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 |
|---|---|---|---|---|---|---|
| 2007-06-22 | 714-248 | 0–9 XXXall 10 · 6 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | WESTMINSTR | CA |
| 2006-12-11 | 714-361 | 0–9 XXXall 10 · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SANTA ANA | CA |
| 2005-10-18 | 714-702 | 0–9 XXXall 10 · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | WESTMINSTR | CA |
| 2005-09-23 | 714-656 | 0–9 XXXall 10 · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SANTA ANA | CA |
| — | 714-249 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | BUENA PARK | CA |
| — | 714-262 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | ANAHEIM | CA |
| — | 714-362 | 1XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | HUNTITNBCH | CA |
| — | 714-408 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | ANAHEIM | CA |
| — | 714-421 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX which blocks → | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | HUNTITNBCH | CA |
| — | 714-442 | 5XXX which blocks → | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SANTA ANA | CA |
| — | 714-465 | 0–9 XXXall 10 · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | HUNTITNBCH | CA |
| — | 714-515 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | FULLERTON | CA |
| — | 714-581 | 0–9 XXXall 10 · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SANTA ANA | CA |
| — | 714-706 | 0XXX1XXX2XXX3XXX5XXX7XXX8XXX · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | BREA | CA |
| — | 714-786 | 0XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | GARDEN GRV | CA |
| — | 714-876 | 2XXX3XXX4XXX5XXX7XXX8XXX · 3 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | ANAHEIM | CA |
| — | 714-881 | 4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SANTA ANA | CA |
| — | 714-882 | 0–9 XXXall 10 · 7 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | FULLERTON | CA |
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.