESTER | MN |
| — | 507-276 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | 5816 | NEW ULM | MN |
| — | 507-323 | 1XXX2XXX3XXX6XXX8XXX9XXX · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | 5816 | FARIBAULT | MN |
| — | 507-327 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | 5816 | MANKATO | MN |
| — | 507-330 | 7XXX8XXX9XXX · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | 5816 | FARIBAULT | MN |
| — | 507-338 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | 5816 | FARIBAULT | MN |
| — | 507-360 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | 5816 | WORTHINGTN | MN |
| — | 507-380 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | 5816 | MANKATO | MN |
| — | 507-381 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | 5816 | MANKATO | MN |
| — | 507-383 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | 5816 | ALBERT LEA | MN |
| — | 507-429 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | 5816 | WINONA | MN |
| — | 507-438 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | 5816 | AUSTIN | MN |
| — | 507-450 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | 5816 | WINONA | MN |
| — | 507-456 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | 5816 | OWATONNA | MN |
| — | 507-458 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | 5816 | WINONA | MN |
| — | 507-459 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | 5816 | WINONA | MN |
| — | 507-461 | 8XXX which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | 5816 | WASECA | MN |
| — | 507-525 | 8XXX which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | 5816 | BLUE EARTH | MN |
| — | 507-649 | 3XXX4XXX7XXX8XXX9XXX · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | 5816 | NORTHFIELD | MN |
| — | 507-667 | 4XXX7XXX9XXX · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | 5816 | LONSDALE | MN |
| — | 507-828 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | 5816 | MARSHALL | MN |
| — | 507-829 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | 5816 | MARSHALL | MN |
| — | 507-838 | 3XXX4XXX which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | 5816 | FARIBAULT | MN |
| — | 507-920 | 1XXX4XXX · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | 5816 | LUVERNE | MN |
| — | 507-951 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | 5816 | ROCHESTER | MN |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.