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 409
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2018-03-28 | 409-941-4XXX | 4000–4999 | Assigned | FOREMOST TELECOMMUNICATIONS CORPORATION - TX | 319D | TXSCYMARQU | TX |
| 2013-12-02 | 409-205-4XXX | 4000–4999 | Assigned | FOREMOST TELECOMMUNICATIONS CORPORATION - TX | 319D | SABINEPASS | TX |
| 2013-10-28 | 409-999-4XXX | 4000–4999 | Assigned | FOREMOST TELECOMMUNICATIONS CORPORATION - TX | 319D | PORTARTHUR | TX |
| 2013-10-28 | 409-999-9XXX | 9000–9999 | Assigned | FOREMOST TELECOMMUNICATIONS CORPORATION - TX | 319D | PORTARTHUR | TX |
| 2013-10-22 | 409-386-3XXX | 3000–3999 | Assigned | FOREMOST TELECOMMUNICATIONS CORPORATION - TX | 319D | SILSBEE | TX |
| 2013-10-22 | 409-519-4XXX | 4000–4999 | Assigned | FOREMOST TELECOMMUNICATIONS CORPORATION - TX | 319D | NDLDPTNCHS | TX |
| 2013-10-22 | 409-786-7XXX | 7000–7999 | Assigned | FOREMOST TELECOMMUNICATIONS CORPORATION - TX | 319D | VIDOR | TX |
| 2013-10-21 | 409-202-4XXX | 4000–4999 | Assigned | FOREMOST TELECOMMUNICATIONS CORPORATION - TX | 319D | JASPER | TX |
| 2013-10-21 | 409-227-7XXX | 7000–7999 | Assigned | FOREMOST TELECOMMUNICATIONS CORPORATION - TX | 319D | LUMBERTON | TX |
| 2013-10-21 | 409-238-8XXX | 8000–8999 | Assigned | FOREMOST TELECOMMUNICATIONS CORPORATION - TX | 319D | ORANGE | TX |
| 2013-10-21 | 409-400-0XXX | 0000–0999 | Assigned | FOREMOST TELECOMMUNICATIONS CORPORATION - TX | 319D | WINNIE | TX |
| 2013-10-21 | 409-474-4XXX | 4000–4999 | Assigned | FOREMOST TELECOMMUNICATIONS CORPORATION - TX | 319D | BRIDGECITY | TX |
| 2013-10-21 | 409-777-7XXX | 7000–7999 | Assigned | FOREMOST TELECOMMUNICATIONS CORPORATION - TX | 319D | PT BOLIVAR | TX |
| 2013-04-16 | 409-888-8XXX | 8000–8999 | Assigned | FOREMOST TELECOMMUNICATIONS CORPORATION - TX | 319D | GALVESTON | TX |
| 2013-02-04 | 409-444-4XXX | 4000–4999 | Assigned | FOREMOST TELECOMMUNICATIONS CORPORATION - TX | 319D | BEAUMONT | 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.