NumberResearchRecent thousands-block assignments
10 blocks assigned in March 2026 · from the daily NANPA thousands-block report, 09/19/2026
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 — NPA 531
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-03-31 | 531-435-7XXX | 7000–7999 | Assigned | AHOI LLC | 883K | HOWELLS | NE |
| 2026-03-18 | 531-372-8XXX | 8000–8999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | OMAHA | NE |
| 2026-03-18 | 531-372-9XXX | 9000–9999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | OMAHA | NE |
| 2026-03-18 | 531-437-0XXX | 0000–0999 | Assigned | COMPUTER TELEPHONY INNOVATIONS INC. DBA VOXTELESYS | 597J | OMAHA | NE |
| 2026-03-16 | 531-217-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PLATTSMTH | NE |
| 2026-03-16 | 531-358-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LOUISVILLE | NE |
| 2026-03-16 | 531-377-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | WAHOO | NE |
| 2026-03-13 | 531-394-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | ASHLAND | NE |
| 2026-03-11 | 531-231-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE | 5807 | CLAYCENTER | NE |
| 2026-03-06 | 531-427-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - NE | 7144 | LINCOLN | NE |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.