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 |
|---|---|---|---|---|---|---|
| — | 620-939 | not yet reported which blocks → | CRAW-KAN TEL. COOP.,INC. - KS | 1818 | BRONSON | KS |
| — | 620-947 | none assigned yet which blocks → | UNITED TEL. CO. OF KANSAS DBA CENTURYLINK | 1842 | HILLSBORO | KS |
| — | 620-948 | 0XXX2XXX5XXX9XXX · 4 holders which blocks → | SOUTHWESTERN BELL | 9533 | COFFEYVL | KS |
| — | 620-950 | not yet reported which blocks → | KS | |||
| — | 620-951 | 1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → | UNITED STATES CELLULAR - KS | 6267 | HESSTON | KS |
| — | 620-958 | not yet reported which blocks → | KS | |||
| — | 620-959 | not yet reported which blocks → | KS | |||
| — | 620-962 | not yet reported which blocks → | KANOKLA TEL ASSN | 1788 | FREEPORT | KS |
| — | 620-963 | 9XXX which blocks → | UNITED TEL OF EASTERN KANSAS DBA CENTURYLINK | 1810 | NEOSHO FLS | KS |
| — | 620-964 | 9XXX which blocks → | UNITED TEL OF EASTERN KANSAS DBA CENTURYLINK | 1810 | LEROY | KS |
| — | 620-965 | none assigned yet which blocks → | SOUTHERN KANSAS TEL. CO., INC. | 1833 | LATHAM | KS |
| — | 620-967 | not yet reported which blocks → | KANOKLA TEL ASSN | 1788 | BLUFF CITY | KS |
| — | 620-968 | 0XXX3XXX4XXX6XXX9XXX · 3 holders which blocks → | SOUTHWESTERN BELL | 9533 | WELLINGTON | KS |
| — | 620-976 | not yet reported which blocks → | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | KS |
| — | 620-982 | 2XXX7XXX8XXX9XXX · 2 holders which blocks → | SOUTHWESTERN BELL | 9533 | PAWNEEROCK | KS |
| — | 620-983 | 0XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → | SOUTHWESTERN BELL | 9533 | PEABODY | KS |
| — | 620-984 | not yet reported which blocks → | KANOKLA TEL ASSN | 1788 | WALDRON | KS |
| — | 620-986 | not yet reported which blocks → | WHEAT STATE TEL., INC. | 1847 | ROCK | KS |
| — | 620-995 | 6XXX7XXX8XXX · 2 holders which blocks → | UNITED TEL OF EASTERN KANSAS DBA CENTURYLINK | 1810 | BELPRE | KS |
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.