NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/24/2026
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.
Most active assignees, all time — NPA 973
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 973-403 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | CALDWELL | NJ |
| — | 973-408 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | MADISON | NJ |
| — | 973-410 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | MADISON | NJ |
| — | 973-412 | 3XXX5XXX6XXX · 2 holders which blocks → | VERIZON NEW JERSEY, INC. | 9206 | NEWARK | NJ |
| — | 973-414 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | ORANGE | NJ |
| — | 973-416 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | NEWARK | NJ |
| — | 973-421 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | NEWARK | NJ |
| — | 973-422 | 8XXX which blocks → | VERIZON NEW JERSEY, INC. | 9206 | LIVINGSTON | NJ |
| — | 973-423 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | HAWTHORNE | NJ |
| — | 973-424 | 3XXX7XXX · 2 holders which blocks → | VERIZON NEW JERSEY, INC. | 9206 | NEWARK | NJ |
| — | 973-425 | 5XXX which blocks → | VERIZON NEW JERSEY, INC. | 9206 | BERNARDSVL | NJ |
| — | 973-426 | 3XXX which blocks → | VERIZON NEW JERSEY, INC. | 9206 | NETCONG | NJ |
| — | 973-427 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | HAWTHORNE | NJ |
| — | 973-428 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | WHIPPANY | NJ |
| — | 973-429 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | BLOOMFIELD | NJ |
| — | 973-430 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | NEWARK | NJ |
| — | 973-438 | 0XXX8XXX which blocks → | VERIZON NEW JERSEY, INC. | 9206 | NEWARK | NJ |
| — | 973-439 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | CALDWELL | NJ |
| — | 973-442 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | DOVER | NJ |
| — | 973-443 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | MADISON | NJ |
| — | 973-448 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | NETCONG | NJ |
| — | 973-450 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | BELLEVILLE | NJ |
| — | 973-451 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | MORRISTOWN | NJ |
| — | 973-455 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | MORRISTOWN | NJ |
| — | 973-456 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | NEWARK | NJ |
| — | 973-458 | 2XXX3XXX which blocks → | VERIZON NEW JERSEY, INC. | 9206 | PASSAIC | NJ |
| — | 973-463 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | WHIPPANY | NJ |
| — | 973-465 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | NEWARK | NJ |
| — | 973-466 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | NEWARK | NJ |
| — | 973-467 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | MILLBURN | NJ |
| — | 973-468 | 5XXX which blocks → | VERIZON NEW JERSEY, INC. | 9206 | NEWARK | NJ |
| — | 973-470 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | PASSAIC | NJ |
| — | 973-471 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | PASSAIC | NJ |
| — | 973-472 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | PASSAIC | NJ |
| — | 973-473 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | PASSAIC | NJ |
| — | 973-478 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | PASSAIC | NJ |
| — | 973-480 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | NEWARK | NJ |
| — | 973-481 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | NEWARK | NJ |
| — | 973-482 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | NEWARK | NJ |
| — | 973-483 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | NEWARK | NJ |
| — | 973-484 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | NEWARK | NJ |
| — | 973-485 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | NEWARK | NJ |
| — | 973-487 | 0XXX1XXX3XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | VERIZON NEW JERSEY, INC. | 9206 | CALDWELL | NJ |
| — | 973-490 | 2XXX4XXX · 2 holders which blocks → | VERIZON NEW JERSEY, INC. | 9206 | MORRISTOWN | NJ |
| — | 973-491 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | NEWARK | NJ |
| — | 973-492 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | BUTLER | NJ |
| — | 973-497 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | NEWARK | NJ |
| — | 973-503 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | WHIPPANY | NJ |
| — | 973-504 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | NEWARK | NJ |
| — | 973-509 | not yet reported which blocks → | VERIZON NEW JERSEY, INC. | 9206 | BLOOMFIELD | NJ |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/24/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.