NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
Most active assignees, all time — NPA 413
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2022-03-22 | 413-463-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | SPRINGFLD | MA |
| 2022-03-22 | 413-946-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | HINSDALE | MA |
| 2022-03-14 | 413-646-4XXX | 4000–4999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | MILLERSFLS | MA |
| 2022-02-28 | 413-673-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | GREATBNGTN | MA |
| 2022-02-24 | 413-966-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | NORTHAMPTN | MA |
| 2022-02-23 | 413-843-3XXX | 3000–3999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | LENOX | MA |
| 2022-02-23 | 413-872-2XXX | 2000–2999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | DALTON | MA |
| 2022-02-23 | 413-933-3XXX | 3000–3999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | MONROE BDG | MA |
| 2022-02-17 | 413-742-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | ASHFIELD | MA |
| 2022-02-17 | 413-833-3XXX | 3000–3999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | BERNARDSTN | MA |
| 2022-02-17 | 413-942-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | COLRAIN | MA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.