NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · 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, all time — NPA 346
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-08-01 | 346-658-5XXX | 5000–5999 | Assigned | VONAGE AMERICA LLC | 197D | RICHMNRNBG | TX |
| 2023-10-27 | 346-736-1XXX | 1000–1999 | Assigned | VONAGE AMERICA LLC | 197D | PORTER | TX |
| 2023-09-14 | 346-510-2XXX | 2000–2999 | Assigned | VONAGE AMERICA LLC | 197D | HOUSTON | TX |
| 2022-08-16 | 346-385-8XXX | 8000–8999 | Assigned | VONAGE AMERICA LLC | 197D | FRIENDSWD | TX |
| 2021-05-06 | 346-468-1XXX | 1000–1999 | Assigned | VONAGE AMERICA LLC | 197D | TOMBALL | TX |
| 2021-05-06 | 346-470-2XXX | 2000–2999 | Assigned | VONAGE AMERICA LLC | 197D | HUMBLE | TX |
| 2021-05-05 | 346-459-6XXX | 6000–6999 | Assigned | VONAGE AMERICA LLC | 197D | SPRING | TX |
| 2020-10-02 | 346-438-6XXX | 6000–6999 | Assigned | VONAGE AMERICA LLC | 197D | HOUSTON | TX |
| 2020-04-30 | 346-393-7XXX | 7000–7999 | Assigned | VONAGE AMERICA LLC | 197D | STAFFORD | TX |
| 2020-04-30 | 346-393-8XXX | 8000–8999 | Assigned | VONAGE AMERICA LLC | 197D | STAFFORD | TX |
| 2020-04-30 | 346-424-0XXX | 0000–0999 | Assigned | VONAGE AMERICA LLC | 197D | SATSUMA | TX |
| 2020-04-30 | 346-424-1XXX | 1000–1999 | Assigned | VONAGE AMERICA LLC | 197D | SATSUMA | TX |
| 2020-04-30 | 346-425-3XXX | 3000–3999 | Assigned | VONAGE AMERICA LLC | 197D | LANGHAMCRK | TX |
| 2020-04-30 | 346-425-4XXX | 4000–4999 | Assigned | VONAGE AMERICA LLC | 197D | LANGHAMCRK | TX |
| 2020-04-29 | 346-427-1XXX | 1000–1999 | Assigned | VONAGE AMERICA LLC | 197D | APOLLO | TX |
| 2020-04-29 | 346-427-2XXX | 2000–2999 | Assigned | VONAGE AMERICA LLC | 197D | APOLLO | TX |
| 2020-04-28 | 346-337-9XXX | 9000–9999 | Assigned | VONAGE AMERICA LLC | 197D | CYPRESS | TX |
| 2020-04-28 | 346-389-2XXX | 2000–2999 | Assigned | VONAGE AMERICA LLC | 197D | BEACH CITY | TX |
| 2020-04-28 | 346-389-3XXX | 3000–3999 | Assigned | VONAGE AMERICA LLC | 197D | BEACH CITY | TX |
| 2020-04-28 | 346-418-4XXX | 4000–4999 | Assigned | VONAGE AMERICA LLC | 197D | BAMMEL | TX |
| 2020-04-28 | 346-418-5XXX | 5000–5999 | Assigned | VONAGE AMERICA LLC | 197D | BAMMEL | TX |
| 2020-04-28 | 346-567-2XXX | 2000–2999 | Assigned | VONAGE AMERICA LLC | 197D | MONTBLVIEU | TX |
| 2020-04-28 | 346-567-3XXX | 3000–3999 | Assigned | VONAGE AMERICA LLC | 197D | MONTBLVIEU | TX |
| 2020-04-28 | 346-732-3XXX | 3000–3999 | Assigned | VONAGE AMERICA LLC | 197D | CYPRESS | TX |
| 2018-12-17 | 346-374-0XXX | 0000–0999 | Assigned | VONAGE AMERICA LLC | 197D | HSTNSUBURB | TX |
| 2018-12-17 | 346-374-1XXX | 1000–1999 | Assigned | VONAGE AMERICA LLC | 197D | HSTNSUBURB | TX |
| 2018-12-17 | 346-374-2XXX | 2000–2999 | Assigned | VONAGE AMERICA LLC | 197D | HSTNSUBURB | TX |
| 2018-12-17 | 346-374-3XXX | 3000–3999 | Assigned | VONAGE AMERICA LLC | 197D | HSTNSUBURB | TX |
| 2018-12-17 | 346-374-4XXX | 4000–4999 | Assigned | VONAGE AMERICA LLC | 197D | HSTNSUBURB | TX |
| 2018-12-17 | 346-374-5XXX | 5000–5999 | Assigned | VONAGE AMERICA LLC | 197D | HSTNSUBURB | TX |
| 2018-11-07 | 346-357-0XXX | 0000–0999 | Assigned | VONAGE AMERICA LLC | 197D | HSTNSUBURB | TX |
| 2018-11-07 | 346-357-1XXX | 1000–1999 | Assigned | VONAGE AMERICA LLC | 197D | HSTNSUBURB | TX |
| 2018-11-07 | 346-357-2XXX | 2000–2999 | Assigned | VONAGE AMERICA LLC | 197D | HSTNSUBURB | TX |
| 2017-06-26 | 346-250-8XXX | 8000–8999 | Assigned | VONAGE AMERICA LLC | 197D | HOUSTON | TX |
| 2017-05-03 | 346-250-0XXX | 0000–0999 | Assigned | VONAGE AMERICA LLC | 197D | HOUSTON | TX |
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.