NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/24/2026
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 540
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2010-12-08 | 540-259-6XXX | 6000–6999 | Assigned | VERIZON VIRGINIA, INC. | 9213 | MINERAL | VA |
| 2010-09-28 | 540-524-3XXX | 3000–3999 | Assigned | VERIZON VIRGINIA, INC. | 9213 | ROANOKE | VA |
| 2010-09-28 | 540-524-4XXX | 4000–4999 | Assigned | VERIZON VIRGINIA, INC. | 9213 | ROANOKE | VA |
| 2010-09-28 | 540-524-5XXX | 5000–5999 | Assigned | VERIZON VIRGINIA, INC. | 9213 | ROANOKE | VA |
| 2010-09-28 | 540-524-6XXX | 6000–6999 | Assigned | VERIZON VIRGINIA, INC. | 9213 | ROANOKE | VA |
| 2010-09-28 | 540-524-7XXX | 7000–7999 | Assigned | VERIZON VIRGINIA, INC. | 9213 | ROANOKE | VA |
| 2010-02-19 | 540-422-7XXX | 7000–7999 | Assigned | VERIZON VIRGINIA, INC. | 9213 | WARRENTON | VA |
| 2010-02-19 | 540-422-8XXX | 8000–8999 | Assigned | VERIZON VIRGINIA, INC. | 9213 | WARRENTON | VA |
| 2008-08-11 | 540-693-9XXX | 9000–9999 | Assigned | VERIZON VIRGINIA, INC. | 9213 | FREDECKSBG | VA |
| 2008-05-14 | 540-526-1XXX | 1000–1999 | Assigned | VERIZON VIRGINIA, INC. | 9213 | ROANOKE | VA |
| 2008-05-14 | 540-526-2XXX | 2000–2999 | Assigned | VERIZON VIRGINIA, INC. | 9213 | ROANOKE | VA |
| 2008-02-12 | 540-686-3XXX | 3000–3999 | Assigned | VERIZON VIRGINIA, INC. | 9213 | WINCHESTER | VA |
| 2008-02-12 | 540-686-4XXX | 4000–4999 | Assigned | VERIZON VIRGINIA, INC. | 9213 | WINCHESTER | VA |
| 2007-08-29 | 540-359-7XXX | 7000–7999 | Assigned | VERIZON VIRGINIA, INC. | 9213 | WARRENTON | VA |
| 2007-02-14 | 540-316-2XXX | 2000–2999 | Assigned | VERIZON VIRGINIA, INC. | 9213 | WARRENTON | VA |
| 2007-02-14 | 540-316-3XXX | 3000–3999 | Assigned | VERIZON VIRGINIA, INC. | 9213 | WARRENTON | VA |
| 2007-02-14 | 540-316-4XXX | 4000–4999 | Assigned | VERIZON VIRGINIA, INC. | 9213 | WARRENTON | VA |
| 2007-02-14 | 540-316-5XXX | 5000–5999 | Assigned | VERIZON VIRGINIA, INC. | 9213 | WARRENTON | VA |
| 2007-02-14 | 540-504-6XXX | 6000–6999 | Assigned | VERIZON VIRGINIA, INC. | 9213 | WINCHESTER | VA |
| 2006-06-05 | 540-504-3XXX | 3000–3999 | Assigned | VERIZON VIRGINIA, INC. | 9213 | WINCHESTER | VA |
| 2006-06-05 | 540-504-4XXX | 4000–4999 | Assigned | VERIZON VIRGINIA, INC. | 9213 | WINCHESTER | VA |
| 2006-06-05 | 540-504-5XXX | 5000–5999 | Assigned | VERIZON VIRGINIA, INC. | 9213 | WINCHESTER | VA |
| 2006-05-03 | 540-504-1XXX | 1000–1999 | Assigned | VERIZON VIRGINIA, INC. | 9213 | WINCHESTER | VA |
| 2006-05-03 | 540-504-2XXX | 2000–2999 | Assigned | VERIZON VIRGINIA, INC. | 9213 | WINCHESTER | VA |
| 2004-11-24 | 540-507-7XXX | 7000–7999 | Assigned | VERIZON VIRGINIA, INC. | 9213 | SPOTSYLVAN | VA |
| 2004-06-21 | 540-266-5XXX | 5000–5999 | Assigned | VERIZON VIRGINIA, INC. | 9213 | ROANOKE | VA |
| 2004-06-18 | 540-266-6XXX | 6000–6999 | Assigned | VERIZON VIRGINIA, INC. | 9213 | ROANOKE | VA |
| 2004-03-02 | 540-878-2XXX | 2000–2999 | Assigned | VERIZON VIRGINIA, INC. | 9213 | WARRENTON | VA |
| 2003-12-15 | 540-439-7XXX | 7000–7999 | Assigned | VERIZON VIRGINIA, INC. | 9213 | REMINGTON | VA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/24/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.