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 |
|---|---|---|---|---|---|---|
| 2013-05-24 | 814-315 | 0–9 XXXall 10 · 4 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | ERIE | PA |
| 2009-02-04 | 814-426 | 0–9 XXXall 10 · 5 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | MILLPORT | PA |
| 2007-10-22 | 814-904 | 1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 2 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | SHINGLEHOS | PA |
| 2007-03-07 | 814-840 | 0–9 XXXall 10 · 7 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | FAIRVIEW | PA |
| 2007-02-26 | 814-859 | 1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 5 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | ALBION | PA |
| 2007-02-26 | 814-909 | 1XXX which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | WSPRINGFLD | PA |
| — | 814-302 | 0XXX1XXX2XXX4XXX6XXX · 3 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | ELKLAND | PA |
| — | 814-306 | none assigned yet which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | CONNEAUTVL | PA |
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.