NumberResearchRecent thousands-block assignments
20 blocks assigned in August 2026 · from the daily NANPA thousands-block report, 09/20/2026
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, August 2026 — NPA 341
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-08-27 | 341-256-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | OKLD FRTVL | CA |
| 2026-08-27 | 341-388-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | RICHMOND | CA |
| 2026-08-27 | 341-388-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | RICHMOND | CA |
| 2026-08-27 | 341-388-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | RICHMOND | CA |
| 2026-08-19 | 341-266-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | OKLD BKLY | CA |
| 2026-08-19 | 341-266-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | OKLD BKLY | CA |
| 2026-08-18 | 341-245-5XXX | 5000–5999 | Assigned | HD CARRIER LLC | 321J | HAYWARD | CA |
| 2026-08-18 | 341-245-6XXX | 6000–6999 | Assigned | HD CARRIER LLC | 321J | HAYWARD | CA |
| 2026-08-14 | 341-267-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | OKLD TRNID | CA |
| 2026-08-14 | 341-267-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | OKLD TRNID | CA |
| 2026-08-14 | 341-267-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | OKLD TRNID | CA |
| 2026-08-14 | 341-268-7XXX | 7000–7999 | Assigned | EXIANT COMMUNICATIONS LLC | 114J | FRNK OLIVR | CA |
| 2026-08-14 | 341-268-8XXX | 8000–8999 | Assigned | EXIANT COMMUNICATIONS LLC | 114J | FRNK OLIVR | CA |
| 2026-08-14 | 341-268-9XXX | 9000–9999 | Assigned | EXIANT COMMUNICATIONS LLC | 114J | FRNK OLIVR | CA |
| 2026-08-11 | 341-245-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | HAYWARD | CA |
| 2026-08-11 | 341-245-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | HAYWARD | CA |
| 2026-08-07 | 341-266-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | OKLD BKLY | CA |
| 2026-08-07 | 341-269-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | FRNK MAIN | CA |
| 2026-08-07 | 341-269-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | FRNK MAIN | CA |
| 2026-08-06 | 341-263-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | FRNK MAIN | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.