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 840
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2023-12-29 | 840-229-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | CLAREMONT | CA |
| 2023-12-29 | 840-229-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | CLAREMONT | CA |
| 2023-12-29 | 840-233-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | ARROWHEAD | CA |
| 2023-12-29 | 840-237-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | ONTARIO | CA |
| 2023-12-29 | 840-237-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | ONTARIO | CA |
| 2023-12-29 | 840-241-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | RIALTO | CA |
| 2023-12-29 | 840-241-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | RIALTO | CA |
| 2023-12-29 | 840-242-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | UPLAND | CA |
| 2023-12-29 | 840-242-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | UPLAND | CA |
| 2023-12-29 | 840-245-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | REDLANDS | CA |
| 2023-12-29 | 840-245-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | REDLANDS | CA |
| 2023-12-29 | 840-245-4XXX | 4000–4999 | Assigned | COMMIO, LLC | 939H | REDLANDS | CA |
| 2023-12-29 | 840-245-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | REDLANDS | CA |
| 2023-12-29 | 840-245-6XXX | 6000–6999 | Assigned | COMMIO, LLC | 939H | REDLANDS | CA |
| 2023-12-29 | 840-245-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | REDLANDS | CA |
| 2023-12-29 | 840-247-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | HIGHLAND | CA |
| 2023-12-29 | 840-247-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | HIGHLAND | CA |
| 2023-12-29 | 840-247-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | HIGHLAND | CA |
| 2023-12-29 | 840-247-4XXX | 4000–4999 | Assigned | COMMIO, LLC | 939H | HIGHLAND | CA |
| 2023-12-29 | 840-248-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | FONTANA | CA |
| 2023-12-29 | 840-248-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | FONTANA | CA |
| 2023-12-29 | 840-248-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | FONTANA | CA |
| 2023-12-29 | 840-284-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | CHINO | CA |
| 2023-12-29 | 840-284-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | CHINO | CA |
| 2023-08-11 | 840-235-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | COLTON | CA |
| 2023-08-11 | 840-235-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | COLTON | CA |
| 2023-08-11 | 840-235-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | COLTON | CA |
| 2023-08-11 | 840-235-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | COLTON | CA |
| 2023-08-11 | 840-235-4XXX | 4000–4999 | Assigned | COMMIO, LLC | 939H | COLTON | CA |
| 2022-10-13 | 840-219-4XXX | 4000–4999 | Assigned | COMMIO, LLC | 939H | CALIMESA | CA |
| 2021-09-15 | 840-800-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | UPLAND | CA |
| 2021-09-15 | 840-977-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | CLAREMONT | CA |
| 2021-09-15 | 840-977-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | CLAREMONT | CA |
| 2021-09-15 | 840-977-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | CLAREMONT | CA |
| 2021-09-15 | 840-977-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | CLAREMONT | CA |
| 2021-09-15 | 840-977-4XXX | 4000–4999 | Assigned | COMMIO, LLC | 939H | CLAREMONT | CA |
| 2021-09-15 | 840-977-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | CLAREMONT | CA |
| 2021-09-15 | 840-999-4XXX | 4000–4999 | Assigned | COMMIO, LLC | 939H | UPLAND | CA |
| 2021-09-14 | 840-300-4XXX | 4000–4999 | Assigned | COMMIO, LLC | 939H | REDLANDS | CA |
| 2021-09-14 | 840-300-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | REDLANDS | CA |
| 2021-09-14 | 840-300-6XXX | 6000–6999 | Assigned | COMMIO, LLC | 939H | REDLANDS | CA |
| 2021-09-14 | 840-799-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | RIALTO | CA |
| 2021-09-14 | 840-799-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | RIALTO | CA |
| 2021-09-14 | 840-799-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | RIALTO | CA |
| 2021-09-14 | 840-799-4XXX | 4000–4999 | Assigned | COMMIO, LLC | 939H | RIALTO | CA |
| 2021-09-14 | 840-799-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | RIALTO | CA |
| 2021-09-14 | 840-899-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | HIGHLAND | CA |
| 2021-09-14 | 840-899-6XXX | 6000–6999 | Assigned | COMMIO, LLC | 939H | HIGHLAND | CA |
| 2021-09-14 | 840-899-7XXX | 7000–7999 | Assigned | COMMIO, LLC | 939H | HIGHLAND | CA |
| 2021-09-14 | 840-899-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | HIGHLAND | 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.