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 530
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2022-03-14 | 530-772-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | CHALLENGE | CA |
| 2022-03-14 | 530-969-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | NTAH BCWY | CA |
| 2022-03-07 | 530-989-8XXX | 8000–8999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | NORTH YUBA | CA |
| 2022-03-01 | 530-928-8XXX | 8000–8999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | GERBER | CA |
| 2022-02-25 | 530-910-0XXX | 0000–0999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | HAYFORK | CA |
| 2022-02-25 | 530-970-0XXX | 0000–0999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | SODA SPG | CA |
| 2022-02-23 | 530-880-0XXX | 0000–0999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | ORLAND | CA |
| 2022-02-23 | 530-967-5XXX | 5000–5999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | PLVL SOUTH | CA |
| 2022-02-18 | 530-942-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | SIERRAVL | CA |
| 2021-10-21 | 530-451-9XXX | 9000–9999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | SMARTSVL | CA |
| 2021-10-13 | 530-687-1XXX | 1000–1999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | NEVADACITY | CA |
| 2021-10-12 | 530-651-2XXX | 2000–2999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | PLVL WEST | CA |
| 2021-10-01 | 530-977-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | AUBN NORTH | CA |
| 2021-09-24 | 530-699-2XXX | 2000–2999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | DUNNIGAN | CA |
| 2021-09-16 | 530-835-9XXX | 9000–9999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | NOSAN JUAN | CA |
| 2021-09-15 | 530-289-9XXX | 9000–9999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | DOWNIEVL | CA |
| 2021-09-10 | 530-785-4XXX | 4000–4999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | AUBN MAIN | CA |
| 2021-04-17 | 530-866-2XXX | 2000–2999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | COLFAX | CA |
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.