NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/26/2026
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 681
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2017-11-06 | 681-344-7XXX | 7000–7999 | Assigned | FRONTIER WEST VIRGINIA INC. | 9214 | CHRLSTNZN1 | WV |
| 2014-12-26 | 681-842-3XXX | 3000–3999 | Assigned | FRONTIER WEST VIRGINIA INC. | 9214 | BRIDGEPORT | WV |
| 2012-05-08 | 681-260-7XXX | 7000–7999 | Assigned | FRONTIER WEST VIRGINIA INC. | 9214 | MARTINSBG | WV |
| 2012-05-08 | 681-622-7XXX | 7000–7999 | Assigned | FRONTIER WEST VIRGINIA INC. | 9214 | CLARKSBURG | WV |
| 2011-08-03 | 681-340-4XXX | 4000–4999 | Assigned | FRONTIER WEST VIRGINIA INC. | 9214 | CHRLSTNZN1 | WV |
| 2009-03-30 | 681-342-0XXX | 0000–0999 | Assigned | FRONTIER WEST VIRGINIA INC. | 9214 | BRIDGEPORT | WV |
| 2009-03-30 | 681-342-1XXX | 1000–1999 | Assigned | FRONTIER WEST VIRGINIA INC. | 9214 | BRIDGEPORT | WV |
| 2009-03-30 | 681-342-2XXX | 2000–2999 | Assigned | FRONTIER WEST VIRGINIA INC. | 9214 | BRIDGEPORT | WV |
| 2009-03-30 | 681-342-3XXX | 3000–3999 | Assigned | FRONTIER WEST VIRGINIA INC. | 9214 | BRIDGEPORT | WV |
| 2009-03-30 | 681-342-4XXX | 4000–4999 | Assigned | FRONTIER WEST VIRGINIA INC. | 9214 | BRIDGEPORT | WV |
| 2009-03-30 | 681-342-5XXX | 5000–5999 | Assigned | FRONTIER WEST VIRGINIA INC. | 9214 | BRIDGEPORT | WV |
| 2009-03-30 | 681-342-6XXX | 6000–6999 | Assigned | FRONTIER WEST VIRGINIA INC. | 9214 | BRIDGEPORT | WV |
| 2009-03-30 | 681-342-7XXX | 7000–7999 | Assigned | FRONTIER WEST VIRGINIA INC. | 9214 | BRIDGEPORT | WV |
| 2009-03-30 | 681-342-8XXX | 8000–8999 | Assigned | FRONTIER WEST VIRGINIA INC. | 9214 | BRIDGEPORT | WV |
| 2009-03-30 | 681-342-9XXX | 9000–9999 | Assigned | FRONTIER WEST VIRGINIA INC. | 9214 | BRIDGEPORT | WV |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.