NumberResearchRecent prefix assignments
3 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026
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 |
|---|---|---|---|---|---|---|
| — | 219-981 | 0XXX7XXX · 2 holders which blocks → | INDIANA BELL TEL CO INC | 9325 | GARY | IN |
| — | 219-983 | none assigned yet which blocks → | FRONTIER NORTH, INC.. - IN | 0772 | CHESTERTON | IN |
| — | 219-984 | 1XXX2XXX8XXX9XXX · 4 holders which blocks → | BRIGHTSPEED OF INDIANA, LLC | 0832 | REYNOLDS | IN |
| — | 219-985 | 2XXX3XXX4XXX5XXX · 3 holders which blocks → | INDIANA BELL TEL CO INC | 9325 | GARY | IN |
| — | 219-986 | 1XXX2XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | REMINGTON | IN |
| — | 219-987 | not yet reported which blocks → | NORTHWESTERN INDIANA TEL. CO., INC. | 0800 | DEMOTTE | IN |
| — | 219-988 | not yet reported which blocks → | NORTHWESTERN INDIANA TEL. CO., INC. | 0800 | LKSFRSSONS | IN |
| — | 219-989 | 1XXX5XXX6XXX · 2 holders which blocks → | INDIANA BELL TEL CO INC | 9325 | HAMMOND | IN |
| — | 219-992 | 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX · 8 holders which blocks → | INDIANA BELL TEL CO INC | 9325 | LAKE VLG | IN |
| — | 219-996 | not yet reported which blocks → | NORTHWESTERN INDIANA TEL. CO., INC. | 0800 | HEBRON | IN |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.