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 |
|---|---|---|---|---|---|---|
| — | 714-973 | not yet reported which blocks → | PACIFIC BELL | 9740 | SANTA ANA | CA |
| — | 714-974 | not yet reported which blocks → | PACIFIC BELL | 9740 | ORANGE | CA |
| — | 714-977 | not yet reported which blocks → | PACIFIC BELL | 9740 | SANTA ANA | CA |
| — | 714-978 | 4XXX which blocks → | PACIFIC BELL | 9740 | ORANGE | CA |
| — | 714-979 | not yet reported which blocks → | PACIFIC BELL | 9740 | SANTA ANA | CA |
| — | 714-980 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 3 holders which blocks → | PACIFIC BELL | 9740 | GARDEN GRV | CA |
| — | 714-985 | 6XXX which blocks → | PACIFIC BELL | 9740 | PLACENTIA | CA |
| — | 714-986 | 0XXX4XXX5XXX6XXX · 3 holders which blocks → | PACIFIC BELL | 9740 | PLACENTIA | CA |
| — | 714-990 | not yet reported which blocks → | PACIFIC BELL | 9740 | BREA | CA |
| — | 714-991 | not yet reported which blocks → | PACIFIC BELL | 9740 | ANAHEIM | CA |
| — | 714-992 | not yet reported which blocks → | PACIFIC BELL | 9740 | FULLERTON | CA |
| — | 714-993 | not yet reported which blocks → | PACIFIC BELL | 9740 | PLACENTIA | CA |
| — | 714-994 | not yet reported which blocks → | PACIFIC BELL | 9740 | BUENA PARK | CA |
| — | 714-995 | not yet reported which blocks → | PACIFIC BELL | 9740 | CYPRESS | CA |
| — | 714-996 | not yet reported which blocks → | PACIFIC BELL | 9740 | PLACENTIA | CA |
| — | 714-997 | not yet reported which blocks → | PACIFIC BELL | 9740 | ORANGE | CA |
| — | 714-998 | not yet reported which blocks → | PACIFIC BELL | 9740 | ORANGE | CA |
| — | 714-999 | not yet reported which blocks → | PACIFIC BELL | 9740 | ANAHEIM | 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.