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 |
|---|---|---|---|---|---|---|
| — | 818-972 | not yet reported which blocks → | PACIFIC BELL | 9740 | BRBN BRBN | CA |
| — | 818-973 | not yet reported which blocks → | PACIFIC BELL | 9740 | BRBN BRBN | CA |
| — | 818-980 | not yet reported which blocks → | PACIFIC BELL | 9740 | NO HOLLYWD | CA |
| — | 818-981 | not yet reported which blocks → | PACIFIC BELL | 9740 | VAN NUYS | CA |
| — | 818-982 | not yet reported which blocks → | PACIFIC BELL | 9740 | NO HOLLYWD | CA |
| — | 818-983 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | PACIFIC BELL | 9740 | VAN NUYS | CA |
| — | 818-984 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | PACIFIC BELL | 9740 | VAN NUYS | CA |
| — | 818-985 | not yet reported which blocks → | PACIFIC BELL | 9740 | NO HOLLYWD | CA |
| — | 818-986 | not yet reported which blocks → | PACIFIC BELL | 9740 | VAN NUYS | CA |
| — | 818-987 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → | PACIFIC BELL | 9740 | VAN NUYS | CA |
| — | 818-988 | not yet reported which blocks → | PACIFIC BELL | 9740 | VAN NUYS | CA |
| — | 818-989 | not yet reported which blocks → | PACIFIC BELL | 9740 | VAN NUYS | CA |
| — | 818-990 | not yet reported which blocks → | PACIFIC BELL | 9740 | VAN NUYS | CA |
| — | 818-991 | not yet reported which blocks → | PACIFIC BELL | 9740 | AGOURA | CA |
| — | 818-992 | not yet reported which blocks → | PACIFIC BELL | 9740 | CANOGAPARK | CA |
| — | 818-993 | 2XXX which blocks → | PACIFIC BELL | 9740 | NORTHRIDGE | CA |
| — | 818-994 | not yet reported which blocks → | PACIFIC BELL | 9740 | VAN NUYS | CA |
| — | 818-995 | not yet reported which blocks → | PACIFIC BELL | 9740 | VAN NUYS | CA |
| — | 818-996 | not yet reported which blocks → | PACIFIC BELL | 9740 | RESEDA | CA |
| — | 818-997 | not yet reported which blocks → | PACIFIC BELL | 9740 | VAN NUYS | CA |
| — | 818-998 | not yet reported which blocks → | PACIFIC BELL | 9740 | NORTHRIDGE | CA |
| — | 818-999 | not yet reported which blocks → | PACIFIC BELL | 9740 | CANOGAPARK | 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.