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 820
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-01-02 | 820-208-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | ATASCADERO | CA |
| 2024-01-02 | 820-208-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | ATASCADERO | CA |
| 2024-01-02 | 820-800-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | CAYUCOS | CA |
| 2023-12-29 | 820-221-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | SANTAMARIA | CA |
| 2023-12-29 | 820-221-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | SANTAMARIA | CA |
| 2023-12-29 | 820-224-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | NIPOMO | CA |
| 2023-12-29 | 820-224-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | NIPOMO | CA |
| 2023-12-29 | 820-837-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | OXNARD | CA |
| 2023-12-29 | 820-837-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | OXNARD | CA |
| 2023-08-11 | 820-219-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | CONEJO | CA |
| 2023-08-11 | 820-219-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | CONEJO | CA |
| 2023-08-11 | 820-219-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | CONEJO | CA |
| 2023-08-11 | 820-219-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | CONEJO | CA |
| 2023-08-11 | 820-219-4XXX | 4000–4999 | Assigned | COMMIO, LLC | 939H | CONEJO | CA |
| 2023-08-11 | 820-220-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | PIRU | CA |
| 2023-08-11 | 820-220-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | PIRU | CA |
| 2023-08-11 | 820-220-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | PIRU | CA |
| 2023-08-11 | 820-220-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | PIRU | CA |
| 2023-08-11 | 820-220-4XXX | 4000–4999 | Assigned | COMMIO, LLC | 939H | PIRU | CA |
| 2022-11-01 | 820-206-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | PASOROBLES | CA |
| 2022-01-25 | 820-500-6XXX | 6000–6999 | Assigned | COMMIO, LLC | 939H | GAVIOTA | CA |
| 2022-01-25 | 820-800-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | CAYUCOS | CA |
| 2022-01-25 | 820-800-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | CAYUCOS | CA |
| 2021-08-18 | 820-348-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | OXNARD | CA |
| 2021-08-18 | 820-348-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | OXNARD | CA |
| 2021-06-28 | 820-758-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | SANBARBARA | CA |
| 2021-06-28 | 820-758-4XXX | 4000–4999 | Assigned | COMMIO, LLC | 939H | SANBARBARA | CA |
| 2021-06-28 | 820-758-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | SANBARBARA | 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.