NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026
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 859
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-02-19 | 859-966-9XXX | 9000–9999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | INDEPNDNCE | KY |
| 2024-09-24 | 859-222-2XXX | 2000–2999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | LEXINGTON | KY |
| 2024-09-24 | 859-222-3XXX | 3000–3999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | LEXINGTON | KY |
| 2024-07-16 | 859-606-2XXX | 2000–2999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | NICHOLASVL | KY |
| 2023-05-17 | 859-692-6XXX | 6000–6999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | BOONE | KY |
| 2023-05-17 | 859-692-8XXX | 8000–8999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | BOONE | KY |
| 2023-04-24 | 859-429-4XXX | 4000–4999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | INDEPNDNCE | KY |
| 2023-04-24 | 859-966-1XXX | 1000–1999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | INDEPNDNCE | KY |
| 2023-02-08 | 859-370-9XXX | 9000–9999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | BURGIN | KY |
| 2022-08-18 | 859-439-1XXX | 1000–1999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | DANVILLE | KY |
| 2022-08-18 | 859-518-9XXX | 9000–9999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | FORD | KY |
| 2022-08-18 | 859-658-0XXX | 0000–0999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | CYNTHIANA | KY |
| 2022-08-18 | 859-704-8XXX | 8000–8999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | PARIS | KY |
| 2022-08-18 | 859-754-0XXX | 0000–0999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | BRYANTSVL | KY |
| 2022-08-18 | 859-974-1XXX | 1000–1999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HARRODSBG | KY |
| 2022-02-04 | 859-346-9XXX | 9000–9999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | LEXINGTON | KY |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.