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 |
|---|---|---|---|---|---|---|
| — | 417-929 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | PAETEC ITEL, LLC | 829J | ROGERSVL | MO |
| — | 417-932 | 2XXX3XXX7XXX8XXX · 2 holders which blocks → | BRIGHTSPEED OF MISSOURI, LLC | 9787 | SUMMERSVL | MO |
| — | 417-933 | 0XXX1XXX3XXX4XXX9XXX · 4 holders which blocks → | BRIGHTSPEED OF MISSOURI, LLC | 9787 | ELKLAND | MO |
| — | 417-934 | 3XXX4XXX · 2 holders which blocks → | BRIGHTSPEED OF MISSOURI, LLC | 9786 | MT VIEW | MO |
| — | 417-935 | 5XXX6XXX · 2 holders which blocks → | BRIGHTSPEED OF MISSOURI, LLC | 9786 | SEYMOUR | MO |
| — | 417-938 | 7XXX9XXX · 2 holders which blocks → | WINDSTREAM MISSOURI, INC. | 1885 | MYRTLE | MO |
| — | 417-943 | 0–9 XXXall 10 · 5 holders which blocks → | ONVOY, LLC - MO | 093F | MARSHFIELD | MO |
| — | 417-944 | 1XXX4XXX7XXX8XXX9XXX · 4 holders which blocks → | BRIGHTSPEED OF EAST MISSOURI, LLC | 1151 | MILO | MO |
| — | 417-948 | 3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → | BRIGHTSPEED OF EAST MISSOURI, LLC | 1151 | VANZANT | MO |
| — | 417-950 | not yet reported which blocks → | MO | |||
| — | 417-954 | 9XXX which blocks → | BANDWIDTH.COM CLEC, LLC - MO | 993E | RAYMONDVL | MO |
| — | 417-958 | not yet reported which blocks → | MO | |||
| — | 417-959 | not yet reported which blocks → | MO | |||
| — | 417-962 | 6XXX7XXX8XXX · 3 holders which blocks → | BRIGHTSPEED OF MISSOURI, LLC | 9786 | CABOOL | MO |
| — | 417-966 | 4XXX6XXX · 2 holders which blocks → | K L M TEL. CO. | 1900 | DEERFIELD | MO |
| — | 417-967 | 7XXX which blocks → | BRIGHTSPEED OF EAST MISSOURI, LLC | 1151 | HOUSTON | MO |
| — | 417-971 | 1XXX7XXX9XXX · 3 holders which blocks → | METROPCS, INC. | 5562 | PINEVILLE | MO |
| — | 417-976 | not yet reported which blocks → | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | MO |
| — | 417-980 | not yet reported which blocks → | SOUTHWESTERN BELL | 9533 | XXXXXXXXXX | MO |
| — | 417-981 | 0XXX2XXX3XXX5XXX which blocks → | ONVOY, LLC - MO | 093F | EXETER | MO |
| — | 417-983 | 0–9 XXXall 10 · 2 holders which blocks → | BANDWIDTH.COM CLEC, LLC - MO | 993E | SPRINGFLD | MO |
| — | 417-993 | 3XXX which blocks → | BRIGHTSPEED OF MISSOURI, LLC | 9787 | URBANA | MO |
| — | 417-994 | 0XXX3XXX4XXX · 2 holders which blocks → | SOUTHWESTERN BELL | 9533 | WALNUT GRV | MO |
| — | 417-995 | 0XXX1XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → | BRIGHTSPEED OF EAST MISSOURI, LLC | 1151 | DADEVILLE | MO |
| — | 417-998 | 8XXX which blocks → | BRIGHTSPEED OF MISSOURI, LLC | 9787 | CROSSTMBRS | MO |
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.