NumberResearchRecent thousands-block assignments
17 blocks assigned in March 2026 · from the daily NANPA thousands-block report, 09/18/2026
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, March 2026
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| Assigned | Block | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2026-03-17 | 657-508-4XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | CYPRESS | CA |
| 2026-03-17 | 657-801-8XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | CYPRESS | CA |
| 2026-03-11 | 442-429-8XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | YUCCA VLY | CA |
| 2026-03-11 | 562-823-2XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | WHITTIER | CA |
| 2026-03-11 | 562-823-3XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | WHITTIER | CA |
| 2026-03-11 | 760-527-1XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | JULIAN | CA |
| 2026-03-11 | 805-515-2XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | VNTRA CNTL | CA |
| 2026-03-11 | 805-515-7XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | VNTRA CNTL | CA |
| 2026-03-11 | 820-244-3XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SANTAMARIA | CA |
| 2026-03-11 | 820-244-5XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SANTAMARIA | CA |
| 2026-03-03 | 661-676-6XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LANCASTER | CA |
| 2026-03-03 | 661-676-9XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LANCASTER | CA |
| 2026-03-03 | 760-592-9XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | EL CENTRO | CA |
| 2026-03-03 | 840-300-2XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | REDLANDS | CA |
| 2026-03-03 | 909-951-7XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | REDLANDS | CA |
| 2026-03-02 | 949-948-3XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | NEWPORTBCH | CA |
| 2026-03-02 | 949-948-4XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | NEWPORTBCH | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/18/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.