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 |
|---|---|---|---|---|---|---|
| 2009-10-23 | 920-692 | 0XXX1XXX2XXX5XXX9XXX · 3 holders which blocks → | MICHIGAN WIRELESS, LLC DBA BUG TUSSEL WIRELESS | 698E | MANAWA | WI |
| 2009-05-21 | 920-633 | 0–9 XXXall 10 · 7 holders which blocks → | MICHIGAN WIRELESS, LLC DBA BUG TUSSEL WIRELESS | 698E | SISTER BAY | WI |
| 2008-08-05 | 920-931 | 0–9 XXXall 10 · 6 holders which blocks → | MICHIGAN WIRELESS, LLC DBA BUG TUSSEL WIRELESS | 698E | APPLETON | WI |
| 2008-07-30 | 920-940 | 0–9 XXXall 10 · 6 holders which blocks → | MICHIGAN WIRELESS, LLC DBA BUG TUSSEL WIRELESS | 698E | GREEN BAY | WI |
| 2007-11-08 | 920-697 | 0–9 XXXall 10 · 4 holders which blocks → | MICHIGAN WIRELESS, LLC DBA BUG TUSSEL WIRELESS | 698E | TISCHMILLS | WI |
| 2005-08-28 | 920-768 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | MICHIGAN WIRELESS, LLC DBA BUG TUSSEL WIRELESS | 698E | FALL RIVER | WI |
| — | 920-620 | 1XXX2XXX3XXX4XXX6XXX7XXX9XXX · 4 holders which blocks → | MICHIGAN WIRELESS, LLC DBA BUG TUSSEL WIRELESS | 698E | KINGSTON | 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.