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 304
New assignments by month
Sep 2026
Aug 2026
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Jun 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2016-09-28 | 304-303-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | RIDGELEY | WV |
| 2016-09-28 | 304-355-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | PIEDMONT | WV |
| 2016-09-28 | 304-821-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | INWOOD | WV |
| 2016-09-28 | 304-870-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SHEPHEDSTN | WV |
| 2016-09-26 | 304-500-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BERKELYSPG | WV |
| 2016-09-26 | 304-693-5XXX | 5000–5999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | GORMANIA | WV |
| 2016-09-26 | 304-930-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CHARLES TN | WV |
| 2016-08-05 | 304-908-2XXX | 2000–2999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | HNTNGTNZN4 | WV |
| 2016-07-29 | 304-955-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | HNTNGTNZN2 | WV |
| 2015-09-01 | 304-200-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WILLIAMSTN | WV |
| 2015-09-01 | 304-245-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | VAN | WV |
| 2015-09-01 | 304-247-4XXX | 4000–4999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WHARTON | WV |
| 2015-09-01 | 304-272-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WAYNE | WV |
| 2015-09-01 | 304-443-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WILLIAMSON | WV |
| 2015-09-01 | 304-464-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | VALLEY ML | WV |
| 2015-09-01 | 304-577-3XXX | 3000–3999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WALTON | WV |
| 2015-09-01 | 304-936-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WINFIELD | WV |
| 2015-08-31 | 304-390-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | MILTON | WV |
| 2015-08-31 | 304-426-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | MATEWAN | WV |
| 2015-08-31 | 304-440-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | RAVENSWOOD | WV |
| 2015-08-31 | 304-484-8XXX | 8000–8999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | MDW BRIDGE | WV |
| 2015-08-31 | 304-486-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | PRICHARD | WV |
| 2015-08-31 | 304-519-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SPENCER | WV |
| 2015-08-31 | 304-659-8XXX | 8000–8999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | PENNSBORO | WV |
| 2015-08-31 | 304-732-4XXX | 4000–4999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | PINEVILLE | WV |
| 2015-08-31 | 304-762-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | UNIONRIDGE | WV |
| 2015-08-31 | 304-773-4XXX | 4000–4999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | MASON | WV |
| 2015-08-31 | 304-792-5XXX | 5000–5999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | LOGAN | WV |
| 2015-08-31 | 304-837-9XXX | 9000–9999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SETH | WV |
| 2015-08-31 | 304-861-9XXX | 9000–9999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | PRKRSBGZN3 | WV |
| 2015-08-31 | 304-994-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | PETERSTOWN | WV |
| 2015-08-28 | 304-310-5XXX | 5000–5999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CHAPMANVL | WV |
| 2015-08-28 | 304-513-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CHRLSTNZN4 | WV |
| 2015-08-28 | 304-576-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | APPLEGROVE | WV |
| 2015-08-28 | 304-721-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CHRLSTNZN5 | WV |
| 2015-08-28 | 304-778-5XXX | 5000–5999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BRANCHLAND | WV |
| 2015-08-28 | 304-779-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ALLOY | WV |
| 2015-08-28 | 304-814-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BUFFALO | WV |
| 2015-08-28 | 304-833-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BRUSHTON | WV |
| 2015-08-28 | 304-915-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CHRLSTNZN7 | WV |
| 2015-08-28 | 304-935-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CHRLSTNZN3 | WV |
| 2015-08-28 | 304-967-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BRADSHAW | WV |
| 2015-08-28 | 304-988-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CHRLSTNZN2 | WV |
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.