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 |
|---|---|---|---|---|---|---|
| 2008-06-11 | 715-625 | 0XXX1XXX5XXX · 3 holders which blocks → | METRO SOUTHWEST PCS, LLP | 9759 | FLORENCE | WI |
| 2006-02-08 | 715-513 | 6XXX7XXX9XXX which blocks → | METRO SOUTHWEST PCS, LLP | 9759 | WAUPACA | WI |
| 2005-11-08 | 715-741 | not yet reported which blocks → | METRO SOUTHWEST PCS, LLP | 9759 | WISCOSNRPD | WI |
| 2005-10-04 | 715-650 | 9XXX which blocks → | METRO SOUTHWEST PCS, LLP | 9759 | MARSHFIELD | WI |
| 2005-10-04 | 715-707 | 5XXX6XXX8XXX9XXX · 2 holders which blocks → | METRO SOUTHWEST PCS, LLP | 9759 | IOLA | WI |
| 2004-05-24 | 715-250 | not yet reported which blocks → | METRO SOUTHWEST PCS, LLP | 9759 | CLINTONVL | WI |
| 2003-06-10 | 715-465 | 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → | METRO SOUTHWEST PCS, LLP | 9759 | MEDFORD | WI |
| 2003-06-05 | 715-219 | not yet reported which blocks → | METRO SOUTHWEST PCS, LLP | 9759 | ANTIGO | WI |
| 2003-06-05 | 715-351 | 9XXX which blocks → | METRO SOUTHWEST PCS, LLP | 9759 | MERRILL | WI |
| 2003-06-05 | 715-436 | 3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → | METRO SOUTHWEST PCS, LLP | 9759 | TOMAHAWK | WI |
| 2003-06-05 | 715-437 | not yet reported which blocks → | METRO SOUTHWEST PCS, LLP | 9759 | RHINELANDR | WI |
| 2003-06-05 | 715-439 | 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | METRO SOUTHWEST PCS, LLP | 9759 | MINOCQUA | WI |
| 2003-06-05 | 715-521 | 7XXX8XXX9XXX · 3 holders which blocks → | METRO SOUTHWEST PCS, LLP | 9759 | ARGONNE | WI |
| 2003-06-05 | 715-522 | 5XXX7XXX9XXX · 3 holders which blocks → | METRO SOUTHWEST PCS, LLP | 9759 | EAGLERIVER | WI |
| — | 715-270 | not yet reported which blocks → | METRO SOUTHWEST PCS, LLP | 9759 | WAUPACA | WI |
| — | 715-805 | not yet reported which blocks → | METRO SOUTHWEST PCS, LLP | 9759 | MERRILL | WI |
| — | 715-906 | not yet reported which blocks → | METRO SOUTHWEST PCS, LLP | 9759 | RHINELANDR | WI |
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.