NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/24/2026
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 |
|---|---|---|---|---|---|---|
| — | 931-394 | 5XXX which blocks → | BEN LOMAND RURAL TEL. COOP., INC. | 0553 | BEECHGROVE | TN |
| — | 931-467 | not yet reported which blocks → | BEN LOMAND RURAL TEL. COOP., INC. | 0553 | PELHAM | TN |
| — | 931-592 | not yet reported which blocks → | BEN LOMAND RURAL TEL. COOP., INC. | 0553 | TRACY CITY | TN |
| — | 931-596 | not yet reported which blocks → | BEN LOMAND RURAL TEL. COOP., INC. | 0553 | HILLSBORO | TN |
| — | 931-635 | not yet reported which blocks → | BEN LOMAND RURAL TEL. COOP., INC. | 0553 | VIOLA | TN |
| — | 931-657 | not yet reported which blocks → | BEN LOMAND RURAL TEL. COOP., INC. | 0553 | DOYLE | TN |
| — | 931-668 | not yet reported which blocks → | BEN LOMAND RURAL TEL. COOP., INC. | 0553 | MCMINNVL | TN |
| — | 931-686 | not yet reported which blocks → | BEN LOMAND RURAL TEL. COOP., INC. | 0553 | ROCKISLAND | TN |
| — | 931-692 | not yet reported which blocks → | BEN LOMAND RURAL TEL. COOP., INC. | 0553 | BEERSHEBA | TN |
| — | 931-738 | not yet reported which blocks → | BEN LOMAND RURAL TEL. COOP., INC. | 0553 | SPARTA | TN |
| — | 931-739 | not yet reported which blocks → | BEN LOMAND RURAL TEL. COOP., INC. | 0553 | SPARTA | TN |
| — | 931-761 | not yet reported which blocks → | BEN LOMAND RURAL TEL. COOP., INC. | 0553 | OLD ZION | TN |
| — | 931-779 | not yet reported which blocks → | BEN LOMAND RURAL TEL. COOP., INC. | 0553 | LAAGER | TN |
| — | 931-815 | not yet reported which blocks → | BEN LOMAND RURAL TEL. COOP., INC. | 0553 | MCMINNVL | TN |
| — | 931-924 | not yet reported which blocks → | BEN LOMAND RURAL TEL. COOP., INC. | 0553 | MONTEAGLE | TN |
| — | 931-934 | not yet reported which blocks → | BEN LOMAND RURAL TEL. COOP., INC. | 0553 | DIBRELL | TN |
| — | 931-935 | not yet reported which blocks → | BEN LOMAND RURAL TEL. COOP., INC. | 0553 | BONDECROFT | TN |
| — | 931-939 | 1XXX8XXX9XXX · 3 holders which blocks → | BEN LOMAND RURAL TEL. COOP., INC. | 0553 | CENTERTOWN | TN |
| — | 931-946 | not yet reported which blocks → | BEN LOMAND RURAL TEL. COOP., INC. | 0553 | SPENCER | TN |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/24/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.