NumberResearchRecent prefix assignments
0 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 |
|---|---|---|---|---|---|---|
| — | 217-309 | 0XXX2XXX8XXX · 3 holders which blocks → | TELNYX LLC | 073H | FARMERSVL | IL |
| — | 217-340 | 0–9 XXXall 10 · 5 holders which blocks → | TELNYX LLC | 073H | MARSHALL | IL |
| — | 217-401 | 0XXX1XXX2XXX3XXX9XXX · 4 holders which blocks → | TELNYX LLC | 073H | BLUFFS | IL |
| — | 217-574 | 0–9 XXXall 10 · 7 holders which blocks → | TELNYX LLC | 073H | FAIRMOUNT | IL |
| — | 217-655 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | TELNYX LLC | 073H | DANVILLE | IL |
| — | 217-906 | 0–9 XXXall 10 · 6 holders which blocks → | TELNYX LLC | 073H | BUFFALO | IL |
| — | 217-917 | 2XXX3XXX5XXX9XXX · 3 holders which blocks → | TELNYX LLC | 073H | DECATUR | IL |
| — | 217-952 | 0–9 XXXall 10 · 7 holders which blocks → | TELNYX LLC | 073H | ATHENS | IL |
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.