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 339
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2022-02-15 | 339-224-9XXX | 9000–9999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | MALDEN | MA |
| 2022-02-09 | 339-463-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | BRAINTREE | MA |
| 2022-02-09 | 339-469-4XXX | 4000–4999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | ROCKLAND | MA |
| 2022-02-09 | 339-746-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | WEYMOUTH | MA |
| 2022-02-03 | 339-226-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | REVERE | MA |
| 2022-02-03 | 339-233-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | BRYANTVL | MA |
| 2022-02-01 | 339-837-4XXX | 4000–4999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | RANDOLPH | MA |
| 2022-01-31 | 339-273-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | MARSHFIELD | MA |
| 2022-01-31 | 339-737-8XXX | 8000–8999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | HANOVER | MA |
| 2022-01-26 | 339-232-8XXX | 8000–8999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | DUXBURY | MA |
| 2022-01-13 | 339-466-3XXX | 3000–3999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | NORWELL | MA |
| 2022-01-13 | 339-675-3XXX | 3000–3999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | WHITMAN | 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.